10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended March 31, 2026

OR

☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from                    to                   

Commission File No. 000-56575

Mercer Bancorp, Inc.

(Exact Name of Registrant as Specified in Its Charter)

Maryland	92-3452469
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)
1100 Irmscher Blvd, Celina, Ohio	45822
(Address of Principal Executive Offices)	(Zip Code)

(419) 586-5158

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Securities registered pursuant to Section 12(b) of the Act: None.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such requirements for the past 90 days.

YES ☒      NO ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). YES ☒ NO ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer ☐	Accelerated filer ☐
Non-accelerated filer ☒	Smaller reporting company ☒
	Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). YES ☐ NO ☒

As of May 11, 2026, 1,013,303 shares of the registrant’s common stock, par value $0.01 per share, were issued and outstanding.

Mercer Bancorp, Inc.

Form 10-Q

Index

		Page
Part I. – Financial Information
Item 1.	Consolidated Financial Statements	1
	Balance Sheets as of March 31, 2026 (unaudited) and September 30, 2025 (audited)	1
	Statements of Income for the Three and Six Months Ended March 31, 2026 and 2025 (unaudited)	2
	Statements of Comprehensive Income for the Three and Six Months Ended March 31, 2026 and 2025 (unaudited)	3
	Statements of Changes in Shareholders’ Equity for the Three and Six Months Ended March 31, 2026 and 2025 (unaudited)	4
	Statements of Cash Flows for the Six Months Ended March 31, 2026 and 2025 (unaudited)	5
	Notes to Financial Statements (unaudited)	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	43
Item 4.	Controls and Procedures	43
Part II. – Other Information
Item 1.	Legal Proceedings	43
Item 1A.	Risk Factors	44
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	44
Item 3.	Defaults Upon Senior Securities	44
Item 4.	Mine Safety Disclosures	44
Item 5.	Other Information	44
Item 6.	Exhibits	45
	Signature Page	46

Part I. – Financial Information

Item 1.Financial Statements

Mercer Bancorp, Inc.

Consolidated Balance Sheets

March 31, 2026 (unaudited) and September 30, 2025 (audited)

	March 31,		September 30,
	2026		2025
Assets
Cash and due from banks	$	2,600,454	$	2,576,165
Interest-bearing deposits in other financial institutions		2,229,165		713,022
Federal funds sold		1,122,000		2,074,000
Cash and cash equivalents		5,951,619		5,363,187
Interest-bearing time deposits		100,000		100,000
Debt securities, available-for-sale, at fair value		9,726,039		9,656,114
Held-to-maturity securities, at amortized cost		60,210		67,723
Loans held for sale		6,146,205		8,051,398
Loans receivable		142,711,469		143,257,565
Allowance for credit losses		(866,241)		(960,307)
Net loans		141,845,228		142,297,258
Premises and equipment		5,078,211		5,151,721
Federal Home Loan Bank stock		921,500		1,208,100
Bank owned life insurance		1,900,697		1,876,454
Accrued interest receivable		639,336		678,357
Federal Home Loan Bank lender risk account		421,737		434,749
Deferred federal income taxes		201,657		233,548
Other assets		943,294		1,053,048
Total assets	$	173,935,733	$	176,171,657
Liabilities and Shareholders' Equity
Liabilities
Deposits
Demand - non interest bearing	$	14,070,495	$	14,720,941
Demand - interest bearing		50,025,078		43,738,535
Savings and money market		34,448,299		35,242,936
Time		48,010,393		50,285,617
Total deposits		146,554,265		143,988,029
Advances from the Federal Home Loan Bank		1,000,000		6,000,000
Directors plan liability		349,560		370,729
Accrued interest payable and other liabilities		931,811		1,189,561
Total liabilities		148,835,636		151,548,319
Commitments and Contingencies
Shareholders' Equity
Preferred stock - authorized 1,000,000 shares of $0.01 par value, none issued		—		—
Common stock - authorized 9,000,000 shares of $0.01 par value, issued and outstanding 1,013,303 and 1,027,477 shares		9,818		9,959
at March 31, 2026 and September 30, 2025, respectively
Additional paid-in capital		8,225,708		8,368,876
Shares acquired by ESOP		(654,367)		(709,269)
Shares issued to irrevocable trust		96,360		96,360
Shares held in irrevocable trust		(96,360)		(96,360)
Retained earnings		17,787,027		17,343,618
Accumulated other comprehensive loss		(268,089)		(389,846)
Total shareholders' equity		25,100,097		24,623,338
Total liabilities and shareholders' equity	$	173,935,733	$	176,171,657

See Notes to Consolidated Financial Statements

1

Mercer Bancorp, Inc.

Consolidated Statements of Income

For the Three and Six Months Ended March 31, 2026 and 2025

(unaudited)

	Three Months Ended				Six Months Ended
	March 31,				March 31,
	2026		2025		2026		2025
Interest Income
Loans	$	2,231,741	$	2,153,054	$	4,424,154	$	4,323,346
Debt securities		85,631		84,748		169,167		170,715
Interest-bearing deposits and other		55,314		70,953		119,271		148,351
Total interest income		2,372,686		2,308,755		4,712,592		4,642,412
Interest Expense
Deposits		541,853		411,608		1,092,240		874,794
Federal Home Loan Bank advances		10,307		246,540		52,540		523,726
Total interest expense		552,160		658,148		1,144,780		1,398,520
Net Interest Income		1,820,526		1,650,607		3,567,812		3,243,892
Provision for Credit Losses		15,000		28,000		15,000		28,000
Net Interest Income After Provision for Credit Losses		1,805,526		1,622,607		3,552,812		3,215,892
Noninterest Income
Service fees on deposits		60,905		68,797		123,820		148,151
Late charges and fees on loans		39,016		26,960		79,026		62,613
Gain on sale of loans		3,037		6,984		3,037		12,152
Loan servicing fees		6,951		11,311		14,237		20,910
Loss on sale of investments		—		—		(12,088)		—
Gain on sale of foreclosed real estate		6,833		6,982		7,361		6,982
Bank owned life insurance		12,037		16,335		24,243		32,905
Other income		4,467		4,828		8,384		10,192
Total noninterest income		133,246		142,197		248,020		293,905
Noninterest Expense
Salaries and employee benefits		810,793		614,051		1,569,892		1,241,579
Directors fees		22,800		19,200		45,600		38,400
Occupancy and equipment		168,512		135,302		337,483		257,743
Data processing fees		151,304		367,797		348,784		547,375
Franchise taxes		37,812		40,260		71,852		72,037
FDIC insurance premiums		19,405		20,306		38,241		41,330
Professional services		122,788		181,608		269,109		286,178
Deposit account services expense		32,682		73,268		69,157		147,041
Advertising		19,103		18,810		47,261		42,805
Loan expenses		70,625		76,737		131,033		158,281
Other		147,504		174,199		328,206		288,334
Total noninterest expense		1,603,328		1,721,538		3,256,618		3,121,103
Income before income taxes		335,444		43,266		544,214		388,694
Provision for income taxes		63,305		7,899		100,805		77,019
Net Income	$	272,139	$	35,367	$	443,409	$	311,675
Earnings per share - basic	$	0.28	$	0.04	$	0.45	$	0.33
Earnings per share - diluted	$	0.28	$	0.04	$	0.45	$	0.33

2

See Notes to Consolidated Financial Statements

Mercer Bancorp, Inc.

Consolidated Statements of Comprehensive Income

For the Three and Six Months Ended March 31, 2026 and 2025

(unaudited)

	Three Months Ended				Six Months Ended
	March 31,				March 31,
	2026		2025		2026		2025
Net income	$	272,139	$	35,367	$	443,409	$	311,675
Other comprehensive (loss) income:
Net unrealized (losses) gains on debt securities available-for-sale		38,377		9,725		142,034		(247,831)
Reclassification adjustment for realized loss on sale of debt securities		—		—		12,088		—
Tax benefit (expense)		(8,060)		(2,043)		(32,365)		52,044
Other comprehensive (loss) income		30,317		7,682		121,757		(195,787)
Comprehensive income	$	302,456	$	43,049	$	565,166	$	115,888

See Notes to Consolidated Financial Statements

3

Mercer Bancorp, Inc.

Consolidated Statements of Changes in Shareholders’ Equity

For the Three and Six Months Ended March 31, 2026 and 2025

(unaudited)

													Accumulated
			Additional		Shares		Shares Issued		Shares Held				Other
For the three months ended	Common		Paid-in		Acquired by		to Irrevocable		to Irrevocable		Retained		Comprehensive
March 31, 2026	Stock		Capital		ESOP		Trust		Trust		Earnings		Loss		Total
Balance at January 1, 2026	$	9,946	$	8,421,360	$	(654,367)	$	96,360	$	(96,360)	$	17,514,888	$	(298,406)	$	24,993,421
Net income		—		—		—		—		—		272,139		—		272,139
Share based compensation		16		18,534		—		—		—		—		—		18,550
Repurchase of common stock, 14,468 shares		(144)		(214,186)		—		—		—		—		—		(214,330)
Other comprehensive income, net of tax		—		—		—		—		—		—		30,317		30,317
Balance at March 31, 2026	$	9,818	$	8,225,708	$	(654,367)	$	96,360	$	(96,360)	$	17,787,027	$	(268,089)	$	25,100,097
For the three months ended
March 31, 2025
Balance at January 1, 2025	$	10,229	$	8,672,640	$	(709,269)	$	96,360	$	(96,360)	$	16,647,621	$	(526,811)	$	24,094,410
Net income		—		—		—		—		—		35,367		—		35,367
Issuance of restricted stock		83		(83)		—		—		—		—		—		-
Repurchase of common stock, 16,997 shares		(170)		(239,957)		—		—		—		—		—		(240,127)
Other comprehensive income, net of tax		—		—		—		—		—		—		7,682		7,682
Balance at March 31, 2025	$	10,142	$	8,432,600	$	(709,269)	$	96,360	$	(96,360)	$	16,682,988	$	(519,129)	$	23,897,332

													Accumulated
			Additional		Shares		Shares Issued		Shares Held				Other
For the six months ended	Common		Paid-in		Acquired by		to Irrevocable		to Irrevocable		Retained		Comprehensive
March 31, 2026	Stock		Capital		ESOP		Trust		Trust		Earnings		Loss		Total
Balance at October 1, 2025	$	9,959	$	8,368,876	$	(709,269)	$	96,360	$	(96,360)	$	17,343,618	$	(389,846)	$	24,623,338
Net income		—		—		—		—		—		443,409		—		443,409
Share based compensation		16		60,317		—		—		—		—		—		60,333
ESOP shares allocated to participants		—		31,740		54,560		—		—		—		—		86,300
Repurchase of common stock, 15,810 shares		(157)		(235,225)		342		—		—		—		—		(235,040)
Other comprehensive income, net of tax		—		—		—		—		—		—		121,757		121,757
Balance at March 31, 2026	$	9,818	$	8,225,708	$	(654,367)	$	96,360	$	(96,360)	$	17,787,027	$	(268,089)	$	25,100,097
For the six months ended
March 31, 2025
Balance at October 1, 2024	$	10,229	$	8,658,653	$	(763,820)	$	96,360	$	(96,360)	$	16,371,313	$	(323,342)	$	23,953,033
Net income		—		—		—		—		—		311,675		—		311,675
Issuance of restricted stock		83		(83)		—		—		—		—		—		—
ESOP shares allocated to participants		—		13,987		54,551		—		—		—		—		68,538
Repurchase of common stock, 26,397 shares		(170)		(239,957)		—		—		—		—		—		(240,127)
Other comprehensive loss, net of tax		—		—		—		—		—		—		(195,787)		(195,787)
Balance at March 31, 2025	$	10,142	$	8,432,600	$	(709,269)	$	96,360	$	(96,360)	$	16,682,988	$	(519,129)	$	23,897,332

See Notes to Consolidated Financial Statements

4

Mercer Bancorp, Inc.

Consolidated Statements of Cash Flows

For the Six Months Ended March 31, 2026 and 2025

(unaudited)

	Six Months Ended
	March 31,
	2026		2025
Operating Activities
Net income	$	443,409	$	311,675
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization		231,801		87,653
Amortization of premiums and discounts		(2,191)		6,356
Amortization of deferred loan fees		(54,626)		(19,041)
Deferred income taxes		(474)		23,360
Provision for credit losses		15,000		28,000
ESOP compensation expense		86,300		68,538
Gain on sale of loans		(3,037)		(12,152)
Proceeds from sales of loans		175,721		520,183
Loans originated for sale		(175,000)		(665,448)
Loss on sale of investments		12,088		—
Gain on sale of foreclosed real estate		(7,361)		(6,982)
Increase in cash surrender value of bank-owned life insurance		(24,243)		(23,404)
Share based compensation		60,333		—
Changes in:
Accrued interest receivable		39,021		8,491
Other assets		193,681		(204,474)
Other liabilities		(268,505)		(19,640)
Net cash provided by operating activities		721,917		103,115
Investing Activities
Purchases of debt securities available-for-sale		(2,266,933)		(277,432)
Proceeds from sales of debt securities available-for-sale		2,058,697		—
Proceeds from calls, maturities and paydowns of debt securities available-for-sale		282,918		1,309,964
Principal repayments on debt securities held-to-maturity		7,130		14,452
Net change in loans		2,243,107		1,769,425
Purchase of premises and equipment		(152,455)		(1,073,812)
Purchases of FHLB stock		—		(80,100)
Proceeds from redemption of FHLB stock		286,600		—
Proceeds from sale of foreclosed assets		76,255		54,300
Net cash provided by investing activities		2,535,319		1,716,797
Financing Activities
Net change in deposits		2,566,236		4,232,288
Proceeds from FHLB advances - short term		—		41,000,000
Repayment of FHLB advances - short term		(5,000,000)		(46,000,000)
Repurchase of common stock		(235,040)		(240,127)
Net cash used in financing activities		(2,668,804)		(1,007,839)
Change in Cash and Cash Equivalents		588,432		812,073
Cash and Cash Equivalents, Beginning of Period		5,363,187		5,897,596
Cash and Cash Equivalents, End of Period	$	5,951,619	$	6,709,669
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for:
Interest on deposits and borrowings	$	1,114,603	$	1,312,038
Income taxes		—		300,000
Supplemental Disclosure of Noncash Investing Activities
Transfers from loans to foreclosed real estate	$	156,059	$	47,318

See Notes to Consolidated Financial Statements

5

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Note 1:    Nature of Operations and Summary of Significant Accounting Policies

Inclusion of Unaudited Information

The financial information included herein as of March 31, 2026, and for the interim three and six months periods ended March 31, 2026 and 2025 is unaudited. However, in management’s opinion, the information reflects all normal, recurring adjustments that are necessary for a fair presentation. The results shown for the three and six months ended March 31, 2026, are not necessarily indicative of the results to be obtained for the fiscal year ending September 30, 2026.

Nature of Operations

Mercer Bancorp, Inc. (“Mercer Bancorp” or the “Company”) is a Maryland corporation incorporated on March 7, 2023, to serve as the bank holding company for Mercer Savings Bank (“Mercer Savings” or the “Bank”) in connection with the Bank’s conversion from the mutual form of organization to the stock form of organization (the “Conversion”). The Conversion was completed on July 26, 2023. In connection with the Conversion, Mercer Bancorp acquired 100% ownership of Mercer Savings and the Company offered and sold 972,970 shares of its common stock at $10.00 per share, for gross offering proceeds of $9,729,700. The Company also contributed 50,000 shares of common stock and $100,000 in cash to Mercer Savings Charitable Foundation, Inc.

Mercer Savings is an Ohio chartered stock bank engaged primarily in the business of providing a variety of deposit and lending services to individual customers primarily in Mercer and Darke counties in Ohio, and Adams and Jay counties in Indiana. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential and commercial mortgage, agricultural, commercial, home equity lines of credit and installment loans, and indirect automobile loans. Its operations are conducted through its four office locations in Celina, Ft. Recovery and Greenville, Ohio, one office location in Berne, Indiana, and a mobile branch serving Geneva and Decatur, Indiana. The Bank faces competition from other financial institutions and is subject to the regulation of certain federal and state banking agencies and undergoes periodic examinations by those regulatory authorities.

Principles of Consolidation

The consolidated financial statements as of and for the three and six months ended March 31, 2026, include the accounts of the Company and the Bank, its wholly-owned subsidiary. All intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, valuation of mortgage servicing rights and deferred tax assets and fair values of financial instruments.

6

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Debt Securities

Debt securities held by the Company generally are classified and recorded in the financial statements as follows:

Classified as	Description	Recorded at
Held to maturity (“HTM”)	Certain debt securities that management has the positive intent and ability to hold to maturity	Amortized cost, net of allowance for credit losses
Trading	Securities that are bought and held principally for the purpose of selling in the near term and, therefore, held for only a short period of time	Fair value, with changes in fair value included in earnings
Available for sale (“AFS”)	Securities not classified as HTM or trading	Fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income (loss)

Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities, identified as the call date as to premiums and maturity date as to discounts. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.

Loans Held for Sale

Mortgage and indirect auto loans originated and intended for sale in the secondary market are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to noninterest income. Gains and losses on loan sales are recorded in noninterest income, and direct loan origination costs and fees are deferred at origination of the loan and are recognized in noninterest income upon sale of the loan.

Lender Risk Account (LRA)

The Federal Home Loan Bank (FHLB) requires institutions participating in its mortgage loan sales program to place a portion of the sale proceeds in a lender risk account (LRA). The LRA is maintained to offset any credit losses associated with loans sold to the FHLB by the participating institution as well as losses experienced by the overall loan pool should an individual institution’s LRA be fully exhausted. The loan sale agreements provide for the FHLB to begin distributions of the LRA funds to the Company after loan pools have had five years of payment history. After five years, the required LRA balance is recalculated at least annually and excess amounts are returned to the participating institutions.

Loans

Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances, adjusted for unearned income, charge-offs, the allowance for credit losses and any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.

For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan. For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition

7

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For individually evaluated loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.

The Company charges-off loans, or portions thereof, when the Company reasonably determines the amount of the loss. The Bank adheres to delinquency thresholds established by applicable regulatory guidance to determine the charge-off timeframe for these loans. Loans at these delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.

For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

When cash payments are received on individually evaluated loans, the Company records the payment as interest income unless collection of the remaining recorded principal amount is doubtful, at which time payments are used to reduce the principal balance of the loan. Loans to borrowers experiencing financial difficulties that have been modified recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least nine months.

Allowance for Credit Losses

Debt Securities Available-for-Sale

For available for sale debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through income.

For debt securities available-for-sale that do not meet the above criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, the Company considers the extent to which fair value is less than amortized cost and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of the cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income, net of tax. The Company elected the practical expedient of zero loss estimates for securities issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on available-for-sale debt securities at March 31, 2026 and September 30, 2025.

Accrued interest receivable on available-for-sale debt securities totaled $76,355 and $86,443 at March 31, 2026 and September 30, 2025, respectively, and is included within accrued interest receivable on the consolidated balance sheets. This amount is excluded from the estimate of expected credit losses. Available-for-sale debt securities are typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest. When available-for-sale debt securities are placed on nonaccrual status, unpaid interest credited to income is reversed.

8

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Debt Securities Held-to-Maturity

The Company measures expected credit losses on held-to-maturity debt securities, which are comprised of U.S. government sponsored enterprise mortgage-back securities and residential mortgage-backed securities. The Company’s residential mortgage-backed security holdings are issued by U.S. government entities and agencies and are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on held-to-maturity debt securities at March 31, 2026 and September 30, 2025.

Accrued interest receivable on held-to-maturity debt securities totaled $289 and $334 at March 31, 2026 and September 30, 2025, respectively, and is included within accrued interest receivable on the consolidated balance sheets. This amount is excluded from the estimate of expected credit losses. Held-to-maturity debt securities are typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest. When held-to-maturity debt securities are placed on nonaccrual status, unpaid interest credited to income is reversed.

Loans

The allowance for credit losses (ACL) is a valuation allowance that is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on the loans. Loan losses are charged against the allowance when management believes the collectibility of a loan balance is doubtful. Subsequent recoveries, if any, are credited to the allowance. Management’s determination of the adequacy of the ACL is based on the assessment of the expected credit losses on loans over the expected life of the loan. The ACL is increased by provision expense and decreased by charge-offs, net of recoveries of amounts previously charged off and expected to be charged off. The Company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses.

Management estimates the ACL balance using relevant available information from both internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience of a defined peer group, by affiliate, paired with economic forecasts provide the basis for the quantitatively modeled estimates of expected credit losses. The Company adjusts its quantitative model, as necessary, to reflect conditions not already considered by the quantitative model. These adjustments are commonly known as the qualitative factors.

The ACL is measured on a collective (pool) basis when similar risk characteristics exist. The Company uses the average historical loss method to measure the quantitative portion of the ACL over the forecast and reversion periods.

Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. The company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses.

Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a loan modified to a borrower experiencing financial difficulty will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company.

9

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Accrued interest receivable on loans totaled $553,559 and $560,972 at March 31, 2026 and September 30, 2025, respectively, and is included within accrued interest receivable on the consolidated balance sheets. This amount is excluded from the estimate of expected credit losses.

In the course of working with borrowers, the Bank may choose to restructure the contractual terms of certain loans. Terms may be modified to fit the ability of the borrower to repay in line with the borrower’s current financial status, and the modification of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms or a combination of the two. If such efforts by the Bank do not result in a satisfactory arrangement, the loan is referred to legal counsel, at which time foreclosure proceedings are initiated. At any time prior to a sale of the property at foreclosure, the Bank may terminate foreclosure proceedings if the borrower is able to work out a satisfactory payment plan.

It is the Bank’s policy that any loans modified for borrowers experiencing financial difficulty on nonaccrual status prior to being modified remain on nonaccrual status until nine months of satisfactory borrower performance, at which time management would consider its return to accrual status. If a loan was accruing at the time of restructuring, the Bank reviews the loan to determine if it is appropriate to continue the accrual of interest on the restructured loan

Unfunded Commitments

The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL on unfunded commitments is adjusted through the provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life consistent with the related ACL methodology.

Servicing Assets

When mortgage loans are sold with servicing retained, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing assets are included in other assets on the consolidated balance sheets.

Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. No changes in valuation allowances have been reported on the income statements. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses.

Servicing fee income, which is reported on the consolidated income statement as other noninterest income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income.

10

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Employee Stock Ownership Plan (ESOP)

The cost of shares issued to the Employee Stock Ownership Plan (“ESOP”), but not yet allocated to participants, is shown as a reduction of shareholders’ equity. Compensation expense is based on the average fair value of shares as they are committed to be released to participant accounts.

Earnings Per Share

Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the period. Unallocated common shares held by the ESOP are shown as a reduction in shareholders’ equity and are excluded from weighted-average common shares outstanding for both basic and diluted earnings per share calculations until they are committed to be released.

Diluted earnings per share is adjusted for the dilutive effects of stock-based compensation and is calculated using the two-class method or the treasury stock method. The diluted average number of common shares outstanding has been increased for the assumed exercise of stock-based compensation with the proceeds used to purchase treasury shares at the average market price for the period.

Revenue Recognition

The Company accounts for certain revenues in accordance with Accounting Standards Update (“ASU”) 2014-09 Revenue from Contracts with Customers (ASC 606) and all subsequent ASUs that modified ASC 606. ASC 606 provides that an entity should recognize revenue to depict the transfer of promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The majority of the Company’s revenue, including net interest income, fees related to loans and loan commitments, net securities gains (losses), gain on sale of loans and income from bank-owned life insurance are not included within the scope of ASC 606. For the revenue streams in the scope of ASC 606, service charges on deposits and electronic banking fees, there are no significant judgments related to the amount and timing of revenue recognition. All of the Company’s in scope revenue from contracts with customers is recognized within other noninterest income.

Deposit Services. The Bank generates revenues through fees charged to depositors related to deposit account maintenance fees, overdrafts, ATM fees, wire transfers and additional miscellaneous services provided at the request of the depositor.

For deposit-related services, revenue is recognized when performance obligations are satisfied, which is, generally, at a point in time.

Stock Compensation Plans

The Company accounts for stock compensation in accordance with accounting guidance set forth in Financial Accounting Standards Board (“FASB”) ASC Topic 718, Compensation—Stock Compensation, which requires that compensation costs relating to share-based payment transactions be recognized in financial statements. The cost is measured based on the grant date fair value of the equity instruments issued. The stock compensation accounting guidance covers a wide range of share-based compensation arrangements including stock options, restricted share plans, performance-based awards, share appreciation rights, and employee share purchase plans.

The stock compensation accounting guidance requires that compensation costs for all stock awards be calculated and recognized over the directors or employees’ service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. A Black-Scholes model is used to estimate the fair value of stock options. An option is considered to be forfeited, if the grant stock option were not exercised prior to vesting. At the date of grant, the Bank estimates the

11

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

forfeiture rate as part of its initial determination of the fair-value of options granted and then adjusts forfeitures as they occur.

Note 2:    Debt Securities

The amortized cost and fair values, together with gross unrealized gains and losses of securities are as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Available-for-sale Debt Securities:
March 31, 2026
U.S. Government agencies	$	1,101,652	$	17,382	$	(6,307)	$	1,112,727
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,631,260		32,818		(162,504)		3,501,574
State and political subdivisions		5,332,480		23,950		(244,692)		5,111,738
	$	10,065,392	$	74,150	$	(413,503)	$	9,726,039

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Available-for-sale Debt Securities:
September 30, 2025
U.S. Government agencies		2,476,121		17,389		(5,960)		2,487,550
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,984,674		26,641		(188,437)		3,822,878
State and political subdivisions		3,688,794		—		(343,108)		3,345,686
	$	10,149,589	$	44,030	$	(537,505)	$	9,656,114

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Held-to-maturity Debt Securities:
March 31, 2026
Mortgage-backed Government Sponsored Enterprises (GSEs)	$	60,210	$	—	$	(610)	$	59,600
			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Held-to-maturity Debt Securities:
September 30, 2025
Mortgage-backed Government Sponsored Enterprises (GSEs)	$	67,723	$	—	$	(543)	$	67,180

12

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The Company had no allowance for credit losses on available-for-sale and held-to-maturity debt securities at March 31, 2026 and September 30, 2025.

The amortized cost and fair value of available-for-sale debt securities at March 31, 2026 by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties:

	Amortized		Fair
	Cost		Value
March 31, 2026
Within one year	$	—	$	—
One to five years		—		—
Five to ten years		1,330,145		1,307,917
After ten years		5,103,987		4,916,548
		6,434,132		6,224,465
Mortgage-backed GSEs		3,631,260		3,501,574
Totals	$	10,065,392	$	9,726,039

Maturity information for held-to-maturity debt securities is not presented since expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

The carrying value of securities pledged as collateral, to secure public deposits and for other purposes, was approximately $1.1 million at March 31, 2026 and September 30, 2025.

There were no sales of available for sale debt securities during the three month period ended March 31, 2026. Proceeds from sales of available for sale debt securities totaled approximately $2.1 million during the six-month period ended March 31, 2026, resulting in gross realized losses of $12,000.

Certain investments in debt securities are reported in the financial statements at an amount less than their historical cost. Total fair value of these investments, comprised of 19 securities at March 31, 2026 and 25 securities at September 30, 2025, was approximately $6.4 million and $8.4 million or 65% and 86%, respectively, of the fair value of the Company’s total investment portfolio. These declines primarily resulted from changes in market interest rates.

Based on evaluation of available evidence, including recent changes in market interest rates and information obtained from regulatory filings, management believes the declines in fair value for these securities are not credit-related.

