Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2025
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited interim consolidated financial statements of Union Bankshares, Inc. and Subsidiary (together, the Company) as of September 30, 2025, and for the three and nine months ended September 30, 2025 and 2024, have been prepared in conformity with GAAP for interim financial information, general practices within the banking industry, and the accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 (2024 Annual Report). The Company's sole subsidiary is Union Bank. In the opinion of the Company’s management, all adjustments, consisting only of normal recurring adjustments and disclosures necessary for a fair presentation of the information contained herein, have been made. This information should be read in conjunction with the Company’s 2024 Annual Report. The results of operations for the interim period are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2025, or any future interim period. The Company is a “smaller reporting company” and as permitted under the rules and regulations of the SEC, has elected to provide its consolidated statements of income, comprehensive income, cash flows and changes in stockholders’ equity for a two year, rather than three year, period. The Company has also elected to provide certain other scaled disclosures in this report, as permitted for smaller reporting companies. Certain amounts in the 2024 consolidated financial statements have been reclassified to conform to the current year presentation.
Consolidation	Basis of Presentation The accompanying unaudited interim consolidated financial statements of Union Bankshares, Inc. and Subsidiary (together, the Company) as of September 30, 2025, and for the three and nine months ended September 30, 2025 and 2024, have been prepared in conformity with GAAP for interim financial information, general practices within the banking industry, and the accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 (2024 Annual Report). The Company's sole subsidiary is Union Bank. In the opinion of the Company’s management, all adjustments, consisting only of normal recurring adjustments and disclosures necessary for a fair presentation of the information contained herein, have been made. This information should be read in conjunction with the Company’s 2024 Annual Report. The results of operations for the interim period are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2025, or any future interim period. The Company is a “smaller reporting company” and as permitted under the rules and regulations of the SEC, has elected to provide its consolidated statements of income, comprehensive income, cash flows and changes in stockholders’ equity for a two year, rather than three year, period. The Company has also elected to provide certain other scaled disclosures in this report, as permitted for smaller reporting companies. Certain amounts in the 2024 consolidated financial statements have been reclassified to conform to the current year presentation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740), Improvements to Income Tax Disclosures. This ASU requires public entities, such as the Company, to provide enhanced disclosures on the amount of income taxes paid, disaggregated by type and jurisdiction. The ASU is effective for the Company for 2025 and subsequent annual periods, including interim periods within those annual periods, and is not expected to have a material impact on the Company's consolidated financial statements. In November 2024, the FASB issued ASU No. 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. Under ASU No. 2024-03, public business entities, such as the Company, will be required to disclose in the notes to their financial statements disaggregated information about certain costs and expenses in both annual and interim filings. ASU 2024-03 is effective for the Company for annual reporting periods beginning after December 15, 2026, including interim periods within those annual periods, and is not expected to have a material impact on the Company's consolidated financial statements.
Loans	Loans Loans receivable that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their unpaid principal balances, adjusted for any charge-offs, the ACL, and any deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans. Loan interest income is accrued daily on outstanding balances. The following accounting policies, related to accrual and nonaccrual loans, apply to all portfolio segments and loan classes, which the Company considers to be the same. The accrual of interest is normally discontinued when a loan is specifically determined to be impaired and/or management believes, after considering collection efforts and other factors, that the borrower's financial condition is such that collection of interest is doubtful. In general, loans that are 90 days or more past due are placed in nonaccrual, unless there are circumstances that cause management to believe the collection of interest is not doubtful. Generally, any unpaid interest previously accrued on those loans is reversed against current period interest income. A loan may be restored to accrual status when its financial status has significantly improved and there is no principal or interest past due. A loan may also be restored to accrual status if the borrower makes six consecutive monthly payments or the lump sum equivalent. Income on nonaccrual loans is generally not recognized unless a loan is returned to accrual status or after all principal has been collected. Interest payments received on such loans are generally applied as a reduction of the loan principal balance. Delinquency status is determined based on contractual terms for all portfolio segments and loan classes. Loans past due 30 days or more are considered delinquent. Loans are considered in process of foreclosure when a judgment of foreclosure has been issued by the court. Loan origination fees and direct loan origination costs are deferred and amortized as an adjustment of the related loan's yield using methods that approximate the interest method. The Company generally amortizes these amounts over the estimated average life of the related loans.
Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures	Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures The level of the ACL on loans represents management's estimate of expected credit losses over the expected life of the loans at the balance sheet date. For all loan segments, loan losses are charged against the ACL on loans when management believes the loan balance is uncollectible or in accordance with federal guidelines. Subsequent recoveries, if any, are credited to the ACL on loans. The ACL on loans is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on the loans. The ACL on loans is comprised of reserves measured on a collective (pool) basis based on a lifetime loss-rate model when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis, generally larger non-accruing commercial loans. The Company uses the DCF method to estimate expected credit losses for all loan pools. For each of the loan segments, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, and loss rates. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical benchmark data. The Company uses regression analysis of historical internal and peer data to determine suitable loss drivers to utilize when modeling lifetime loss rates. This analysis also determines how expected loss rates will react to forecasted levels of the loss drivers. For all loan pools utilizing the DCF method, management utilizes and forecasts national unemployment as a loss driver. For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four-quarter forecast period. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level that represents the sum of expected losses to determine the estimated ACL on loans. The ACL on loans evaluation also considers various qualitative factors, including changes in policy and/or underwriting standards, actual or expected changes in economic trends and conditions, changes in the nature and volume of the portfolio, changes in credit and lending staff/administration, problem loan trends, credit risk concentrations, loan review results, changes in the value of underlying collateral for loans, and changes in the regulatory and business environment. Certain loans are individually evaluated for estimated credit losses, including those greater than $500 thousand that are classified as substandard or doubtful and are on nonaccrual or that have other unique characteristics differing from the segment. Specific reserves are established when appropriate for such loans based on the present value of expected future cash flows of the loan or the estimated realizable value of the collateral, if any. Risk characteristics relevant to each portfolio segment are as follows: •Residential real estate - Loans in this segment are collateralized by owner-occupied 1-4 family residential real estate, second and vacation homes, 1-4 family investment properties, home equity and second mortgage loans. Repayment is dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment rates and housing prices, could have an effect on the credit quality of this segment. •Construction real estate - Loans in this segment include residential and commercial construction properties, commercial real estate development loans (while in the construction phase of the projects), land and land development loans. Repayment is dependent on the credit quality of the individual borrower and/or the underlying cash flows generated by the properties being constructed. The overall health of the economy, including unemployment rates, housing prices, vacancy rates and material costs, could have an effect on the credit quality of this segment. •Commercial real estate - Loans in this segment are primarily properties occupied by businesses or income-producing properties. The underlying cash flows generated by the properties may be adversely impacted by a downturn in the economy as evidenced by a general slowdown in business or increased vacancy rates which, in turn, could have an effect on the credit quality of this segment. Management requests business financial statements at least annually and monitors the cash flows of these loans. •Commercial - Loans in this segment are made to businesses and are generally secured by non-real estate assets of the business. Repayment is expected from the cash flows of the business. A weakened economy, and resultant decreased consumer or business spending, could have an effect on the credit quality of this segment. •Consumer - Loans in this segment are made to individuals for personal expenditures, such as automobile purchases, and include unsecured loans. Repayment is primarily dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment, could have an effect on the credit quality of this segment. •Municipal - Loans in this segment are made to municipalities located within the Company's service area. Repayment is primarily dependent on taxes or other funds collected by the municipalities. Management considers there to be minimal risk surrounding the credit quality of this segment.
Other Comprehensive Income (Loss)	Other Comprehensive Income Accounting principles generally require recognized revenue, expenses, gains and losses be included in net income or loss. Certain changes in assets and liabilities, such as the after tax effect of unrealized gains and losses on investment securities AFS that have not been recorded through an ACL are not reflected in the consolidated statements of income. The cumulative effect of such items, net of tax effect, is reported as a separate component of the equity section of the consolidated balance sheets (Accumulated OCI). OCI, along with net income, comprises the Company's total comprehensive income or loss.
Fair Value Measurement	Fair Value Measurement The Company utilizes FASB ASC Topic 820, Fair Value Measurement, as guidance for accounting for assets and liabilities carried at fair value. This standard defines fair value as the price that would be received, without adjustment for transaction costs, to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is a market based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. The guidance in FASB ASC Topic 820 establishes a three-level fair value hierarchy, which prioritizes the inputs used in measuring fair value. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The three levels of the fair value hierarchy are: •Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; •Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; •Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).
Fair Value Measurement	The following is a description of the valuation methodologies used for the Company’s assets that are measured on a recurring basis at estimated fair value: Investment securities AFS: Certain U.S. Treasury notes have been valued using unadjusted quoted prices from active markets and therefore have been classified as Level 1. However, the majority of the Company’s AFS securities have been valued utilizing Level 2 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include market maker bids, quotes and pricing models. Inputs to the pricing models include recent trades, benchmark interest rates, spreads and actual and projected cash flows. Mutual funds: Mutual funds have been valued using unadjusted quoted prices from active markets and therefore have been classified as Level 1.

Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2025

The accompanying unaudited interim consolidated financial statements of Union Bankshares, Inc. and Subsidiary (together, the Company) as of September 30, 2025, and for the three and nine months ended September 30, 2025 and 2024, have been prepared in conformity with GAAP for interim financial information, general practices within the banking industry, and the accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 (2024 Annual Report). The Company's sole subsidiary is Union Bank. In the opinion of the Company’s management, all adjustments, consisting only of normal recurring adjustments and disclosures necessary for a fair presentation of the information contained herein, have been made. This information should be read in conjunction with the Company’s 2024 Annual Report. The results of operations for the interim period are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2025, or any future interim period.

The Company is a “smaller reporting company” and as permitted under the rules and regulations of the SEC, has elected to provide its consolidated statements of income, comprehensive income, cash flows and changes in stockholders’ equity for a two year, rather than three year, period. The Company has also elected to provide certain other scaled disclosures in this report, as permitted for smaller reporting companies. Certain amounts in the 2024 consolidated financial statements have been reclassified to conform to the current year presentation.

Consolidation

Basis of Presentation

Recent Accounting Pronouncements

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740), Improvements to Income Tax Disclosures. This ASU requires public entities, such as the Company, to provide enhanced disclosures on the amount of income taxes paid, disaggregated by type and jurisdiction. The ASU is effective for the Company for 2025 and subsequent annual periods, including interim periods within those annual periods, and is not expected to have a material impact on the Company's consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. Under ASU No. 2024-03, public business entities, such as the Company, will be required to disclose in the notes to their financial statements disaggregated information about certain costs and expenses in both annual and interim filings. ASU 2024-03 is effective for the Company for annual reporting periods beginning after December 15, 2026, including interim periods within those annual periods, and is not expected to have a material impact on the Company's consolidated financial statements.

Loans

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

Loan interest income is accrued daily on outstanding balances. The following accounting policies, related to accrual and nonaccrual loans, apply to all portfolio segments and loan classes, which the Company considers to be the same. The accrual of

interest is normally discontinued when a loan is specifically determined to be impaired and/or management believes, after considering collection efforts and other factors, that the borrower's financial condition is such that collection of interest is doubtful. In general, loans that are 90 days or more past due are placed in nonaccrual, unless there are circumstances that cause management to believe the collection of interest is not doubtful. Generally, any unpaid interest previously accrued on those loans is reversed against current period interest income. A loan may be restored to accrual status when its financial status has significantly improved and there is no principal or interest past due. A loan may also be restored to accrual status if the borrower makes six consecutive monthly payments or the lump sum equivalent. Income on nonaccrual loans is generally not recognized unless a loan is returned to accrual status or after all principal has been collected. Interest payments received on such loans are generally applied as a reduction of the loan principal balance. Delinquency status is determined based on contractual terms for all portfolio segments and loan classes. Loans past due 30 days or more are considered delinquent. Loans are considered in process of foreclosure when a judgment of foreclosure has been issued by the court.

Loan origination fees and direct loan origination costs are deferred and amortized as an adjustment of the related loan's yield using methods that approximate the interest method. The Company generally amortizes these amounts over the estimated average life of the related loans.

Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures

The level of the ACL on loans represents management's estimate of expected credit losses over the expected life of the loans at the balance sheet date. For all loan segments, loan losses are charged against the ACL on loans when management believes the loan balance is uncollectible or in accordance with federal guidelines. Subsequent recoveries, if any, are credited to the ACL on loans.

The ACL on loans is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on the loans. The ACL on loans is comprised of reserves measured on a collective (pool) basis based

on a lifetime loss-rate model when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis, generally larger non-accruing commercial loans.

The Company uses the DCF method to estimate expected credit losses for all loan pools. For each of the loan segments, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, and loss rates. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical benchmark data.

