FS Bancorp, Inc.

Allowance for Credit Losses on Loans

The Company's method for assessing the appropriateness of the ACL includes specific allowances for individually analyzed loans, formula allowance factors for pools of loans, and qualitative considerations which include, among other things, current and forecast economic and environmental factors (e.g., interest rates, growth, economic conditions).

Management estimates the ACL balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The ACL is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers was utilized to create a minimum loss rate.

In its ACL forecasting framework, the Company incorporates forward-looking information using macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses.

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The likelihood of the Company incurring a loss is higher for loans that have been risk-rated as less than satisfactory compared to those graded as satisfactory. Therefore, accurately assessing the risk grading of loans in the portfolio is crucial in determining the calculation and adequacy of the ACL. Drawing on historical loss data, the Company employs reserve rates specific to each unique pool, considering loss and risk grade migration. Consequently, a greater loss estimation factor is applied to less than satisfactory loans within any given pool, as opposed to those last graded as satisfactory. The resulting allowance for each pool is the aggregate of the calculated reserves derived through this methodology.

Certain loans are excluded from collectively evaluated pools and are individually assessed based on management's criteria for specific evaluation. The segregation of these loans is determined through an analysis of identified credits meeting specific criteria. Initially, these loans undergo an individual review to ascertain whether they possess a unique risk profile warranting individual evaluation. Loans where management deem it probable that the borrower will be unable to fulfill all obligations under the original contractual terms are removed from collectively evaluated pools. Subsequently, these loans undergo a specific review and evaluation by management for potential losses, considering sources of repayment, including collateral where applicable. A specified ACL is established as necessary. Any loan placed on nonaccrual, by definition, must undergo individual evaluation; however, not all individually evaluated loans need to be placed on nonaccrual.

Due to the dynamic nature of current economic conditions and the inherent difficulty in predicting future events, management recognizes that the determination of the appropriateness of the ACL could undergo significant changes. Estimating the anticipated amount of credit losses on loans is challenging, given the potential variability in economic conditions and forecasts. The complexity arises from the multitude of factors and inputs considered in estimating the allowance, making it difficult to gauge the impact of changes in any one economic factor. Furthermore, these changes may not occur at the same rate and may not be consistent across all product types. Additionally, changes in factors and inputs may move independently, meaning that improvements in one area may offset deteriorations in others. Despite these challenges, management believes that the ACL was adequate as of December 31, 2025, given the comprehensive consideration of various factors and inputs. However, management remains aware of the potential for changes in economic conditions and the impact they may have on the ACL in the future.

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The ACL on loans is adjusted each period based on a variety of quantitative and qualitative factors. It increases through the provision for credit losses, which is recognized as a current period expense, and decreases through net charge-offs and reversals of previously recorded credit losses. For the year ended December 31, 2025, the provision for credit losses on loans was $9.0 million, compared to $5.6 million for the year ended December 31, 2024.

The increase in the 2025 provision was driven primarily by higher net charge-offs in the commercial real estate and consumer loan portfolios, particularly within indirect home improvement loans. In addition, the ACL on loans increased due to organic loan growth, changes in credit quality, including shifts in classified, past due, and nonperforming loans, and updates to qualitative factors. These increases were partially offset by a $2.3 million charge-off on a single commercial construction loan due to a collateral deficiency. The most significant qualitative adjustment during 2025 related to elevated reserves for commercial construction and consumer lending, reflecting higher levels of past due loans, nonperforming loans, and net charge-offs relative to the prior period. As of December 31, 2025, the ACL on loans was $31.9 million, or 1.20% of gross loans receivable, compared to $31.9 million, or 1.26% of gross loans receivable at December 31, 2024. The decline in the ACL-to-loans ratio primarily reflects the impact of the $2.3 million charge-off on the commercial construction loan; excluding this discrete charge-off, reserve coverage relative to loans increased year over year due to both portfolio and emerging credit trends.

Management continually reviews the adequacy of the ACL on loans and will adjust the provision for credit losses on loans as needed. This ongoing assessment takes into consideration factors such as loan growth, prevailing economic conditions, charge-offs and portfolio composition. It is crucial for management to stay vigilant, as a decline in both national and local economic conditions could result in a material increase in the ACL on loans, which has the potential to adversely affect the Company's financial condition and results of operations.

The following table shows certain credit ratios at or for the periods indicated and each component of the ratio’s calculations:

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The following table shows the allocation of the ACL on loans for each loan category and the percent of ACL to each loan category at the period indicated:

While management believes that the estimates and assumptions used in their determination of the adequacy of the ACL on loans are reasonable, it is important to acknowledge the inherent uncertainties. There is no guarantee that these estimates and assumptions will not be proven incorrect in the future. Additionally, there is the possibility that the actual amount of future provisions may exceed past provisions, and any potential increased provisions could adversely impact the Company’s financial condition and results of operations. Furthermore, the determination of the amount of the Company's ACL on loans is subject to review by bank regulators as part of the routine examination process. The regulators may adjust the ACL based on their judgment and the information available to them at the time of their examination. This regulatory scrutiny adds an additional layer of evaluation and potential adjustment to the Company's credit loss provisions. For additional information on the ACL on loans, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – Comparison of Results of Operations for the Years Ended December 31, 2025 and 2024 – Provision for Credit Losses”, “Notes 1 – Basis of Presentation and Summary of Significant Accounting Policies” and “Note 3 – Loans Receivable and Allowance for Credit Losses on Loans” of the Notes to Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” of this Form 10–K.

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