13

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The following tables show the Company’s investments’ gross unrealized losses and fair value of the Company’s investments with unrealized losses, for which an allowance for credit loss has not been recorded, aggregated by investment class and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2026 and September 30, 2025:

	March 31, 2026
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Debt Securities	Value		Losses		Value		Losses		Value		Losses
Available for sale
U.S. Government agencies	$	617,693	$	(6,307)	$	—	$	—	$	617,693	$	(6,307)
Mortgage-backed Government Sponsored Enterprises (GSEs)		—		—		2,694,576		(162,504)		2,694,576		(162,504)
State and political subdivisions		569,560		(7,450)		2,485,341		(237,242)		3,054,901		(244,692)
	$	1,187,253	$	(13,757)	$	5,179,917	$	(399,746)	$	6,367,170	$	(413,503)
Held to maturity
Mortgage-backed Government Sponsored Enterprises (GSEs)		—	$	—	$	59,600		(610)		59,600		(610)
Total	$	1,187,253	$	(13,757)	$	5,239,517	$	(400,356)	$	6,426,770	$	(414,113)

	September 30, 2025
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Debt Securities	Value		Losses		Value		Losses		Value		Losses
Available for sale
U.S. Government agencies	$	—	$	—	$	1,994,040	$	(5,960)	$	1,994,040	$	(5,960)
Mortgage-backed Government Sponsored Enterprises (GSEs)		560,974		(15,975)		2,418,879		(172,462)		2,979,853		(188,437)
State and political subdivisions		1,414,624		(67,653)		1,931,062		(275,455)		3,345,686		(343,108)
	$	1,975,598	$	(83,628)	$	6,343,981	$	(453,877)	$	8,319,579	$	(537,505)
Held to maturity
Mortgage-backed Government Sponsored Enterprises (GSEs)		—		—		67,180		(543)		67,180		(543)
Total	$	1,975,598	$	(83,628)	$	6,411,161	$	(454,420)	$	8,386,759	$	(538,048)

U.S. Government Agencies and State and Political Subdivisions

Unrealized losses on these securities have not been recognized because the issuers’ bonds are of high credit quality, values have only been impacted by changes in interest rates since the securities were purchased, and the Company has the intent and ability to hold the securities for the foreseeable future. The fair value is expected to recover as the bonds approach the maturity date. Because the decline in market value was attributable to changes in interest rates, and not credit quality, and because the Company typically does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company has not established an allowance for credit losses for these securities at March 31, 2026 and September 30, 2025.

14

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Mortgage-backed GSEs

The unrealized losses on the Company’s investment in residential mortgage-backed government sponsored enterprises were caused primarily by changes in interest rates. The Company expects to recover the amortized cost basis over the term of the securities. Because the decline in market value is attributable to changes in interest rates, and not credit quality, and because the Company typically does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company has not established an allowance for credit losses for these securities at March 31, 2026 and September 30, 2025.

Note 3:    Loans and Allowance for Credit Losses

Categories of loans were as follows:

	March 31,		September 30,
	2026		2025
Real estate loans:
Residential	$	87,860,463	$	78,774,355
Multi-family		1,012,288		1,204,664
Agricultural		37,472,449		46,317,040
Commercial		2,276,659		2,326,429
Construction and land		5,014,490		4,264,994
Home equity line of credit (HELOC)		4,320,535		4,771,614
Commercial and industrial		1,089,499		1,233,406
Consumer		4,393,219		5,085,548
Total loans		143,439,602		143,978,050
Less:
Undisbursed loans in process		433,789		415,915
Net deferred loan fees		294,344		304,570
Allowance for credit losses		866,241		960,307
Net loans	$	141,845,228	$	142,297,258

Mortgage loans serviced for others are not included in the accompanying consolidated balance sheets. The unpaid principal balances of these loans at March 31, 2026 and September 30, 2025, were approximately $15.6 million and $16.4 million respectively. At March 31, 2026 and September 30, 2025 the mortgage-servicing rights included in other assets on the consolidated balance sheets were approximately $106,000 and $111,000, respectively.

15

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The following tables present the activity in the allowance for credit losses based on portfolio segment for the three and six months ended March 31, 2026 and 2025.

	Three Months Ended March 31, 2026
			Provision
	Balance		(credit)						Balance
	January 1, 2026		for credit losses		Charge-offs		Recoveries		March 31, 2026
Real estate loans:
Residential	$	714,027	$	(40,750)	$	—	$	—	$	673,277
Multi-family		2,379		(354)		—		—		2,025
Agricultural		84,057		(9,112)		—		—		74,945
Commercial		4,588		(35)		—		—		4,553
Construction and land		8,905		1,124		—		—		10,029
Home equity line of credit (HELOC)		14,369		(1,407)		—		—		12,962
Commercial and industrial		2,158		75		—		—		2,233
Consumer		82,887		65,459		(182,315)		120,186		86,217
Allowance for credit losses on loans	$	913,370	$	15,000	$	(182,315)	$	120,186	$	866,241

	Three Months Ended March 31, 2025
			Provision
	Balance		(credit)						Balance
	January 1, 2025		for credit losses		Charge-offs		Recoveries		March 31, 2025
Real estate loans:
Residential	$	664,053	$	(6,655)	$	—	$	—	$	657,398
Multi-family		2,501		(36)		—		—		2,465
Agricultural		112,248		(2,537)		—		—		109,711
Commercial		4,598		(111)		—		—		4,487
Construction and land		81,785		(8,853)		—		—		72,932
Home equity line of credit (HELOC)		14,695		(420)		—		—		14,275
Commercial and industrial		3,358		65		—		—		3,423
Consumer		76,533		46,547		(125,040)		71,227		69,267
Total loans	$	959,771	$	28,000	$	(125,040)	$	71,227	$	933,958

16

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

	Six Months Ended March 31, 2026
			Provision
	Balance		(credit)						Balance
	October 1, 2025		for credit losses		Charge-offs		Recoveries		March 31, 2026
Real estate loans:
Residential	$	745,709	$	(72,432)	$	—	$	—	$	673,277
Multi-family		2,409		(384)		—		—		2,025
Agricultural		92,634		(17,689)		—		—		74,945
Commercial		4,653		(100)		—		—		4,553
Construction and land		8,530		1,499		—		—		10,029
Home equity line of credit (HELOC)		14,315		(1,353)		—		—		12,962
Commercial and industrial		2,453		(220)		—		—		2,233
Consumer		89,604		105,679		(294,700)		185,634		86,217
Allowance for credit losses on loans	$	960,307	$	15,000	$	(294,700)	$	185,634	$	866,241

	Six Months Ended March 31, 2025
			Provision
	Balance		(credit)						Balance
	October 1, 2024		for credit losses		Charge-offs		Recoveries		March 31, 2025
Real estate loans:
Residential	$	691,852	$	(34,454)	$	—	$	—	$	657,398
Multi-family		2,525		(60)		—		—		2,465
Agricultural		107,284		2,427		—		—		109,711
Commercial		4,917		(430)		—		—		4,487
Construction and land		92,660		(19,728)		—		—		72,932
Home equity line of credit (HELOC)		14,910		(635)		—		—		14,275
Commercial and industrial		3,314		109		—		—		3,423
Consumer		45,806	$	80,771		(129,452)		72,142		69,267
Allowance for credit losses on loans	$	963,268	$	28,000	$	(129,452)	$	72,142	$	933,958

The Company had $639,000 of loans individually evaluated at March 31, 2026, and $1.6 million of loans individually evaluated at September 30, 2025. The Company had no loans identified as collateral dependent at March 31, 2026 or September 30, 2025.

17

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The Company has adopted a standard loan grading system for all loans, as follows:

Pass. Loans of sufficient quality, which generally are protected by the current net worth and paying capacity of the obligor or by the value of the asset or underlying collateral.

Special Mention. Loans have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Bank’s credit position at some future date.

Substandard. Loans which are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Usually, this classification includes all 90 days or more, non-accrual, and past due loans.

Doubtful. Loans which have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

Loss. Loans considered uncollectible and of such little value that continuance as an asset without the establishment of a specific reserve is not warranted.

Risk characteristics of each loan portfolio segment are described as follows:

Residential Real Estate

These loans include first liens and junior liens on 1-4 family residential real estate (both owner and non-owner occupied). The main risks for these loans are changes in the value of the collateral and stability of the local economic environment and its impact on the borrowers’ employment. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Multi-family Real Estate

These loans include loans on residential real estate secured by property with five or more units. The main risks are changes in the value of the collateral, ability of borrowers to collect rents, vacancy and changes in the tenants’ employment status. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Agriculture Real Estate

These loans are primarily loans on farm ground and include loans secured by residential properties located on farm ground, but agricultural activities may not be the primary occupation of the borrowers. The main risks are changes in the value of the collateral and changes in the economy or borrowers’ business operations. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Commercial Real Estate

These loans are generally secured by owner-occupied commercial real estate including warehouses and offices. The main risks are changes in the value of the collateral and ability of borrowers to successfully conduct their business operations. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

18

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Construction and Land Real Estate

These loans include construction loans for 1-4 family residential and commercial properties (both owner and non-owner occupied) and first liens on land. The main risks for construction loans include uncertainties in estimating costs of construction and in estimating the market value of the completed project. The main risks for land loans are changes in the value of the collateral and stability of the local economic environment. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

HELOC

These loans are generally secured by owner-occupied 1-4 family residences. The main risks for these loans are changes in the value of the collateral and stability of the local economic environment and its impact on the borrowers’ employment. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Commercial and Industrial

The commercial and industrial portfolio includes loans to commercial customers for use in financing working capital needs, equipment purchases and expansions. The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation. Credit risk in these loans is driven by creditworthiness of the borrower and the economic conditions that impact the cash flow stability from business operations.

Consumer Loans

These loans include vehicle loans, share loans and unsecured loans. The main risks for these loans are the depreciation of the collateral values (vehicles) and the financial condition of the borrowers. Major employment changes are specifically considered by management.

19

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Information regarding the credit quality indicators most closely monitored for other than residential real estate loans by class as of March 31, 2026 and September 30, 2025, follows:

	Term Loans Amortized Cost Basis by Origination Year													Revolving Loans		Revolving Loans
	For The Years Ending September 30,													Amortized		Converted
	2026		2025		2024		2023		2022		Prior			Cost Basis		to Term	Total
March 31, 2026
Commercial real estate
Risk Rating
Pass	$	-	$	189,317	$	367,869	$	-	$	721,976	$	997,497	$	-	$	-	$	2,276,659
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	189,317	$	367,869	$	-	$	721,976	$	997,497	$	-	$	-	$	2,276,659
Commercial real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Construction and land
Risk Rating
Pass	$	2,024,687	$	1,066,136	$	1,764,494	$	23,418	$	61,688	$	74,067	$	-	$	-	$	5,014,490
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	2,024,687	$	1,066,136	$	1,764,494	$	23,418	$	61,688	$	74,067	$	-	$	-	$	5,014,490
Construction and land
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Commercial and industrial
Risk Rating
Pass	$	-	$	-	$	-	$	-	$	-	$	301,217	$	788,282	$	-	$	1,089,499
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	-	$	301,217	$	788,282	$	-	$	1,089,499
Commercial and industrial
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Multi Family
Risk Rating
Pass	$	-	$	-	$	-	$	-	$	915,880	$	96,408	$	-	$	-	$	1,012,288
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	915,880	$	96,408	$	-	$	-	$	1,012,288
Multi Family
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Agricultural
Risk Rating
Pass	$	-	$	2,409,758	$	11,900,387	$	8,269,182	$	7,295,759	$	7,597,363	$	-	$	-	$	37,472,449
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	2,409,758	$	11,900,387	$	8,269,182	$	7,295,759	$	7,597,363	$	-	$	-	$	37,472,449
Agricultural
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Total
Risk Rating
Pass	$	2,024,687	$	3,665,211	$	14,032,750	$	8,292,600	$	8,995,303	$	9,066,552	$	788,282	$	-	$	46,865,385
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	2,024,687	$	3,665,211	$	14,032,750	$	8,292,600	$	8,995,303	$	9,066,552	$	788,282	$	-	$	46,865,385

20

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

	Term Loans Amortized Cost Basis by Origination Year													Revolving Loans		Revolving Loans
	For The Years Ending September 30,													Amortized		Converted
	2025		2024		2023		2022		2021		Prior			Cost Basis		to Term	Total
September 30, 2025
Commercial real estate
Risk Rating
Pass	$	190,000	$	369,645	$	-	$	731,021	$	905,151	$	130,612	$	-	$	-	$	2,326,429
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	190,000	$	369,645	$	-	$	731,021	$	905,151	$	130,612	$	-	$	-	$	2,326,429
Commercial real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Construction and land
Risk Rating
Pass	$	918,152	$	3,176,710	$	-	$	87,960	$	13,578	$	21,899	$	-	$	-	$	4,218,299
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		46,695		-		-		46,695
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	918,152	$	3,176,710	$	-	$	87,960	$	13,578	$	68,594	$	-	$	-	$	4,264,994
Construction and land
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Commercial and industrial
Risk Rating
Pass	$	-	$	-	$	-	$	-	$	124,594	$	257,022	$	851,790	$	-	$	1,233,406
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	124,594	$	257,022	$	851,790	$	-	$	1,233,406
Commercial and industrial
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Multi Family
Risk Rating
Pass	$	-	$	-	$	-	$	929,569	$	-	$	275,095	$	-	$	-	$	1,204,664
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	929,569	$	-	$	275,095	$	-	$	-	$	1,204,664
Multi Family
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Agricultural
Risk Rating
Pass	$	901,007	$	15,856,843	$	10,492,312	$	7,589,939	$	4,318,434	$	6,467,816	$	-	$	-	$	45,626,351
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		293,231		250,092		-		147,366		-		-		690,689
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	901,007	$	15,856,843	$	10,785,543	$	7,840,031	$	4,318,434	$	6,615,182	$	-	$	-	$	46,317,040
Agricultural
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Total
Risk Rating
Pass	$	2,009,159	$	19,403,198	$	10,492,312	$	9,338,489	$	5,361,757	$	7,152,444	$	851,790	$	-	$	54,609,149
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		293,231		250,092		-		194,061		-		-		737,384
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	2,009,159	$	19,403,198	$	10,785,543	$	9,588,581	$	5,361,757	$	7,346,505	$	851,790	$	-	$	55,346,533

21

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The Company monitors the credit risk profile by payment activity for residential and consumer loan classes.  Loans past due 90 days or more and loans on nonaccrual status are considered nonperforming. Nonperforming loans are reviewed monthly. The following table presents the amortized cost in residential and consumer loans based on payment activity:

	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans		Revolving Loans
	For The Years Ending September 30,												Amortized		Converted
	2026		2025		2024		2023		2022		Prior		Cost Basis		to Term		Total
March 31, 2026
Residential real estate
Payment Performance
Performing	$	16,268,460	$	12,461,734	$	6,181,169	$	4,319,691	$	12,003,258	$	36,350,688	$	4,320,535	$	86,761	$	91,992,296
Nonperforming		-		-		-		-		-		188,702		-		-		188,702
Total	$	16,268,460	$	12,461,734	$	6,181,169	$	4,319,691	$	12,003,258	$	36,539,390	$	4,320,535	$	86,761	$	92,180,998
Residential real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Consumer
Payment Performance
Performing	$	504,919	$	1,230,865	$	172,374	$	2,393,935	$	23,218	$	22,761	$	-	$	-	$	4,348,072
Nonperforming		-		-		-		45,147		-		-		-		-		45,147
Total	$	504,919	$	1,230,865	$	172,374	$	2,439,082	$	23,218	$	22,761	$	-	$	-	$	4,393,219
Consumer
Current period gross charge-offs	$	-	$	57,363	$	210,172	$	27,165	$	-	$	-	$	-	$	-	$	294,700
Total
Payment Performance
Performing	$	16,773,379	$	13,692,599	$	6,353,543	$	6,713,626	$	12,026,476	$	36,373,449	$	4,320,535	$	86,761	$	96,340,368
Nonperforming		-		-		-		45,147		-		188,702		-		-		233,849
Total	$	16,773,379	$	13,692,599	$	6,353,543	$	6,758,773	$	12,026,476	$	36,562,151	$	4,320,535	$	86,761	$	96,574,217
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans		Revolving Loans
	For The Years Ending September 30,												Amortized		Converted
	2025		2024		2023		2022		2021		Prior		Cost Basis		to Term		Total
September 30, 2025
Residential real estate
Payment Performance
Performing	$	12,630,915	$	8,140,586	$	5,183,326	$	9,284,260	$	17,417,339	$	25,437,880	$	4,771,614	$	98,177	$	82,964,097
Nonperforming		-		-		-		116,431		259,992		205,449		-		-		581,872
Total	$	12,630,915	$	8,140,586	$	5,183,326	$	9,400,691	$	17,677,331	$	25,643,329	$	4,771,614	$	98,177	$	83,545,969
Residential real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Consumer
Payment Performance
Performing	$	1,545,259	$	146,486	$	3,255,323	$	49,261	$	23,431	$	36,588	$	-	$	-	$	5,056,348
Nonperforming		-		26,873		-		2,327		-		-		-		-		29,200
Total	$	1,545,259	$	173,359	$	3,255,323	$	51,588	$	23,431	$	36,588	$	-	$	-	$	5,085,548
Consumer
Current period gross charge-offs	$	156	$	18,040	$	138,992	$	-	$	-	$	-	$	-	$	-	$	157,188
Total
Payment Performance
Performing	$	14,176,174	$	8,287,072	$	8,438,649	$	9,333,521	$	17,440,770	$	25,474,468	$	4,771,614	$	98,177	$	88,020,445
Nonperforming		-		26,873		-		118,758		259,992		205,449		-		-		611,072
Total	$	14,176,174	$	8,313,945	$	8,438,649	$	9,452,279	$	17,700,762	$	25,679,917	$	4,771,614	$	98,177	$	88,631,517

The Company evaluates the loan risk grading system definitions on an ongoing basis. No significant changes were made during the three months ended March 31, 2026 or the year ended September 30, 2025.

22

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The following tables present the Bank’s loan portfolio aging analysis of the recorded investment in loans as of March 31, 2026 and September 30, 2025:

	March 31, 2026
					Greater Than								Total Loans >
	30-59 Days		60-89 Days		90 Days		Total					Total Loans	90 Days &
	Past Due		Past Due		Past Due		Past Due		Current			Receivable	Accruing
Real estate loans:
Residential	$	602,053	$	—	$	124,510	$	726,563	$	87,133,900	$	87,860,463	$	—
Multi-family		—		—		—		—		1,012,288		1,012,288		—
Agricultural		—		—		—		—		37,472,449		37,472,449		—
Commercial		—		—		—		—		2,276,659		2,276,659		—
Construction and land		—		—		44,918		44,918		4,969,572		5,014,490		—
Home equity line of credit (HELOC)		—		—		—		—		4,320,535		4,320,535		—
Commercial and industrial		—		—		—		—		1,089,499		1,089,499		—
Consumer		103,531		—		45,147		148,678		4,244,541		4,393,219		45,147
Total	$	705,584	$	—	$	214,575	$	920,159	$	142,519,443	$	143,439,602	$	45,147

	September 30, 2025
					Greater than								Total Loans>
	30-59 Days		60-89 Days		90 Days		Total				Total Loans		90 Days &
	Past Due		Past Due		Past Due		Past Due		Current		Receivable		Accruing
Real estate loans:
Residential	$	575,867	$	220,713	$	581,873	$	1,378,453	$	77,395,902	$	78,774,355	$	116,431
Multi-family		—		—		—		—		1,204,664		1,204,664		—
Agricultural		—		156,881		690,990		847,871		45,469,169		46,317,040		440,598
Commercial		—		—		—		—		2,326,429		2,326,429		—
Construction and land		—		—		46,695		46,695		4,218,299		4,264,994		46,695
Home equity line of credit (HELOC)		—		—		—		—		4,771,614		4,771,614		—
Commercial and industrial		24,814		—		—		24,814		1,208,592		1,233,406		—
Consumer		21,247		—		29,200		50,447		5,035,101		5,085,548		29,200
Total	$	621,928	$	377,594	$	1,348,758	$	2,348,280	$	141,629,770	$	143,978,050	$	632,924

The Company had no loans identified as collateral dependent as of March 31, 2026 and September 30, 2025.

23

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The Company’s total nonaccrual loans at March 31, 2026 and September 30, 2025, were as follows:

	Nonaccrual Loans						Loans Past Due
	With No Allowance		With Allowance				Over 90 Days		Total
	for Credit Loss		for Credit Loss		Total		and Still Accruing		Nonperforming
March 31, 2026
Residential real estate loans	$	184,792	$	3,910	$	188,702	$	—	$	188,702
Agricultural		-		—		-		—		-
Consumer		—		—		—		45,147		45,147
	$	184,792	$	3,910	$	188,702	$	45,147	$	233,849
	Nonaccrual Loans						Loans Past Due
	With No Allowance		With Allowance				Over 90 Days		Total
	for Credit Loss		for Credit Loss		Total		and Still Accruing		Nonperforming
September 30, 2025
Residential real estate loans	$	461,488	$	3,953	$	465,441	$	116,431	$	581,872
Construction and land		250,092		—		250,092		440,598		690,690
Commercial and industrial		-		—		-		46,695		46,695
Consumer		-		—		-		29,200		29,200
	$	711,580	$	3,953	$	715,533	$	632,924	$	1,348,457

There were no loans modified for borrowers experiencing financial difficulty during the three months ended March 31, 2026 and 2025 and during the year ended September 30, 2025. There were no loans modified for borrowers experiencing financial difficulty in the past 12 months that subsequently defaulted during the three months ended March 31, 2026 and 2025 and during the year ended September 30, 2025.

Note 4:    Regulatory Matters

The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities and certain off-balance-sheet items as calculated under U.S. GAAP reporting requirements and regulatory capital standards. The Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Furthermore, the Bank’s regulators could require adjustments to regulatory capital not reflected in these financial statements.

Quantitative measures established by regulatory reporting standards to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined) to risk-weighted assets (as defined), common equity Tier I capital (as defined) to total risk-weighted assets (as defined) and of Tier I capital (as defined) to average assets (as defined). Management believes, as of March 31, 2026, that the Bank met all capital adequacy requirements to which it is subject.

As of March 31, 2026 the most recent notification from the regulators categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based capital, Tier I risk-based capital, common equity Tier I risk-based capital and Tier I leverage ratios as set forth in the table.

There are no conditions or events since that notification that management believes have changed the Bank’s category.

24

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The Bank’s actual and required capital amounts and ratios are as follows (table amounts in thousands):

							To Be Well Capitalized
							Under
							Prompt Corrective
				For Capital Adequacy			Action
	Actual			Purposes			Provisions
	Amount		Ratio	Amount		Ratio	Amount		Ratio
	(Dollars in thousands)
As of March 31, 2026
Total Capital
(to Risk-Weighted Assets)	$	23,663	19.5%	$	9,719	8.0%	$	12,149	10.0%
Tier 1 Capital
(to Risk-Weighted Assets)	$	22,797	18.8%	$	7,289	6.0%	$	9,719	8.0%
Common Equity Tier I Capital
(to Risk-Weighted Assets)	$	22,797	18.8%	$	5,467	4.5%	$	7,897	6.5%
Tier I Capital
(to Average Total Assets)	$	22,797	13.0%	$	7,039	4.0%	$	8,798	5.0%
As of September 30, 2025
Total Capital
(to Risk-Weighted Assets)	$	23,037	17.8%	$	10,342	8.0%	$	12,928	10.0%
Tier 1 Capital
(to Risk-Weighted Assets)	$	22,072	17.1%	$	7,757	6.0%	$	10,342	8.0%
Common Equity Tier I Capital
(to Risk-Weighted Assets)	$	22,072	17.1%	$	5,817	4.5%	$	8,403	6.5%
Tier I Capital
(to Average Total Assets)	$	22,072	12.5%	$	7,047	4.0%	$	8,808	5.0%

Note 5:    Disclosures about Fair Value of Assets and Liabilities

Fair value is the exchange price that would be received to sell an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value:

Level 1Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3Significant unobservable inputs that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

25

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Recurring Measurements

The following table presents the fair value measurements of assets recognized in the accompanying consolidated balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at March 31, 2026 and September 30, 2025:

			Fair Value Measurements Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for		Observable		Unobservable
	Fair		Identical Assets		Inputs		Inputs
	Value		(Level 1)		(Level 2)		(Level 3)
March 31, 2026
U.S. Government agencies	$	1,112,727	$	—	$	1,112,727	$	—
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,501,574		—		3,501,574		—
State and political subdivisions		5,111,738		—		5,111,738		—
September 30, 2025
U.S. Government agencies	$	2,487,550	$	—	$	2,487,550	$	—
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,822,878		—		3,822,878		—
State and political subdivisions		3,345,686		—		3,345,686		—

Following is a description of the valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. There are no liabilities measured at fair value on a recurring basis. There have been no significant changes in the valuation techniques during the three months ended March 31, 2026 and the year ended September 30, 2025.

Debt Securities Available-for-Sale

Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independently sourced market parameters, including, but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. In certain cases where Level 1 or Level 2 are not available, securities are classified within Level 3 of the hierarchy. The Bank had no Level 3 securities.

Nonrecurring Measurements

The Company had no assets or liabilities measured at fair value on a nonrecurring basis at March 31, 2026 and September 30, 2025.

26

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The estimated fair values of the Company’s financial instruments not carried at fair value on the concolidated balance sheets are as follows:

	Carrying		Fair		Fair Value Measurements Using
	Value		Value		Level 1		Level 2		Level 3
March 31, 2026
Financial assets:
Cash and cash equivalents	$	5,951,619	$	5,951,619	$	5,951,619	$	—	$	—
Interest-bearing time deposits		100,000		100,000		100,000		—		—
Held-to-maturity debt securities		60,210		59,600		—		59,600		—
Loans held for sale		6,146,205		6,618,000		—		—		6,618,000
Loans, net		141,845,228		135,597,000		—		—		135,597,000
FHLB Stock		921,500		921,500		—		921,500		—
Bank owned life insurance		1,900,697		1,900,697		1,900,697		—		—
Accrued interest receivable		639,336		639,336		639,336		—		—
Financial liabilities:
Deposits		146,554,265		146,653,872		98,543,872		—		48,110,000
FHLB advances		1,000,000		1,000,000		—		1,000,000		—
Accrued interest payable		349,560		349,560		349,560		—		—
September 30, 2025
Financial assets:
Cash and cash equivalents	$	5,363,187	$	5,363,187	$	5,363,187	$	—	$	—
Interest-bearing time deposits		100,000		100,000		100,000		—		—
Held-to-maturity debt securities		67,723		67,180		—		67,180		—
Loans held for sale		8,051,398		8,461,000		—		—		8,461,000
Loans, net		142,297,258		135,944,000		—		—		135,944,000
FHLB Stock		1,208,100		1,208,100		—		1,208,100		—
Bank owned life insurance		1,876,454		1,876,454		1,876,454		—		—
Accrued interest receivable		678,357		678,357		678,357		—		—
Financial liabilities:
Deposits		143,988,029		145,550,412		93,702,412		—		51,848,000
FHLB advances		6,000,000		5,999,999		—		5,999,999		—
Accrued interest payable		319,239		319,239		319,239		—		—

Limitations: Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Fair value estimates may not be realizable in an immediate settlement of the instrument. In some instances, there are no quoted market prices for the Company’s various financial instruments, in which case fair values may be based on estimates using present value or other valuation techniques, or based on judgments regarding future expected loss experience, current economic conditions, risk characteristic of the financial instruments, or other factors. Those techniques are significantly affected by the assumptions used, including the discount rate and estimate of future cash flows. Subsequent changes in assumptions could significantly affect the estimates.

Note 6:    Commitments and Credit Risks

Commitments to originate loans are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Since a portion of the line may expire without being

27

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

drawn upon, the total unused lines do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Management uses the same credit policies in granting lines of credit as it does for on-balance-sheet instruments. The allowance for credit losses for off balance sheet liabilities was $5,000 at March 31, 2026 and September 30, 2025, and was being held in other liabilities on the consolidated balance sheets.

Commitments outstanding were as follows:

	March 31,		September 30,
	2026		2025
Commitments to originate loans	$	4,863,197	$	2,445,371
Undisbursed balance of loans closed		6,989,053		7,154,955
Total	$	11,852,250	$	9,600,326

Note 7:    Earnings Per Share

Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the period. Unallocated common shares held by the Employee Stock Ownership Plan (“ESOP”) are not included in the weighted-average number of common shares outstanding for purposes of calculating basic earnings per common share until they are committed to be released.

