8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

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

Date of Report (Date of Earliest Event Reported): April 23, 2026

WEST BANCORPORATION, INC.

(Exact name of registrant as specified in its charter)

Iowa	0-49677	42-1230603
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

3330 Westown Parkway, West Des Moines, Iowa 50266

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: 515-222-2300

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered or to be registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, no par value	WTBA	The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company o

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. o

Item 2.02 Results of Operations and Financial Condition.

On April 23, 2026, West Bancorporation, Inc. (the "Company") issued a press release announcing its first quarter earnings results for the period ended March 31, 2026, and the declaration of a quarterly dividend. A copy of the press release is attached hereto as Exhibit 99.1.

The information furnished in this item of this Form 8-K, and the related exhibit, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the "Securities Act"), or the Exchange Act, except as may be expressly set forth by specific reference in such filing.

Item 7.01 Regulation FD Disclosure.

The Company hereby furnishes the Earnings Presentation attached hereto as Exhibit 99.2.

The information furnished in this item of this Form 8-K, and the related exhibit, shall not be deemed "filed" for purposes of Section 18 of the Exchange Act, or incorporated by reference in any filing under the Securities Act or the Exchange Act, except as may be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

Exhibit Number	Description
99.1	Press Release of West Bancorporation, Inc. dated April 23, 2026
99.2	First Quarter 2026 Earnings Presentation
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

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 hereunto duly authorized.

		West Bancorporation, Inc.
April 23, 2026	By:	/s/ Jane M. Funk
		Name: Jane M. Funk
		Title: Executive Vice President, Treasurer and Chief Financial Officer

EX-99.1

Exhibit 99.1

Press Release

April 23, 2026

FOR IMMEDIATE RELEASE

For more information contact:

Jane Funk, Executive Vice President, Treasurer and Chief Financial Officer (515) 222-5766

WEST BANCORPORATION, INC. ANNOUNCES FIRST QUARTER 2026 FINANCIAL RESULTS AND DECLARES QUARTERLY DIVIDEND

West Des Moines, IA - West Bancorporation, Inc. (Nasdaq: WTBA; the “Company”), parent company of West Bank, today reported first quarter 2026 net income of $10.6 million, or $0.61 per diluted common share, compared to fourth quarter 2025 net income of $7.4 million, or $0.43 per diluted common share, and first quarter 2025 net income of $7.8 million, or $0.46 per diluted common share. On April 22, 2026, the Company’s Board of Directors declared a regular quarterly dividend of $0.25 per common share. The dividend is payable on May 20, 2026, to stockholders of record on May 6, 2026.

David Nelson, President and Chief Executive Officer of the Company, commented, “Our priorities continue to center on our relationship building strategies to drive improvements in profitability and build shareholder value. Our net interest margin continues to expand and we saw net income increase 34.8 percent in the first quarter of 2026 compared to the first quarter of 2025. Our teams are working hard at the activities that we believe will result in enhanced financial performance.”

Mr. Nelson added, “Our balance sheet remains exceptionally strong, supported by solid capital and liquidity levels. Credit quality remains pristine with no loans on nonaccrual status at March 31, 2026. Additionally, this marks our seventh consecutive quarter-end with no loans greater than 30 days past due.”

First Quarter 2026 Compared to Fourth Quarter 2025 Overview

•Loans decreased $10.1 million, or 0.3 percent, in the first quarter of 2026. We continue to experience notable loan payoffs as a result of secondary market refinancings and asset and business sales. The change in loan mix is primarily due to reclassifications resulting from completed construction projects moving to permanent financing and commercial loan restructurings adding real estate collateral.

•No credit loss expense on loans was recorded in either the first quarter of 2026 or fourth quarter of 2025.

•The allowance for credit losses to total loans was 1.02 percent as of both March 31, 2026 and December 31, 2025. There were no nonaccrual loans at March 31, 2026 or December 31, 2025. Watch list loans decreased from $52.2 million as of December 31, 2025 to $41.3 million as of March 31, 2026. This decrease was primarily due to the payoff of one commercial real estate loan in the first quarter of 2026 with a balance of $11.4 million.

•Deposits decreased $133.5 million, or 3.8 percent, in the first quarter of 2026. Brokered deposits totaled $116.5 million at March 31, 2026, compared to $154.6 million at December 31, 2025, a decrease of $38.1 million. Excluding brokered deposits, deposits decreased $95.4 million, or 2.9 percent, during the first quarter of 2026. The decline in deposits was due to normal cash flow fluctuations of our core depositors. As of March 31, 2026, estimated uninsured deposits, which exclude deposits in a reciprocal deposit network, brokered deposits and public funds protected by state programs, accounted for approximately 27.0 percent of total deposits.

•Net interest margin, on a fully tax-equivalent basis (a non-GAAP measure), was 2.59 percent for the first quarter of 2026, compared to 2.47 percent for the fourth quarter of 2025. Net interest income for the first quarter of 2026 was $24.4 million, compared to $24.2 million for the fourth quarter of 2025. The improvement in net interest margin was primarily due to a 14 basis point decrease in the cost of deposits in the first quarter of 2026 when compared to the fourth quarter of 2025.

•The efficiency ratio (a non-GAAP measure) improved to 49.85 percent for the first quarter of 2026, compared to 50.21 percent for the fourth quarter of 2025.

•The tangible common equity ratio was 6.75 percent as of March 31, 2026, compared to 6.42 percent as of December 31, 2025.

First Quarter 2026 Compared to First Quarter 2025 Overview

•Loans decreased $24.8 million at March 31, 2026, or 0.8 percent, compared to March 31, 2025. We continue to experience notable loan payoffs as a result of secondary market refinancings and asset and business sales. The change in loan mix is primarily due to reclassifications resulting from completed construction projects moving to permanent financing and commercial loan restructurings adding real estate collateral.

•Deposits increased $10.5 million, or 0.3 percent, at March 31, 2026, compared to March 31, 2025. Included in deposits were brokered deposits totaling $116.5 million at March 31, 2026, compared to $335.5 million at March 31, 2025. Excluding brokered deposits, deposits increased $229.5 million, or 7.7 percent, as of March 31, 2026, compared to March 31, 2025. In the second quarter of 2025, a local municipal customer deposited approximately $243.0 million of bond proceeds that are expected to be withdrawn over a 24 month time period.

