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Form 8-K

sec.gov

8-K — Sound Financial Bancorp, Inc.

Accession: 0001541119-26-000022

Filed: 2026-07-29

Period: 2026-07-28

CIK: 0001541119

SIC: 6035 (SAVINGS INSTITUTION, FEDERALLY CHARTERED)

Item: Results of Operations and Financial Condition

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — sfbc-20260728.htm (Primary)

EX-99.1 (a06302026earningsrelease-e.htm)

GRAPHIC (sfbcworkivaercoverpagelogo.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: sfbc-20260728.htm · Sequence: 1

sfbc-20260728

0001541119false00015411192026-07-282026-07-28

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): July 28, 2026

SOUND FINANCIAL BANCORP, INC.

(Exact name of registrant as specified in its charter)

Maryland   001-35633   45-5188530

(State or other jurisdiction of incorporation)   (Commission File No.)   (IRS Employer Identification No.)

2400 3rd Avenue, Suite 150, Seattle, Washington

98121

(Address of principal executive offices)   (Zip Code)

Registrant's telephone number, including area code: (206) 448-0884

(Former name or former address, if changed since last report)

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:

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

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

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

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

Securities 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, $0.01 par value SFBC The NASDAQ Stock Market LLC

Indicated 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 ☐

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

Items to be Included in this Report

Item 2.02.           Results of Operations and Financial Condition.

On July 28, 2026, Sound Financial Bancorp, Inc. (the “Company”), (Nasdaq: SFBC), the holding company of Sound Community Bank, issued its earnings press release announcing financial results for the second quarter and six months ended June 30, 2026. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.

Item 8.01.           Other Events.

On July 28, 2026, the Company announced its Board of Directors declared a cash dividend on Company common stock of $0.21 per share, payable on August 21, 2026 to stockholders of record as of the close of business on August 07, 2026. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01.            Financial Statements and Exhibits.

(d)   Exhibits

The following exhibit is being furnished herewith and this list shall constitute the exhibit index:

99.1

Press Release dated July 28, 2026 announcing second quarter 2026 earnings and regular quarterly cash dividend.

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 thereunto duly authorized.

SOUND FINANCIAL BANCORP, INC.

Date: July 28, 2026

By: /s/ Laura Lee Stewart

Laura Lee Stewart

CEO

EX-99.1

EX-99.1

Filename: a06302026earningsrelease-e.htm · Sequence: 2

Document

Sound Financial Bancorp, Inc. Q2 2026 Results

Seattle, WA, July 28, 2026 — Sound Financial Bancorp, Inc. (the "Company") (Nasdaq: SFBC), the holding company for Sound Community Bank (the "Bank"), today reported net income of $2.5 million for the quarter ended June 30, 2026, or $0.98 diluted earnings per share, compared to net income of $1.6 million, or $0.61 diluted earnings per share, for the quarter ended March 31, 2026, and $2.1 million, or $0.79 diluted earnings per share, for the quarter ended June 30, 2025. Consistent with the Company's commitment to deploy capital thoughtfully, the Company also announced today that its Board of Directors declared a cash dividend on the Company's common stock of $0.21 per share, payable on August 21, 2026 to stockholders of record as of the close of business on August 7, 2026.

Comments from the Chief Executive Officer and President / Chief Financial Officer

“Our mid-year results reflect our continued focus on enhancing financial performance despite ongoing client concerns regarding economic uncertainty, inflation and interest rates. While commercial production slowed during the quarter, saleable residential production grew. As of June 30, 2026, our year-to-date originations of saleable residential loans nearly exceeded our total originations of those loans for all of 2025, representing significant improvement over both last year and 2024,” remarked Laurie Stewart, Chief Executive Officer.