The following table sets forth the computation of basic and diluted earnings per share:

	Three Months Ended		Six Months Ended
	March 31,		March 31,
	2026	2025	2026	2025
Net income	$ 272,139	$ 35,367	$ 443,409	$ 311,675
Weighted-average common shares outstanding, gross	1,020,656	1,018,575	1,023,399	1,020,797
Less unallocated ESOP shares	(65,470)	(70,926)	(68,213)	(73,654)
Weighted-average common shares outstanding	955,186	947,649	955,186	947,143
Basic earnings per share	$ 0.28	$ 0.04	$ 0.45	$ 0.33
Weighted-average common shares outstanding	955,186	947,649	955,186	947,143
Diluted effect of share based compensation	18,656	-	20,552	-
Weighted-average common shares outstanding - Diluted	973,842	947,649	975,738	947,143
Diluted earnings per share	$ 0.28	$ 0.04	$ 0.45	$ 0.33

28

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

Note 8:    Employee Stock Ownership Plan (ESOP)

In connection with the Conversion in July 2023, the Company established a leveraged ESOP for eligible employees of the Bank. The ESOP trust purchased 81,838 shares of Company common stock at the initial public offering price of $10.00 per share financed by the 15-year term loan with the Company. The interest rate of the loan is 8.50% and the maturity date is December 31, 2037. The loan is secured by shares purchased with the loan proceeds and will be repaid by the ESOP with funds from the Bank’s discretionary contributions to the ESOP. When the loan payments are made, ESOP shares are allocated to the participants based on relative compensation. The Bank recognizes expense based on the average fair value of the shares to be allocated to the ESOP participants.

Activity in the ESOP for the six months ended March 31, 2026 and 2025 is as follows:

	For the Six Months Ended
	March 31,
	2026	2025
Shares committed to be released to participants	—	—
Shares allocated to participants	16,368	10,912
Unreleased shares	65,470	70,926
ESOP shares at end of plan year	81,838	81,838
Fair value of unreleased shares	$ 1,096,623	$ 992,964

Note 9:    Share Based Compensation Arrangements

In February 2025, the Company’s shareholders approved the Mercer Bancorp, Inc. 2025 Equity Incentive Plan (the “2025 Plan”). The 2025 Plan authorized the issuance or delivery to participants of up to 143,215 shares of the Company’s common stock pursuant to the grants of restricted stock awards, restricted stock unit awards, incentive stock options and non-qualified stock options. Of this number, the maximum number of shares of Company common stock that may be issued under the 2025 Plan pursuant to the exercise of stock options is 102,297 shares and the maximum number of shares of Company common stock that may be issued as restricted stock awards or restricted stock units is 40,918. Shares subject to award under the 2025 Plan may be authorized but unissued shares or treasury shares.

A summary of the status of the Company’s unvested restricted shares as of March 31, 2026, and changes during the six month period then ended, is presented below:

		Weighted-average
		Grant Date
	Shares	Fair Value
Nonvested shares, October 1, 2025	31,504	$ 14.05
Awarded	-	-
Vested	(1,636)	14.20
Forfeited	-	-
Nonvested shares, March 31, 2026	29,868	$ 14.05

29

Mercer Bancorp, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

The following table summarizes stock option activity for the six month period ended March 31, 2026:

			Weighted-average
			Remaining	Aggregate
		Weighted-average	Contractual Term	Intrinsic
March 31, 2026	Shares	Exercise Price	(Years)	Value
Outstanding, beginning of period	81,634	$ 14.06	9.23	$ 117,786
Awarded				-
Exercised				-
Forfeited	-	-	-	-
Outstanding, end of period	81,634	$ 14.06	8.98	$ 219,829
Shares exercisable at March 31, 2026	4,091	$ 14.20

As of March 31, 2026, there was approximately $665,000 of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the 2025 Plan. That cost is expected to be recognized over a weighted-average period of 3.9 years. During the three and six months ended March 31, 2026, the Company recorded $22,000 and $44,000, respectively in share-based compensation expense related to restricted stock awards, which is included in salaries and employee benefits and director fees. During three and six months ended March 31, 2026, the Company recorded $20,000 and $39,000, respectively in share-based compensation expense related to stock options, which is included in salaries and employee benefits and director fees.

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Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations

General

Management’s discussion and analysis is intended to enhance your understanding of our financial condition and results of operations. The financial information in this section is derived from the accompanying financial statements. You should read the financial information in this section in conjunction with the business and financial information contained in this Quarterly Report on Form 10-Q and in the Company’s Annual Report on Form 10-K for the Fiscal Year Ended September 30, 2025 as filed with the SEC on December 19, 2025.

Cautionary Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements, which can be identified by the use of words such as “estimate,” “project,” “believe,” “intend,” “anticipate,” “assume,” “plan,” “seek,” “expect,” “will,” “may,” “should,” “indicate,” “would,” “believe,” “contemplate,” “continue,” “target” and words of similar meaning. These forward-looking statements include, but are not limited to:

● statements of our goals, intentions and expectations;

● statements regarding our business plans, prospects, growth and operating strategies;

● statements regarding the asset quality of our loan and investment portfolios; and

● estimates of our risks and future costs and benefits.

These forward-looking statements are based on our current beliefs and expectations and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control. In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change. We are under no duty to and do not take any obligation to update any forward-looking statements after the date of this prospectus.

The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations expressed in the forward-looking statements:

● general economic conditions, either nationally or in our market area, which are worse than expected, including the effects of inflation and monetary and fiscal policy;

● conditions affecting our local agricultural industry, such as adverse weather conditions and the impact of government regulations, including changes in price supports, tariffs on agricultural products, trade agreements, subsidies and environmental regulations, any of which may affect the ability of our agricultural customers to repay their loans and lead to reduced consumer spending, lower economic growth, and decreased demand for our products;

● changes in the interest rate environment that affect our margins and yields, the fair value of our financial instruments, our level of loan originations, or the level of defaults, losses and prepayments within our loan portfolio;

● adverse changes in the securities markets;

● changes in the level and direction of loan delinquencies and write-offs and changes in estimates of the adequacy of the allowance for credit losses;

● our ability to manage market risk, credit risk and operational risk;

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● our ability to access cost-effective funding;

● changes in liquidity, including the amount and composition of our deposits, including the percentage of uninsured deposits in our portfolio;

● fluctuations in real estate values and in the conditions of the residential real estate, commercial real estate, and agricultural real estate markets;

● demand for loans and deposits in our market area;

● our ability to implement and change our business strategies, including our ability to introduce new products and services, enter new markets and capitize on growth opportunities, and successfully integrate any acquired assets, liabilities, customers, systems and personnel;

● competition among depository and other financial institutions;

● changes in laws or government regulations or policies affecting financial institutions, including changes in regulatory fees, capital requirements and insurance premiums;

● changes in tax laws and the effects of tariffs, trade restrictions and retaliatory responses;

● changes in the quality or composition of our loan or investment portfolios;

● technological changes that may be more difficult or expensive than expected;

● the inability of third-party providers to perform as expected;

● a failure or breach of our operational or information security systems or infrastructure, including cyberattacks;

● our ability to enter new markets successfully and capitalize on growth opportunities;

● changes in consumer spending, borrowing and savings habits;

● changes in accounting policies and practices, as may be adopted by the bank regulatory agencies, the Financial Accounting Standards Board, the Securities and Exchange Commission or the Public Company Accounting Oversight Board;

● our compensation expense associated with equity allocated or awarded to our employees;

● our ability to retain key employees; and

● changes in the financial condition, results of operations or future prospects of issuers of securities that we own.

Accordingly, you should not place undue reliance on forward-looking statements.

Critical Accounting Policies

The discussion and analysis of the financial condition and results of operations are based on our consolidated financial statements, which are prepared in conformity with generally accepted accounting principles used in the United States of America. The preparation of these financial statements requires management to make estimates and

32

assumptions affecting the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of income and expenses. We consider the accounting policies discussed below to be critical accounting policies. The estimates and assumptions that we use are based on historical experience and various other factors and are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions, resulting in a change that could have a material impact on the carrying value of our assets and liabilities and our results of operations.

The Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”) contains provisions that, among other things, reduce certain reporting requirements for qualifying public companies. As an “emerging growth company” we may delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. We intend to take advantage of the benefits of this extended transition period. Accordingly, our financial statements may not be comparable to companies that comply with such new or revised accounting standards.

The following represent our critical accounting policies:

Allowance for Credit Losses. The allowance for credit losses is the estimated amount considered necessary to cover inherent, but unconfirmed, credit losses in the loan portfolio at the consolidated balance sheets date. The allowance is established through the provision for credit losses which is charged against income. In determining the allowance for credit losses, management makes significant estimates and has identified this policy as one of our most critical accounting policies.

Management performs a quarterly evaluation of the allowance for credit losses on loans and unfunded commitments. Consideration is given to a variety of factors in establishing this estimate including, but not limited to, current economic conditions, delinquency statistics, geographic and industry concentrations, the adequacy of the underlying collateral, the financial strength of the borrower, results of internal loan reviews and other relevant factors. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant change.

The allowance for credit losses is evaluated following the accounting guidance in Accounting Standards Update (ASU) No. 2016-13 Financial Instruments – Credit Losses (Topic 326). ASC 326 sets forth the current expected credit loss (CECL) methodology that reflects expected credit losses over the lives of the credit instruments and requires consideration of a broader range of information to estimate credit losses. ASC 326 requires an estimate of all expected credit losses for loans based on historical experience, current conditions, and reasonable and supportable forecasts.

Actual loan losses may be significantly more than the allowances we have established which could result in a material negative effect on our financial results.

Comparison of Financial Condition at March 31, 2026 and September 30, 2025

Total Assets. Total assets were $173.9 million at March 31, 2026, a decrease of $2.2 million, or 1.3%, from September 30, 2025. The decrease was due primarily to decreases in loans held for sale of $1.9 million, loans of $452,000, Federal Home Loan Bank stock of $287,000, and other assets of $110,000, which were partially offset by increases in cash and cash equivalents of $588,000.

Cash and Cash Equivalents. Cash and cash equivalents increased by $588,000, or 11.0%, to $6.0 million at March 31, 2026 from $5.4 million at September 30, 2025. The increase was due primarily to the decrease in loans, and an increase in deposits, partially offset by the paying down of $5.0 million in Federal Home Loan Bank advances, during the three months ended March 31, 2026.

Debt Securities. Debt securities available for sale and held to maturity increased $62,000 to $9.8 million at March 31, 2026 compared to September 30, 2025. During the six months ended March 31, 2026, there were $2.3 million in securities purchases, and $2.1 million in sales, which resulted in a $12,088 loss. There were repayments or maturities of $302,000, while the fair value of available for sale securities increased by $142,000 during the six months ended March 31, 2026.

33

The yield on debt securities was 3.37% for the six months ended March 31, 2026, compared to 3.03% for the six months ended March 31, 2025, reflecting the increases in the overall interest rate environment.

Loans Held for Sale. Loans held for sale decreased by $1.9 million, or 23.7%, to $6.1 million at March 31, 2026 compared to September 30, 2025. The decrease in loans held for sale was primarily due to paydowns of those loans. During the six months ended March 31, 2026, no new auto loans were originated for sale and there were $175,000 in mortgage loans originated for sale. No sales of auto loans occurred during the six months ended March 31, 2026, and $175,000 in sales of mortgage loans occurred during the six months ended March 31, 2026.

Net Loans. Net loans decreased by $452,000, or 0.3%, to $141.8 million at March 31, 2026 from $142.3 million at September 30, 2025. During the six months ended March 31, 2026, residential real estate loans increased $9.1 million, or 11.5%, to $87.9 million at March 31, 2026, from $78.8 million at September 30, 2025, construction and land loans increased $749,000, or 17.6%, to $5.0 million at March 31, 2026, from $4.3 million at September 30, 2025, consumer loans decreased $692,000, or 13.6%, to $4.4 million at March 31, 2026 compared to September 30, 2025, and agricultural real estate loans decreased $8.8 million, or 19.1%, to a total of $37.4 million at March 31, 2026.

The Bank operates amid strong competition for one- to four-family residential mortgage loans and agricultural mortgage loans in our market area.

The Bank’s strategy includes growing the loan portfolio, continuing to focus primarily on owner-occupied one-to-four family residential real estate loans, agricultural real estate loans and automobile loans.

Premises and Equipment. Premises and equipment decreased $74,000, or 1.4%, to $5.1 million during the three months ended March 31, 2026, compared to $5.2 million at September 30, 2025. The decrease was due primarily to depreciation expense of $226,000, partially offset by $152,000 in equipment purchases. The new equipment purchases were primarily related to computer networking, the new mobile branch and the core conversion.

Deposits. Deposits increased by $2.6 million, or 1.8%, to $146.6 million at March 31, 2026 from $144.0 million at September 30, 2025. Core deposits (which we define as savings accounts, money markets, other savings deposits and checking accounts) increased $4.8 million, or 5.2%, to $98.5 million at March 31, 2026 from $93.7 million at September 30, 2025. Certificates of deposit decreased $2.3 million, or 4.5%, to $48.0 million at March 31, 2026 from September 30, 2025. The decrease in certificates of deposit was due primarily to a decrease in brokered deposits of $2.5 million, partially offset by a $225,000 increase in customer certificates of deposit.

During the six months ended March 31, 2026, management continued its strategy of pursuing growth in demand accounts and other lower cost core deposits, in part by enhancing products and services offered and increased marketing. Management intends to continue its efforts to increase core deposits, with an emphasis on growth in consumer and business demand deposits.

Advances from the Federal Home Loan Bank. Advances from the Federal Home Loan Bank totaled $1.0 million at March 31, 2026, a decrease of $5.0 million, or 83.3%, from September 30, 2025. Advances were repaid primarily from proceeds from deposit growth and repayments on loans held for sale. Advances totaling $1.0 million are scheduled to mature within one year from March 31, 2026.

Shareholders’ Equity. Shareholders’ equity increased $477,000, or 1.9%, to $25.1 million at March 31, 2026, compared to September 30, 2025. The increase resulted primarily from net income of $443,000 for the six months ended March 31, 2026, a $122,000 increase to equity through a reduction in accumulated other comprehensive loss, and a decrease of $55,000 in shares acquired by ESOP, partially offset by a decrease in additional paid in capital of $143,000.

34

Average Balance Sheets

The following tables set forth average balance sheets, average yields and costs, and certain other information at the dates and for the periods indicated. No tax-equivalent yield adjustments have been made, as the effects would be immaterial. Average yields include the effect of net deferred fee income, discounts and premiums that are amortized or accreted to interest income or interest expense. Average balances are calculated using monthly average balances. Non-accrual loans are included in the computation of average balances only. Average loan balances include loans held for sale.

	For the Three Months Ended March 31,
	2026							2025
	Average							Average
	Outstanding					Average		Outstanding					Average
	Balance			Interest		Yield/Rate		Balance			Interest		Yield/Rate
	(Dollars in thousands)
Interest-earning assets:
Loans (1)	$	149,285		$	2,232	5.98	%	$	155,787		$	2,153	5.53	%
Taxable securities		4,870			42	3.45			7,208			57	3.16
Tax-exempt securities		5,334			44	3.30			3,695			28	3.03
Interest-earning deposits and other		4,630			55	4.75			5,914			71	4.80
Total interest-earning assets		164,119			2,373	5.78			172,604			2,309	5.35
Noninterest-earning assets		13,761							8,797
Allowance for credit losses		(893)							(967)
Total assets	$	176,987						$	180,434
Interest-bearing liabilities:
Interest-bearing demand deposits	$	33,401			2	0.02	%	$	30,488			2	0.03	%
Savings deposits		48,789			101	0.83			47,423			73	0.62
Certificates of deposit		51,859			439	3.39			41,315			337	3.26
Total interest-bearing deposits		134,049			542	1.62			119,226			412	1.38
Federal Home Loan Bank advances		1,000			10	4.00			20,750			247	4.76
Total interest-bearing liabilities		135,049			552	1.63			139,976			659	1.88
Noninterest-bearing demand deposits		14,068							15,398
Other noninterest-bearing liabilities		2,768							1,397
Total liabilities		151,885							156,771
Equity		25,102							23,663
Total liabilities and equity	$	176,987						$	180,434
Net interest income				$	1,821						$	1,650
Net interest rate spread (2)						4.14	%						3.47	%
Net interest-earning assets (3)	$	29,070						$	32,628
Net interest margin (4)						4.44	%						3.82	%
Average interest-earning assets to interest-bearing liabilities		121.53	%						123.31	%

(1) Net deferred fee income included in interest earned on loans totaled $26,000 and $19,000 for the three months ended March 31, 2026 and 2025, respectively.

(2) Net interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average rate of interest-bearing liabilities.

(3) Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.

(4) Net interest margin represents net interest income divided by average total interest-earning assets.

35

	For the Six Months Ended March 31,
	2026							2025
	Average							Average
	Outstanding					Average		Outstanding					Average
	Balance			Interest		Yield/Rate		Balance			Interest		Yield/Rate
	(Dollars in thousands)
Interest-earning assets:
Loans (1)	$	149,897		$	4,424	5.90	%	$	156,233		$	4,323	5.53	%
Taxable securities		5,237			85	3.25			7,612			115	3.02
Tax-exempt securities		5,104			84	3.29			3,657			56	3.06
Interest-earning deposits and other		4,692			119	5.07			5,754			148	5.14
Total interest-earning assets		164,930			4,712	5.71			173,256			4,642	5.36
Noninterest-earning assets		14,793							8,431
Allowance for credit losses		(920)							(931)
Total assets	$	178,803						$	180,756
Interest-bearing liabilities:
Interest-bearing demand deposits	$	32,761			4	0.02	%	$	30,276			4	0.03	%
Savings deposits		48,591			192	0.79			49,272			146	0.59
Certificates of deposit		52,065			897	3.45			41,221			725	3.52
Total interest-bearing deposits		133,417			1,093	1.64			120,769			875	1.45
Federal Home Loan Bank advances		2,231			53	4.75			21,571			523	4.85
Total interest-bearing liabilities		135,648			1,146	1.69			142,340			1,398	1.96
Noninterest-bearing demand deposits		14,111							15,259
Other noninterest-bearing liabilities		4,106							2,680
Total liabilities		153,865							160,279
Equity		24,938							20,477
Total liabilities and equity	$	178,803						$	180,756
Net interest income				$	3,566						$	3,244
Net interest rate spread (2)						4.02	%						3.40	%
Net interest-earning assets (3)	$	29,282						$	30,916
Net interest margin (4)						4.32	%						3.74	%
Average interest-earning assets to interest-bearing liabilities		121.59	%						121.72	%

________________________________________

(1) Net deferred fee income included in interest earned on loans totaled $55,000 and $38,000 for the six months ended March 31, 2026 and 2025,

respectively.

(2) Net interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average rate of

interest-bearing liabilities.

(3) Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.

(4) Net interest margin represents net interest income divided by average total interest-earning assets.

36

Rate/Volume Analysis

The following table presents the effects of changing rates and volumes on our net interest income for the periods indicated. The rate column shows the effects attributable to changes in rate (changes in rate multiplied by prior volume). The volume column shows the effects attributable to changes in volume (changes in volume multiplied by prior rate). The total column represents the sum of the prior columns. For purposes of this table, changes attributable to both rate and volume, which cannot be segregated, have been allocated proportionately based on the changes due to rate and the changes due to volume. There were no out-of-period items or adjustments required to be excluded from the table below.

	Three Months Ended
	March 31, 2026 vs. 2025
	Increase (Decrease)				Total
	Due to				Increase
	Volume		Rate		(Decrease)
	(In thousands)
Interest-earning assets:
Loans	$	(92)	$	171	$	79
Taxable securities		(20)		5		(15)
Tax exempt-securities		14		2		16
Interest-earning deposits and other		(16)		—		(16)
Total interest-earning assets		(114)		178		64
Interest-bearing liabilities:
Interest-bearing demand deposits		-		—		—
Savings deposits		2		26		28
Certificates of deposit		89		14		103
Total interest-bearing deposits		91		40		131
Federal Home Loan Bank Advances		(202)		(35)		(237)
Total interest-bearing liabilities		(111)		5		(106)
Change in net interest income	$	(3)	$	173	$	170

37

	Six Months Ended
	March 31, 2026 vs. 2025
	Increase (Decrease)				Total
	Due to				Increase
	Volume		Rate		(Decrease)
	(In thousands)
Interest-earning assets:
Loans	$	(180)		281	$	101
Taxable securities		(38)		8		(30)
Tax exempt-securities		24		4		28
Interest-earning deposits and other		(27)		(2)		(29)
Total interest-earning assets		(221)		291		70
Interest-bearing liabilities:
Interest-bearing demand deposits		—		—		—
Savings deposits		(2)		48		46
Certificates of deposit		186		(15)		171
Total interest-bearing deposits		184		33		217
Federal Home Loan Bank Advances		(460)		(10)		(470)
Total interest-bearing liabilities		(276)		23		(253)
Change in net interest income	$	55	$	268	$	323

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Comparison of Operating Results for the Three Months Ended March 31, 2026 and 2025

General. Net income for the three months ended March 31, 2026, was $272,000, an increase of $237,000, or 669.5%, compared to $35,000 for the three months ended March 31, 2025. The increase in net income was primarily due to a $170,000 increase in net interest income, a $118,000 decrease in noninterest expense, and a $13,000 decrease in provision for credit losses, partially offset by a $9,000 decease in noninterest income, and a $55,000 increase in income taxes.

Interest Income. Interest income increased $64,000, or 2.8%, to $2.4 million for the three months ended March 31, 2026 from the three months ended March 31, 2025. This increase was attributable to a $79,000, or 3.7%, increase in interest on loans receivable, and a $1,000, or 1.0%, increase in interest on debt securities, partially offset by a $16,000, or 22.0%, decrease in interest on interest-bearing deposits and other assets.

The average balance of loans during the three months ended March 31, 2026 decreased by $6.5

million, or 4.2%, from the balance for the three months ended March 31, 2025, while the average yield on loans increased by 45 basis points to 5.98% for the three months ended March 31, 2026 from 5.53% for the three months ended March 31, 2025. The increase in the average yield on loans reflects the recent increases in the overall interest rate environment. These increases in market interest rates have caused interest rates on the Bank’s adjustable-rate loans to adjust upward.

The average yield on debt securities increased by 25 basis points to 3.37% for the three months ended March 31, 2026, from 3.12% for the three months ended March 31, 2025, while the average balance of debt securities decreased $699,000 to $10.2 million for the three months ended March 31, 2026, from $10.9 million for the three months ended March 31, 2025.

Interest income on other interest-earning deposits, comprised primarily of certificates of deposit in other financial institutions, overnight deposits and stock in the Federal Home Loan Bank, decreased $16,000, or 22.0%, for the three months ended March 31, 2026, due primarily to a decrease in the average balance of $1.3 million, or 21.7%, and a decrease in the average yield of five basis points to 4.75% for the three months ended March 31, 2026, from 4.80% for the three months ended March 31, 2025.

Interest Expense. Total interest expense decreased $106,000, or 16.1%, to $552,000 for the three months ended March 31, 2026, from $658,000 for the three months ended March 31, 2025. Interest expense on deposits increased $130,000, or 31.6%, due primarily to an increase of 24 basis points in the average cost of deposits to 1.62% for the three months ended March 31, 2026, from 1.38% for the three months ended March 31, 2025, and an increase of $14.8 million, or 12.4%, in the average balance of interest-bearing deposits to $134.0 million for the three months ended March 31, 2026, from $119.2 million for the three months ended March 31, 2025.

Interest expense on borrowings decreased $237,000, or 96.0%, for the three months ended March 31, 2026, compared to the three months ended March 31, 2025. The decrease was due to a $19.8 million decrease in the average balance outstanding, to $1.0 million for the three months ended March 31, 2026, from $20.8 million for the three months ended March 31, 2025, and a 76 basis point decrease in the weighted-average rate, to 4.00% for the three months ended March 31, 2026, from 4.76% for the three months ended March 31, 2025.

Net Interest Income. Net interest income increased $170,000, or 10.3%, to $1.8 million for the three months ended March 31, 2026, compared to $1.7 million for the three months ended March 31, 2025. The increase reflected an increase in the net interest margin to 4.44% for the three months ended March 31, 2026, from 3.82% for the three months ended March 31, 2025. The net interest margin was impacted by a series of market interest rate decreases in the past several years. In 2025 there were three decreases in the federal funds rate, totaling 75 basis points, by the Federal Reserve Board.

39

Provision for Credit Losses. Based on an analysis of the loan portfolio and asset quality, management recorded $15,000 in provision for credit losses for the three-month period ended March 31, 2026 and $28,000 in provision for credit losses for the three month period ended March 31, 2025. The allowance for credit losses was $866,000 at March 31, 2026 and $960,000 at September 30, 2025 and represented 0.60% and 0.67% of total loans at March 31, 2026 and September 30, 2025, respectively. The determination of the adequacy of the allowance for credit losses included consideration of the levels of nonperforming loans, delinquent loans and net charge-offs of loans in both periods.

Total nonperforming loans were $234,000 at March 31, 2026, compared to $1.3 million at September 30, 2025. Classified loans totaled $189,000 at March 31, 2026, compared to $716,000 at September 30, 2025, and total loans past due 30 days and greater were $920,000 and $2.3 million at those respective dates. During the core processor conversion in 2025, some customers were not receiving their statements in a timely manner, which contributed to elevated delinquencies in 2025. As of September 30, 2025, $2.3 million of loans past due greater than 30 days were at 31 days. The send dates for the statements have been adjusted and delinquencies have declined. As a percentage of nonperforming loans, the allowance for credit losses was 370.4% at March 31, 2026 compared to 71.2% at September 30, 2025. Changes in residential real estate loans and agricultural loans were responsible for the decrease in non-performing, classified, and past due loans. As a percentage of nonperforming loans, the allowance for credit losses was 370.4% at March 31, 2026 compared to 71.2% at September 30, 2025.

The allowance for credit losses reflects the estimate management believes to be appropriate to cover incurred probable losses which were inherent in the loan portfolio at March 31, 2026 and 2025. While management believes the estimates and assumptions used in the determination of the adequacy of the allowance are reasonable, such estimates and assumptions could be proven incorrect in the future, and the actual amount of future provisions may exceed the amount of past provisions, and the increase in future provisions that may be required may adversely impact the Bank’s financial condition and results of operations. In addition, bank regulatory agencies periodically review the allowance for credit losses and may require an increase in the provision for credit losses or the recognition of loan charge-offs, based on judgments different than those of management.

Noninterest Income. Noninterest income totaled $133,000 for the three months ended March 31, 2026, a decrease of $9,000, or 6.30%, from $142,000 for the three months ended March 31, 2025. During the three months ended March 31, 2026, an $8,000, or 11.5%, decrease in service fees on deposits, a $4,000 decrease in gain on sale of loans, a $4,000 decrease in loan servicing fees, and a $4,000 decrease in bank owned life insurance, were partially offset by an increase of $12,000, or 44.7%, in late charges and fees on loans. The decrease in deposit service fee income was a result of reduced income from debit card processing as a result of our conversion to a new core processor. Loan origination fees were up $6,000 and late fees on loans were up $6,000.

Noninterest Expense. Noninterest expense decreased $118,000, or 6.9%, to $1.6 million for the three months ended March 31, 2026, compared to $1.7 million for the three months ended March 31, 2025. The decrease was due primarily to $216,000, or 58.9%, decrease in data processing, a $59,000, or 32.4%, decrease in professional services, $41,000, or 55.4%, decrease in deposit account services expense, a $27,000, or 15.3%, decrease in other expenses, and a $6,000, or 8.0%, decrease in loan expenses, which were partially offset by a $197,000, or 32.0%, increase in salaries and employee benefits, and a $33,000, or 24.5% increase in occupancy and equipment.

The decrease in data processing fees was primarily due to a $223,000 core conversion charge incurred during the 2025 period. The decrease in other expenses was primarily due to primarily to a $26,000 penalty incurred on the early redemption of brokered deposits in the 2025 period, which was done in order to reduce the effective cost of deposits. Professional fees decreased primarily due to expense related to the switch in auditing firms in the 2025 period. The decrease in deposit account services expense is that, since the conversion to the new core processor our income from debit card processing as well as the corresponding expenses have been lower. The increase in salaries and employee benefits was due primarily to merit increases, the new stock-based compensation based program, and increased staff for the new branch office and new mobile branch office. Occupancy and equipment increased primarily due to the opening of the new branch office and new mobile branch office in late 2025.