•Net interest margin, on a fully tax-equivalent basis (a non-GAAP measure), was 2.59 percent for the first quarter of 2026, compared to 2.28 percent for the first quarter of 2025. Net interest income for the first quarter of 2026 was $24.4 million, compared to $20.9 million for the first quarter of 2025. The increase in net interest margin and net interest income was primarily due to a decrease in interest expense on deposits and borrowed funds. The cost of deposits decreased by 40 basis points in the first quarter of 2026 compared to the first quarter of 2025. This was partially offset by a $79.8 million increase in average deposit balances in the first quarter of 2026 compared to the first quarter of 2025. Additionally, the average balance of borrowed funds decreased $16.2 million in the first quarter of 2026, compared to the first quarter of 2025.

•The efficiency ratio (a non-GAAP measure) was 49.85 percent for the first quarter of 2026, compared to 56.37 percent for the first quarter of 2025. The improvement in the efficiency ratio in the first quarter of 2026 compared to the first quarter of 2025 was primarily due to the increase in net interest income.

•The tangible common equity ratio was 6.75 percent as of March 31, 2026, compared to 5.97 percent as of March 31, 2025. The increase in the tangible common equity ratio was due to growth in retained earnings and a decrease in accumulated other comprehensive loss.

The Company filed its report on Form 10-Q with the Securities and Exchange Commission today. Please refer to that document for a more in-depth discussion of the Company’s financial results. The Form 10-Q is available on the Investor Relations section of West Bank’s website at www.westbankstrong.com.

The Company will discuss its results in a conference call scheduled for 2:00 p.m. Central Time on Thursday, April 23, 2026. The telephone number for the conference call is 800-715-9871. The conference ID for the conference call is 7846129. A recording of the call will be available until May 7, 2026, by dialing 800-770-2030. The conference ID for the replay call is 7846129 followed by the # key.

About West Bancorporation, Inc. (Nasdaq: WTBA)

West Bancorporation, Inc. is headquartered in West Des Moines, Iowa. Serving customers since 1893, West Bank, a wholly-owned subsidiary of West Bancorporation, Inc., is a community bank that focuses on lending, deposit services, and trust services for small- to medium-sized businesses and consumers. West Bank has six offices in the Des Moines, Iowa metropolitan area, one office in Coralville, Iowa, and four offices in Minnesota in the cities of Rochester, Owatonna, Mankato and St. Cloud.

Certain statements in this report, other than purely historical information, including estimates, projections, statements relating to the Company’s business plans, objectives and expected operating results, and the assumptions upon which those statements are based, are “forward-looking statements” within the meanings of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The Company intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Forward-looking statements may appear throughout this report. These forward-looking statements are generally identified by the words “believes,” “expects,” “intends,” “anticipates,” “projects,” “forecasts,” “plans,” “targets,” “future,” “confident,” “potentially,” “probably,” “outlook,” “may,” “should,” “would,” “could,” “will,” “strategy,” “plan,” “opportunity,” “will be,” “will likely result,” “will continue” or similar references, as well as the negative of such words, or references to estimates, predictions or future events. Forward-looking statements are not historical facts but instead represent management’s current expectations and forecasts regarding future events, many of which are inherently uncertain and outside of our control. Such forward-looking statements are based upon certain underlying assumptions, known and unknown, risks and uncertainties. Because of the possibility that the underlying assumptions are incorrect or do not materialize as expected in the future, actual results may differ, possibly materially from these forward-looking statements. Risks and uncertainties that may affect future results include, but are not limited to: interest rate risk, including the effects of changes in interest rates; fluctuations in the values of the securities held in our investment portfolio, including as a result of rising interest rates; competitive pressures, including from non-bank competitors such as credit unions, “fintech” companies and digital asset service providers; technological changes implemented by us and other parties, including third-party vendors, which may be more difficult to implement or more expensive than anticipated or which may have unforeseen consequences to us and our customers, including the development and implementation of tools incorporating artificial intelligence; pricing pressures on loans and deposits; our ability to successfully manage liquidity risk; changes in credit and other risks posed by the Company’s loan portfolio, including declines in commercial or residential real estate values or changes in the allowance for credit losses dictated by new market conditions, accounting standards or regulatory requirements; the concentration of large deposits from certain clients, including those who have balances above current FDIC insurance limits; the threat or imposition of domestic or foreign tariffs or other governmental policies impacting the global supply chain and the value of products produced by our commercial borrowers; effects on the U.S. economy resulting from actions taken by the federal government, including executive orders and immigration enforcement; changes in local, national and international economic conditions, including the level and impact of inflation, and future monetary policies of the Federal Reserve in response thereto, and possible recession; the impact of bank failures or adverse developments at other banks and related negative publicity about the banking industry in general on investor and depositor sentiment regarding the stability and liquidity of banks; changes in legal and regulatory requirements, limitations and costs; changes in customers’ acceptance of the Company’s products and services; the occurrence of fraudulent activity, breaches or failures of our or our third-party partners’ information security controls or cyber-security related incidents, including as a result of sophisticated attacks using artificial intelligence and similar tools; unexpected outcomes of existing or new litigation involving the Company; the monetary, trade and other regulatory policies of the U.S. government; the effects of acts of war or terrorism, including the wars in Iran and Ukraine and the military conflict between Israel and Hamas in the Middle East; widespread disease, pandemics or epidemics, or other adverse external events; risks related to climate change and the negative impact it may have on our customers and their business; changes to U.S. tax laws, regulations and guidance; potential changes in federal policy and at regulatory agencies; talent and labor shortages; and any other risks described in the “Risk Factors” sections of reports filed by the Company with the Securities and Exchange Commission (the “SEC”). The Company cautions readers not to place undue reliance on any forward-looking statements. Moreover, any of the forward-looking statements that the Company makes in this report or the documents the Company files with or furnishes to the SEC are based only on information then actually known to the Company and upon management’s beliefs and assumptions at the time they are made, which may turn out to be wrong because of inaccurate assumptions they might make, because of the factors described above or because of other factors that the Company cannot foresee. Forward-looking statements speak only as of the date they are made, and the Company does not undertake and specifically disclaims any obligation to revise or update such forward-looking statements to reflect current or future events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