"The second quarter represented a continued step forward in our profitability and balance sheet optimization initiatives. During the quarter, we meaningfully reduced low-rate loans held-for-portfolio, managed down higher-rate reciprocal deposits, repaid FHLB advances, and maintained a loans-to-deposits ratio at quarter-end of approximately 96%. These actions reflect our ongoing focus on profitability, liquidity, and prudent capital deployment,” said Wes Ochs, President and Chief Financial Officer. “We remain focused on generating profitable growth, improving operating efficiency, and deploying capital thoughtfully while maintaining strong liquidity and capital ratios.”

Q2 2026 Financial Performance

Total assets decreased $46.3 million or 4.2% to $1.07 billion at June 30, 2026, from $1.11 billion at March 31, 2026, and increased $7.5 million or 0.7% from $1.06 billion at June 30, 2025.

Net interest income increased $459 thousand or 5.1% to $9.5 million for the quarter ended June 30, 2026, from $9.0 million for the quarter ended March 31, 2026, and increased $251 thousand or 2.7% from $9.3 million for the quarter ended June 30, 2025.

Net interest margin ("NIM"), annualized, was 3.73% for the quarter ended June 30, 2026, compared to 3.51% for the quarter ended March 31, 2026 and 3.67% for the quarter ended June 30, 2025.

Loans held-for-portfolio decreased $29.5 million or 3.2% to $892.0 million at June 30, 2026, compared to $921.5 million at March 31, 2026, and decreased $12.3 million or 1.4% compared to $904.3 million at June 30, 2025.

A $223 thousand release of provision for credit losses was recorded for the quarter ended June 30, 2026, compared to a $123 thousand provision for the quarter ended March 31, 2026, and a $170 thousand provision for the quarter ended June 30, 2025. The allowance for credit losses on loans to total loans outstanding was 0.94% at June 30, 2026, March 31, 2026 and June 30, 2025.

Total deposits decreased $37.6 million or 3.9% to $930.9 million at June 30, 2026, compared to $968.5 million at March 31, 2026, and increased $31.4 million or 3.5% compared to $899.5 million at June 30, 2025. Noninterest-bearing deposits decreased $1.8 million or 1.3% to $129.3 million at June 30, 2026, compared to $131.1 million at March 31, 2026, and increased $5.1 million or 4.1% compared to $124.2 million at June 30, 2025.

Total noninterest income increased $604 thousand or 66.4% to $1.5 million for the quarter ended June 30, 2026, compared to the quarter ended March 31, 2026, and increased $394 thousand or 35.2% compared to the quarter ended June 30, 2025.

The loans-to-deposits ratio was 96.0% at June 30, 2026, compared to 95.4% at March 31, 2026 and 100.8% at June 30, 2025.

Total noninterest expense increased $254 thousand or 3.2% to $8.1 million for the quarter ended June 30, 2026, compared to the quarter ended March 31, 2026, and increased $463 thousand or 6.0% compared to the quarter ended June 30, 2025.

Total nonperforming loans increased $676 thousand or 9.2% to $8.1 million at June 30, 2026, from $7.4 million at March 31, 2026, and increased $4.7 million or 139.3% from $3.4 million at June 30, 2025. Nonperforming loans to total loans was 0.90% and the allowance for credit losses on loans to total nonperforming loans was 104.53% at June 30, 2026.

The Bank maintained capital levels in excess of regulatory requirements and was categorized as "well-capitalized" at June 30, 2026.

1

Operating Results

Net Interest Income after Provision for Credit Losses

For the Quarter Ended Q2 2026 vs. Q1 2026 Q2 2026 vs. Q2 2025

June 30,

2026 March 31,

2026 June 30,

2025 Amount

($) Percentage (%) Amount

($) Percentage (%)

(Dollars in thousands, unaudited)

Interest income $ 14,761  $ 14,465  $ 14,915  $ 296  2.0  % $ (154) (1.0) %

Interest expense 5,255  5,418  5,660  (163) (3.0) % (405) (7.2) %

Net interest income 9,506  9,047  9,255  459  5.1  % 251  2.7  %

(Release of) Provision for credit losses (223) 123  170  (346) (281.3) % (393) (231.2) %