Income Taxes. Income taxes increased by $55,000, or 701.4%, to $63,000 for the three months ended March 31, 2026, compared to $8,000 for the three months ended March 31, 2025. The increase in the income tax provision was

40

due primarily to a $292,000, or 675.3%, increase in pretax income. The effective tax rates were 18.9% and 17.3% for the three months ended March 31, 2026 and 2025, respectively.

Comparison of Operating Results for the Six Months Ended March 31, 2026 and 2025

General. Net income for the six months ended March 31, 2026, was $443,000, an increase of $132,000, or 42.3%, compared to $312,000 for the six months ended March 31, 2025. The increase in net income was primarily due to a $324,000 increase in net interest income, and a $13,000 decrease in the provision for credit losses, which were partially offset by a $46,000 decrease in noninterest income, a $136,000 increase in noninterest expenses and a $24,000 increase in income taxes.

Interest Income. Interest income increased $70,000, or 1.5%, to $4.7 million for the six months ended March 31, 2026 from the six months ended March 31, 2025. This increase was attributable to a $101,000, or 2.3%, increase in interest on loans receivable, which was partially offset by a $29,000, or 19.6%, decrease in interest on interest-earning deposits and other assets, and a $2,000, or 0.9%, decrease in interest on debt securities.

The average balance of loans decreased by $6.3 million, or 4.1%, during the six months ended March 31, 2026, compared to the six months ended March 31, 2025, while the average yield on loans increased by 37 basis points to 5.90% for the three months ended March 31, 2026 from 5.53% for the three months ended March 31, 2025. The increase in the average yield on loans reflects the recent increases in the overall interest rate environment. These increases in interest rates in the economy have caused interest rates on the Bank’s adjustable-rate loans to adjust upward.

The average yield on debt securities increased by 24 basis points to 3.27% for the six months ended March 31, 2026, from 3.03% for the six months ended March 31, 2025, while the average balance of debt securities decreased $928,000 to $10.3 million for the six months ended March 31, 2026, from $11.3 million for the six months ended March 31, 2025.

Interest income on other interest-earning deposits, comprised primarily of certificates of deposit in other financial institutions, overnight deposits and stock in the Federal Home Loan Bank, decreased $29,000, or 19.6%, for the six months ended March 31, 2026, due primarily to a decrease in the average balance of $1.1 million, or 18.5%, and a decrease in the average yield of seven basis points to 5.07% for the six months ended March 31, 2026, from 5.14% for the six months ended March 31, 2025.

Interest Expense. Total interest expense decreased $254,000, or 18.1%, to $1.1 million for the six months ended March 31, 2026, from $1.4 million for the six months ended March 31, 2025. Interest expense on deposits increased $217,000, or 24.9%, due primarily to an increase of 19 basis points in the average cost of deposits to 1.64% for the six months ended March 31, 2026, from 1.45% for the six months ended March 31, 2025, and an increase of $12.6 million, or 10.5%, in the average balance of interest-bearing deposits to $133.4 million for the six months ended March 31, 2026, from $120.8 million for the six months ended March 31, 2025.

Interest expense on borrowings decreased $471,000, or 90.0%, for the six months ended March 31, 2026, compared to the six months ended March 31, 2025. The decrease was due to a $19.3 million decrease in the average balance outstanding, to $2.2 million for the six months ended March 31, 2026, from $21.6 million for the six months ended March 31, 2025, and a ten basis point decrease in the weighted-average rate, to 4.75% for the six months ended March 31, 2026, from 4.85% for the six months ended March 31, 2025.

Net Interest Income. Net interest income increased $324,000, or 10.0%, to $3.6 million for the six months ended March 31, 2026, compared to $3.2 million for the six months ended March 31, 2025. The net interest margin was 4.32% for the six months ended March 31, 2026, and 3.74% for the six months ended March 31, 2025. The net interest margin was impacted by three decreases in rates by the Federal Reserve Board in 2025 totaling 75 basis points.

Provision for Credit Losses. Based on an analysis of the loan portfolio and asset quality, management recorded a provision for credit losses of $15,000 for the six-month period ended March 31, 2026, a decrease from $28,000 for the

41

six months ended March 31, 2025. The allowance for credit losses was $866,000 at March 31, 2026 and $960,000 at September 30, 2025 and represented 0.60% and 0.67% of total loans at March 31, 2026 and September 30, 2025, respectively. The determination of the adequacy of the allowance for credit losses included consideration of the levels of nonperforming loans, delinquent loans and net charge-offs of loans in both periods.

Total nonperforming loans were $234,000 at March 31, 2026, compared to $1.3 million at September 30, 2025. Classified loans totaled $189,000 at March 31, 2026, compared to $716,000 at September 30, 2025, and total loans past due greater than 30 days were $920,000 and $2.3 million at those respective dates. During the core processor conversion in 2025, some customers were not receiving their statements in a timely manner, which contributed to elevated delinquencies in 2025. As of September 30, 2025, $2.3 million of loans past due greater than 30 days were at 31 days. The send dates for the statements have been adjusted and delinquencies have declined. As a percentage of nonperforming loans, the allowance for credit losses was 370.4% at March 31, 2026 compared to 71.2% at September 30, 2025.

The allowance for credit losses reflects the estimate management believes to be appropriate to cover incurred probable losses which were inherent in the loan portfolio at March 31, 2026 and 2025. While management believes the estimates and assumptions used in the determination of the adequacy of the allowance are reasonable, such estimates and assumptions could be proven incorrect in the future, and the actual amount of future provisions may exceed the amount of past provisions, and the increase in future provisions that may be required may adversely impact the Bank’s financial condition and results of operations. In addition, bank regulatory agencies periodically review the allowance for credit losses and may require an increase in the provision for credit losses or the recognition of loan charge-offs, based on judgments different than those of management.

Noninterest Income. Noninterest income totaled $248,000 for the six months ended March 31, 2026, a decrease of $46,000, or 15.6%, from $294,000 for the six months ended March 31, 2025. The decrease was due primarily to a $24,000, or 16.4%, decrease in service fees on deposits, a $12,000 increase in loss on the sale of investments, a decrease in gain on sale of loans of $9,000, or 75.1%, and a decrease of $7,000, or 31.9%, in loan servicing fees, partially offset by an increase in late charges and fees on loans of $16,000, or 26.2%.

Noninterest Expense. Noninterest expense increased $136,000, or 4.3%, to $3.3 million for the six months ended March 31, 2026, compared to $3.1 million for the six months ended March 31, 2025. The increase was due primarily to a $328,000, or 26.4%, increase in salaries and employee benefits, an $80,000, or 30.9%, increase in occupancy and equipment, partially offset by a $199,000, or 36.3%, decrease in data processing fees , and a $78,000, or 53.0%, decrease in deposit account services expense.

The increase in salaries and employee benefits was due primarily to merit increases, the new stock-based compensation based program, and increased staff for the new branch office and new mobile branch office. Occupancy and equipment increased primarily due to the opening of the new branch office and new mobile branch office. The decrease in data processing fees was primarily due to a $223,000 core conversion charge incurred during the 2025 period. The decrease in other expenses was primarily due to a $26,000 penalty incurred on the early redemption of brokered deposits in the 2025 period, which was done in order to reduce the effective cost of deposits. The reason for the decrease in deposit account services expense is that, since the conversion to the new core processor our income from debit card processing as well as the corresponding expenses have been lower.

Income Taxes. Income taxes increased by $24,000, or 30.9%, to $101,000 for the six months ended March 31, 2026, compared to $77,000 for the six months ended March 31, 2025. The increase in the income tax provision was due primarily to a $156,000, or 40.0%, increase in pretax income.The effective tax rates were 18.5% and 19.7% for the six months ended March 31, 2026 and 2025, respectively.

Liquidity and Capital Resources

Liquidity describes our ability to meet the financial obligations that arise in the ordinary course of business. Liquidity is primarily needed to meet the borrowing and deposit withdrawal requirements of our customers and to fund

42

current and planned expenditures. Our primary sources of funds are deposits, principal and interest payments on loans and securities, and proceeds from maturities of securities. We also have the ability to borrow from the Federal Home Loan Bank of Cincinnati. At March 31, 2026, we had $1.0 million of outstanding borrowings from the Federal Home Loan Bank of Cincinnati. At March 31, 2026, we had the capacity to borrow an additional $52.4 million from the Federal Home Loan Bank of Cincinnati. At March 31, 2026 and 2025, the Bank had a cash management line of credit agreement with the Federal Home Loan Bank providing for additional borrowing capacity of $11.0 million. The Bank had no borrowings drawn on this line at March 31, 2026, and March 31, 2025.

While maturities and scheduled amortization of loans and securities are predictable sources of funds, deposit flows and loan prepayments are greatly influenced by general interest rates, economic conditions, and competition. Our most liquid assets are cash and short-term investments. The levels of these assets are dependent on our operating, financing, lending, and investing activities during any given period.

Our cash flows are comprised of three primary classifications: cash flows from operating activities, cash flows from investing activities, and cash flows from financing activities. For further information, see the statements of cash flows contained in the financial statements beginning on page 5 of this Form 10-Q.

We are committed to maintaining a strong liquidity position. We monitor our liquidity position on a daily basis. We anticipate that we will have sufficient funds to meet our current funding commitments. Based on our deposit retention experience and current pricing strategy, we anticipate that a significant portion of maturing time deposits will be retained.

At March 31, 2026, Mercer Savings Bank exceeded all regulatory capital levels required to be considered “well capitalized.”  For further information, see Note 4 of the notes to the financial statements included as Part I, item 1 of this Quarterly Report on Form 10-Q.

Item 3.Quantitative and Qualitative Disclosures About Market Risk

Not applicable, as the Company is a smaller reporting company.

Item 4.Controls and Procedures

Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act) as of March 31, 2026. Based upon that evaluation, the principal executive officer and principal financial officer concluded that, as of March 31, 2026, the Company’s disclosure controls and procedures were effective.

Changes in Internal Controls Over Financial Reporting

During the quarter ended March 31, 2026, there have been no changes in the Company’s internal controls over financial reporting that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Part II – Other Information

Item 1. Legal Proceedings

The Company is periodically involved in legal proceedings arising in the ordinary course of business. In the opinion of management, the resolution of these legal proceedings is not expected to have a material effect on the Bank’s or the Company’s financial condition or results of operations.

43

Item 1A.Risk Factors

Not applicable, as the Company is a smaller reporting company.

Item 2.Unregistered Sales of Equity Securities and Use of Proceeds

Common Stock Repurchases. The following table presents information regarding shares of our common stock repurchased during the three months ended March 31, 2026.

			Total Number of	Maximum Number of
			Shares (or Units)	(Shares or Units)
	Total Number of	Weighted Average	Purchased as Part of a	that May Yet Be
	Shares (or Units)	Price Paid	Publicly Announced	Purchased Under the
Period	Purchased	per Share (or Unit)	Plans or Programs	Plans or Programs
January 1 to January 31, 2026	—	—	—	73,958
February 1 to February 28, 2026	10,000	$16.25	10,000	63,958
March 1 to March 31, 2026	4,468	$16.80	4,468	59,490

On December 18, 2024, the Company announced that it had adopted and received regulatory non-objection to a stock repurchase program. Pursuant to the program, the Company may repurchase up to 102,297 shares of its common stock, which represented approximately 10% of the Company’s outstanding common shares at the time of adoption. As of March 31, 2026, the Company had repurchased 42,807 shares for a total purchase price of $645,000. The repurchase program has no expiration date.

Item 3.Defaults Upon Senior Securities

None.

Item 4.Mine Safety Disclosures

Not applicable.

Item 5.Other Information

During the three months ended March 31, 2026 none of the Company’s directors or executive officers adopted or terminated any contract, instruction or written plan for the purchase or sale of the Company’s securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement,” as that term is used in SEC regulations.

44

Item 6.Exhibits

3.1	Articles of Incorporation of Mercer Bancorp, Inc. (incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-1 (file no. 333-270445), originally filed with the Securities and Exchange Commission on March 10, 2023)
3.2	Amended and Restated Bylaws of Mercer Bancorp, Inc. (incorporated by reference to Exhibit 3.2 to the Current Report on Form 8-K filed with the Securities and Exchange Commission on January 17, 2024)
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	The following materials for the quarter ended March 31, 2026, formatted in Inline XBRL (Extensible Business Reporting Language): (i) Balance Sheets, (ii) Statements of Income, (iii) Statements of Comprehensive Income (Loss), (iv) Statements of Changes in Equity, (v) Statements of Cash Flows, and (vi) Notes to Financial Statements
104	Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101)

45

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	MERCER BANCORP, INC.
Date: May 12, 2026	/s/Alvin B. Parmiter
	Alvin B. Parmiter
	President and Chief Executive Officer
Date: May 12, 2026	/s/Sherman E. Crum
	Sherman E. Crum
	Principal Financial Officer

46

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Alvin B. Parmiter, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Mercer Bancorp, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

c) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 12, 2026	/s/Alvin B. Parmiter
	Alvin B. Parmiter
	President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Sherman E. Crum, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Mercer Bancorp, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

c) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 12, 2026	/s/Sherman E. Crum
	Sherman E. Crum
	Principal Financial Officer

EX-32

Exhibit 32

Certification of Chief Executive Officer and Chief Financial Officer

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Alvin B. Parmiter, President and Chief Executive Officer of Mercer Bancorp, Inc. (the “Company”), and Sherman E. Crum, Principal Financial Officer of the Company, each certify in their capacity as an officer of the Company that they have reviewed the Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 (the “Report”) and that to the best of their knowledge:

1. the Report fully complies with the requirements of Sections 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 12, 2026	/s/Alvin B. Parmiter
	Alvin B. Parmiter
	President and Chief Executive Officer
Date: May 12, 2026	/s/Sherman E. Crum
	Sherman E. Crum
	Principal Financial Officer

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

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Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2026	May 11, 2026
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2026
Document Transition Report	false
Securities Act File Number	000-56575
Entity Registrant Name	Mercer Bancorp, Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	92-3452469
Entity Address, Address Line One	1100 Irmscher Blvd
Entity Address, City or Town	Celina
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	45822
City Area Code	419
Local Phone Number	586-5158
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,013,303
Entity Central Index Key	0001967306
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q2
Amendment Flag	false

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Consolidated Balance Sheets - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Assets
Cash and due from banks	$ 2,600,454	$ 2,576,165
Interest-bearing deposits in other financial institutions	2,229,165	713,022
Federal funds sold	1,122,000	2,074,000
Cash and cash equivalents	5,951,619	5,363,187
Interest-bearing time deposits	100,000	100,000
Available-for-sale securities, at fair value	9,726,039	9,656,114
Held-to-maturity securities, at amortized cost	60,210	67,723
Loans held for sale	6,146,205	8,051,398
Loans receivable	142,711,469	143,257,565
Allowance for credit losses	(866,241)	(960,307)
Net loans	141,845,228	142,297,258
Premises and equipment	5,078,211	5,151,721
Federal Home Loan Bank stock	921,500	1,208,100
Bank owned life insurance	1,900,697	1,876,454
Accrued interest receivable	639,336	678,357
Federal Home Loan Bank lender risk account	421,737	434,749
Deferred federal income taxes	201,657	233,548
Other assets	943,294	1,053,048
Total assets	173,935,733	176,171,657
Deposits
Demand - non interest bearing	14,070,495	14,720,941
Demand - interest bearing	50,025,078	43,738,535
Savings and money market	34,448,299	35,242,936
Time	48,010,393	50,285,617
Total deposits	146,554,265	143,988,029
Advances from the Federal Home Loan Bank	1,000,000	6,000,000
Directors plan liability	349,560	370,729
Accrued interest payable and other liabilities	931,811	1,189,561
Total liabilities	148,835,636	151,548,319
Commitments and Contingencies
Shareholders' Equity
Preferred stock - authorized 1,000,000 shares of $0.01 par value, none issued	0	0
Common stock - authorized 9,000,000 shares of $0.01 par value, issued and outstanding 1,026,135 and 1,027,477 shares at December 31, 2025 and September 30, 2025, respectively	9,818	9,959
Additional paid-in capital	8,225,708	8,368,876
Shares acquired by ESOP	(654,367)	(709,269)
Shares issued to irrevocable trust	96,360	96,360
Shares held in irrevocable trust	(96,360)	(96,360)
Retained earnings	17,787,027	17,343,618
Accumulated other comprehensive loss	(268,089)	(389,846)
Total shareholders' equity	25,100,097	24,623,338
Total liabilities and shareholders' equity	$ 173,935,733	$ 176,171,657

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Consolidated Balance Sheets (Parenthetical) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Statement of Financial Position [Abstract]
Held-to-maturity securities, net of allowance for credit losses	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock par value	$ 0.01	$ 0.01
Preferred stock, shares issued	0	0
Common stock, shares authorized	9,000,000	9,000,000
Common Stock, par value	$ 0.01
Common stock, shares, issued	1,013,303	1,027,477
Common stock, shares, outstanding	1,013,303	1,027,477

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Consolidated Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Interest Income
Loans	$ 2,231,741	$ 2,153,054	$ 4,424,154	$ 4,323,346
Investment securities	85,631	84,748	169,167	170,715
Interest-bearing deposits and other	55,314	70,953	119,271	148,351
Total interest income	2,372,686	2,308,755	4,712,592	4,642,412
Interest Expense
Deposits	541,853	411,608	1,092,240	874,794
Federal Home Loan Bank advances	10,307	246,540	52,540	523,726
Total interest expense	552,160	658,148	1,144,780	1,398,520
Net Interest Income	1,820,526	1,650,607	3,567,812	3,243,892
Provision for Credit Losses	15,000	28,000	15,000	28,000
Net Interest Income After Provision for Credit Losses	1,805,526	1,622,607	3,552,812	3,215,892
Noninterest Income
Service fees on deposits	60,905	68,797	123,820	148,151
Late charges and fees on loans	39,016	26,960	79,026	62,613
Gain on sale of loans	3,037	6,984	3,037	12,152
Loan servicing fees	6,951	11,311	14,237	20,910
Loss on sale of investments	0	0	(12,088)	0
Gain on sale of foreclosed assets	6,833	6,982	7,361	6,982
Bank owned life insurance	12,037	16,335	24,243	32,905
Other income	4,467	4,828	8,384	10,192
Total noninterest income	133,246	142,197	248,020	293,905
Noninterest Expense
Salaries and employee benefits	810,793	614,051	1,569,892	1,241,579
Directors fees	22,800	19,200	45,600	38,400
Occupancy and equipment	168,512	135,302	337,483	257,743
Data processing fees	151,304	367,797	348,784	547,375
Franchise taxes	37,812	40,260	71,852	72,037
FDIC insurance premiums	19,405	20,306	38,241	41,330
Professional services	122,788	181,608	269,109	286,178
Deposit account services expense	32,682	73,268	69,157	147,041
Advertising	19,103	18,810	47,261	42,805
Loan expenses	70,625	76,737	131,033	158,281
Other	147,504	174,199	328,206	288,334
Total noninterest expense	1,603,328	1,721,538	3,256,618	3,121,103
Income before income taxes	335,444	43,266	544,214	388,694
Provision for income taxes	63,305	7,899	100,805	77,019
Net Income	$ 272,139	$ 35,367	$ 443,409	$ 311,675
Earnings per share - basic	$ 0.28	$ 0.04	$ 0.45	$ 0.33
Earnings per share - diluted	$ 0.28	$ 0.04	$ 0.45	$ 0.33

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Consolidated Statements of Comprehensive Income - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 272,139	$ 35,367	$ 443,409	$ 311,675
Other comprehensive (loss) income:
Net unrealized (losses) gains on available-for-sale securities	38,377	9,725	142,034	(247,831)
Reclassification adjustment for realized loss on sales of securities	0	0	12,088	0
Tax benefit (expense)	(8,060)	(2,043)	(32,365)	52,044
Other comprehensive (loss) income	30,317	7,682	121,757	(195,787)
Comprehensive income	$ 302,456	$ 43,049	$ 565,166	$ 115,888

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Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Shares Acquired by ESOP	Shares Issued to Irrevocable Trust	Shares Held to Irrevocable Trust	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Beginning balance at Sep. 30, 2024	$ 10,229	$ 8,658,653	$ (763,820)	$ 96,360	$ (96,360)	$ 16,371,313	$ (323,342)	$ 23,953,033
Net income						311,675		311,675
Issuance of restricted stock	83	(83)
ESOP shares allocated to participants		13,987	54,551					68,538
Repurchase of common stock	(170)	(239,957)						(240,127)
Other comprehensive (loss) income							(195,787)	(195,787)
Ending balance at Mar. 31, 2025	10,142	8,432,600	(709,269)	96,360	(96,360)	16,682,988	(519,129)	23,897,332
Beginning balance at Dec. 31, 2024	10,229	8,672,640	(709,269)	96,360	(96,360)	16,647,621	(526,811)	24,094,410
Net income						35,367		35,367
Issuance of restricted stock	83	(83)
Repurchase of common stock	(170)	(239,957)						(240,127)
Other comprehensive (loss) income							7,682	7,682
Ending balance at Mar. 31, 2025	10,142	8,432,600	(709,269)	96,360	(96,360)	16,682,988	(519,129)	23,897,332
Beginning balance at Sep. 30, 2025	$ 9,959	8,368,876	(709,269)	96,360	(96,360)	17,343,618	(389,846)	24,623,338
Net income						443,409		443,409
Share based compensation		60,317						60,333
Share based compensation, shares	16
ESOP shares allocated to participants		31,740	54,560					86,300
Repurchase of common stock	$ (157)	(235,225)	342					(235,040)
Other comprehensive (loss) income							121,757	121,757
Ending balance at Mar. 31, 2026	9,818	8,225,708	(654,367)	96,360	(96,360)	17,787,027	(268,089)	25,100,097
Beginning balance at Dec. 31, 2025	$ 9,946	8,421,360	(654,367)	96,360	(96,360)	17,514,888	(298,406)	24,993,421
Net income						272,139		272,139
Share based compensation		18,534						18,550
Share based compensation, shares	16
Repurchase of common stock	$ (144)	(214,186)						(214,330)
Other comprehensive (loss) income							30,317	30,317
Ending balance at Mar. 31, 2026	$ 9,818	$ 8,225,708	$ (654,367)	$ 96,360	$ (96,360)	$ 17,787,027	$ (268,089)	$ 25,100,097

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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - shares	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Statement of Stockholders' Equity [Abstract]
Repurchase of common stock, shares	14,468	16,997	15,810	26,397

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Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating Activities
Net income	$ 443,409	$ 311,675
Adjustments to reconcile net income to net cash provided (used ) in operating activities:
Depreciation and amortization	231,801	87,653
Amortization of premiums and discounts	(2,191)	6,356
Amortization of deferred loan fees	(54,626)	(19,041)
Deferred income taxes	(474)	23,360
Provision for credit losses	15,000	28,000
ESOP compensation expense	86,300	68,538
Gain on sale of loans	(3,037)	(12,152)
Proceeds from sales of loans	175,721	520,183
Loans originated for sale	(175,000)	(665,448)
Loss on sale of investments	12,088	0
Gain on sale of foreclosed assets	(7,361)	(6,982)
Increase in cash surrender value of bank-owned life insurance	(24,243)	(23,404)
Share based compensation	60,333	0
Changes in:
Accrued interest receivable	39,021	8,491
Other assets	193,681	(204,474)
Other liabilities	(268,505)	(19,640)
Net cash provided by (used in) operating activities	721,917	103,115
Investing Activities
Purchases of available-for-sale securities	(2,266,933)	(277,432)
Proceeds from sales of available-for-sale securites	2,058,697	0
Proceeds from calls, maturities and paydowns of available-for-sale securities	282,918	1,309,964
Principal repayments on securities held-to-maturity	7,130	14,452
Net change in loans	2,243,107	1,769,425
Purchase of premises and equipment	(152,455)	(1,073,812)
Purchases of FHLB stock	0	(80,100)
Proceeds from redemption of FHLB stock	286,600	0
Proceeds from sale of foreclosed assets	76,255	54,300
Net cash provided (used in) investing activities	2,535,319	1,716,797
Financing Activities
Net increase (decrease) in deposits	2,566,236	4,232,288
Proceeds from FHLB advances - short term	0	41,000,000
Repayment of FHLB advances - short term	(5,000,000)	(46,000,000)
Repurchase of common stock	(235,040)	(240,127)
Net used in financing activities	(2,668,804)	(1,007,839)
(Decrease) Increase in Cash and Cash Equivalents	588,432	812,073
Cash and Cash Equivalents, Beginning of Period	5,363,187	5,897,596
Cash and Cash Equivalents, End of Period	5,951,619	6,709,669
Supplemental Disclosure of Cash Flow Information
Interest on deposits and borrowings	1,114,603	1,312,038
Income taxes	0	300,000
Supplemental Disclosure of Noncash Investing Activities
Transfers from loans to foreclosed assets	$ 156,059	$ 47,318

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Nature of Operations and Summary of Significant Accounting Policies

6 Months Ended

Mar. 31, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Operations and Summary of Significant Accounting Policies

Note 1:    Nature of Operations and Summary of Significant Accounting Policies

Inclusion of Unaudited Information

The financial information included herein as of March 31, 2026, and for the interim three and six months periods ended March 31, 2026 and 2025 is unaudited. However, in management’s opinion, the information reflects all normal, recurring adjustments that are necessary for a fair presentation. The results shown for the three and six months ended March 31, 2026, are not necessarily indicative of the results to be obtained for the fiscal year ending September 30, 2026.

Nature of Operations

Mercer Bancorp, Inc. (“Mercer Bancorp” or the “Company”) is a Maryland corporation incorporated on March 7, 2023, to serve as the bank holding company for Mercer Savings Bank (“Mercer Savings” or the “Bank”) in connection with the Bank’s conversion from the mutual form of organization to the stock form of organization (the “Conversion”). The Conversion was completed on July 26, 2023. In connection with the Conversion, Mercer Bancorp acquired 100% ownership of Mercer Savings and the Company offered and sold 972,970 shares of its common stock at $10.00 per share, for gross offering proceeds of $9,729,700. The Company also contributed 50,000 shares of common stock and $100,000 in cash to Mercer Savings Charitable Foundation, Inc.

Mercer Savings is an Ohio chartered stock bank engaged primarily in the business of providing a variety of deposit and lending services to individual customers primarily in Mercer and Darke counties in Ohio, and Adams and Jay counties in Indiana. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential and commercial mortgage, agricultural, commercial, home equity lines of credit and installment loans, and indirect automobile loans. Its operations are conducted through its four office locations in Celina, Ft. Recovery and Greenville, Ohio, one office location in Berne, Indiana, and a mobile branch serving Geneva and Decatur, Indiana. The Bank faces competition from other financial institutions and is subject to the regulation of certain federal and state banking agencies and undergoes periodic examinations by those regulatory authorities.

Principles of Consolidation

The consolidated financial statements as of and for the three and six months ended March 31, 2026, include the accounts of the Company and the Bank, its wholly-owned subsidiary. All intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, valuation of mortgage servicing rights and deferred tax assets and fair values of financial instruments.

Debt Securities

Debt securities held by the Company generally are classified and recorded in the financial statements as follows:

Classified as	Description	Recorded at
Held to maturity (“HTM”)	Certain debt securities that management has the positive intent and ability to hold to maturity	Amortized cost, net of allowance for credit losses
Trading	Securities that are bought and held principally for the purpose of selling in the near term and, therefore, held for only a short period of time	Fair value, with changes in fair value included in earnings
Available for sale (“AFS”)	Securities not classified as HTM or trading	Fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income (loss)

Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities, identified as the call date as to premiums and maturity date as to discounts. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.

Loans Held for Sale

Mortgage and indirect auto loans originated and intended for sale in the secondary market are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to noninterest income. Gains and losses on loan sales are recorded in noninterest income, and direct loan origination costs and fees are deferred at origination of the loan and are recognized in noninterest income upon sale of the loan.