WEST BANCORPORATION, INC. AND SUBSIDIARY
Financial Information (unaudited)
	As of and for the Quarter Ended
KEY PERFORMANCE RATIOS AND OTHER METRICS	March 31, 2026			December 31, 2025			September 30, 2025			June 30, 2025			March 31, 2025
Return on average assets(1)	1.06		%	0.72		%	0.92		%	0.80		%	0.81		%
Return on average equity(2)	15.91			11.33			15.25			13.65			13.84
Net interest margin(3)(13)	2.59			2.47			2.36			2.27			2.28
Yield on interest-earning assets(4)(13)	5.04			5.02			5.13			5.07			5.04
Cost of interest-bearing liabilities	2.90			3.02			3.26			3.28			3.25
Efficiency ratio(5)(13)	49.85			50.21			54.06			56.45			56.37
Nonperforming assets to total assets(6)	0.00			0.00			0.00			0.00			0.00
ACL ratio(7)	1.02			1.02			1.01			1.03			1.01
Loans/total assets	74.59			72.47			75.50			73.12			75.66
Loans/total deposits	89.71			86.54			91.00			87.45			90.73
Tangible common equity ratio(8)	6.75			6.42			6.40			5.94			5.97
COMMON SHARE DATA
Earnings per common share (basic)	$	0.62		$	0.44		$	0.55		$	0.47		$	0.47
Earnings per common share (diluted)	0.61			0.43			0.55			0.47			0.46
Dividends per common share	0.25			0.25			0.25			0.25			0.25
Book value per common share(9)	15.90			15.70			15.06			14.22			14.06
Closing stock price	23.79			22.19			20.32			19.63			19.94
Market price/book value(10)	149.62		%	141.34		%	134.93		%	138.05		%	141.82		%
Price earnings ratio(11)	9.40			12.71			9.31			10.41			10.46
Annualized dividend yield(12)	4.20		%	4.51		%	4.92		%	5.09		%	5.02		%
REGULATORY CAPITAL RATIOS
Consolidated:
Total risk-based capital ratio	12.99		%	12.77		%	12.54		%	12.53		%	12.18		%
Tier 1 risk-based capital ratio	10.34			10.14			9.93			9.89			9.59
Tier 1 leverage capital ratio	8.74			8.44			8.51			8.33			8.36
Common equity tier 1 ratio	9.77			9.56			9.37			9.32			9.02
West Bank:
Total risk-based capital ratio	13.53		%	13.35		%	13.17		%	13.21		%	12.90		%
Tier 1 risk-based capital ratio	12.61			12.44			12.26			12.29			11.99
Tier 1 leverage capital ratio	10.66			10.35			10.50			10.36			10.46
Common equity tier 1 ratio	12.61			12.44			12.26			12.29			11.99

(1) Annualized net income divided by average assets.

(2) Annualized net income divided by average stockholders’ equity.

(3) Annualized tax-equivalent net interest income divided by average interest-earning assets.

(4) Annualized tax-equivalent interest income on interest-earning assets divided by average interest-earning assets.

(5) Noninterest expense (excluding other real estate owned expense and write-down of premises) divided by noninterest income (excluding net securities gains/losses and gains/losses on disposition of premises and equipment) plus tax-equivalent net interest income.

(6) Total nonperforming assets divided by total assets.

(7) Allowance for credit losses on loans divided by total loans.    

(8) Common equity less intangible assets (none held) divided by tangible assets.

(9) Includes accumulated other comprehensive loss.

(10) Closing stock price divided by book value per common share.

(11) Closing stock price divided by annualized earnings per common share (basic).

(12) Annualized dividend divided by period end closing stock price.

(13) A non-GAAP measure.

WEST BANCORPORATION, INC. AND SUBSIDIARY
Financial Information (unaudited)
(in thousands)
	As of
CONDENSED BALANCE SHEETS	March 31, 2026		December 31, 2025		September 30, 2025		June 30, 2025		March 31, 2025
Assets
Cash and due from banks	$	40,018	$	25,171	$	26,875	$	35,796	$	39,253
Interest-earning deposits with banks	180,218		324,502		109,265		212,450		171,357
Securities purchased under agreements to resell	141,742		121,413		96,792		96,955		—
Securities available for sale, at fair value	456,410		468,447		537,856		536,709		546,619
Federal Home Loan Bank stock, at cost	15,180		15,167		15,190		15,311		15,216
Loans	2,991,638		3,001,690		3,008,888		2,966,357		3,016,471
Allowance for credit losses	(30,523)		(30,525)		(30,515)		(30,539)		(30,526)
Loans, net	2,961,115		2,971,165		2,978,373		2,935,818		2,985,945
Premises and equipment, net	107,619		108,380		109,212		109,806		110,270
Bank-owned life insurance	46,500		46,192		45,875		45,567		45,272
Other assets	62,171		61,807		66,042		68,257		72,737
Total assets	$	4,010,973	$	4,142,244	$	3,985,480	$	4,056,669	$	3,986,669
Liabilities and Stockholders’ Equity
Deposits	$	3,334,972	$	3,468,470	$	3,306,517	$	3,391,993	$	3,324,518
Borrowings	375,221		376,406		389,076		390,260		391,445
Other liabilities	30,037		31,383		34,754		33,486		32,833
Stockholders’ equity	270,743		265,985		255,133		240,930		237,873
Total liabilities and stockholders’ equity	$	4,010,973	$	4,142,244	$	3,985,480	$	4,056,669	$	3,986,669
	For the Quarter Ended
AVERAGE BALANCES	March 31, 2026		December 31, 2025		September 30, 2025		June 30, 2025		March 31, 2025
Assets	$	4,027,218	$	4,104,279	$	4,004,769	$	4,016,490	$	3,944,789
Loans	2,971,497		2,982,754		2,959,962		2,989,638		3,016,119
Deposits	3,348,255		3,418,539		3,333,800		3,353,982		3,284,394
Stockholders’ equity	269,453		259,932		242,245		234,399		229,874