Net interest income after provision for credit losses $ 9,729  $ 8,924  $ 9,085  $ 805  9.0  % $ 644  7.1  %

Q2 2026 vs. Q1 2026

Interest income increased $296 thousand, or 2.0%, to $14.8 million for the quarter ended June 30, 2026, compared to $14.5 million for the quarter ended March 31, 2026. The increase was primarily due to a 16 basis point increase in the average yield on loans and an 18 basis point increase in the average yield on investments, partially offset by lower average balances of loans and interest-bearing cash.

Interest income on loans increased $470 thousand, or 3.5%, to $13.8 million for the quarter ended June 30, 2026, compared to $13.3 million for the quarter ended March 31, 2026. The average balance of total loans was $911.9 million for the quarter ended June 30, 2026, compared to $914.1 million for the quarter ended March 31, 2026. The decrease in the average balance of total loans was primarily due to declines in commercial and multifamily loans, one-to-four family loans and other consumer loans, partially offset by growth in construction and land loans. The average balances for home equity loans, floating home loans and commercial business loans remained relatively unchanged from the prior quarter. The average yield on total loans was 6.06% for the quarter ended June 30, 2026, up from 5.90% for the quarter ended March 31, 2026. This increase in yield was primarily due to new loan originations at higher rates during the current quarter and repayment of loans at lower yields, as well as the collection of a large prepayment penalty on a commercial loan, a non-recurring item of a magnitude that the company does not expect to repeat in future periods.

Interest income on investments was $102 thousand for the quarter ended June 30, 2026, compared to $97 thousand for the quarter ended March 31, 2026. The increase was primarily due to an 18 basis point increase in average yield, partially offset by a decrease in the average balance of investments. Interest income on interest-earning cash decreased to $882 thousand for the quarter ended June 30, 2026, compared to $1.1 million for quarter ended March 31, 2026, reflecting a lower average balance.

Interest expense decreased $163 thousand, or 3.0%, to $5.3 million for the quarter ended June 30, 2026, compared to the quarter ended March 31, 2026. The decrease was primarily the result of lower average balances of savings and money market accounts, certificates of deposit and FHLB advances, together with lower funding costs on deposits. These decreases were partially offset by a higher average balance of demand and NOW accounts. The average cost of deposits declined to 2.15% for the quarter ended June 30, 2026, from 2.19% for the quarter ended March 31, 2026, as higher cost deposits repriced at lower rates in response to declining market interest rates from September 2025 through June 2026. Interest expense on FHLB advances also declined from the prior quarter, primarily reflecting the early repayment of an advance during the current quarter.

Net interest margin, annualized, increased to 3.73% for the quarter ended June 30, 2026, from 3.51% for the quarter ended March 31, 2026, primarily due to an increase in yields earned on loans receivable and investments and lower funding costs, as well as the collection of a large prepayment penalty on a commercial loan mentioned above.

A release of provision for credit losses of $223 thousand was recorded for the quarter ended June 30, 2026, consisting of a release of provision for credit losses on loans of $185 thousand and a release of provision for credit losses on unfunded loan commitments of $38 thousand. This compared to a provision for credit losses of $123 thousand for the quarter ended March 31, 2026, consisting of a provision for credit losses on loans of $49 thousand and provision for credit losses on unfunded loan commitments of $74 thousand. The decrease in the provision for credit losses for the quarter ended June 30, 2026 compared to the quarter ended March 31, 2026 primarily reflects decreases in the balances of loans and unfunded commitments. Other qualitative adjustments were largely applied to the same segments at a similar risk adjustment compared to the quarter ended March 31, 2026. Expected credit loss estimates are based on a range of factors, including market conditions, borrower-specific information, projected delinquencies, and the anticipated effects of economic trends on borrowers' ability to repay.