Lender Risk Account (LRA)

The Federal Home Loan Bank (FHLB) requires institutions participating in its mortgage loan sales program to place a portion of the sale proceeds in a lender risk account (LRA). The LRA is maintained to offset any credit losses associated with loans sold to the FHLB by the participating institution as well as losses experienced by the overall loan pool should an individual institution’s LRA be fully exhausted. The loan sale agreements provide for the FHLB to begin distributions of the LRA funds to the Company after loan pools have had five years of payment history. After five years, the required LRA balance is recalculated at least annually and excess amounts are returned to the participating institutions.

Loans

Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances, adjusted for unearned income, charge-offs, the allowance for credit losses and any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.

For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan. For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition

of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For individually evaluated loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.

The Company charges-off loans, or portions thereof, when the Company reasonably determines the amount of the loss. The Bank adheres to delinquency thresholds established by applicable regulatory guidance to determine the charge-off timeframe for these loans. Loans at these delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.

For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

When cash payments are received on individually evaluated loans, the Company records the payment as interest income unless collection of the remaining recorded principal amount is doubtful, at which time payments are used to reduce the principal balance of the loan. Loans to borrowers experiencing financial difficulties that have been modified recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least nine months.

Allowance for Credit Losses

Debt Securities Available-for-Sale

For available for sale debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through income.

For debt securities available-for-sale that do not meet the above criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, the Company considers the extent to which fair value is less than amortized cost and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of the cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income, net of tax. The Company elected the practical expedient of zero loss estimates for securities issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on available-for-sale debt securities at March 31, 2026 and September 30, 2025.

Accrued interest receivable on available-for-sale debt securities totaled $76,355 and $86,443 at March 31, 2026 and September 30, 2025, respectively, and is included within accrued interest receivable on the consolidated balance sheets. This amount is excluded from the estimate of expected credit losses. Available-for-sale debt securities are typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest. When available-for-sale debt securities are placed on nonaccrual status, unpaid interest credited to income is reversed.

Debt Securities Held-to-Maturity

The Company measures expected credit losses on held-to-maturity debt securities, which are comprised of U.S. government sponsored enterprise mortgage-back securities and residential mortgage-backed securities. The Company’s residential mortgage-backed security holdings are issued by U.S. government entities and agencies and are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on held-to-maturity debt securities at March 31, 2026 and September 30, 2025.

Accrued interest receivable on held-to-maturity debt securities totaled $289 and $334 at March 31, 2026 and September 30, 2025, respectively, and is included within accrued interest receivable on the consolidated balance sheets. This amount is excluded from the estimate of expected credit losses. Held-to-maturity debt securities are typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest. When held-to-maturity debt securities are placed on nonaccrual status, unpaid interest credited to income is reversed.

Loans

The allowance for credit losses (ACL) is a valuation allowance that is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on the loans. Loan losses are charged against the allowance when management believes the collectibility of a loan balance is doubtful. Subsequent recoveries, if any, are credited to the allowance. Management’s determination of the adequacy of the ACL is based on the assessment of the expected credit losses on loans over the expected life of the loan. The ACL is increased by provision expense and decreased by charge-offs, net of recoveries of amounts previously charged off and expected to be charged off. The Company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses.

Management estimates the ACL balance using relevant available information from both internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience of a defined peer group, by affiliate, paired with economic forecasts provide the basis for the quantitatively modeled estimates of expected credit losses. The Company adjusts its quantitative model, as necessary, to reflect conditions not already considered by the quantitative model. These adjustments are commonly known as the qualitative factors.

The ACL is measured on a collective (pool) basis when similar risk characteristics exist. The Company uses the average historical loss method to measure the quantitative portion of the ACL over the forecast and reversion periods.

Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. The company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses.

Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a loan modified to a borrower experiencing financial difficulty will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company.

Accrued interest receivable on loans totaled $553,559 and $560,972 at March 31, 2026 and September 30, 2025, respectively, and is included within accrued interest receivable on the consolidated balance sheets. This amount is excluded from the estimate of expected credit losses.

In the course of working with borrowers, the Bank may choose to restructure the contractual terms of certain loans. Terms may be modified to fit the ability of the borrower to repay in line with the borrower’s current financial status, and the modification of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms or a combination of the two. If such efforts by the Bank do not result in a satisfactory arrangement, the loan is referred to legal counsel, at which time foreclosure proceedings are initiated. At any time prior to a sale of the property at foreclosure, the Bank may terminate foreclosure proceedings if the borrower is able to work out a satisfactory payment plan.

It is the Bank’s policy that any loans modified for borrowers experiencing financial difficulty on nonaccrual status prior to being modified remain on nonaccrual status until nine months of satisfactory borrower performance, at which time management would consider its return to accrual status. If a loan was accruing at the time of restructuring, the Bank reviews the loan to determine if it is appropriate to continue the accrual of interest on the restructured loan

Unfunded Commitments

The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL on unfunded commitments is adjusted through the provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life consistent with the related ACL methodology.

Servicing Assets

When mortgage loans are sold with servicing retained, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing assets are included in other assets on the consolidated balance sheets.

Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. No changes in valuation allowances have been reported on the income statements. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses.

Servicing fee income, which is reported on the consolidated income statement as other noninterest income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income.

Employee Stock Ownership Plan (ESOP)

The cost of shares issued to the Employee Stock Ownership Plan (“ESOP”), but not yet allocated to participants, is shown as a reduction of shareholders’ equity. Compensation expense is based on the average fair value of shares as they are committed to be released to participant accounts.

Earnings Per Share

Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the period. Unallocated common shares held by the ESOP are shown as a reduction in shareholders’ equity and are excluded from weighted-average common shares outstanding for both basic and diluted earnings per share calculations until they are committed to be released.

Diluted earnings per share is adjusted for the dilutive effects of stock-based compensation and is calculated using the two-class method or the treasury stock method. The diluted average number of common shares outstanding has been increased for the assumed exercise of stock-based compensation with the proceeds used to purchase treasury shares at the average market price for the period.

Revenue Recognition

The Company accounts for certain revenues in accordance with Accounting Standards Update (“ASU”) 2014-09 Revenue from Contracts with Customers (ASC 606) and all subsequent ASUs that modified ASC 606. ASC 606 provides that an entity should recognize revenue to depict the transfer of promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The majority of the Company’s revenue, including net interest income, fees related to loans and loan commitments, net securities gains (losses), gain on sale of loans and income from bank-owned life insurance are not included within the scope of ASC 606. For the revenue streams in the scope of ASC 606, service charges on deposits and electronic banking fees, there are no significant judgments related to the amount and timing of revenue recognition. All of the Company’s in scope revenue from contracts with customers is recognized within other noninterest income.

Deposit Services. The Bank generates revenues through fees charged to depositors related to deposit account maintenance fees, overdrafts, ATM fees, wire transfers and additional miscellaneous services provided at the request of the depositor.

For deposit-related services, revenue is recognized when performance obligations are satisfied, which is, generally, at a point in time.

Stock Compensation Plans

The Company accounts for stock compensation in accordance with accounting guidance set forth in Financial Accounting Standards Board (“FASB”) ASC Topic 718, Compensation—Stock Compensation, which requires that compensation costs relating to share-based payment transactions be recognized in financial statements. The cost is measured based on the grant date fair value of the equity instruments issued. The stock compensation accounting guidance covers a wide range of share-based compensation arrangements including stock options, restricted share plans, performance-based awards, share appreciation rights, and employee share purchase plans.

The stock compensation accounting guidance requires that compensation costs for all stock awards be calculated and recognized over the directors or employees’ service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. A Black-Scholes model is used to estimate the fair value of stock options. An option is considered to be forfeited, if the grant stock option were not exercised prior to vesting. At the date of grant, the Bank estimates the

forfeiture rate as part of its initial determination of the fair-value of options granted and then adjusts forfeitures as they occur.

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Debt Securities

6 Months Ended

Mar. 31, 2026

Investments, Debt and Equity Securities [Abstract]

Debt Securities

Note 2:    Debt Securities

The amortized cost and fair values, together with gross unrealized gains and losses of securities are as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Available-for-sale Debt Securities:
March 31, 2026
U.S. Government agencies	$	1,101,652	$	17,382	$	(6,307)	$	1,112,727
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,631,260		32,818		(162,504)		3,501,574
State and political subdivisions		5,332,480		23,950		(244,692)		5,111,738
	$	10,065,392	$	74,150	$	(413,503)	$	9,726,039

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Available-for-sale Debt Securities:
September 30, 2025
U.S. Government agencies		2,476,121		17,389		(5,960)		2,487,550
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,984,674		26,641		(188,437)		3,822,878
State and political subdivisions		3,688,794		—		(343,108)		3,345,686
	$	10,149,589	$	44,030	$	(537,505)	$	9,656,114

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Held-to-maturity Debt Securities:
March 31, 2026
Mortgage-backed Government Sponsored Enterprises (GSEs)	$	60,210	$	—	$	(610)	$	59,600
			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Held-to-maturity Debt Securities:
September 30, 2025
Mortgage-backed Government Sponsored Enterprises (GSEs)	$	67,723	$	—	$	(543)	$	67,180

The Company had no allowance for credit losses on available-for-sale and held-to-maturity debt securities at March 31, 2026 and September 30, 2025.

The amortized cost and fair value of available-for-sale debt securities at March 31, 2026 by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties:

	Amortized		Fair
	Cost		Value
March 31, 2026
Within one year	$	—	$	—
One to five years		—		—
Five to ten years		1,330,145		1,307,917
After ten years		5,103,987		4,916,548
		6,434,132		6,224,465
Mortgage-backed GSEs		3,631,260		3,501,574
Totals	$	10,065,392	$	9,726,039

Maturity information for held-to-maturity debt securities is not presented since expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

The carrying value of securities pledged as collateral, to secure public deposits and for other purposes, was approximately $1.1 million at March 31, 2026 and September 30, 2025.

There were no sales of available for sale debt securities during the three month period ended March 31, 2026. Proceeds from sales of available for sale debt securities totaled approximately $2.1 million during the six-month period ended March 31, 2026, resulting in gross realized losses of $12,000.

Certain investments in debt securities are reported in the financial statements at an amount less than their historical cost. Total fair value of these investments, comprised of 19 securities at March 31, 2026 and 25 securities at September 30, 2025, was approximately $6.4 million and $8.4 million or 65% and 86%, respectively, of the fair value of the Company’s total investment portfolio. These declines primarily resulted from changes in market interest rates.

Based on evaluation of available evidence, including recent changes in market interest rates and information obtained from regulatory filings, management believes the declines in fair value for these securities are not credit-related.

The following tables show the Company’s investments’ gross unrealized losses and fair value of the Company’s investments with unrealized losses, for which an allowance for credit loss has not been recorded, aggregated by investment class and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2026 and September 30, 2025:

	March 31, 2026
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Debt Securities	Value		Losses		Value		Losses		Value		Losses
Available for sale
U.S. Government agencies	$	617,693	$	(6,307)	$	—	$	—	$	617,693	$	(6,307)
Mortgage-backed Government Sponsored Enterprises (GSEs)		—		—		2,694,576		(162,504)		2,694,576		(162,504)
State and political subdivisions		569,560		(7,450)		2,485,341		(237,242)		3,054,901		(244,692)
	$	1,187,253	$	(13,757)	$	5,179,917	$	(399,746)	$	6,367,170	$	(413,503)
Held to maturity
Mortgage-backed Government Sponsored Enterprises (GSEs)		—	$	—	$	59,600		(610)		59,600		(610)
Total	$	1,187,253	$	(13,757)	$	5,239,517	$	(400,356)	$	6,426,770	$	(414,113)

	September 30, 2025
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Debt Securities	Value		Losses		Value		Losses		Value		Losses
Available for sale
U.S. Government agencies	$	—	$	—	$	1,994,040	$	(5,960)	$	1,994,040	$	(5,960)
Mortgage-backed Government Sponsored Enterprises (GSEs)		560,974		(15,975)		2,418,879		(172,462)		2,979,853		(188,437)
State and political subdivisions		1,414,624		(67,653)		1,931,062		(275,455)		3,345,686		(343,108)
	$	1,975,598	$	(83,628)	$	6,343,981	$	(453,877)	$	8,319,579	$	(537,505)
Held to maturity
Mortgage-backed Government Sponsored Enterprises (GSEs)		—		—		67,180		(543)		67,180		(543)
Total	$	1,975,598	$	(83,628)	$	6,411,161	$	(454,420)	$	8,386,759	$	(538,048)

U.S. Government Agencies and State and Political Subdivisions

Unrealized losses on these securities have not been recognized because the issuers’ bonds are of high credit quality, values have only been impacted by changes in interest rates since the securities were purchased, and the Company has the intent and ability to hold the securities for the foreseeable future. The fair value is expected to recover as the bonds approach the maturity date. Because the decline in market value was attributable to changes in interest rates, and not credit quality, and because the Company typically does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company has not established an allowance for credit losses for these securities at March 31, 2026 and September 30, 2025.

Mortgage-backed GSEs

The unrealized losses on the Company’s investment in residential mortgage-backed government sponsored enterprises were caused primarily by changes in interest rates. The Company expects to recover the amortized cost basis over the term of the securities. Because the decline in market value is attributable to changes in interest rates, and not credit quality, and because the Company typically does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company has not established an allowance for credit losses for these securities at March 31, 2026 and September 30, 2025.

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Loans and Allowance for Credit Losses

6 Months Ended

Mar. 31, 2026

Receivables [Abstract]

Loans and Allowance for Credit Losses

Note 3:    Loans and Allowance for Credit Losses

Categories of loans were as follows:

	March 31,		September 30,
	2026		2025
Real estate loans:
Residential	$	87,860,463	$	78,774,355
Multi-family		1,012,288		1,204,664
Agricultural		37,472,449		46,317,040
Commercial		2,276,659		2,326,429
Construction and land		5,014,490		4,264,994
Home equity line of credit (HELOC)		4,320,535		4,771,614
Commercial and industrial		1,089,499		1,233,406
Consumer		4,393,219		5,085,548
Total loans		143,439,602		143,978,050
Less:
Undisbursed loans in process		433,789		415,915
Net deferred loan fees		294,344		304,570
Allowance for credit losses		866,241		960,307
Net loans	$	141,845,228	$	142,297,258

Mortgage loans serviced for others are not included in the accompanying consolidated balance sheets. The unpaid principal balances of these loans at March 31, 2026 and September 30, 2025, were approximately $15.6 million and $16.4 million respectively. At March 31, 2026 and September 30, 2025 the mortgage-servicing rights included in other assets on the consolidated balance sheets were approximately $106,000 and $111,000, respectively.

The following tables present the activity in the allowance for credit losses based on portfolio segment for the three and six months ended March 31, 2026 and 2025.

	Three Months Ended March 31, 2026
			Provision
	Balance		(credit)						Balance
	January 1, 2026		for credit losses		Charge-offs		Recoveries		March 31, 2026
Real estate loans:
Residential	$	714,027	$	(40,750)	$	—	$	—	$	673,277
Multi-family		2,379		(354)		—		—		2,025
Agricultural		84,057		(9,112)		—		—		74,945
Commercial		4,588		(35)		—		—		4,553
Construction and land		8,905		1,124		—		—		10,029
Home equity line of credit (HELOC)		14,369		(1,407)		—		—		12,962
Commercial and industrial		2,158		75		—		—		2,233
Consumer		82,887		65,459		(182,315)		120,186		86,217
Allowance for credit losses on loans	$	913,370	$	15,000	$	(182,315)	$	120,186	$	866,241

	Three Months Ended March 31, 2025
			Provision
	Balance		(credit)						Balance
	January 1, 2025		for credit losses		Charge-offs		Recoveries		March 31, 2025
Real estate loans:
Residential	$	664,053	$	(6,655)	$	—	$	—	$	657,398
Multi-family		2,501		(36)		—		—		2,465
Agricultural		112,248		(2,537)		—		—		109,711
Commercial		4,598		(111)		—		—		4,487
Construction and land		81,785		(8,853)		—		—		72,932
Home equity line of credit (HELOC)		14,695		(420)		—		—		14,275
Commercial and industrial		3,358		65		—		—		3,423
Consumer		76,533		46,547		(125,040)		71,227		69,267
Total loans	$	959,771	$	28,000	$	(125,040)	$	71,227	$	933,958

	Six Months Ended March 31, 2026
			Provision
	Balance		(credit)						Balance
	October 1, 2025		for credit losses		Charge-offs		Recoveries		March 31, 2026
Real estate loans:
Residential	$	745,709	$	(72,432)	$	—	$	—	$	673,277
Multi-family		2,409		(384)		—		—		2,025
Agricultural		92,634		(17,689)		—		—		74,945
Commercial		4,653		(100)		—		—		4,553
Construction and land		8,530		1,499		—		—		10,029
Home equity line of credit (HELOC)		14,315		(1,353)		—		—		12,962
Commercial and industrial		2,453		(220)		—		—		2,233
Consumer		89,604		105,679		(294,700)		185,634		86,217
Allowance for credit losses on loans	$	960,307	$	15,000	$	(294,700)	$	185,634	$	866,241

	Six Months Ended March 31, 2025
			Provision
	Balance		(credit)						Balance
	October 1, 2024		for credit losses		Charge-offs		Recoveries		March 31, 2025
Real estate loans:
Residential	$	691,852	$	(34,454)	$	—	$	—	$	657,398
Multi-family		2,525		(60)		—		—		2,465
Agricultural		107,284		2,427		—		—		109,711
Commercial		4,917		(430)		—		—		4,487
Construction and land		92,660		(19,728)		—		—		72,932
Home equity line of credit (HELOC)		14,910		(635)		—		—		14,275
Commercial and industrial		3,314		109		—		—		3,423
Consumer		45,806	$	80,771		(129,452)		72,142		69,267
Allowance for credit losses on loans	$	963,268	$	28,000	$	(129,452)	$	72,142	$	933,958

The Company had $639,000 of loans individually evaluated at March 31, 2026, and $1.6 million of loans individually evaluated at September 30, 2025. The Company had no loans identified as collateral dependent at March 31, 2026 or September 30, 2025.

The Company has adopted a standard loan grading system for all loans, as follows:

Pass. Loans of sufficient quality, which generally are protected by the current net worth and paying capacity of the obligor or by the value of the asset or underlying collateral.

Special Mention. Loans have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Bank’s credit position at some future date.

Substandard. Loans which are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Usually, this classification includes all 90 days or more, non-accrual, and past due loans.

Doubtful. Loans which have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.

Loss. Loans considered uncollectible and of such little value that continuance as an asset without the establishment of a specific reserve is not warranted.

Risk characteristics of each loan portfolio segment are described as follows:

Residential Real Estate

These loans include first liens and junior liens on 1-4 family residential real estate (both owner and non-owner occupied). The main risks for these loans are changes in the value of the collateral and stability of the local economic environment and its impact on the borrowers’ employment. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Multi-family Real Estate

These loans include loans on residential real estate secured by property with five or more units. The main risks are changes in the value of the collateral, ability of borrowers to collect rents, vacancy and changes in the tenants’ employment status. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Agriculture Real Estate

These loans are primarily loans on farm ground and include loans secured by residential properties located on farm ground, but agricultural activities may not be the primary occupation of the borrowers. The main risks are changes in the value of the collateral and changes in the economy or borrowers’ business operations. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Commercial Real Estate

These loans are generally secured by owner-occupied commercial real estate including warehouses and offices. The main risks are changes in the value of the collateral and ability of borrowers to successfully conduct their business operations. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Construction and Land Real Estate

These loans include construction loans for 1-4 family residential and commercial properties (both owner and non-owner occupied) and first liens on land. The main risks for construction loans include uncertainties in estimating costs of construction and in estimating the market value of the completed project. The main risks for land loans are changes in the value of the collateral and stability of the local economic environment. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

HELOC

These loans are generally secured by owner-occupied 1-4 family residences. The main risks for these loans are changes in the value of the collateral and stability of the local economic environment and its impact on the borrowers’ employment. Management specifically considers unemployment and changes in real estate values in the Bank’s market area.

Commercial and Industrial

The commercial and industrial portfolio includes loans to commercial customers for use in financing working capital needs, equipment purchases and expansions. The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation. Credit risk in these loans is driven by creditworthiness of the borrower and the economic conditions that impact the cash flow stability from business operations.

Consumer Loans

These loans include vehicle loans, share loans and unsecured loans. The main risks for these loans are the depreciation of the collateral values (vehicles) and the financial condition of the borrowers. Major employment changes are specifically considered by management.

Information regarding the credit quality indicators most closely monitored for other than residential real estate loans by class as of March 31, 2026 and September 30, 2025, follows:

	Term Loans Amortized Cost Basis by Origination Year													Revolving Loans		Revolving Loans
	For The Years Ending September 30,													Amortized		Converted
	2026		2025		2024		2023		2022		Prior			Cost Basis		to Term	Total
March 31, 2026
Commercial real estate
Risk Rating
Pass	$	-	$	189,317	$	367,869	$	-	$	721,976	$	997,497	$	-	$	-	$	2,276,659
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	189,317	$	367,869	$	-	$	721,976	$	997,497	$	-	$	-	$	2,276,659
Commercial real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Construction and land
Risk Rating
Pass	$	2,024,687	$	1,066,136	$	1,764,494	$	23,418	$	61,688	$	74,067	$	-	$	-	$	5,014,490
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	2,024,687	$	1,066,136	$	1,764,494	$	23,418	$	61,688	$	74,067	$	-	$	-	$	5,014,490
Construction and land
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Commercial and industrial
Risk Rating
Pass	$	-	$	-	$	-	$	-	$	-	$	301,217	$	788,282	$	-	$	1,089,499
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	-	$	301,217	$	788,282	$	-	$	1,089,499
Commercial and industrial
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Multi Family
Risk Rating
Pass	$	-	$	-	$	-	$	-	$	915,880	$	96,408	$	-	$	-	$	1,012,288
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	915,880	$	96,408	$	-	$	-	$	1,012,288
Multi Family
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Agricultural
Risk Rating
Pass	$	-	$	2,409,758	$	11,900,387	$	8,269,182	$	7,295,759	$	7,597,363	$	-	$	-	$	37,472,449
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	2,409,758	$	11,900,387	$	8,269,182	$	7,295,759	$	7,597,363	$	-	$	-	$	37,472,449
Agricultural
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Total
Risk Rating
Pass	$	2,024,687	$	3,665,211	$	14,032,750	$	8,292,600	$	8,995,303	$	9,066,552	$	788,282	$	-	$	46,865,385
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	2,024,687	$	3,665,211	$	14,032,750	$	8,292,600	$	8,995,303	$	9,066,552	$	788,282	$	-	$	46,865,385

	Term Loans Amortized Cost Basis by Origination Year													Revolving Loans		Revolving Loans
	For The Years Ending September 30,													Amortized		Converted
	2025		2024		2023		2022		2021		Prior			Cost Basis		to Term	Total
September 30, 2025
Commercial real estate
Risk Rating
Pass	$	190,000	$	369,645	$	-	$	731,021	$	905,151	$	130,612	$	-	$	-	$	2,326,429
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	190,000	$	369,645	$	-	$	731,021	$	905,151	$	130,612	$	-	$	-	$	2,326,429
Commercial real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Construction and land
Risk Rating
Pass	$	918,152	$	3,176,710	$	-	$	87,960	$	13,578	$	21,899	$	-	$	-	$	4,218,299
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		46,695		-		-		46,695
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	918,152	$	3,176,710	$	-	$	87,960	$	13,578	$	68,594	$	-	$	-	$	4,264,994
Construction and land
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Commercial and industrial
Risk Rating
Pass	$	-	$	-	$	-	$	-	$	124,594	$	257,022	$	851,790	$	-	$	1,233,406
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	124,594	$	257,022	$	851,790	$	-	$	1,233,406
Commercial and industrial
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Multi Family
Risk Rating
Pass	$	-	$	-	$	-	$	929,569	$	-	$	275,095	$	-	$	-	$	1,204,664
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	929,569	$	-	$	275,095	$	-	$	-	$	1,204,664
Multi Family
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Agricultural
Risk Rating
Pass	$	901,007	$	15,856,843	$	10,492,312	$	7,589,939	$	4,318,434	$	6,467,816	$	-	$	-	$	45,626,351
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		293,231		250,092		-		147,366		-		-		690,689
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	901,007	$	15,856,843	$	10,785,543	$	7,840,031	$	4,318,434	$	6,615,182	$	-	$	-	$	46,317,040
Agricultural
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Total
Risk Rating
Pass	$	2,009,159	$	19,403,198	$	10,492,312	$	9,338,489	$	5,361,757	$	7,152,444	$	851,790	$	-	$	54,609,149
Special Mention		-		-		-		-		-		-		-		-		-
Substandard		-		-		293,231		250,092		-		194,061		-		-		737,384
Doubtful		-		-		-		-		-		-		-		-		-
Total	$	2,009,159	$	19,403,198	$	10,785,543	$	9,588,581	$	5,361,757	$	7,346,505	$	851,790	$	-	$	55,346,533

The Company monitors the credit risk profile by payment activity for residential and consumer loan classes.  Loans past due 90 days or more and loans on nonaccrual status are considered nonperforming. Nonperforming loans are reviewed monthly. The following table presents the amortized cost in residential and consumer loans based on payment activity:

	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans		Revolving Loans
	For The Years Ending September 30,												Amortized		Converted
	2026		2025		2024		2023		2022		Prior		Cost Basis		to Term		Total
March 31, 2026
Residential real estate
Payment Performance
Performing	$	16,268,460	$	12,461,734	$	6,181,169	$	4,319,691	$	12,003,258	$	36,350,688	$	4,320,535	$	86,761	$	91,992,296
Nonperforming		-		-		-		-		-		188,702		-		-		188,702
Total	$	16,268,460	$	12,461,734	$	6,181,169	$	4,319,691	$	12,003,258	$	36,539,390	$	4,320,535	$	86,761	$	92,180,998
Residential real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Consumer
Payment Performance
Performing	$	504,919	$	1,230,865	$	172,374	$	2,393,935	$	23,218	$	22,761	$	-	$	-	$	4,348,072
Nonperforming		-		-		-		45,147		-		-		-		-		45,147
Total	$	504,919	$	1,230,865	$	172,374	$	2,439,082	$	23,218	$	22,761	$	-	$	-	$	4,393,219
Consumer
Current period gross charge-offs	$	-	$	57,363	$	210,172	$	27,165	$	-	$	-	$	-	$	-	$	294,700
Total
Payment Performance
Performing	$	16,773,379	$	13,692,599	$	6,353,543	$	6,713,626	$	12,026,476	$	36,373,449	$	4,320,535	$	86,761	$	96,340,368
Nonperforming		-		-		-		45,147		-		188,702		-		-		233,849
Total	$	16,773,379	$	13,692,599	$	6,353,543	$	6,758,773	$	12,026,476	$	36,562,151	$	4,320,535	$	86,761	$	96,574,217
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans		Revolving Loans
	For The Years Ending September 30,												Amortized		Converted
	2025		2024		2023		2022		2021		Prior		Cost Basis		to Term		Total
September 30, 2025
Residential real estate
Payment Performance
Performing	$	12,630,915	$	8,140,586	$	5,183,326	$	9,284,260	$	17,417,339	$	25,437,880	$	4,771,614	$	98,177	$	82,964,097
Nonperforming		-		-		-		116,431		259,992		205,449		-		-		581,872
Total	$	12,630,915	$	8,140,586	$	5,183,326	$	9,400,691	$	17,677,331	$	25,643,329	$	4,771,614	$	98,177	$	83,545,969
Residential real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Consumer
Payment Performance
Performing	$	1,545,259	$	146,486	$	3,255,323	$	49,261	$	23,431	$	36,588	$	-	$	-	$	5,056,348
Nonperforming		-		26,873		-		2,327		-		-		-		-		29,200
Total	$	1,545,259	$	173,359	$	3,255,323	$	51,588	$	23,431	$	36,588	$	-	$	-	$	5,085,548
Consumer
Current period gross charge-offs	$	156	$	18,040	$	138,992	$	-	$	-	$	-	$	-	$	-	$	157,188
Total
Payment Performance
Performing	$	14,176,174	$	8,287,072	$	8,438,649	$	9,333,521	$	17,440,770	$	25,474,468	$	4,771,614	$	98,177	$	88,020,445
Nonperforming		-		26,873		-		118,758		259,992		205,449		-		-		611,072
Total	$	14,176,174	$	8,313,945	$	8,438,649	$	9,452,279	$	17,700,762	$	25,679,917	$	4,771,614	$	98,177	$	88,631,517

The Company evaluates the loan risk grading system definitions on an ongoing basis. No significant changes were made during the three months ended March 31, 2026 or the year ended September 30, 2025.