WEST BANCORPORATION, INC. AND SUBSIDIARY
Financial Information (unaudited)
(in thousands)
	As of
LOANS	March 31, 2026		December 31, 2025		September 30, 2025		June 30, 2025		March 31, 2025
Commercial	$	471,423	$	505,059	$	511,316	$	500,854	$	531,267
Real estate:
Construction, land and land development	376,059		426,833		448,660		459,037		451,230
1-4 family residential first mortgages	139,118		93,122		87,784		86,173		86,292
Home equity	27,084		26,088		27,083		24,285		21,961
Commercial	1,958,189		1,929,766		1,912,235		1,875,857		1,909,330
Consumer and other	22,257		23,374		24,697		22,900		19,323
	2,994,130		3,004,242		3,011,775		2,969,106		3,019,403
Net unamortized fees and costs	(2,492)		(2,552)		(2,887)		(2,749)		(2,932)
Total loans	$	2,991,638	$	3,001,690	$	3,008,888	$	2,966,357	$	3,016,471
Less: allowance for credit losses	(30,523)		(30,525)		(30,515)		(30,539)		(30,526)
Net loans	$	2,961,115	$	2,971,165	$	2,978,373	$	2,935,818	$	2,985,945
CREDIT QUALITY
Pass	$	2,952,824	$	2,952,015	$	2,973,103	$	2,958,318	$	3,011,231
Watch	41,306		52,227		38,672		10,788		7,991
Substandard	—		—		—		—		181
Doubtful	—		—		—		—		—
Total loans	$	2,994,130	$	3,004,242	$	3,011,775	$	2,969,106	$	3,019,403
DEPOSITS
Noninterest-bearing demand	$	511,013	$	540,358	$	512,869	$	521,990	$	519,771
Interest-bearing demand	489,990		577,814		448,731		461,207		517,409
Savings and money market - non-brokered	1,731,835		1,739,790		1,677,543		1,749,049		1,490,189
Money market - brokered	86,304		99,718		121,849		98,877		143,423
Total nonmaturity deposits	2,819,142		2,957,680		2,760,992		2,831,123		2,670,792
Time - non-brokered	485,658		455,944		462,542		451,463		461,655
Time - brokered	30,172		54,846		82,983		109,407		192,071
Total time deposits	515,830		510,790		545,525		560,870		653,726
Total deposits	$	3,334,972	$	3,468,470	$	3,306,517	$	3,391,993	$	3,324,518
BORROWINGS
Subordinated notes, net	$	80,221	$	80,156	$	80,090	$	80,024	$	79,959
Federal Home Loan Bank advances	270,000		270,000		270,000		270,000		270,000
Long-term debt	25,000		26,250		38,986		40,236		41,486
Total borrowings	$	375,221	$	376,406	$	389,076	$	390,260	$	391,445
STOCKHOLDERS’ EQUITY
Preferred stock	$	—	$	—	$	—	$	—	$	—
Common stock	3,000		3,000		3,000		3,000		3,000
Additional paid-in capital	36,553		37,231		36,473		35,773		35,072
Retained earnings	300,596		294,259		291,069		285,990		282,247
Accumulated other comprehensive loss	(69,406)		(68,505)		(75,409)		(83,833)		(82,446)
Total stockholders’ equity	$	270,743	$	265,985	$	255,133	$	240,930	$	237,873

WEST BANCORPORATION, INC. AND SUBSIDIARY
Financial Information (unaudited)
(in thousands)
	For the Quarter Ended
CONSOLIDATED STATEMENTS OF INCOME	March 31, 2026		December 31, 2025		September 30, 2025		June 30, 2025		March 31, 2025
Interest income:
Loans, including fees	$	40,946	$	41,992	$	42,198	$	41,666	$	40,988
Securities:
Taxable	2,143		2,355		2,643		2,685		2,788
Tax-exempt	638		677		739		742		743
Deposits with banks	2,047		2,808		2,087		2,847		1,617
Securities purchased under agreements to resell	1,617		1,370		1,258		22		—
Total interest income	47,391		49,202		48,925		47,962		46,136
Interest expense:
Deposits	19,261		21,112		22,539		22,676		21,423
Subordinated notes	1,104		1,109		1,107		1,104		1,105
Federal Home Loan Bank advances	2,244		2,316		2,292		2,259		2,235
Long-term debt	397		459		486		504		518
Total interest expense	23,006		24,996		26,424		26,543		25,281
Net interest income	24,385		24,206		22,501		21,419		20,855
Credit loss expense	—		—		—		—		—
Net interest income after credit loss expense	24,385		24,206		22,501		21,419		20,855
Noninterest income:
Service charges on deposit accounts	508		493		491		486		471
Debit card interchange income	472		493		477		478		446
Trust services	1,010		964		894		801		777
Increase in cash value of bank-owned life insurance	308		317		308		295		282
Realized securities losses, net	—		(3,959)		—		—		—
Other income	256		800		333		350		267
Total noninterest income (loss)	2,554		(892)		2,503		2,410		2,243
Noninterest expense:
Salaries and employee benefits	7,632		7,579		7,457		7,343		7,004
Occupancy and equipment	2,006		2,083		2,090		2,034		1,963
Data processing	596		673		663		643		617
Technology and software	774		789		794		791		786
FDIC insurance	473		475		637		670		587
Professional fees	278		297		303		303		308
Other expenses	1,706		1,833		1,606		1,701		1,798
Total noninterest expense	13,465		13,729		13,550		13,485		13,063
Income before income taxes	13,474		9,585		11,454		10,344		10,035
Income taxes	2,902		2,160		2,140		2,365		2,193
Net income	$	10,572	$	7,425	$	9,314	$	7,979	$	7,842
Basic earnings per common share	$	0.62	$	0.44	$	0.55	$	0.47	$	0.47
Diluted earnings per common share	$	0.61	$	0.43	$	0.55	$	0.47	$	0.46

NON-GAAP FINANCIAL MEASURES

This report contains references to financial measures that are not defined in GAAP. Such non-GAAP financial measures include the Company’s presentation of net interest income and net interest margin on a fully taxable equivalent (FTE) basis and the presentation of the efficiency ratio on an adjusted and FTE basis, excluding certain income and expenses. Management believes these non-GAAP financial measures provide useful information to both management and investors to analyze and evaluate the Company’s financial performance. These measures are considered standard measures of comparison within the banking industry. Additionally, management believes providing measures on a FTE basis enhances the comparability of income arising from taxable and nontaxable sources. Limitations associated with non-GAAP financial measures include the risks that persons might disagree as to the appropriateness of items included in these measures and that different companies might calculate these measures differently. These non-GAAP disclosures should not be considered an alternative to the Company’s GAAP results. The following table reconciles the non-GAAP financial measures of net interest income and net interest margin on a fully taxable equivalent basis and efficiency ratio on an adjusted and FTE basis.