2

Q2 2026 vs. Q2 2025

Interest income on loans increased $82 thousand, or 0.6%, to $13.8 million for the quarter ended June 30, 2026, compared to $13.7 million for the quarter ended June 30, 2025. The average balance of total loans was $911.9 million for the quarter ended June 30, 2026, up from $895.0 million for the quarter ended June 30, 2025. The average yield on total loans was 6.06% for the quarter ended June 30, 2026, down from 6.14% for the quarter ended June 30, 2025.

Interest income on investments was $102 thousand for the quarter ended June 30, 2026, compared to $123 thousand for the quarter ended June 30, 2025. The decrease was primarily due to a 30 basis point decline in average yield and a decrease in the average balance of investments. Interest income on interest-earning cash decreased $215 thousand to $882 thousand for the quarter ended June 30, 2026, compared to $1.1 million for the quarter ended June 30, 2025. The decrease was primarily a result of a lower average yield, reflecting lower market interest rates, and, to a lesser extent, a lower average balance of interest-earning cash.

Interest expense decreased $405 thousand, or 7.2%, to $5.3 million for the quarter ended June 30, 2026, compared to $5.7 million for the quarter ended June 30, 2025. The decrease was primarily the result of a $16.4 million decrease in the average balance of FHLB advances, a $7.9 million decrease in the average balance of interest-bearing demand and NOW accounts, and a $4.0 million decrease in the average balance of subordinated debt, as well as lower average rates paid on all categories of interest-bearing deposits and borrowings reflecting lower market interest rates, partially offset by a 398 basis point increase in the rate paid on subordinated debt, a $25.9 million increase in savings and money market account balances, and a $9.3 million increase in certificate account balances. During the current quarter, we repaid $10.0 million of FHLB borrowings that were scheduled to mature in January 2028 with an interest rate of 4.06%. During the fourth quarter of 2025, we paid down our subordinated debt by $4.0 million and repaid $15.0 million of FHLB borrowings that were scheduled to mature in January 2026. The average cost of deposits was 2.15% for the quarter ended June 30, 2026, down from 2.34% for the quarter ended June 30, 2025. The average cost of subordinated debt was 9.70% for the quarter ended June 30, 2026, up from 5.72% for the quarter ended June 30, 2025, due to the debt converting to a variable-rate instrument that reprices on a quarterly basis beginning in the fourth quarter of 2025 from the previous fixed-rate period. Subsequent to June 30, 2026, we paid down an additional $2.0 million in subordinated debt as part of our strategic objective to utilize our excess liquidity to pay down high costing debt. The average cost of FHLB advances was 4.21% for the quarter ended June 30, 2026, down from 4.28% for the quarter ended June 30, 2025, due to repayment of $15.0 million of advances during the fourth quarter of 2025 and repayment of $10.0 million of advances at the end of the current quarter.

Net interest margin, annualized, increased to 3.73% for the quarter ended June 30, 2026, from 3.67% for the quarter ended June 30, 2025, reflecting lower funding costs, partially offset by lower interest income.

A release of provision for credit losses of $223 thousand was recorded for the quarter ended June 30, 2026, consisting of a release of provision for credit losses on loans of $185 thousand and a release of provision for credit losses on unfunded loan commitments of $38 thousand. This compared to a provision for credit losses of $170 thousand for the quarter ended June 30, 2025, consisting of a provision for credit losses on loans of $164 thousand and a provision for credit losses on unfunded loan commitments of $6 thousand. The release of provision in the current quarter compared to the same quarter last year resulted primarily from a decrease in loan balances and from annual updates to the model assumptions, partially offset by additional qualitative adjustments applied to the commercial loan segment, reflecting increased uncertainty in market conditions surrounding geopolitical events, in addition to the uncertainty adjustment tied to the impact of tariffs and other external factors affecting our clients already applied to our consumer portfolio. Expected credit loss estimates consider various factors, including market conditions, borrower-specific information, projected delinquencies, and anticipated effects of economic trends on borrowers' ability to repay.