The following tables present the Bank’s loan portfolio aging analysis of the recorded investment in loans as of March 31, 2026 and September 30, 2025:

	March 31, 2026
					Greater Than								Total Loans >
	30-59 Days		60-89 Days		90 Days		Total					Total Loans	90 Days &
	Past Due		Past Due		Past Due		Past Due		Current			Receivable	Accruing
Real estate loans:
Residential	$	602,053	$	—	$	124,510	$	726,563	$	87,133,900	$	87,860,463	$	—
Multi-family		—		—		—		—		1,012,288		1,012,288		—
Agricultural		—		—		—		—		37,472,449		37,472,449		—
Commercial		—		—		—		—		2,276,659		2,276,659		—
Construction and land		—		—		44,918		44,918		4,969,572		5,014,490		—
Home equity line of credit (HELOC)		—		—		—		—		4,320,535		4,320,535		—
Commercial and industrial		—		—		—		—		1,089,499		1,089,499		—
Consumer		103,531		—		45,147		148,678		4,244,541		4,393,219		45,147
Total	$	705,584	$	—	$	214,575	$	920,159	$	142,519,443	$	143,439,602	$	45,147

	September 30, 2025
					Greater than								Total Loans>
	30-59 Days		60-89 Days		90 Days		Total				Total Loans		90 Days &
	Past Due		Past Due		Past Due		Past Due		Current		Receivable		Accruing
Real estate loans:
Residential	$	575,867	$	220,713	$	581,873	$	1,378,453	$	77,395,902	$	78,774,355	$	116,431
Multi-family		—		—		—		—		1,204,664		1,204,664		—
Agricultural		—		156,881		690,990		847,871		45,469,169		46,317,040		440,598
Commercial		—		—		—		—		2,326,429		2,326,429		—
Construction and land		—		—		46,695		46,695		4,218,299		4,264,994		46,695
Home equity line of credit (HELOC)		—		—		—		—		4,771,614		4,771,614		—
Commercial and industrial		24,814		—		—		24,814		1,208,592		1,233,406		—
Consumer		21,247		—		29,200		50,447		5,035,101		5,085,548		29,200
Total	$	621,928	$	377,594	$	1,348,758	$	2,348,280	$	141,629,770	$	143,978,050	$	632,924

The Company had no loans identified as collateral dependent as of March 31, 2026 and September 30, 2025.

The Company’s total nonaccrual loans at March 31, 2026 and September 30, 2025, were as follows:

	Nonaccrual Loans						Loans Past Due
	With No Allowance		With Allowance				Over 90 Days		Total
	for Credit Loss		for Credit Loss		Total		and Still Accruing		Nonperforming
March 31, 2026
Residential real estate loans	$	184,792	$	3,910	$	188,702	$	—	$	188,702
Agricultural		-		—		-		—		-
Consumer		—		—		—		45,147		45,147
	$	184,792	$	3,910	$	188,702	$	45,147	$	233,849
	Nonaccrual Loans						Loans Past Due
	With No Allowance		With Allowance				Over 90 Days		Total
	for Credit Loss		for Credit Loss		Total		and Still Accruing		Nonperforming
September 30, 2025
Residential real estate loans	$	461,488	$	3,953	$	465,441	$	116,431	$	581,872
Construction and land		250,092		—		250,092		440,598		690,690
Commercial and industrial		-		—		-		46,695		46,695
Consumer		-		—		-		29,200		29,200
	$	711,580	$	3,953	$	715,533	$	632,924	$	1,348,457

There were no loans modified for borrowers experiencing financial difficulty during the three months ended March 31, 2026 and 2025 and during the year ended September 30, 2025. There were no loans modified for borrowers experiencing financial difficulty in the past 12 months that subsequently defaulted during the three months ended March 31, 2026 and 2025 and during the year ended September 30, 2025.

XML

Regulatory Matters

6 Months Ended

Mar. 31, 2026

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Regulatory Matters

Note 4:    Regulatory Matters

The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities and certain off-balance-sheet items as calculated under U.S. GAAP reporting requirements and regulatory capital standards. The Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Furthermore, the Bank’s regulators could require adjustments to regulatory capital not reflected in these financial statements.

Quantitative measures established by regulatory reporting standards to ensure capital adequacy require the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined) to risk-weighted assets (as defined), common equity Tier I capital (as defined) to total risk-weighted assets (as defined) and of Tier I capital (as defined) to average assets (as defined). Management believes, as of March 31, 2026, that the Bank met all capital adequacy requirements to which it is subject.

As of March 31, 2026 the most recent notification from the regulators categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based capital, Tier I risk-based capital, common equity Tier I risk-based capital and Tier I leverage ratios as set forth in the table.

There are no conditions or events since that notification that management believes have changed the Bank’s category.

The Bank’s actual and required capital amounts and ratios are as follows (table amounts in thousands):

							To Be Well Capitalized
							Under
							Prompt Corrective
				For Capital Adequacy			Action
	Actual			Purposes			Provisions
	Amount		Ratio	Amount		Ratio	Amount		Ratio
	(Dollars in thousands)
As of March 31, 2026
Total Capital
(to Risk-Weighted Assets)	$	23,663	19.5%	$	9,719	8.0%	$	12,149	10.0%
Tier 1 Capital
(to Risk-Weighted Assets)	$	22,797	18.8%	$	7,289	6.0%	$	9,719	8.0%
Common Equity Tier I Capital
(to Risk-Weighted Assets)	$	22,797	18.8%	$	5,467	4.5%	$	7,897	6.5%
Tier I Capital
(to Average Total Assets)	$	22,797	13.0%	$	7,039	4.0%	$	8,798	5.0%
As of September 30, 2025
Total Capital
(to Risk-Weighted Assets)	$	23,037	17.8%	$	10,342	8.0%	$	12,928	10.0%
Tier 1 Capital
(to Risk-Weighted Assets)	$	22,072	17.1%	$	7,757	6.0%	$	10,342	8.0%
Common Equity Tier I Capital
(to Risk-Weighted Assets)	$	22,072	17.1%	$	5,817	4.5%	$	8,403	6.5%
Tier I Capital
(to Average Total Assets)	$	22,072	12.5%	$	7,047	4.0%	$	8,808	5.0%

XML

Disclosures about Fair Value of Assets and Liabilities

6 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Disclosures about Fair Value of Assets and Liabilities

Note 5:    Disclosures about Fair Value of Assets and Liabilities

Fair value is the exchange price that would be received to sell an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value:

Level 1Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3Significant unobservable inputs that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

Recurring Measurements

The following table presents the fair value measurements of assets recognized in the accompanying consolidated balance sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at March 31, 2026 and September 30, 2025:

			Fair Value Measurements Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for		Observable		Unobservable
	Fair		Identical Assets		Inputs		Inputs
	Value		(Level 1)		(Level 2)		(Level 3)
March 31, 2026
U.S. Government agencies	$	1,112,727	$	—	$	1,112,727	$	—
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,501,574		—		3,501,574		—
State and political subdivisions		5,111,738		—		5,111,738		—
September 30, 2025
U.S. Government agencies	$	2,487,550	$	—	$	2,487,550	$	—
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,822,878		—		3,822,878		—
State and political subdivisions		3,345,686		—		3,345,686		—

Following is a description of the valuation methodologies used for assets measured at fair value on a recurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. There are no liabilities measured at fair value on a recurring basis. There have been no significant changes in the valuation techniques during the three months ended March 31, 2026 and the year ended September 30, 2025.

Debt Securities Available-for-Sale

Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independently sourced market parameters, including, but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. In certain cases where Level 1 or Level 2 are not available, securities are classified within Level 3 of the hierarchy. The Bank had no Level 3 securities.

Nonrecurring Measurements

The Company had no assets or liabilities measured at fair value on a nonrecurring basis at March 31, 2026 and September 30, 2025.

The estimated fair values of the Company’s financial instruments not carried at fair value on the concolidated balance sheets are as follows:

	Carrying		Fair		Fair Value Measurements Using
	Value		Value		Level 1		Level 2		Level 3
March 31, 2026
Financial assets:
Cash and cash equivalents	$	5,951,619	$	5,951,619	$	5,951,619	$	—	$	—
Interest-bearing time deposits		100,000		100,000		100,000		—		—
Held-to-maturity debt securities		60,210		59,600		—		59,600		—
Loans held for sale		6,146,205		6,618,000		—		—		6,618,000
Loans, net		141,845,228		135,597,000		—		—		135,597,000
FHLB Stock		921,500		921,500		—		921,500		—
Bank owned life insurance		1,900,697		1,900,697		1,900,697		—		—
Accrued interest receivable		639,336		639,336		639,336		—		—
Financial liabilities:
Deposits		146,554,265		146,653,872		98,543,872		—		48,110,000
FHLB advances		1,000,000		1,000,000		—		1,000,000		—
Accrued interest payable		349,560		349,560		349,560		—		—
September 30, 2025
Financial assets:
Cash and cash equivalents	$	5,363,187	$	5,363,187	$	5,363,187	$	—	$	—
Interest-bearing time deposits		100,000		100,000		100,000		—		—
Held-to-maturity debt securities		67,723		67,180		—		67,180		—
Loans held for sale		8,051,398		8,461,000		—		—		8,461,000
Loans, net		142,297,258		135,944,000		—		—		135,944,000
FHLB Stock		1,208,100		1,208,100		—		1,208,100		—
Bank owned life insurance		1,876,454		1,876,454		1,876,454		—		—
Accrued interest receivable		678,357		678,357		678,357		—		—
Financial liabilities:
Deposits		143,988,029		145,550,412		93,702,412		—		51,848,000
FHLB advances		6,000,000		5,999,999		—		5,999,999		—
Accrued interest payable		319,239		319,239		319,239		—		—

Limitations: Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Fair value estimates may not be realizable in an immediate settlement of the instrument. In some instances, there are no quoted market prices for the Company’s various financial instruments, in which case fair values may be based on estimates using present value or other valuation techniques, or based on judgments regarding future expected loss experience, current economic conditions, risk characteristic of the financial instruments, or other factors. Those techniques are significantly affected by the assumptions used, including the discount rate and estimate of future cash flows. Subsequent changes in assumptions could significantly affect the estimates.

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Commitments and Credit Risks

6 Months Ended

Mar. 31, 2026

Commitments and Contingencies Disclosure [Abstract]

Commitments and Credit Risks

Note 6:    Commitments and Credit Risks

Commitments to originate loans are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Since a portion of the line may expire without being

drawn upon, the total unused lines do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Management uses the same credit policies in granting lines of credit as it does for on-balance-sheet instruments. The allowance for credit losses for off balance sheet liabilities was $5,000 at March 31, 2026 and September 30, 2025, and was being held in other liabilities on the consolidated balance sheets.

Commitments outstanding were as follows:

	March 31,		September 30,
	2026		2025
Commitments to originate loans	$	4,863,197	$	2,445,371
Undisbursed balance of loans closed		6,989,053		7,154,955
Total	$	11,852,250	$	9,600,326

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Earnings Per Share

6 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Earnings Per Share

Note 7:    Earnings Per Share

Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the period. Unallocated common shares held by the Employee Stock Ownership Plan (“ESOP”) are not included in the weighted-average number of common shares outstanding for purposes of calculating basic earnings per common share until they are committed to be released.

The following table sets forth the computation of basic and diluted earnings per share:

	Three Months Ended		Six Months Ended
	March 31,		March 31,
	2026	2025	2026	2025
Net income	$ 272,139	$ 35,367	$ 443,409	$ 311,675
Weighted-average common shares outstanding, gross	1,020,656	1,018,575	1,023,399	1,020,797
Less unallocated ESOP shares	(65,470)	(70,926)	(68,213)	(73,654)
Weighted-average common shares outstanding	955,186	947,649	955,186	947,143
Basic earnings per share	$ 0.28	$ 0.04	$ 0.45	$ 0.33
Weighted-average common shares outstanding	955,186	947,649	955,186	947,143
Diluted effect of share based compensation	18,656	-	20,552	-
Weighted-average common shares outstanding - Diluted	973,842	947,649	975,738	947,143
Diluted earnings per share	$ 0.28	$ 0.04	$ 0.45	$ 0.33

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Employee Stock Ownership Plan (ESOP)

6 Months Ended

Mar. 31, 2026

Retirement Benefits [Abstract]

Employee Stock Ownership Plan (ESOP )

Note 8:    Employee Stock Ownership Plan (ESOP)

In connection with the Conversion in July 2023, the Company established a leveraged ESOP for eligible employees of the Bank. The ESOP trust purchased 81,838 shares of Company common stock at the initial public offering price of $10.00 per share financed by the 15-year term loan with the Company. The interest rate of the loan is 8.50% and the maturity date is December 31, 2037. The loan is secured by shares purchased with the loan proceeds and will be repaid by the ESOP with funds from the Bank’s discretionary contributions to the ESOP. When the loan payments are made, ESOP shares are allocated to the participants based on relative compensation. The Bank recognizes expense based on the average fair value of the shares to be allocated to the ESOP participants.

Activity in the ESOP for the six months ended March 31, 2026 and 2025 is as follows:

	For the Six Months Ended
	March 31,
	2026	2025
Shares committed to be released to participants	—	—
Shares allocated to participants	16,368	10,912
Unreleased shares	65,470	70,926
ESOP shares at end of plan year	81,838	81,838
Fair value of unreleased shares	$ 1,096,623	$ 992,964

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Share Based Compensation Arrangements

6 Months Ended

Mar. 31, 2026

Share-Based Payment Arrangement [Abstract]

Share Based Compensation Arrangements

Note 9:    Share Based Compensation Arrangements

In February 2025, the Company’s shareholders approved the Mercer Bancorp, Inc. 2025 Equity Incentive Plan (the “2025 Plan”). The 2025 Plan authorized the issuance or delivery to participants of up to 143,215 shares of the Company’s common stock pursuant to the grants of restricted stock awards, restricted stock unit awards, incentive stock options and non-qualified stock options. Of this number, the maximum number of shares of Company common stock that may be issued under the 2025 Plan pursuant to the exercise of stock options is 102,297 shares and the maximum number of shares of Company common stock that may be issued as restricted stock awards or restricted stock units is 40,918. Shares subject to award under the 2025 Plan may be authorized but unissued shares or treasury shares.

A summary of the status of the Company’s unvested restricted shares as of March 31, 2026, and changes during the six month period then ended, is presented below:

		Weighted-average
		Grant Date
	Shares	Fair Value
Nonvested shares, October 1, 2025	31,504	$ 14.05
Awarded	-	-
Vested	(1,636)	14.20
Forfeited	-	-
Nonvested shares, March 31, 2026	29,868	$ 14.05

The following table summarizes stock option activity for the six month period ended March 31, 2026:

			Weighted-average
			Remaining	Aggregate
		Weighted-average	Contractual Term	Intrinsic
March 31, 2026	Shares	Exercise Price	(Years)	Value
Outstanding, beginning of period	81,634	$ 14.06	9.23	$ 117,786
Awarded				-
Exercised				-
Forfeited	-	-	-	-
Outstanding, end of period	81,634	$ 14.06	8.98	$ 219,829
Shares exercisable at March 31, 2026	4,091	$ 14.20

As of March 31, 2026, there was approximately $665,000 of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the 2025 Plan. That cost is expected to be recognized over a weighted-average period of 3.9 years. During the three and six months ended March 31, 2026, the Company recorded $22,000 and $44,000, respectively in share-based compensation expense related to restricted stock awards, which is included in salaries and employee benefits and director fees. During three and six months ended March 31, 2026, the Company recorded $20,000 and $39,000, respectively in share-based compensation expense related to stock options, which is included in salaries and employee benefits and director fees.

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Pay vs Performance Disclosure - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Pay vs Performance Disclosure
Net Income (Loss)	$ 272,139	$ 35,367	$ 443,409	$ 311,675

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Insider Trading Arrangements	6 Months Ended
	Mar. 31, 2026
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Nature of Operations and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Mar. 31, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Operations

Nature of Operations

Mercer Bancorp, Inc. (“Mercer Bancorp” or the “Company”) is a Maryland corporation incorporated on March 7, 2023, to serve as the bank holding company for Mercer Savings Bank (“Mercer Savings” or the “Bank”) in connection with the Bank’s conversion from the mutual form of organization to the stock form of organization (the “Conversion”). The Conversion was completed on July 26, 2023. In connection with the Conversion, Mercer Bancorp acquired 100% ownership of Mercer Savings and the Company offered and sold 972,970 shares of its common stock at $10.00 per share, for gross offering proceeds of $9,729,700. The Company also contributed 50,000 shares of common stock and $100,000 in cash to Mercer Savings Charitable Foundation, Inc.

Mercer Savings is an Ohio chartered stock bank engaged primarily in the business of providing a variety of deposit and lending services to individual customers primarily in Mercer and Darke counties in Ohio, and Adams and Jay counties in Indiana. Its primary deposit products are checking, savings, and term certificate accounts, and its primary lending products are residential and commercial mortgage, agricultural, commercial, home equity lines of credit and installment loans, and indirect automobile loans. Its operations are conducted through its four office locations in Celina, Ft. Recovery and Greenville, Ohio, one office location in Berne, Indiana, and a mobile branch serving Geneva and Decatur, Indiana. The Bank faces competition from other financial institutions and is subject to the regulation of certain federal and state banking agencies and undergoes periodic examinations by those regulatory authorities.

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements as of and for the three and six months ended March 31, 2026, include the accounts of the Company and the Bank, its wholly-owned subsidiary. All intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for credit losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, valuation of mortgage servicing rights and deferred tax assets and fair values of financial instruments.

Debt Securities

Debt Securities

Debt securities held by the Company generally are classified and recorded in the financial statements as follows:

Classified as	Description	Recorded at
Held to maturity (“HTM”)	Certain debt securities that management has the positive intent and ability to hold to maturity	Amortized cost, net of allowance for credit losses
Trading	Securities that are bought and held principally for the purpose of selling in the near term and, therefore, held for only a short period of time	Fair value, with changes in fair value included in earnings
Available for sale (“AFS”)	Securities not classified as HTM or trading	Fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income (loss)

Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities, identified as the call date as to premiums and maturity date as to discounts. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.

Loans Held for Sale

Loans Held for Sale

Mortgage and indirect auto loans originated and intended for sale in the secondary market are carried at the lower of cost or fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to noninterest income. Gains and losses on loan sales are recorded in noninterest income, and direct loan origination costs and fees are deferred at origination of the loan and are recognized in noninterest income upon sale of the loan.

Lender Risk Account (LRA)

Lender Risk Account (LRA)

The Federal Home Loan Bank (FHLB) requires institutions participating in its mortgage loan sales program to place a portion of the sale proceeds in a lender risk account (LRA). The LRA is maintained to offset any credit losses associated with loans sold to the FHLB by the participating institution as well as losses experienced by the overall loan pool should an individual institution’s LRA be fully exhausted. The loan sale agreements provide for the FHLB to begin distributions of the LRA funds to the Company after loan pools have had five years of payment history. After five years, the required LRA balance is recalculated at least annually and excess amounts are returned to the participating institutions.

Loans

Loans

Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances, adjusted for unearned income, charge-offs, the allowance for credit losses and any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.

For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan. For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition

of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For individually evaluated loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.

The Company charges-off loans, or portions thereof, when the Company reasonably determines the amount of the loss. The Bank adheres to delinquency thresholds established by applicable regulatory guidance to determine the charge-off timeframe for these loans. Loans at these delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.

For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

When cash payments are received on individually evaluated loans, the Company records the payment as interest income unless collection of the remaining recorded principal amount is doubtful, at which time payments are used to reduce the principal balance of the loan. Loans to borrowers experiencing financial difficulties that have been modified recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least nine months.

Servicing Assets

Servicing Assets

When mortgage loans are sold with servicing retained, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing assets are included in other assets on the consolidated balance sheets.

Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. No changes in valuation allowances have been reported on the income statements. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses.

Servicing fee income, which is reported on the consolidated income statement as other noninterest income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal; or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income.

Employee Stock Ownership Plan (ESOP)

Employee Stock Ownership Plan (ESOP)

The cost of shares issued to the Employee Stock Ownership Plan (“ESOP”), but not yet allocated to participants, is shown as a reduction of shareholders’ equity. Compensation expense is based on the average fair value of shares as they are committed to be released to participant accounts.

Earnings Per Share

Earnings Per Share

Basic earnings per share is calculated by dividing net income by the weighted-average number of common shares outstanding during the period. Unallocated common shares held by the ESOP are shown as a reduction in shareholders’ equity and are excluded from weighted-average common shares outstanding for both basic and diluted earnings per share calculations until they are committed to be released.

Diluted earnings per share is adjusted for the dilutive effects of stock-based compensation and is calculated using the two-class method or the treasury stock method. The diluted average number of common shares outstanding has been increased for the assumed exercise of stock-based compensation with the proceeds used to purchase treasury shares at the average market price for the period.

Revenue Recognition

Revenue Recognition

The Company accounts for certain revenues in accordance with Accounting Standards Update (“ASU”) 2014-09 Revenue from Contracts with Customers (ASC 606) and all subsequent ASUs that modified ASC 606. ASC 606 provides that an entity should recognize revenue to depict the transfer of promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The majority of the Company’s revenue, including net interest income, fees related to loans and loan commitments, net securities gains (losses), gain on sale of loans and income from bank-owned life insurance are not included within the scope of ASC 606. For the revenue streams in the scope of ASC 606, service charges on deposits and electronic banking fees, there are no significant judgments related to the amount and timing of revenue recognition. All of the Company’s in scope revenue from contracts with customers is recognized within other noninterest income.

Deposit Services. The Bank generates revenues through fees charged to depositors related to deposit account maintenance fees, overdrafts, ATM fees, wire transfers and additional miscellaneous services provided at the request of the depositor.

For deposit-related services, revenue is recognized when performance obligations are satisfied, which is, generally, at a point in time.

Stock Compensation Plans

Stock Compensation Plans

The Company accounts for stock compensation in accordance with accounting guidance set forth in Financial Accounting Standards Board (“FASB”) ASC Topic 718, Compensation—Stock Compensation, which requires that compensation costs relating to share-based payment transactions be recognized in financial statements. The cost is measured based on the grant date fair value of the equity instruments issued. The stock compensation accounting guidance covers a wide range of share-based compensation arrangements including stock options, restricted share plans, performance-based awards, share appreciation rights, and employee share purchase plans.

The stock compensation accounting guidance requires that compensation costs for all stock awards be calculated and recognized over the directors or employees’ service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. A Black-Scholes model is used to estimate the fair value of stock options. An option is considered to be forfeited, if the grant stock option were not exercised prior to vesting. At the date of grant, the Bank estimates the

forfeiture rate as part of its initial determination of the fair-value of options granted and then adjusts forfeitures as they occur.

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Debt Securities (Tables)

6 Months Ended

Mar. 31, 2026

Investments, Debt and Equity Securities [Abstract]

Schedule of available-for-sale securities for amortized cost and fair values, together with gross unrealized gains and losses of securities

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Available-for-sale Debt Securities:
March 31, 2026
U.S. Government agencies	$	1,101,652	$	17,382	$	(6,307)	$	1,112,727
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,631,260		32,818		(162,504)		3,501,574
State and political subdivisions		5,332,480		23,950		(244,692)		5,111,738
	$	10,065,392	$	74,150	$	(413,503)	$	9,726,039

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Available-for-sale Debt Securities:
September 30, 2025
U.S. Government agencies		2,476,121		17,389		(5,960)		2,487,550
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,984,674		26,641		(188,437)		3,822,878
State and political subdivisions		3,688,794		—		(343,108)		3,345,686
	$	10,149,589	$	44,030	$	(537,505)	$	9,656,114

Schedule of held-to-maturity for amortized cost and fair values, together with gross unrealized gains and losses of securities

			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Held-to-maturity Debt Securities:
March 31, 2026
Mortgage-backed Government Sponsored Enterprises (GSEs)	$	60,210	$	—	$	(610)	$	59,600
			Gross		Gross
	Amortized		Unrealized		Unrealized		Approximate
	Cost		Gains		Losses		Fair Value
Held-to-maturity Debt Securities:
September 30, 2025
Mortgage-backed Government Sponsored Enterprises (GSEs)	$	67,723	$	—	$	(543)	$	67,180

Schedule of amortized cost and fair value of available-for-sale securities by contractual maturity

	Amortized		Fair
	Cost		Value
March 31, 2026
Within one year	$	—	$	—
One to five years		—		—
Five to ten years		1,330,145		1,307,917
After ten years		5,103,987		4,916,548
		6,434,132		6,224,465
Mortgage-backed GSEs		3,631,260		3,501,574
Totals	$	10,065,392	$	9,726,039

Schedule of gross unrealized losses and fair value of investments with unrealized losses, aggregated by investment class and length of time that individual securities have been in a continuous unrealized loss position

	March 31, 2026
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Debt Securities	Value		Losses		Value		Losses		Value		Losses
Available for sale
U.S. Government agencies	$	617,693	$	(6,307)	$	—	$	—	$	617,693	$	(6,307)
Mortgage-backed Government Sponsored Enterprises (GSEs)		—		—		2,694,576		(162,504)		2,694,576		(162,504)
State and political subdivisions		569,560		(7,450)		2,485,341		(237,242)		3,054,901		(244,692)
	$	1,187,253	$	(13,757)	$	5,179,917	$	(399,746)	$	6,367,170	$	(413,503)
Held to maturity
Mortgage-backed Government Sponsored Enterprises (GSEs)		—	$	—	$	59,600		(610)		59,600		(610)
Total	$	1,187,253	$	(13,757)	$	5,239,517	$	(400,356)	$	6,426,770	$	(414,113)

	September 30, 2025
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Debt Securities	Value		Losses		Value		Losses		Value		Losses
Available for sale
U.S. Government agencies	$	—	$	—	$	1,994,040	$	(5,960)	$	1,994,040	$	(5,960)
Mortgage-backed Government Sponsored Enterprises (GSEs)		560,974		(15,975)		2,418,879		(172,462)		2,979,853		(188,437)
State and political subdivisions		1,414,624		(67,653)		1,931,062		(275,455)		3,345,686		(343,108)
	$	1,975,598	$	(83,628)	$	6,343,981	$	(453,877)	$	8,319,579	$	(537,505)
Held to maturity
Mortgage-backed Government Sponsored Enterprises (GSEs)		—		—		67,180		(543)		67,180		(543)
Total	$	1,975,598	$	(83,628)	$	6,411,161	$	(454,420)	$	8,386,759	$	(538,048)

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Loans and Allowance for Credit Losses (Tables)

6 Months Ended

Mar. 31, 2026

Receivables [Abstract]

Schedule of categories of loans

	March 31,		September 30,
	2026		2025
Real estate loans:
Residential	$	87,860,463	$	78,774,355
Multi-family		1,012,288		1,204,664
Agricultural		37,472,449		46,317,040
Commercial		2,276,659		2,326,429
Construction and land		5,014,490		4,264,994
Home equity line of credit (HELOC)		4,320,535		4,771,614
Commercial and industrial		1,089,499		1,233,406
Consumer		4,393,219		5,085,548
Total loans		143,439,602		143,978,050
Less:
Undisbursed loans in process		433,789		415,915
Net deferred loan fees		294,344		304,570
Allowance for credit losses		866,241		960,307
Net loans	$	141,845,228	$	142,297,258

Schedule of activity in the allowance for loan losses based on portfolio segment

	Three Months Ended March 31, 2026
			Provision
	Balance		(credit)						Balance
	January 1, 2026		for credit losses		Charge-offs		Recoveries		March 31, 2026
Real estate loans:
Residential	$	714,027	$	(40,750)	$	—	$	—	$	673,277
Multi-family		2,379		(354)		—		—		2,025
Agricultural		84,057		(9,112)		—		—		74,945
Commercial		4,588		(35)		—		—		4,553
Construction and land		8,905		1,124		—		—		10,029
Home equity line of credit (HELOC)		14,369		(1,407)		—		—		12,962
Commercial and industrial		2,158		75		—		—		2,233
Consumer		82,887		65,459		(182,315)		120,186		86,217
Allowance for credit losses on loans	$	913,370	$	15,000	$	(182,315)	$	120,186	$	866,241