The Company uses regression analysis of historical internal and peer data to determine suitable loss drivers to utilize when modeling lifetime loss rates. This analysis also determines how expected loss rates will react to forecasted levels of the loss drivers. For all loan pools utilizing the DCF method, management utilizes and forecasts national unemployment as a loss driver.

For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four-quarter forecast period.

The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level that represents the sum of expected losses to determine the estimated ACL on loans.

The ACL on loans evaluation also considers various qualitative factors, including changes in policy and/or underwriting standards, actual or expected changes in economic trends and conditions, changes in the nature and volume of the portfolio, changes in credit and lending staff/administration, problem loan trends, credit risk concentrations, loan review results, changes in the value of underlying collateral for loans, and changes in the regulatory and business environment.

Certain loans are individually evaluated for estimated credit losses, including those greater than $500 thousand that are classified as substandard or doubtful and are on nonaccrual or that have other unique characteristics differing from the segment. Specific reserves are established when appropriate for such loans based on the present value of expected future cash flows of the loan or the estimated realizable value of the collateral, if any.

Risk characteristics relevant to each portfolio segment are as follows:

•Residential real estate - Loans in this segment are collateralized by owner-occupied 1-4 family residential real estate, second and vacation homes, 1-4 family investment properties, home equity and second mortgage loans. Repayment is dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment rates and housing prices, could have an effect on the credit quality of this segment.

•Construction real estate - Loans in this segment include residential and commercial construction properties, commercial real estate development loans (while in the construction phase of the projects), land and land development loans. Repayment is dependent on the credit quality of the individual borrower and/or the underlying cash flows generated by the properties being constructed. The overall health of the economy, including unemployment rates, housing prices, vacancy rates and material costs, could have an effect on the credit quality of this segment.

•Commercial real estate - Loans in this segment are primarily properties occupied by businesses or income-producing properties. The underlying cash flows generated by the properties may be adversely impacted by a downturn in the economy as evidenced by a general slowdown in business or increased vacancy rates which, in turn, could have an effect on the credit quality of this segment. Management requests business financial statements at least annually and monitors the cash flows of these loans.

•Commercial - Loans in this segment are made to businesses and are generally secured by non-real estate assets of the business. Repayment is expected from the cash flows of the business. A weakened economy, and resultant decreased consumer or business spending, could have an effect on the credit quality of this segment.

•Consumer - Loans in this segment are made to individuals for personal expenditures, such as automobile purchases, and include unsecured loans. Repayment is primarily dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment, could have an effect on the credit quality of this segment.

•Municipal - Loans in this segment are made to municipalities located within the Company's service area. Repayment is primarily dependent on taxes or other funds collected by the municipalities. Management considers there to be minimal risk surrounding the credit quality of this segment.

Other Comprehensive Income (Loss)

Other Comprehensive Income

Accounting principles generally require recognized revenue, expenses, gains and losses be included in net income or loss. Certain changes in assets and liabilities, such as the after tax effect of unrealized gains and losses on investment securities AFS that have not been recorded through an ACL are not reflected in the consolidated statements of income. The cumulative effect of such items, net of tax effect, is reported as a separate component of the equity section of the consolidated balance sheets (Accumulated OCI). OCI, along with net income, comprises the Company's total comprehensive income or loss.

Fair Value Measurement

The Company utilizes FASB ASC Topic 820, Fair Value Measurement, as guidance for accounting for assets and liabilities carried at fair value. This standard defines fair value as the price that would be received, without adjustment for transaction costs, to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is a market based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. The guidance in FASB ASC Topic 820 establishes a three-level fair value hierarchy, which prioritizes the inputs used in measuring fair value. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.

The three levels of the fair value hierarchy are:

•Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

•Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability;

•Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

Fair Value Measurement

The following is a description of the valuation methodologies used for the Company’s assets that are measured on a recurring basis at estimated fair value:

Investment securities AFS: Certain U.S. Treasury notes have been valued using unadjusted quoted prices from active markets and therefore have been classified as Level 1. However, the majority of the Company’s AFS securities have been valued utilizing Level 2 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include market maker bids, quotes and pricing models. Inputs to the pricing models include recent trades, benchmark interest rates, spreads and actual and projected cash flows.

Mutual funds: Mutual funds have been valued using unadjusted quoted prices from active markets and therefore have been classified as Level 1.