(in thousands)	For the Quarter Ended
	March 31, 2026			December 31, 2025			September 30, 2025			June 30, 2025			March 31, 2025
Reconciliation of net interest income and net interest margin on a FTE basis to GAAP:
Net interest income (GAAP)	$	24,385		$	24,206		$	22,501		$	21,419		$	20,855
Tax-equivalent adjustment (1)	72			70			61			59			66
Net interest income on a FTE basis (non-GAAP)	24,457			24,276			22,562			21,478			20,921
Average interest-earning assets	3,821,463			3,893,827			3,790,154			3,799,081			3,717,441
Net interest margin on a FTE basis (non-GAAP)	2.59		%	2.47		%	2.36		%	2.27		%	2.28		%
Reconciliation of efficiency ratio on an adjusted and FTE basis to GAAP:
Net interest income on a FTE basis (non-GAAP)	$	24,457		$	24,276		$	22,562		$	21,478		$	20,921
Noninterest income	2,554			(892)			2,503			2,410			2,243
Adjustment for realized securities losses, net	—			3,959			—			—			—
Adjustment for losses on disposal of premises and equipment, net	2			—			—			—			8
Adjusted income	27,013			27,343			25,065			23,888			23,172
Noninterest expense	13,465			13,729			13,550			13,485			13,063
Efficiency ratio on an adjusted and FTE basis (non-GAAP) (2)	49.85		%	50.21		%	54.06		%	56.45		%	56.37		%

(1)    Computed on a tax-equivalent basis using a federal income tax rate of 21 percent, adjusted to reflect the effect of the nondeductible interest expense associated with owning tax-exempt securities and loans. Management believes the presentation of this non-GAAP measure provides supplemental useful information for proper understanding of the financial results, as it enhances the comparability of income arising from taxable and nontaxable sources.

(2)     The efficiency ratio expresses noninterest expense as a percent of fully taxable equivalent net interest income and noninterest income, excluding specific noninterest income and expenses. Management believes the presentation of this non-GAAP measure provides supplemental useful information for proper understanding of the Company's financial performance. It is a standard measure of comparison within the banking industry. A lower ratio is more desirable.

EX-99.2

1 NASDAQ: WTBA Q1 2026 | Earnings Highlights

2 Certain statements in this presentation, other than purely historical information, including estimates, projections, statements relating to the Company’s business plans, objectives and expected operating results, and the assumptions upon which those statements are based, are “forward-looking statements” within the meanings of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act). The Company intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Forward-looking statements may appear throughout this presentation. These forward-looking statements are generally identified by the words “believes,” “expects,” “intends,” “anticipates,” “projects,” "forecasts," "plans," "targets," “future,” “confident,” "potentially," "probably," "outlook," “may,” “should,” "would," "could," “will,” “strategy,” “plan,” “opportunity,” “will be,” “will likely result,” “will continue” or similar references, as well as the negative of such words, or references to estimates, predictions or future events. Forward-looking statements are not historical facts but instead represent management's current expectations and forecasts regarding future events, many of which are inherently uncertain and outside our control. Such forward-looking statements are based upon certain underlying assumptions, known and unknown risks and uncertainties. Because of the possibility that the underlying assumptions are incorrect or do not materialize as expected in the future, actual results may differ, possibly materially, from these forward-looking statements. Risks and uncertainties that may affect future results include, but are not limited to: interest rate risk, including the effects of changes in interest rates; fluctuations in the values of the securities held in our investment portfolio, including as a result of rising interest rates; competitive pressures, including from non-bank competitors such as credit unions, “fintech” companies and digital asset service providers; technological changes implemented by us and other parties, including third-party vendors, which may be more difficult to implement or more expensive than anticipated or which may have unforeseen consequences to us and our customers, including the development and implementation of tools incorporating artificial intelligence; pricing pressures on loans and deposits; our ability to successfully manage liquidity risk; changes in credit and other risks posed by the Company’s loan portfolio, including declines in commercial or residential real estate values or changes in the allowance for credit losses dictated by new market conditions, accounting standards or regulatory requirements; the concentration of large deposits from certain clients, including those who have balances above current FDIC insurance limits; the threat or imposition of domestic or foreign tariffs or other governmental policies impacting the global supply chain and the value of products produced by our commercial borrowers; effects on the U.S. economy resulting from actions taken by the federal government, including executive orders and immigration enforcement; changes in local, national and international economic conditions, including the level and impact of inflation, and future monetary policies of the Federal Reserve in response thereto, and possible recession; the impact of bank failures or adverse developments at other banks and related negative publicity about the banking industry in general on investor and depositor sentiment regarding the stability and liquidity of banks; changes in legal and regulatory requirements, limitations and costs; changes in customers’ acceptance of the Company’s products and services; the occurrence of fraudulent activity, breaches or failures of our or our third-party partners' information security controls or cyber-security related incidents, including as a result of sophisticated attacks using artificial intelligence and similar tools; unexpected outcomes of existing or new litigation involving the Company; the monetary, trade and other regulatory policies of the U.S. government; the effects of acts of war or terrorism, including the wars in Iran and Ukraine and the military conflict between Israel and Hamas in the Middle East; widespread disease, pandemics or epidemics, or other adverse external events; risks related to climate change and the negative impact it may have on our customers and their business; changes to U.S. tax laws, regulations and guidance; potential changes in federal policy and at regulatory agencies; talent and labor shortages; and any other risks described in the “Risk Factors” sections of reports filed by the Company with the Securities and Exchange Commission (the "SEC"). The Company cautions readers not to place undue reliance on any forward-looking statements. Moreover, any of the forward-looking statements that the Company makes in this report or the documents the Company files with or furnishes to the SEC are based only on information then actually known to the Company and upon management's beliefs and assumptions at the time they are made, which may turn out to be wrong because of inaccurate assumptions they might take, because of the factors described above or because other factors that the Company cannot foresee. Forward-looking statements speak only as of the date they are made, and the Company does not undertake and specifically disclaims any obligation to revise or update such forward-looking statements to reflect current or future events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. Except as otherwise indicated, this presentation speaks as of the date hereof. The delivery of this presentation shall not, under any circumstances, create any implication that there has been no change in the affairs of West Bancorporation, Inc. after the date hereof. Certain of the information contained herein may be derived from information provided by industry sources. We believe that such information is accurate and that the sources from which it has been obtained are reliable. We cannot guarantee the accuracy of such information, however, and we have not independently verified such information. This presentation contains references to financial measures that are not defined in GAAP. Such non-GAAP financial measures include the Company’s presentation of net interest income and net interest margin on a fully taxable equivalent (FTE) basis and the presentation of the efficiency ratio on an adjusted and FTE basis, excluding certain income and expenses. Management believes these non-GAAP financial measures provide useful information to both management and investors to analyze and evaluate the Company’s financial performance. These measures are considered standard measures of comparison within the banking industry. Additionally, management believes providing measures on a FTE basis enhances the comparability of income arising from taxable and nontaxable sources. Limitations associated with non-GAAP financial measures include the risks that persons might disagree as to the appropriateness of items included in these measures and that different companies might calculate these measures differently. These non-GAAP disclosures should not be considered an alternative to the Company’s GAAP results. This presentation includes reconciliations of non-GAAP financial measures to comparable GAAP financial measures. Disclaimers