	Three Months Ended March 31, 2025
			Provision
	Balance		(credit)						Balance
	January 1, 2025		for credit losses		Charge-offs		Recoveries		March 31, 2025
Real estate loans:
Residential	$	664,053	$	(6,655)	$	—	$	—	$	657,398
Multi-family		2,501		(36)		—		—		2,465
Agricultural		112,248		(2,537)		—		—		109,711
Commercial		4,598		(111)		—		—		4,487
Construction and land		81,785		(8,853)		—		—		72,932
Home equity line of credit (HELOC)		14,695		(420)		—		—		14,275
Commercial and industrial		3,358		65		—		—		3,423
Consumer		76,533		46,547		(125,040)		71,227		69,267
Total loans	$	959,771	$	28,000	$	(125,040)	$	71,227	$	933,958

Schedule of credit quality indicators

	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans		Revolving Loans
	For The Years Ending September 30,												Amortized		Converted
	2026		2025		2024		2023		2022		Prior		Cost Basis		to Term		Total
March 31, 2026
Residential real estate
Payment Performance
Performing	$	16,268,460	$	12,461,734	$	6,181,169	$	4,319,691	$	12,003,258	$	36,350,688	$	4,320,535	$	86,761	$	91,992,296
Nonperforming		-		-		-		-		-		188,702		-		-		188,702
Total	$	16,268,460	$	12,461,734	$	6,181,169	$	4,319,691	$	12,003,258	$	36,539,390	$	4,320,535	$	86,761	$	92,180,998
Residential real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Consumer
Payment Performance
Performing	$	504,919	$	1,230,865	$	172,374	$	2,393,935	$	23,218	$	22,761	$	-	$	-	$	4,348,072
Nonperforming		-		-		-		45,147		-		-		-		-		45,147
Total	$	504,919	$	1,230,865	$	172,374	$	2,439,082	$	23,218	$	22,761	$	-	$	-	$	4,393,219
Consumer
Current period gross charge-offs	$	-	$	57,363	$	210,172	$	27,165	$	-	$	-	$	-	$	-	$	294,700
Total
Payment Performance
Performing	$	16,773,379	$	13,692,599	$	6,353,543	$	6,713,626	$	12,026,476	$	36,373,449	$	4,320,535	$	86,761	$	96,340,368
Nonperforming		-		-		-		45,147		-		188,702		-		-		233,849
Total	$	16,773,379	$	13,692,599	$	6,353,543	$	6,758,773	$	12,026,476	$	36,562,151	$	4,320,535	$	86,761	$	96,574,217
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans		Revolving Loans
	For The Years Ending September 30,												Amortized		Converted
	2025		2024		2023		2022		2021		Prior		Cost Basis		to Term		Total
September 30, 2025
Residential real estate
Payment Performance
Performing	$	12,630,915	$	8,140,586	$	5,183,326	$	9,284,260	$	17,417,339	$	25,437,880	$	4,771,614	$	98,177	$	82,964,097
Nonperforming		-		-		-		116,431		259,992		205,449		-		-		581,872
Total	$	12,630,915	$	8,140,586	$	5,183,326	$	9,400,691	$	17,677,331	$	25,643,329	$	4,771,614	$	98,177	$	83,545,969
Residential real estate
Current period gross charge-offs	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Consumer
Payment Performance
Performing	$	1,545,259	$	146,486	$	3,255,323	$	49,261	$	23,431	$	36,588	$	-	$	-	$	5,056,348
Nonperforming		-		26,873		-		2,327		-		-		-		-		29,200
Total	$	1,545,259	$	173,359	$	3,255,323	$	51,588	$	23,431	$	36,588	$	-	$	-	$	5,085,548
Consumer
Current period gross charge-offs	$	156	$	18,040	$	138,992	$	-	$	-	$	-	$	-	$	-	$	157,188
Total
Payment Performance
Performing	$	14,176,174	$	8,287,072	$	8,438,649	$	9,333,521	$	17,440,770	$	25,474,468	$	4,771,614	$	98,177	$	88,020,445
Nonperforming		-		26,873		-		118,758		259,992		205,449		-		-		611,072
Total	$	14,176,174	$	8,313,945	$	8,438,649	$	9,452,279	$	17,700,762	$	25,679,917	$	4,771,614	$	98,177	$	88,631,517

Schedule of loan portfolio aging analysis of the recorded investment in loans

	March 31, 2026
					Greater Than								Total Loans >
	30-59 Days		60-89 Days		90 Days		Total					Total Loans	90 Days &
	Past Due		Past Due		Past Due		Past Due		Current			Receivable	Accruing
Real estate loans:
Residential	$	602,053	$	—	$	124,510	$	726,563	$	87,133,900	$	87,860,463	$	—
Multi-family		—		—		—		—		1,012,288		1,012,288		—
Agricultural		—		—		—		—		37,472,449		37,472,449		—
Commercial		—		—		—		—		2,276,659		2,276,659		—
Construction and land		—		—		44,918		44,918		4,969,572		5,014,490		—
Home equity line of credit (HELOC)		—		—		—		—		4,320,535		4,320,535		—
Commercial and industrial		—		—		—		—		1,089,499		1,089,499		—
Consumer		103,531		—		45,147		148,678		4,244,541		4,393,219		45,147
Total	$	705,584	$	—	$	214,575	$	920,159	$	142,519,443	$	143,439,602	$	45,147

	September 30, 2025
					Greater than								Total Loans>
	30-59 Days		60-89 Days		90 Days		Total				Total Loans		90 Days &
	Past Due		Past Due		Past Due		Past Due		Current		Receivable		Accruing
Real estate loans:
Residential	$	575,867	$	220,713	$	581,873	$	1,378,453	$	77,395,902	$	78,774,355	$	116,431
Multi-family		—		—		—		—		1,204,664		1,204,664		—
Agricultural		—		156,881		690,990		847,871		45,469,169		46,317,040		440,598
Commercial		—		—		—		—		2,326,429		2,326,429		—
Construction and land		—		—		46,695		46,695		4,218,299		4,264,994		46,695
Home equity line of credit (HELOC)		—		—		—		—		4,771,614		4,771,614		—
Commercial and industrial		24,814		—		—		24,814		1,208,592		1,233,406		—
Consumer		21,247		—		29,200		50,447		5,035,101		5,085,548		29,200
Total	$	621,928	$	377,594	$	1,348,758	$	2,348,280	$	141,629,770	$	143,978,050	$	632,924

Schedule of Nonaccrual loans

	Nonaccrual Loans						Loans Past Due
	With No Allowance		With Allowance				Over 90 Days		Total
	for Credit Loss		for Credit Loss		Total		and Still Accruing		Nonperforming
March 31, 2026
Residential real estate loans	$	184,792	$	3,910	$	188,702	$	—	$	188,702
Agricultural		-		—		-		—		-
Consumer		—		—		—		45,147		45,147
	$	184,792	$	3,910	$	188,702	$	45,147	$	233,849
	Nonaccrual Loans						Loans Past Due
	With No Allowance		With Allowance				Over 90 Days		Total
	for Credit Loss		for Credit Loss		Total		and Still Accruing		Nonperforming
September 30, 2025
Residential real estate loans	$	461,488	$	3,953	$	465,441	$	116,431	$	581,872
Construction and land		250,092		—		250,092		440,598		690,690
Commercial and industrial		-		—		-		46,695		46,695
Consumer		-		—		-		29,200		29,200
	$	711,580	$	3,953	$	715,533	$	632,924	$	1,348,457

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Regulatory Matters (Tables)

6 Months Ended

Mar. 31, 2026

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of actual and required capital amounts and ratios

The Bank’s actual and required capital amounts and ratios are as follows (table amounts in thousands):

							To Be Well Capitalized
							Under
							Prompt Corrective
				For Capital Adequacy			Action
	Actual			Purposes			Provisions
	Amount		Ratio	Amount		Ratio	Amount		Ratio
	(Dollars in thousands)
As of March 31, 2026
Total Capital
(to Risk-Weighted Assets)	$	23,663	19.5%	$	9,719	8.0%	$	12,149	10.0%
Tier 1 Capital
(to Risk-Weighted Assets)	$	22,797	18.8%	$	7,289	6.0%	$	9,719	8.0%
Common Equity Tier I Capital
(to Risk-Weighted Assets)	$	22,797	18.8%	$	5,467	4.5%	$	7,897	6.5%
Tier I Capital
(to Average Total Assets)	$	22,797	13.0%	$	7,039	4.0%	$	8,798	5.0%
As of September 30, 2025
Total Capital
(to Risk-Weighted Assets)	$	23,037	17.8%	$	10,342	8.0%	$	12,928	10.0%
Tier 1 Capital
(to Risk-Weighted Assets)	$	22,072	17.1%	$	7,757	6.0%	$	10,342	8.0%
Common Equity Tier I Capital
(to Risk-Weighted Assets)	$	22,072	17.1%	$	5,817	4.5%	$	8,403	6.5%
Tier I Capital
(to Average Total Assets)	$	22,072	12.5%	$	7,047	4.0%	$	8,808	5.0%

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Disclosures about Fair Value of Assets and Liabilities (Tables)

6 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Schedule of fair value measurements of assets measured at fair value on a recurring basis and the level within the fair value hierarchy

			Fair Value Measurements Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for		Observable		Unobservable
	Fair		Identical Assets		Inputs		Inputs
	Value		(Level 1)		(Level 2)		(Level 3)
March 31, 2026
U.S. Government agencies	$	1,112,727	$	—	$	1,112,727	$	—
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,501,574		—		3,501,574		—
State and political subdivisions		5,111,738		—		5,111,738		—
September 30, 2025
U.S. Government agencies	$	2,487,550	$	—	$	2,487,550	$	—
Mortgage-backed Government Sponsored Enterprises (GSEs)		3,822,878		—		3,822,878		—
State and political subdivisions		3,345,686		—		3,345,686		—

Schedule of carrying amount and estimated fair value of financial instruments

	Carrying		Fair		Fair Value Measurements Using
	Value		Value		Level 1		Level 2		Level 3
March 31, 2026
Financial assets:
Cash and cash equivalents	$	5,951,619	$	5,951,619	$	5,951,619	$	—	$	—
Interest-bearing time deposits		100,000		100,000		100,000		—		—
Held-to-maturity debt securities		60,210		59,600		—		59,600		—
Loans held for sale		6,146,205		6,618,000		—		—		6,618,000
Loans, net		141,845,228		135,597,000		—		—		135,597,000
FHLB Stock		921,500		921,500		—		921,500		—
Bank owned life insurance		1,900,697		1,900,697		1,900,697		—		—
Accrued interest receivable		639,336		639,336		639,336		—		—
Financial liabilities:
Deposits		146,554,265		146,653,872		98,543,872		—		48,110,000
FHLB advances		1,000,000		1,000,000		—		1,000,000		—
Accrued interest payable		349,560		349,560		349,560		—		—
September 30, 2025
Financial assets:
Cash and cash equivalents	$	5,363,187	$	5,363,187	$	5,363,187	$	—	$	—
Interest-bearing time deposits		100,000		100,000		100,000		—		—
Held-to-maturity debt securities		67,723		67,180		—		67,180		—
Loans held for sale		8,051,398		8,461,000		—		—		8,461,000
Loans, net		142,297,258		135,944,000		—		—		135,944,000
FHLB Stock		1,208,100		1,208,100		—		1,208,100		—
Bank owned life insurance		1,876,454		1,876,454		1,876,454		—		—
Accrued interest receivable		678,357		678,357		678,357		—		—
Financial liabilities:
Deposits		143,988,029		145,550,412		93,702,412		—		51,848,000
FHLB advances		6,000,000		5,999,999		—		5,999,999		—
Accrued interest payable		319,239		319,239		319,239		—		—

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Commitments and Credit Risks (Tables)

6 Months Ended

Mar. 31, 2026

Commitments and Contingencies Disclosure [Abstract]

Schedule of commitments outstanding

	March 31,		September 30,
	2026		2025
Commitments to originate loans	$	4,863,197	$	2,445,371
Undisbursed balance of loans closed		6,989,053		7,154,955
Total	$	11,852,250	$	9,600,326

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Earnings Per Share (Tables)

6 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted earnings per share

	Three Months Ended		Six Months Ended
	March 31,		March 31,
	2026	2025	2026	2025
Net income	$ 272,139	$ 35,367	$ 443,409	$ 311,675
Weighted-average common shares outstanding, gross	1,020,656	1,018,575	1,023,399	1,020,797
Less unallocated ESOP shares	(65,470)	(70,926)	(68,213)	(73,654)
Weighted-average common shares outstanding	955,186	947,649	955,186	947,143
Basic earnings per share	$ 0.28	$ 0.04	$ 0.45	$ 0.33
Weighted-average common shares outstanding	955,186	947,649	955,186	947,143
Diluted effect of share based compensation	18,656	-	20,552	-
Weighted-average common shares outstanding - Diluted	973,842	947,649	975,738	947,143
Diluted earnings per share	$ 0.28	$ 0.04	$ 0.45	$ 0.33

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Employee Stock Ownership Plan (ESOP) (Tables)

6 Months Ended

Mar. 31, 2026

Retirement Benefits [Abstract]

Schedule of activity in the ESOP

	For the Six Months Ended
	March 31,
	2026	2025
Shares committed to be released to participants	—	—
Shares allocated to participants	16,368	10,912
Unreleased shares	65,470	70,926
ESOP shares at end of plan year	81,838	81,838
Fair value of unreleased shares	$ 1,096,623	$ 992,964

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Share Based Compensation Arrangements (Tables)

6 Months Ended

Mar. 31, 2026

Share-Based Payment Arrangement [Abstract]

Summary of unvested restricted shares

		Weighted-average
		Grant Date
	Shares	Fair Value
Nonvested shares, October 1, 2025	31,504	$ 14.05
Awarded	-	-
Vested	(1,636)	14.20
Forfeited	-	-
Nonvested shares, March 31, 2026	29,868	$ 14.05

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Nature of Operations and Summary of Significant Accounting Policies (Details)		6 Months Ended
	Jul. 26, 2023 USD ($) $ / shares shares	Mar. 31, 2026 USD ($) Office	Sep. 30, 2025 USD ($)
Property, Plant and Equipment [Line Items]
Number of office location | Office		4
Available-for-sale securities, allowance for credit losses		$ 0	$ 0
Accrued interest receivable on available-for-sale debt securities		$ 76,355	$ 86,443
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Interest Receivable	Interest Receivable
Held-to-maturity securities, net of allowance for credit losses		$ 0	$ 0
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Interest Receivable	Interest Receivable
Accrued interest receivable on held-to-maturity debt securities		$ 289	$ 334
Accrued interest receivable on loans		$ 553,559	$ 560,972
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Interest Receivable	Interest Receivable
Mercer Savings Charitable Foundation, Inc.
Property, Plant and Equipment [Line Items]
Amount contributed of the net proceeds from the offering	$ 100,000
Mercer Savings Bank
Property, Plant and Equipment [Line Items]
Percentage of ownership acquired	100.00%
Number of shares offered and sold | shares	972,970
Price per share | $ / shares	$ 10
Gross offering proceeds	$ 9,729,700
Contribution of Nonmonetary Assets to Charitable Organization | Mercer Savings Charitable Foundation, Inc.
Property, Plant and Equipment [Line Items]
Number of shares issued | shares	50,000

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Debt Securities - Available for Sale Debt Securities Fair Value to Amortized Cost (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Debt Securities, Available-for-Sale [Line Items]
Totals	$ 10,065,392	$ 10,149,589
Gross Unrealized Gains	74,150	44,030
Gross Unrealized Losses	(413,503)	(537,505)
Approximate Fair Value	9,726,039	9,656,114
U.S. Government agencies
Debt Securities, Available-for-Sale [Line Items]
Totals	1,101,652	2,476,121
Gross Unrealized Gains	17,382	17,389
Gross Unrealized Losses	(6,307)	(5,960)
Approximate Fair Value	1,112,727	2,487,550
Mortgage-backed Government Sponsored Enterprises (GSEs)
Debt Securities, Available-for-Sale [Line Items]
Totals	3,631,260	3,984,674
Gross Unrealized Gains	32,818	26,641
Gross Unrealized Losses	(162,504)	(188,437)
Approximate Fair Value	3,501,574	3,822,878
State and political subdivisions
Debt Securities, Available-for-Sale [Line Items]
Totals	5,332,480	3,688,794
Gross Unrealized Gains	23,950	0
Gross Unrealized Losses	(244,692)	(343,108)
Approximate Fair Value	$ 5,111,738	$ 3,345,686

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Debt Securities - Held-to-Maturity Fair Value to Amortized Cost (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	$ 60,210	$ 67,723
Mortgage-backed Government Sponsored Enterprises (GSEs)
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	60,210	67,723
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(610)	(543)
Approximate Fair Value	$ 59,600	$ 67,180

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Debt Securities - Amortized Cost and Fair Value of Available-for-Sale Securities by Contractual Maturity (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Available-for-Sale: Amortized Cost
Within one year	$ 0
One to five years	0
Five to ten years	1,330,145
After ten years	5,103,987
Subtotal	6,434,132
Totals	10,065,392	$ 10,149,589
Available-for-Sale: Fair Value
Within one year	0
One to five years	0
Five to ten years	1,307,917
After ten years	4,916,548
Subtotal	6,224,465
Totals	9,726,039	9,656,114
Mortgage-backed Government Sponsored Enterprises (GSEs)
Available-for-Sale: Amortized Cost
Securities not due at a single maturity date	3,631,260
Totals	3,631,260	3,984,674
Available-for-Sale: Fair Value
Securities not due at a single maturity date	3,501,574
Totals	$ 3,501,574	$ 3,822,878

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Debt Securities - Narratives (Details)	3 Months Ended	6 Months Ended		12 Months Ended
	Mar. 31, 2026 USD ($)	Mar. 31, 2026 USD ($) security	Mar. 31, 2025 USD ($)	Sep. 30, 2025 USD ($) security	Dec. 31, 2025 USD ($)
Investments, Debt and Equity Securities [Abstract]
Available-for-sale securities, allowance for credit losses	$ 0	$ 0		$ 0
Carrying value of securities pledged as collateral	$ 1,100,000	$ 1,100,000		$ 1,100,000
Debt Securities, Available-for-Sale, Restriction Type [Extensible Enumeration]	us-gaap:AssetPledgedAsCollateralMember	us-gaap:AssetPledgedAsCollateralMember		us-gaap:AssetPledgedAsCollateralMember
Proceeds from sales of available-for-sale securites	$ 0	$ 2,058,697	$ 0
Gross realized losses		$ 12,000
Number of positions | security		19		25
Total, Fair Value	$ 6,426,770	$ 6,426,770		$ 8,386,759
Percentage of fair value	65.00%	65.00%		86.00%
Held-to-maturity securities, net of allowance for credit losses	$ 0	$ 0		$ 0	$ 0

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Debt Securities - Continuous Unrealized Loss Positions (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Available for sale, Fair Value:
Less than 12 Months, Fair Value	$ 1,187,253	$ 1,975,598
12 Months or More, Fair Value	5,179,917	6,343,981
Total, Fair Value	6,367,170	8,319,579
Available for sale, Unrealized Losses:
Less than 12 Months, Unrealized Losses	(13,757)	(83,628)
12 Months or More, Unrealized Losses	(399,746)	(453,877)
Total, Unrealized Losses	(413,503)	(537,505)
Held to maturity, Unrealized Losses:
Less than 12 Months, Fair Value	1,187,253	1,975,598
12 Months or More, Fair Value	5,239,517	6,411,161
Total, Fair Value	6,426,770	8,386,759
Less than 12 Months, Unrealized Losses	(13,757)	(454,420)
12 Months or More, Unrealized Losses	(400,356)	(83,628)
Total, Unrealized Losses	(414,113)	(538,048)
U.S. Government agencies
Available for sale, Fair Value:
Less than 12 Months, Fair Value	617,693	0
12 Months or More, Fair Value	0	1,994,040
Total, Fair Value	617,693	1,994,040
Available for sale, Unrealized Losses:
Less than 12 Months, Unrealized Losses	(6,307)	0
12 Months or More, Unrealized Losses	0	(5,960)
Total, Unrealized Losses	(6,307)	(5,960)
Mortgage-backed Government Sponsored Enterprises (GSEs)
Available for sale, Fair Value:
Less than 12 Months, Fair Value	0	560,974
12 Months or More, Fair Value	2,694,576	2,418,879
Total, Fair Value	2,694,576	2,979,853
Available for sale, Unrealized Losses:
Less than 12 Months, Unrealized Losses	0	(15,975)
12 Months or More, Unrealized Losses	(162,504)	(172,462)
Total, Unrealized Losses	(162,504)	(188,437)
Held to maturity, Fair Value:
Less than 12 Months, Fair Value	0	0
12 Months or More, Fair Value	59,600	67,180
Total, Fair Value	59,600	67,180
Held to maturity, Unrealized Losses:
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Unrealized Losses	(610)	(543)
Total, Unrealized Losses	(610)	(543)
State and political subdivisions
Available for sale, Fair Value:
Less than 12 Months, Fair Value	569,560	1,414,624
12 Months or More, Fair Value	2,485,341	1,931,062
Total, Fair Value	3,054,901	3,345,686
Available for sale, Unrealized Losses:
Less than 12 Months, Unrealized Losses	(7,450)	(67,653)
12 Months or More, Unrealized Losses	(237,242)	(275,455)
Total, Unrealized Losses	$ (244,692)	$ (343,108)

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Loans and Allowance for Credit Losses - Categories of Loans (Details) - USD ($)	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024
Categories of loans
Total loans	$ 143,439,602		$ 143,978,050
Undisbursed loans in process	433,789		415,915
Net deferred loan fees	294,344		304,570
Allowance for credit losses	866,241	$ 913,370	960,307	$ 933,958	$ 959,771	$ 963,268
Net loans	141,845,228		142,297,258
Real estate loan
Categories of loans
Total loans	92,180,998		83,545,969
Real estate loan | Residential
Categories of loans
Total loans	87,860,463		78,774,355
Allowance for credit losses	673,277	714,027	745,709	657,398	664,053	691,852
Real estate loan | Multi-family
Categories of loans
Total loans	1,012,288		1,204,664
Allowance for credit losses	2,025	2,379	2,409	2,465	2,501	2,525
Real estate loan | Agricultural
Categories of loans
Total loans	37,472,449		46,317,040
Allowance for credit losses	74,945	84,057	92,634	109,711	112,248	107,284
Real estate loan | Commercial
Categories of loans
Total loans	2,276,659		2,326,429
Allowance for credit losses	4,553	4,588	4,653	4,487	4,598	4,917
Real estate loan | Construction and land
Categories of loans
Total loans	5,014,490		4,264,994
Allowance for credit losses	10,029	8,905	8,530	72,932	81,785	92,660
Real estate loan | Home equity line of credit (HELOC)
Categories of loans
Total loans	4,320,535		4,771,614
Allowance for credit losses	12,962	14,369	14,315	14,275	14,695	14,910
Commercial and industrial
Categories of loans
Total loans	1,089,499		1,233,406
Allowance for credit losses	2,233	2,158	2,453	3,423	3,358	3,314
Consumer
Categories of loans
Total loans	4,393,219		5,085,548
Allowance for credit losses	$ 86,217	$ 82,887	$ 89,604	$ 69,267	$ 76,533	$ 45,806

XML

Loans and Allowance for Credit Losses - Narratives (Details) - USD ($)	6 Months Ended	12 Months Ended
	Mar. 31, 2026	Sep. 30, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balances	$ 141,845,228	$ 142,297,258
Servicing asset	106,000	111,000
Individually Evaluated	639,000	1,600,000
Collateral dependent loans	0	0
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal balances	$ 15,600,000	$ 16,400,000

XML

Loans and Allowance for Credit Losses - Allowance for loan losses (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2025
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	$ 913,370	$ 959,771	$ 960,307	$ 963,268	$ 963,268
Provision (credit) for credit losses	15,000	28,000	15,000	28,000
Charge-offs	(182,315)	(125,040)	(294,700)	(129,452)
Recoveries	120,186	71,227	185,634	72,142
Balance at end	866,241	933,958	866,241	933,958	960,307
Real estate loan
Activity in the allowance for loan losses based on portfolio segment
Charge-offs			0		0
Real estate loan | Residential
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	714,027	664,053	745,709	691,852	691,852
Provision (credit) for credit losses	(40,750)	(6,655)	(72,432)	(34,454)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance at end	673,277	657,398	673,277	657,398	745,709
Real estate loan | Multi-family
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	2,379	2,501	2,409	2,525	2,525
Provision (credit) for credit losses	(354)	(36)	(384)	(60)
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance at end	2,025	2,465	2,025	2,465	2,409
Real estate loan | Agricultural
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	84,057	112,248	92,634	107,284	107,284
Provision (credit) for credit losses	(9,112)	(2,537)	(17,689)	2,427
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance at end	74,945	109,711	74,945	109,711	92,634
Real estate loan | Commercial
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	4,588	4,598	4,653	4,917	4,917
Provision (credit) for credit losses	(35)	(111)	(100)	(430)
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance at end	4,553	4,487	4,553	4,487	4,653
Real estate loan | Construction and land
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	8,905	81,785	8,530	92,660	92,660
Provision (credit) for credit losses	1,124	(8,853)	1,499	(19,728)
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance at end	10,029	72,932	10,029	72,932	8,530
Real estate loan | Home equity line of credit (HELOC)
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	14,369	14,695	14,315	14,910	14,910
Provision (credit) for credit losses	(1,407)	(420)	(1,353)	(635)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance at end	12,962	14,275	12,962	14,275	14,315
Commercial and industrial
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	2,158	3,358	2,453	3,314	3,314
Provision (credit) for credit losses	75	65	(220)	109
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance at end	2,233	3,423	2,233	3,423	2,453
Consumer
Activity in the allowance for loan losses based on portfolio segment
Balance at beginning	82,887	76,533	89,604	45,806	45,806
Provision (credit) for credit losses	65,459	46,547	105,679	80,771
Charge-offs	(182,315)	(125,040)	(294,700)	(129,452)	(157,188)
Recoveries	120,186	71,227	185,634	72,142
Balance at end	$ 86,217	$ 69,267	$ 86,217	$ 69,267	$ 89,604