3 1Q 2026 Financial Highlights * Presented on a fully taxable equivalent basis; see Appendix for “Non-GAAP Financial Measures.” $26.26 NASDAQ: WTBA March 31, 2026 Closing Price $23.79 1Q 2026 Price Range $21.66 to $26.60 Cash Dividend Per Share Declared On April 22, 2026 $0.25 (payable on May 20, 2026) Annualized Dividend Yield 4.20% 1Q 2026 Total Assets $4.0 billion Gross Loans $3.0 billion Total Deposits $3.3 billion Net Income $10.6 million Annualized ROAA 1.06% Annualized ROAE 15.91% Net Interest Margin* 2.59% Efficiency Ratio* 49.85% NPAs/Assets 0.00% Diluted EPS $0.61

4 • West Bancorporation, Inc. (the “Company”) is a publicly traded, financial holding company (NASDAQ: WTBA) established in 1984. Its sole subsidiary is West Bank, founded in 1893. • West Bank is a full service commercial bank headquartered in West Des Moines, Iowa and has 11 branches and commercial banking offices serving the greater Des Moines, Iowa area; eastern Iowa, which includes Iowa City and Coralville, Iowa; and southern Minnesota, which includes Rochester, Owatonna, Mankato, and St. Cloud, Minnesota. • The Company is a long-standing and reliable, dividend paying community bank. Our mission is to build strong relationships, build strong communities, and build upon our strong reputation to ensure our clients receive exceptional care, our communities receive outstanding support, and the loyalty of our employees and stockholders is rewarded. Company Profile and Mission • One of the Company's key competitive advantages is its client-centric approach to delivering strategic financial solutions to businesses and business owners, driven by the establishment of deep customer relationships and extensive experience in its markets. • First and foremost a community bank, West Bank has built a strong reputation for being responsive to local needs. West Bank employees place a high priority on community involvement, lending their time and talents to a long list of civic and community projects. Mission

5 Experienced Executive Leadership David D. Nelson Director/Chief Executive Officer/President Joined West Bank in 2010 Years in Banking: 43 Prior to joining the Company Mr. Nelson was the President of Southeast Minnesota Business Banking and President of Wells Fargo Bank Rochester in Rochester, Minnesota. Harlee N. Olafson Chief Risk Officer/Executive Vice President Joined West Bank in 2010 Years in Banking: 48 Prior to joining the Company Mr. Olafson was the President of Southwest Minnesota Business Banking and President of Wells Fargo Bank Mankato in Mankato, Minnesota. Bradley P. Peters Executive Vice President West Bank Minnesota Group President Joined West Bank in 2019 Years in Banking: 41 Prior to joining the Company Mr. Peters was the Executive Vice President of a $16 billion regional bank in Minnesota where he was responsible for new market expansion. Jane M. Funk Chief Financial Officer Executive Vice President/Treasurer Joined West Bank in 2014 Years in Banking & Public Accounting: 36 Ms. Funk has extensive experience in the community banking industry and spent 18 years of her career at a large public accounting firm. Brad L. Winterbottom Executive Vice President West Bank President Joined West Bank in 1992 Years in Banking: 46 Mr. Winterbottom has extensive experience in commercial lending and loan portfolio administration and knowledge of the Iowa business community. Todd A. Mather West Bank Central Iowa Market President Joined West Bank in 2019 Years in Banking: 30 Prior to joining West Bank, Mr. Mather spent 8 years at a $16 billion regional bank in Minnesota as a Senior Credit Director and Group Senior Credit Manager.

6 Conservative Organic Growth with Successful Lift-Out Strategies David Nelson joins West Bancorporation, Inc. as CEO. Entered the Rochester, Minnesota market by hiring experienced bankers who had existing strong relationships with local business owners and creating an advisory community board made up of local business owners and leaders. Successful and profitable establishment of market presence led to construction of permanent commercial banking office in 2016. Reached $2 billion in total assets. Expanded into St. Cloud, Mankato, and Owatonna, Minnesota with the same lift- out strategy used in Rochester, Minnesota. Successful and profitable establishment of market presence led to construction of permanent commercial banking offices in each of these three markets during 2022-2025. Reached $3 billion in total assets. Opened new corporate headquarters building in West Des Moines, Iowa in April 2024. The new building consolidated the organization's operations under one roof, and provides space for future growth and enhanced business development opportunities. Reached $4 billion in total assets. 2010 2013 2018 2019 2020 2024 2024

7 Company Highlights – Commitment to Excellence West Bancorporation, Inc. is a high performing company in U.S. community banking, well-versed in providing commercial banking services, including loans and lines of credit and all types of deposit services, to small- and medium-sized businesses in its Iowa and Minnesota markets. Attractive Franchise Strategy Community Service & Philanthropy • A 133 year presence in the Des Moines, Iowa metropolitan area and is West Des Moines' oldest business of any type. • Long track record of growth and stability coupled with attractive financial returns and dividend yield. • Simple and consistent business model with a conservative operating philosophy and expense management controls. • Efficient and right-sized branch network, with a total of 11 offices serving 6 markets. • Organic growth strategy with a track record of successful lift-out strategies and a branch-lite structure. • Disciplined business model highlighted by focus on risk management and consistent execution that has resulted in pristine credit quality. • Superior talent with business expertise in building relationships and providing a differentiated level of service. • In 2025, our employees volunteered over 7,000 hours of community service. • In 2025, the West Bancorporation Foundation and West Bank provided over $550,000 in total philanthropic contributions to more than 182 organizations. • West Bancorporation, Inc.'s corporate headquarters, which opened in April 2024, was constructed on a redevelopment site in West Des Moines, Iowa in an area in need of a catalyst for revitalization.

8 Company Highlights – Commitment to Excellence West Bank is a commercially-focused financial institution operating in high quality markets in Iowa and Minnesota led by a deep and experienced management team with skills developed internally and with other large regional banking institutions. Credit Culture Asset Quality & Risk Management • Strict credit risk management with robust processes and experienced credit personnel. • 30 high quality commercial bankers with an average of 22 years of commercial banking experience. • Centralized committee structure that is agile and responsive to customer needs and an organizational structure that provides deep support of credit and administrative functions. • We are a local lender to local customers. • Proven credit culture with a history of strong asset quality. • Classified and watch list loan balance was 1.38% of the loan portfolio at March 31, 2026. • No nonperforming assets at March 31, 2026. • Commercial real estate stress testing is completed quarterly. • Independent third party loan review is performed semi-annually.

9 1Q 2026 Income Statement Highlights (in thousands) For the Quarter Ended Q1 '25 Q4 '25 Q1 '26 Linked Quarter Comments Q4 '25 vs. Q1 '26 Net interest income $ 20,855 $ 24,206 $ 24,385 Increase primarily due to decreases in rates on deposits and average deposit balances, partially offset by a decrease in average balance of deposits with banks. Net interest margin(1) 2.28 % 2.47 % 2.59 % Credit loss expense $ — $ — $ — Noninterest income (excluding securities losses) $ 2,243 $ 3,067 $ 2,554 Decrease primarily due to a one-time third party contract incentive in the fourth quarter of 2025. Realized securities losses $ — $ (3,959) $ — $63.7 million of proceeds from investment security sales in the fourth quarter of 2025 improved balance sheet flexibility and long- term earnings profile. Noninterest expense $ 13,063 $ 13,729 $ 13,465 Decrease primarily due to one-time consulting fees that were incurred in the fourth quarter of 2025.Efficiency ratio(1) 56.37 % 50.21 % 49.85 % Income tax expense $ 2,193 $ 2,160 $ 2,902 Net income $ 7,842 $ 7,425 $ 10,572 Return on average equity 13.84 % 11.33 % 15.91 % (1) Presented on a fully taxable equivalent basis; see Appendix for “Non-GAAP Financial Measures.”

10 Net Interest Income (1) Presented on a fully taxable equivalent basis; see Appendix for “Non-GAAP Financial Measures.” $20.9 $21.4 $22.5 $24.2 $24.4 1Q25 2Q25 3Q25 4Q25 1Q26 Net Interest Income ($ in millions) 2.28% 2.27% 2.36% 2.47% 2.59% Net interest margin %(1) Quarterly Highlights • Net interest income increased $0.2 million and net interest margin increased 12 bps in Q1 2026 compared to Q4 2025. Increases were primarily driven by decreases in rates on deposits and average deposit balances. • Average balances of interest-earning deposits with banks decreased as a result of the decrease in average deposit balances. • Interest income on loans decreased $1.0 million primarily due to average loan balances decreasing by $11.3 million. Loan yields were 5.59% in both Q1 2026 and Q4 2025. Fixed-rate loan originations and renewals continue to price at higher prevailing market rates. • Deposit interest expense decreased $1.9 million, primarily due to the cost of interest-bearing deposits decreasing 14 bps from Q4 2025 to Q1 2026. Also contributing to the decrease was the decline in average deposit balances of $52.1 million in Q1 2026.

11 $3,016 $2,990 $2,960 $2,983 $2,971 $3,002 $2,992 1Q25 2Q25 3Q25 4Q25 1Q26 4Q25 1Q26 Loans • Loans decreased $10.1 million in Q1 2026, primarily due to a decrease in construction loans, partially offset by increases in 1-4 family and commercial real estate loans. We continue to experience loan payoffs as a result of secondary market refinancings and asset and business sales. • Quarterly average loans decreased $11.3 million compared to Q4 2025. • Commercial real estate loans are well diversified among various industry sectors. • Loan yields were 5.59 percent in both Q1 2026 and Q4 2025. While the yield on the variable-rate loan portfolio is lower in Q1 2026, resulting from declines in the federal funds rate in Q4 2025, the fixed-rate loan portfolio continues to price at higher prevailing market rates. • 39% of the loan portfolio consists of variable-rate loans. Quarterly Highlights 5.52% 5.59% 5.66% 5.59% 5.59% Loans ($ in millions) Average Balances Period End Loan Yield %

12 Loan Mix C & I, 16% CRE - NOO, 34% CRE - OO, 15% Multifamily, 15% 1-4 Family, 5% C & D, 13% Consumer and other, 2% Loan Mix as of March 31, 2026 Total Construction and Development and Commercial Real Estate Loans at March 31, 2026 Sector Balance ($ in thousands) Multifamily $ 589,461 Warehouse & trucking terminals 258,497 Hotels 249,549 Retail 223,835 Office 152,014 Mixed use 125,146 Medical 112,219 Land and land development 108,814 Residential 106,534 Senior care/living 64,531 Other 343,648 Total $ 2,334,248