XML

Loans and Allowance for Credit Losses - Credit Quality Indicators for Other than Residential Real Estate Loans by Class (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2025
Term Loans Amortized Costs Basis by Origination Year
Total loans	$ 143,439,602		$ 143,439,602		$ 143,978,050
Current period gross charge-offs
Total, Current period gross charge-offs	182,315	$ 125,040	294,700	$ 129,452
Other than residential real estate loans
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	2,024,687		2,024,687		2,009,159
2025/2024, Loans	3,665,211		3,665,211		19,403,198
2024/2023, Loans	14,032,750		14,032,750		10,785,543
2023/2022, Loans	8,292,600		8,292,600		9,588,581
2022/2021, Loans	8,995,303		8,995,303		5,361,757
Prior, Loans	9,066,552		9,066,552		7,346,505
Cost Basis, Loans	788,282		788,282		851,790
Revolving Loans Converted to Term, Loans					0
Total loans	46,865,385		46,865,385		55,346,533
Other than residential real estate loans | Pass
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	2,024,687		2,024,687		2,009,159
2025/2024, Loans	3,665,211		3,665,211		19,403,198
2024/2023, Loans	14,032,750		14,032,750		10,492,312
2023/2022, Loans	8,292,600		8,292,600		9,338,489
2022/2021, Loans	8,995,303		8,995,303		5,361,757
Prior, Loans	9,066,552		9,066,552		7,152,444
Cost Basis, Loans	788,282		788,282		851,790
Revolving Loans Converted to Term, Loans					0
Total loans	46,865,385		46,865,385		54,609,149
Other than residential real estate loans | Special Mention
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Other than residential real estate loans | Substandard
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		293,231
2023/2022, Loans	0		0		250,092
2022/2021, Loans	0		0		0
Prior, Loans	0		0		194,061
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		737,384
Other than residential real estate loans | Doubtful
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	16,268,460		16,268,460		12,630,915
2025/2024, Loans	12,461,734		12,461,734		8,140,586
2024/2023, Loans	6,181,169		6,181,169		5,183,326
2023/2022, Loans	4,319,691		4,319,691		9,400,691
2022/2021, Loans	12,003,258		12,003,258		17,677,331
Prior, Loans	36,539,390		36,539,390		25,643,329
Cost Basis, Loans	4,320,535		4,320,535		4,771,614
Revolving Loans Converted to Term, Loans	86,761		86,761		98,177
Total loans	92,180,998		92,180,998		83,545,969
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs			0		0
Total, Current period gross charge-offs			0		0
Real estate loan | Commercial
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		190,000
2025/2024, Loans	189,317		189,317		369,645
2024/2023, Loans	367,869		367,869		0
2023/2022, Loans	0		0		731,021
2022/2021, Loans	721,976		721,976		905,151
Prior, Loans	997,497		997,497		130,612
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	2,276,659		2,276,659		2,326,429
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs					0
Total, Current period gross charge-offs	0	0	0	0	0
Real estate loan | Commercial | Pass
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		190,000
2025/2024, Loans	189,317		189,317		369,645
2024/2023, Loans	367,869		367,869		0
2023/2022, Loans	0		0		731,021
2022/2021, Loans	721,976		721,976		905,151
Prior, Loans	997,497		997,497		130,612
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	2,276,659		2,276,659		2,326,429
Real estate loan | Commercial | Special Mention
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Commercial | Substandard
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Commercial | Doubtful
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Construction and land
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	2,024,687		2,024,687		918,152
2025/2024, Loans	1,066,136		1,066,136		3,176,710
2024/2023, Loans	1,764,494		1,764,494		0
2023/2022, Loans	23,418		23,418		87,960
2022/2021, Loans	61,688		61,688		13,578
Prior, Loans	74,067		74,067		68,594
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	5,014,490		5,014,490		4,264,994
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs					0
Total, Current period gross charge-offs	0	0	0	0	0
Real estate loan | Construction and land | Pass
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	2,024,687		2,024,687		918,152
2025/2024, Loans	1,066,136		1,066,136		3,176,710
2024/2023, Loans	1,764,494		1,764,494		0
2023/2022, Loans	23,418		23,418		87,960
2022/2021, Loans	61,688		61,688		13,578
Prior, Loans	74,067		74,067		21,899
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	5,014,490		5,014,490		4,218,299
Real estate loan | Construction and land | Special Mention
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Construction and land | Substandard
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		46,695
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		46,695
Real estate loan | Construction and land | Doubtful
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Multi-family
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		929,569
2022/2021, Loans	915,880		915,880		0
Prior, Loans	96,408		96,408		275,095
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	1,012,288		1,012,288		1,204,664
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs					0
Total, Current period gross charge-offs	0	0	0	0	0
Real estate loan | Multi-family | Pass
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		929,569
2022/2021, Loans	915,880		915,880		0
Prior, Loans	96,408		96,408		275,095
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	1,012,288		1,012,288		1,204,664
Real estate loan | Multi-family | Special Mention
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Multi-family | Substandard
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Multi-family | Doubtful
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Agricultural
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		901,007
2025/2024, Loans	2,409,758		2,409,758		15,856,843
2024/2023, Loans	11,900,387		11,900,387		10,785,543
2023/2022, Loans	8,269,182		8,269,182		7,840,031
2022/2021, Loans	7,295,759		7,295,759		4,318,434
Prior, Loans	7,597,363		7,597,363		6,615,182
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	37,472,449		37,472,449		46,317,040
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs					0
Total, Current period gross charge-offs	0	0	0	0	0
Real estate loan | Agricultural | Pass
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		901,007
2025/2024, Loans	2,409,758		2,409,758		15,856,843
2024/2023, Loans	11,900,387		11,900,387		10,492,312
2023/2022, Loans	8,269,182		8,269,182		7,589,939
2022/2021, Loans	7,295,759		7,295,759		4,318,434
Prior, Loans	7,597,363		7,597,363		6,467,816
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	37,472,449		37,472,449		45,626,351
Real estate loan | Agricultural | Special Mention
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Real estate loan | Agricultural | Substandard
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		293,231
2023/2022, Loans	0		0		250,092
2022/2021, Loans	0		0		0
Prior, Loans	0		0		147,366
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		690,689
Real estate loan | Agricultural | Doubtful
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Commercial and industrial
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		124,594
Prior, Loans	301,217		301,217		257,022
Cost Basis, Loans	788,282		788,282		851,790
Revolving Loans Converted to Term, Loans					0
Total loans	1,089,499		1,089,499		1,233,406
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs					0
Total, Current period gross charge-offs	0	$ 0	0	$ 0	0
Commercial and industrial | Pass
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		124,594
Prior, Loans	301,217		301,217		257,022
Cost Basis, Loans	788,282		788,282		851,790
Revolving Loans Converted to Term, Loans					0
Total loans	1,089,499		1,089,499		1,233,406
Commercial and industrial | Special Mention
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Commercial and industrial | Substandard
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	0		0		0
Commercial and industrial | Doubtful
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		0
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans					0
Total loans	$ 0		$ 0		$ 0

XML

Loans and Allowance for Credit Losses - Amortized Cost in Residential and Consumer Loans Based on Payment Activity (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2025
Term Loans Amortized Costs Basis by Origination Year
Total loans	$ 143,439,602		$ 143,439,602		$ 143,978,050
Current period gross charge-offs
Total, Current period gross charge-offs	182,315	$ 125,040	294,700	$ 129,452
Residential and consumer loans
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	16,773,379		16,773,379		14,176,174
2025/2024, Loans	13,692,599		13,692,599		8,313,945
2024/2023, Loans	6,353,543		6,353,543		8,438,649
2023/2022, Loans	6,758,773		6,758,773		9,452,279
2022/2021, Loans	12,026,476		12,026,476		17,700,762
Prior, Loans	36,562,151		36,562,151		25,679,917
Cost Basis, Loans	4,320,535		4,320,535		4,771,614
Revolving Loans Converted to Term, Loans	86,761		86,761		98,177
Total loans	96,574,217		96,574,217		88,631,517
Residential and consumer loans | Performing
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	16,773,379		16,773,379		14,176,174
2025/2024, Loans	13,692,599		13,692,599		8,287,072
2024/2023, Loans	6,353,543		6,353,543		8,438,649
2023/2022, Loans	6,713,626		6,713,626		9,333,521
2022/2021, Loans	12,026,476		12,026,476		17,440,770
Prior, Loans	36,373,449		36,373,449		25,474,468
Cost Basis, Loans	4,320,535		4,320,535		4,771,614
Revolving Loans Converted to Term, Loans	86,761		86,761		98,177
Total loans	96,340,368		96,340,368		88,020,445
Residential and consumer loans | Nonperforming
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		26,873
2024/2023, Loans	0		0		0
2023/2022, Loans	45,147		45,147		118,758
2022/2021, Loans	0		0		259,992
Prior, Loans	188,702		188,702		205,449
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans	0		0		0
Total loans	233,849		233,849		611,072
Real estate loan
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	16,268,460		16,268,460		12,630,915
2025/2024, Loans	12,461,734		12,461,734		8,140,586
2024/2023, Loans	6,181,169		6,181,169		5,183,326
2023/2022, Loans	4,319,691		4,319,691		9,400,691
2022/2021, Loans	12,003,258		12,003,258		17,677,331
Prior, Loans	36,539,390		36,539,390		25,643,329
Cost Basis, Loans	4,320,535		4,320,535		4,771,614
Revolving Loans Converted to Term, Loans	86,761		86,761		98,177
Total loans	92,180,998		92,180,998		83,545,969
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		0
2025/2024, Current period gross charge-offs			0		0
2024/2023, Current period gross charge-offs			0		0
2023/2022, Current period gross charge-offs			0		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs			0		0
Total, Current period gross charge-offs			0		0
Real estate loan | Performing
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	16,268,460		16,268,460		12,630,915
2025/2024, Loans	12,461,734		12,461,734		8,140,586
2024/2023, Loans	6,181,169		6,181,169		5,183,326
2023/2022, Loans	4,319,691		4,319,691		9,284,260
2022/2021, Loans	12,003,258		12,003,258		17,417,339
Prior, Loans	36,350,688		36,350,688		25,437,880
Cost Basis, Loans	4,320,535		4,320,535		4,771,614
Revolving Loans Converted to Term, Loans	86,761		86,761		98,177
Total loans	91,992,296		91,992,296		82,964,097
Real estate loan | Nonperforming
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		0
2024/2023, Loans	0		0		0
2023/2022, Loans	0		0		116,431
2022/2021, Loans	0		0		259,992
Prior, Loans	188,702		188,702		205,449
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans	0		0		0
Total loans	188,702		188,702		581,872
Real estate loan | Residential
Term Loans Amortized Costs Basis by Origination Year
Total loans	87,860,463		87,860,463		78,774,355
Current period gross charge-offs
Total, Current period gross charge-offs	0	0	0	0
Consumer
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	504,919		504,919		1,545,259
2025/2024, Loans	1,230,865		1,230,865		173,359
2024/2023, Loans	172,374		172,374		3,255,323
2023/2022, Loans	2,439,082		2,439,082		51,588
2022/2021, Loans	23,218		23,218		23,431
Prior, Loans	22,761		22,761		36,588
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans	0		0		0
Total loans	4,393,219		4,393,219		5,085,548
Current period gross charge-offs
2026/2025, Current period gross charge-offs			0		156
2025/2024, Current period gross charge-offs			57,363		18,040
2024/2023, Current period gross charge-offs			210,172		138,992
2023/2022, Current period gross charge-offs			27,165		0
2022/2021, Current period gross charge-offs			0		0
Prior, Current period gross charge-offs			0		0
Cost Basis, Current period gross charge-offs			0		0
Revolving Loans Converted to Term, Current period gross charge-offs			0		0
Total, Current period gross charge-offs	182,315	$ 125,040	294,700	$ 129,452	157,188
Consumer | Performing
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	504,919		504,919		1,545,259
2025/2024, Loans	1,230,865		1,230,865		146,486
2024/2023, Loans	172,374		172,374		3,255,323
2023/2022, Loans	2,393,935		2,393,935		49,261
2022/2021, Loans	23,218		23,218		23,431
Prior, Loans	22,761		22,761		36,588
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans	0		0		0
Total loans	4,348,072		4,348,072		5,056,348
Consumer | Nonperforming
Term Loans Amortized Costs Basis by Origination Year
2026/2025, Loans	0		0		0
2025/2024, Loans	0		0		26,873
2024/2023, Loans	0		0		0
2023/2022, Loans	45,147		45,147		2,327
2022/2021, Loans	0		0		0
Prior, Loans	0		0		0
Cost Basis, Loans	0		0		0
Revolving Loans Converted to Term, Loans	0		0		0
Total loans	$ 45,147		$ 45,147		$ 29,200

XML

Loans and Allowance for Credit Losses - Aging Analysis (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Financing Receivable, Past Due [Line Items]
Total loans	$ 143,439,602	$ 143,978,050
Total Loans >90 Days & Accruing	45,147	632,924
Collateral dependent
Financing Receivable, Past Due [Line Items]
Total loans	0	0
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	705,584	621,928
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	377,594
Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	214,575	1,348,758
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	920,159	2,348,280
Current
Financing Receivable, Past Due [Line Items]
Total loans	142,519,443	141,629,770
Real estate loan
Financing Receivable, Past Due [Line Items]
Total loans	92,180,998	83,545,969
Real estate loan | Residential
Financing Receivable, Past Due [Line Items]
Total loans	87,860,463	78,774,355
Total Loans >90 Days & Accruing	0	116,431
Real estate loan | Residential | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	602,053	575,867
Real estate loan | Residential | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	220,713
Real estate loan | Residential | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	124,510	581,873
Real estate loan | Residential | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	726,563	1,378,453
Real estate loan | Residential | Current
Financing Receivable, Past Due [Line Items]
Total loans	87,133,900	77,395,902
Real estate loan | Multi-family
Financing Receivable, Past Due [Line Items]
Total loans	1,012,288	1,204,664
Total Loans >90 Days & Accruing	0	0
Real estate loan | Multi-family | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Multi-family | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Multi-family | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Multi-family | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Multi-family | Current
Financing Receivable, Past Due [Line Items]
Total loans	1,012,288	1,204,664
Real estate loan | Agricultural
Financing Receivable, Past Due [Line Items]
Total loans	37,472,449	46,317,040
Total Loans >90 Days & Accruing	0	440,598
Real estate loan | Agricultural | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Agricultural | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	156,881
Real estate loan | Agricultural | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	690,990
Real estate loan | Agricultural | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	847,871
Real estate loan | Agricultural | Current
Financing Receivable, Past Due [Line Items]
Total loans	37,472,449	45,469,169
Real estate loan | Commercial
Financing Receivable, Past Due [Line Items]
Total loans	2,276,659	2,326,429
Total Loans >90 Days & Accruing	0	0
Real estate loan | Commercial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Commercial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Commercial | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Commercial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Commercial | Current
Financing Receivable, Past Due [Line Items]
Total loans	2,276,659	2,326,429
Real estate loan | Construction and land
Financing Receivable, Past Due [Line Items]
Total loans	5,014,490	4,264,994
Total Loans >90 Days & Accruing	0	46,695
Real estate loan | Construction and land | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Construction and land | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Construction and land | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	44,918	46,695
Real estate loan | Construction and land | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	44,918	46,695
Real estate loan | Construction and land | Current
Financing Receivable, Past Due [Line Items]
Total loans	4,969,572	4,218,299
Real estate loan | Home equity line of credit (HELOC)
Financing Receivable, Past Due [Line Items]
Total loans	4,320,535	4,771,614
Total Loans >90 Days & Accruing	0	0
Real estate loan | Home equity line of credit (HELOC) | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Home equity line of credit (HELOC) | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Home equity line of credit (HELOC) | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Home equity line of credit (HELOC) | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Real estate loan | Home equity line of credit (HELOC) | Current
Financing Receivable, Past Due [Line Items]
Total loans	4,320,535	4,771,614
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	1,089,499	1,233,406
Total Loans >90 Days & Accruing	0	0
Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	24,814
Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	24,814
Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Total loans	1,089,499	1,208,592
Consumer
Financing Receivable, Past Due [Line Items]
Total loans	4,393,219	5,085,548
Total Loans >90 Days & Accruing	45,147	29,200
Consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	103,531	21,247
Consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Consumer | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	45,147	29,200
Consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	148,678	50,447
Consumer | Current
Financing Receivable, Past Due [Line Items]
Total loans	$ 4,244,541	$ 5,035,101

XML

Loans and Allowance for Credit Losses - Nonaccrual Loans (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	$ 45,147	$ 632,924
Performing
Financing Receivable, Past Due [Line Items]
Nonaccrual loans no allowance	184,792	711,580
Nonaccrual loans allowance	3,910	3,953
Nonaccrual loans	188,702	715,533
Nonperforming
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	45,147	632,924
Total Nonperforming	233,849	1,348,457
Real estate loan | Residential
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0	116,431
Real estate loan | Residential | Performing
Financing Receivable, Past Due [Line Items]
Nonaccrual loans no allowance	184,792	461,488
Nonaccrual loans allowance	3,910	3,953
Nonaccrual loans	188,702	465,441
Real estate loan | Residential | Nonperforming
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0	116,431
Total Nonperforming	188,702	581,872
Real estate loan | Agricultural
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0	440,598
Real estate loan | Agricultural | Performing
Financing Receivable, Past Due [Line Items]
Nonaccrual loans no allowance	0
Nonaccrual loans allowance	0
Nonaccrual loans	0
Real estate loan | Agricultural | Nonperforming
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0
Total Nonperforming	0
Real estate loan | Construction and land
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0	46,695
Real estate loan | Construction and land | Performing
Financing Receivable, Past Due [Line Items]
Nonaccrual loans no allowance		250,092
Nonaccrual loans allowance		0
Nonaccrual loans		250,092
Real estate loan | Construction and land | Nonperforming
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing		440,598
Total Nonperforming		690,690
Real estate loan | Home equity line of credit
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0	0
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	0	0
Commercial and industrial | Commercial and industrial | Performing
Financing Receivable, Past Due [Line Items]
Nonaccrual loans no allowance		0
Nonaccrual loans allowance		0
Nonaccrual loans		0
Commercial and industrial | Commercial and industrial | Nonperforming
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing		46,695
Total Nonperforming		46,695
Consumer
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	45,147	29,200
Consumer | Performing
Financing Receivable, Past Due [Line Items]
Nonaccrual loans no allowance	0	0
Nonaccrual loans allowance	0	0
Nonaccrual loans	0	0
Consumer | Nonperforming
Financing Receivable, Past Due [Line Items]
Total Loans >90 Days & Accruing	45,147	29,200
Total Nonperforming	$ 45,147	$ 29,200

XML

Loans and Allowance for Credit Losses - Loans Modification (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2025
Receivables [Abstract]
Loans modified	$ 0	$ 0	$ 0
Loans modified in the past 12 months that subsequently defaulted	$ 0	$ 0	$ 0

XML

Regulatory Matters (Details) $ in Thousands	Mar. 31, 2026 USD ($)	Sep. 30, 2025 USD ($)
Total Capital (to Risk-Weighted Assets)
Total Capital (to Risk-Weighted Assets), Actual, Amount	$ 23,663	$ 23,037
Total Capital (to Risk-Weighted Assets), Actual, Ratio (as a percent)	0.195	0.178
Total Capital, Amount Required for Capital Adequacy Purposes, Amount	$ 9,719	$ 10,342
Total Capital, Amount Required for Capital Adequacy Purposes, Ratio (as a percent)	0.08	0.08
Total capital, Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 12,149	$ 12,928
Total capital, Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	0.10	0.10
Tier I Capital (to Risk-Weighted Assets)
Tier I Capital (to Risk-Weighted Assets), Actual, Amount	$ 22,797	$ 22,072
Tier I Capital (to Risk-Weighted Assets), Actual, Ratio (as a percent)	0.188	0.171
Tier I Capital, Amount Required for Capital Adequacy Purposes, Amount	$ 7,289	$ 7,757
Tier I Capital, Amount Required for Capital Adequacy Purposes, Ratio (as a percent)	0.06	0.06
Tier I Capital, Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 9,719	$ 10,342
Tier I Capital, Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	0.08	0.08
Common Equity Tier I Capital (to Risk-Weighted Assets)
Common Equity Tier I Capital (to Risk-Weighted Assets), Actual, Amount	$ 22,797	$ 22,072
Common Equity Tier I Capital (to Risk-Weighted Assets), Actual, Ratio (as a percent)	0.188	0.171
Common Equity Tier I Capital, Amount Required for Capital Adequacy Purposes, Amount	$ 5,467	$ 5,817
Common Equity Tier I Capital, Amount Required for Capital Adequacy Purposes, Ratio (as a percent)	0.045	0.045
Common Equity Tier I Capital, Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 7,897	$ 8,403
Common Equity Tier I Capital, Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	0.065	0.065
Tier 1 Capital (Average Total Assets)
Tier 1 Capital (Average Total Assets), Actual, Amount	$ 22,797	$ 22,072
Tier 1 Capital (Average Total Assets), Actual, Ratio (as a percent)	0.13	0.125
Tier 1 Capital (Average Total Assets), Amount Required for Capital Adequacy Purposes, Amount	$ 7,039	$ 7,047
Tier 1 Capital (Average Total Assets), Amount Required for Capital Adequacy Purposes, Ratio (as a percent)	0.04	0.04
Tier 1 Capital (Average Total Assets), Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 8,798	$ 8,808
Tier 1 Capital (Average Total Assets), Amount Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	0.05	0.05

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Disclosures about Fair Value of Assets and Liabilities - Assets Measured at Fair Value (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	$ 9,726,039	$ 9,656,114
U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	1,112,727	2,487,550
Mortgage-backed Government Sponsored Enterprises (GSEs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	3,501,574	3,822,878
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	5,111,738	3,345,686
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities measured at fair value	0	0
Recurring | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	1,112,727	2,487,550
Recurring | Mortgage-backed Government Sponsored Enterprises (GSEs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	3,501,574	3,822,878
Recurring | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	5,111,738	3,345,686
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed Government Sponsored Enterprises (GSEs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0
Recurring | Significant Other Observable Inputs (Level 2) | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	1,112,727	2,487,550
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed Government Sponsored Enterprises (GSEs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	3,501,574	3,822,878
Recurring | Significant Other Observable Inputs (Level 2) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	5,111,738	3,345,686
Recurring | Significant Unobservable Inputs (Level 3) | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed Government Sponsored Enterprises (GSEs)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value	0	0
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities measured at fair value	0	0
Assets measured at fair value	$ 0	$ 0

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Disclosures about Fair Value of Assets and Liabilities - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Financial assets:
Held-to-maturity securities, at amortized cost	$ 60,210	$ 67,723
Bank owned life insurance	1,900,697	1,876,454
Recurring | Reported Value Measurement
Financial assets:
Cash and cash equivalents	5,951,619	5,363,187
Interest-bearing time deposits	100,000	100,000
Held-to-maturity securities, at amortized cost	60,210	67,723
Loans held for sale	6,146,205	8,051,398
Loans, net	141,845,228	142,297,258
FHLB Stock	921,500	1,208,100
Bank owned life insurance	1,900,697	1,876,454
Accrued interest receivable	639,336	678,357
Financial liabilities:
Deposits	146,554,265	143,988,029
FHLB advances		6,000,000
Accrued interest payable	349,560	319,239
Recurring | Reported Value Measurement | FHLB advances - short term
Financial liabilities:
FHLB advances	1,000,000
Recurring | Estimate of Fair Value Measurement
Financial assets:
Cash and cash equivalents	5,951,619	5,363,187
Interest-bearing time deposits	100,000	100,000
Held-to-maturity securities, at amortized cost	59,600	67,180
Loans held for sale	6,618,000	8,461,000
Loans, net	135,597,000	135,944,000
FHLB Stock	921,500	1,208,100
Bank owned life insurance	1,900,697	1,876,454
Accrued interest receivable	639,336	678,357
Financial liabilities:
Deposits	146,653,872	145,550,412
FHLB advances		5,999,999
Accrued interest payable	349,560	319,239
Recurring | Estimate of Fair Value Measurement | FHLB advances - short term
Financial liabilities:
FHLB advances	1,000,000
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	5,951,619	5,363,187
Interest-bearing time deposits	100,000	100,000
Held-to-maturity securities, at amortized cost	0	0
Loans held for sale	0	0
Loans, net	0	0
FHLB Stock	0	0
Bank owned life insurance	1,900,697	1,876,454
Accrued interest receivable	639,336	678,357
Financial liabilities:
Deposits	98,543,872	93,702,412
FHLB advances		0
Accrued interest payable	349,560	319,239
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | FHLB advances - short term
Financial liabilities:
FHLB advances	0
Recurring | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing time deposits	0	0
Held-to-maturity securities, at amortized cost	59,600	67,180
Loans held for sale	0	0
Loans, net	0	0
FHLB Stock	921,500	1,208,100
Bank owned life insurance	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	0	0
FHLB advances		5,999,999
Accrued interest payable	0	0
Recurring | Significant Other Observable Inputs (Level 2) | FHLB advances - short term
Financial liabilities:
FHLB advances	1,000,000
Recurring | Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing time deposits	0	0
Held-to-maturity securities, at amortized cost	0	0
Loans held for sale	6,618,000	8,461,000
Loans, net	135,597,000	135,944,000
FHLB Stock	0	0
Bank owned life insurance	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	48,110,000	51,848,000
FHLB advances		0
Accrued interest payable	0	$ 0
Recurring | Significant Unobservable Inputs (Level 3) | FHLB advances - short term
Financial liabilities:
FHLB advances	$ 0

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Commitments and Credit Risks (Details) - USD ($)	Mar. 31, 2026	Sep. 30, 2025
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Commitments outstanding	$ 11,852,250	$ 9,600,326
Off balance sheet allowance for credit losses	5,000	5,000
Commitments to originate loans
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Commitments outstanding	4,863,197	2,445,371
Undisbursed balance of loans closed
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Commitments outstanding	$ 6,989,053	$ 7,154,955

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Earnings Per Share - (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Earnings Per Share [Abstract]
Net income	$ 272,139	$ 35,367	$ 443,409	$ 311,675
Weighted-average common shares outstanding, gross	1,020,656	1,018,575	1,023,399	1,020,797
Less unallocated ESOP shares	(65,470)	(70,926)	(68,213)	(73,654)
Weighted-average shares outstanding, basic	955,186	947,649	955,186	947,143
Earnings per share - basic	$ 0.28	$ 0.04	$ 0.45	$ 0.33
Diluted effect of share based compensation	18,656	0	20,552	0
Weighted-average shares outstanding, diluted	973,842	947,649	975,738	947,143
Earnings per share - diluted	$ 0.28	$ 0.04	$ 0.45	$ 0.33

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Employee Stock Ownership Plan (ESOP) - Employee Stock Ownership Plan (ESOP) (Details) - USD ($)	1 Months Ended	6 Months Ended
	Jul. 31, 2023	Mar. 31, 2026	Mar. 31, 2025
Retirement Benefits [Abstract]
Number of shares in ESOP	81,838
Purchase price of shares held in ESOP (in dollars per share)	$ 10
ESOP loan description		financed by the 15-year term loan with the Company. The interest rate of the loan is 8.50% and the maturity date is December 31, 2037. The loan is secured by shares purchased with the loan proceeds and will be repaid by the ESOP with funds from the Bank’s discretionary contributions to the ESOP
ESOP loan term	15 years
ESOP loan interest rate	8.50%
ESOP compensation expense		$ 86,300	$ 68,538

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Employee Stock Ownership Plan (ESOP) - Activity in the ESOP (Details) - USD ($)	6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Retirement Benefits [Abstract]
Shares committed to be released to participants	0	0
Shares allocated to participants	16,368	10,912
Unreleased shares	65,470	70,926
ESOP shares at end of plan year	81,838	81,838
Fair value of unreleased shares	$ 1,096,623	$ 992,964

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Share Based Compensation Arrangements (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2026	Mar. 31, 2026	Feb. 28, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares authorized for issuance			143,215
Share-based compensation expense		$ 39,000
Restricted shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares authorized for issuance			40,918
Share-based compensation expense	$ 22,000	44,000
Employee Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares authorized for issuance			102,297
Unrecognized compensation cost	665,000	$ 665,000
Weighted-average period		3 years 10 months 24 days
Share-based compensation expense	$ 20,000

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Share Based Compensation Arrangements - Summary of unvested restricted shares (Details) - Restricted shares	6 Months Ended
	Mar. 31, 2026 $ / shares shares
Shares
Nonvested, Beginning balance, Shares | shares	31,504
Awarded, Shares | shares	0
Vested, Shares | shares	(1,636)
Forfeited, Shares | shares	0
Nonvested, Ending balance, Shares | shares	29,868
Weighted-average Grant Date Fair Value
Nonvested, Beginning balance, Weighted-average grant date fair value | $ / shares	$ 14.05
Awarded, Weighted-average grant date fair value | $ / shares	0
Vested, Weighted-average grant date fair value | $ / shares	14.2
Forfeited, Weighted-average grant date fair value | $ / shares	0
Nonvested, Ending balance, Weighted-average grant date fair value | $ / shares	$ 14.05

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Share Based Compensation Arrangements - Summary of stock option activity (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Sep. 30, 2026
Shares
Forfeited, Shares	0
Outstanding, end of period, Shares	81,634	81,634
Shares exercisable, end of period	4,091
Weighted-average Exercise Price
Forfeited, Weighted-average exercise price	$ 0
Outstanding, end of period, Weighted-average exercise price	14.06	$ 14.06
Shares exercisable, end of period, Weighted-average exercise price	$ 14.2
Weighted-Average Remaining Contractual Term and Aggregate Intrinsic Value
Outstanding, Weighted-average remaining contractual term (Years)	8 years 11 months 23 days	9 years 2 months 23 days
Outstanding, end of period, Aggregate intrinsic value	$ 219,829	$ 117,786