13 $(94) $(13) $24 $(9) $2 1Q25 2Q25 3Q25 4Q25 1Q26 Credit Quality $0.2 $0.0 $0.0 $0.0 $0.0 1Q25 2Q25 3Q25 4Q25 1Q26 $0.2 $0.0 $0.0 $0.0 $0.0 1Q25 2Q25 3Q25 4Q25 1Q26 $30.5 $30.5 $30.5 $30.5 $30.5 1Q25 2Q25 3Q25 4Q25 1Q26 Net Charge-Offs (Recoveries) ($ in thousands) Substandard Loans ($ in millions) Nonaccrual Loans ($ in millions) Allowance for Credit Losses ($ in millions) 1.01% 1.03% 1.01% 1.02% 1.02% ACL/Loans %

14 Deposits • Total deposits decreased $133.5 million in Q1 2026. The decline in deposits was due to normal cash flow fluctuations of our core depositors. • Brokered deposits decreased $38.1 million in Q1 2026. • Deposit costs decreased 14 bps in Q1 2026 compared to Q4 2025. • West Bank participates in a reciprocal deposit network which enables depositors to receive FDIC insurance coverage on deposits otherwise exceeding the maximum insurable amount. • Estimated uninsured deposits, excluding deposits in a reciprocal deposit network, brokered deposits and public funds protected by state programs, were approximately 27.0% of total deposits at the end of Q1. Quarterly Highlights $3,284 $3,354 $3,334 $3,419 $3,348 $3,468 $3,335 1Q25 2Q25 3Q25 4Q25 1Q26 4Q25 1Q26 Average Balances Deposit Cost % Period End Deposits ($ in millions) 3.15% 3.19% 3.17% 2.89% 2.75% Brokered Deposits, 3% Noninterest- Bearing, 15% Interest-Bearing Demand, 15% Savings and Money Market, 52% Time Deposits, 15% Deposit Mix as of March 31, 2026

15 Funding and Liquidity Cost of liability funding ($ in thousands) Cash and cash equivalents $ 361,978 Unpledged securities 47,027 FHLB borrowing availability 673,525 Unsecured lines of credit availability 75,000 Federal Reserve discount window availability 37,066 Total as of 3/31/2026 $ 1,194,596 $3,676 $3,745 $3,723 $3,806 $3,724 $522 $503 $512 $524 $506 $2,762 $2,851 $2,822 $2,894 $2,842 $392 $391 $389 $388 $376 Average Noninterest-Bearing Deposits Average Interest-Bearing Deposits Average Borrowings 1Q25 2Q25 3Q25 4Q25 1Q26 3.25% 3.28% 3.26% 3.02% 2.90% Overall Funding Costs Sources of Liquidity West Bank also maintains master brokered deposit agreements with brokerage firms and deposit networks. ($ in millions)

16 9.0% 9.3% 9.4% 9.6% 9.8% 12.0% 12.3% 12.3% 12.4% 12.6% 1Q25 2Q25 3Q25 4Q25 1Q26 8.4% 8.3% 8.5% 8.4% 8.7% 10.5% 10.4% 10.5% 10.4% 10.7% 1Q25 2Q25 3Q25 4Q25 1Q26 9.6% 9.9% 9.9% 10.1% 10.4% 12.0% 12.3% 12.3% 12.4% 12.6% 1Q25 2Q25 3Q25 4Q25 1Q26 12.2% 12.5% 12.5% 12.8% 13.0%12.9% 13.2% 13.2% 13.4% 13.5% 1Q25 2Q25 3Q25 4Q25 1Q26 Regulatory Capital Ratios Note: Lines depict regulatory requirements to be considered well-capitalized.Consolidated West Bank Total Risk-Based Capital Ratio Tier 1 Capital Ratio Common Equity Tier 1 Ratio Tier 1 Leverage Ratio 6.5% 10% 8% 5%

17Appendix Appendix Non-GAAP Financial Measures (in thousands) As of and for the Quarter Ended March 31, 2026 December 31, 2025 September 30, 2025 June 30, 2025 March 31, 2025 Reconciliation of net interest income and net interest margin on a FTE basis to GAAP: Net interest income (GAAP) $ 24,385 $ 24,206 $ 22,501 $ 21,419 $ 20,855 Tax-equivalent adjustment (1) 72 70 61 59 66 Net interest income on a FTE basis (non-GAAP) 24,457 24,276 22,562 21,478 20,921 Average interest-earning assets 3,821,463 3,893,827 3,790,154 3,799,081 3,717,441 Net interest margin on a FTE basis (non-GAAP) 2.59 % 2.47 % 2.36 % 2.27 % 2.28 % Reconciliation of efficiency ratio on an adjusted and FTE basis to GAAP: Net interest income on a FTE basis (non-GAAP) $ 24,457 $ 24,276 $ 22,562 $ 21,478 $ 20,921 Noninterest income 2,554 (892) 2,503 2,410 2,243 Adjustment for realized securities losses, net — 3,959 — — — Adjustment for losses on disposal of premises and equipment, net 2 — — — 8 Adjusted income 27,013 27,343 25,065 23,888 23,172 Noninterest expense 13,465 13,729 13,550 13,485 13,063 Efficiency ratio on an adjusted and FTE basis (non- GAAP) (2) 49.85 % 50.21 % 54.06 % 56.45 % 56.37 % (1) Computed on a tax-equivalent basis using a federal income tax rate of 21 percent, adjusted to reflect the effect of the nondeductible interest expense associated with owning tax-exempt securities and loans. Management believes the presentation of this non-GAAP measure provides supplemental useful information for proper understanding of the financial results, as it enhances the comparability of income arising from taxable and nontaxable sources. (2) The efficiency ratio expresses noninterest expense as a percent of fully taxable equivalent net interest income and noninterest income, excluding specific noninterest income and expenses. Management believes the presentation of this non-GAAP measure provides supplemental useful information for proper understanding of the Company's financial performance. It is a standard measure of comparison within the banking industry. A lower ratio is more desirable.

XML

Cover	Apr. 23, 2026
Cover [Abstract]
Document Type	8-K
Document Period End Date	Apr. 23, 2026
Entity Registrant Name	WEST BANCORPORATION, INC.
Entity Incorporation, State or Country Code	IA
Entity File Number	0-49677
Entity Tax Identification Number	42-1230603
Entity Address, Address Line One	3330 Westown Parkway
Entity Address, City or Town	West Des Moines
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	50266
City Area Code	515-
Local Phone Number	222-2300
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	Common stock, no par value
Trading Symbol	WTBA
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	false
Entity Central Index Key	0001166928
Amendment Flag	false