3

Noninterest Income

For the Quarter Ended Q2 2026 vs. Q1 2026 Q2 2026 vs. Q2 2025

June 30,

2026 March 31,

2026 June 30,

2025 Amount

($) Percentage (%) Amount

($) Percentage (%)

(Dollars in thousands, unaudited)

Service charges and fee income $ 684  $ 624  $ 664  $ 60  9.6  % $ 20  3.0  %

Earnings on bank-owned life insurance (“BOLI”) 277  130  229  147  113.1  % 48  21.0  %

Mortgage servicing income 245  248  263  (3) (1.2) % (18) (6.8) %

Fair value adjustment on mortgage servicing rights 119  (140) (80) 259  (185.0) % 199  (248.8) %

Net gain on sale of loans 112  101  44  11  10.9  % 68  154.5  %

Other income 77  (53) —  130  (245.3) % 77  —  %

Total noninterest income $ 1,514  $ 910  $ 1,120  $ 604  66.4  % $ 394  35.2  %

Q2 2026 vs. Q1 2026

Noninterest income during the second quarter of 2026 increased $604 thousand, or 66.4%, compared to the quarter ended March 31, 2026. The increase was primarily due to the following changes in certain income categories:

•a $259 thousand increase in the fair value adjustment on mortgage servicing rights, primarily due to changes in market valuation assumptions, including slower estimated prepayment speeds resulting from higher market interest rates, partially offset by the impact of a smaller servicing portfolio;

•a $147 thousand increase in earnings on BOLI, primarily due to higher market valuation in the current quarter;

•a $130 thousand increase in other income due to the receipt of a dividend paid from our equity investment in the second quarter, as well as lower costs associated with closing our Tacoma branch; and

•a $60 thousand increase in service charges and fee income, primarily due to higher interchange income, partially related to seasonal increases in debit card transaction activity, and higher fees related to past due loans and loan payoff activity.

Loans sold during the quarter ended June 30, 2026, totaled $7.3 million, compared to $6.1 million during the quarter ended March 31, 2026. The increase was primarily due to seasonal fluctuations in loan origination volume and the timing of loan sales.

Q2 2026 vs. Q2 2025

Noninterest income increased $394 thousand, or 35.2% during the current quarter compared to the quarter ended June 30, 2025, primarily as a result of:

•a $199 thousand improvement in the fair value adjustment on mortgage servicing rights, primarily due to changes in valuation assumptions, including an increase in the cost of servicing assumption recorded in the prior year quarter and slower estimated prepayment speeds resulting from higher market interest rates during the current quarter, partially offset by the impact of a smaller servicing portfolio;

•a $77 thousand increase in other income due to same reason noted above in the sequential quarter; and

•a $68 thousand increase in net gain on sale of loans due to an increase in the volume of loans sold.

4

Noninterest Expense

For the Quarter Ended Q2 2026 vs. Q1 2026 Q2 2026 vs. Q2 2025

June 30,

2026 March 31,

2026 June 30,

2025 Amount

($) Percentage (%) Amount

($) Percentage (%)

(Dollars in thousands, unaudited)

Salaries and benefits $ 4,645  $ 4,458  $ 4,321  $ 187  4.2  % $ 324  7.5  %

Operations 1,617  1,501  1,443  116  7.7  % 174  12.1  %

Regulatory assessments 129  198  222  (69) (34.8) % (93) (41.9) %

Occupancy 388  427  416  (39) (9.1) % (28) (6.7) %

Data processing 1,332  1,287  1,254  45  3.5  % 78  6.2  %

Net loss (gain) on OREO and repossessed assets 17  3  9  14  466.7  % 8  88.9  %

Total noninterest expense $ 8,128  $ 7,874  $ 7,665  $ 254  3.2  % $ 463  6.0  %

Q2 2026 vs. Q1 2026

The increase in noninterest expense during the current quarter compared to the quarter ended March 31, 2026 was primarily related to:

•a $187 thousand increase in salaries and benefits due to the impact of higher market valuations of investments supporting our deferred compensation arrangements for key executives (which was partially offset by increases in BOLI income recorded in noninterest income), partially offset by lower base salary expense and lower incentive compensation expense;

•a $116 thousand increase in operations expense, primarily due to higher costs associated with our debit card processing and higher charitable contributions in the current quarter;

•a $45 thousand increase in data processing expense, primarily due to higher processing costs related to annual increases in software vendor contracts and increased application programming interface ("API") and usage charges.

These increases were partially offset by:

•a $69 thousand decrease in regulatory assessments primarily due to the release of an accrual related to exam costs as the actual costs incurred were lower than previously estimated; and

•a $39 thousand decrease in occupancy due to the closure of our Tacoma branch and repair work performed in connection with the decommissioning of ITMs in the prior quarter.

Q2 2026 vs. Q2 2025

The increase in noninterest expense during the current quarter compared to the quarter ended June 30, 2025 was primarily related to:

•a $324 thousand increase in salaries and benefits due to annual wage increases, lower deferred loan origination costs due to smaller loan growth, higher market valuations on our deferred compensation for key executives (which was partially offset by the increase in income on BOLI recorded in noninterest income), and higher medical expense due to overall higher medical costs, partially offset by lower stock compensation expense and lower incentive compensation expense;

•a $174 thousand increase in operations expense, primarily due to higher costs associated with our debit card processing; and

•a $78 thousand increase in data processing expense, primarily due to higher processing costs related to annual increases in software vendor contracts, increased API and usage charges and partially due to the addition of new features, such as fraud detection software, with the goal of lowering operational losses.

These increases were partially offset by:

•a $93 thousand decrease in regulatory assessments, primarily due to reduced quarterly assessments resulting from a lower rate applied to a lower average asset balance and the release of an accrual related to exam costs as actual costs incurred were lower than previously estimated; and

•a $28 thousand decrease in occupancy expense, primarily due to lower building lease charges in 2026 following the closure of our Tacoma branch during the second quarter of 2026.

5

Balance Sheet Review, Capital Management and Credit Quality

Assets totaled $1.07 billion at June 30, 2026, down from $1.11 billion at March 31, 2026 and up from $1.06 billion at June 30, 2025. The decrease from March 31, 2026 was primarily a result of a lower balance of loans held-for-portfolio and lower balances of cash and cash equivalents. The increase from June 30, 2025 was primarily a result of higher balances of cash and cash equivalents and a new equity investment in the first quarter of 2026, partially offset by lower balance of loans held-for-portfolio.

Cash and cash equivalents decreased $17.9 million, or 13.0%, to $120.1 million at June 30, 2026, compared to $138.0 million at March 31, 2026, and increased $17.5 million, or 17.1%, from $102.5 million at June 30, 2025. The decrease from March 31, 2026 primarily relates to a decrease in deposit balances and early repayment of $10.0 million in FHLB borrowings that were scheduled to mature in January 2028, partially offset by a decrease in loans held-for-portfolio. The increase from June 30, 2025 was primarily due to higher deposit balances and a decrease in loans held-for-portfolio, partially offset by a new equity investment and the repayment of borrowings and subordinated debt during the fourth quarter of 2025 and the current quarter.

Investment securities increased $50 thousand, or 0.5%, to $9.5 million at June 30, 2026, compared to $9.4 million at March 31, 2026, and decreased $183 thousand, or 1.9%, from $9.6 million at June 30, 2025. Held-to-maturity securities totaled $1.9 million at both June 30, 2026 and March 31, 2026, compared to $2.1 million at June 30, 2025. Available-for-sale securities totaled $7.6 million at June 30, 2026, compared to $7.5 million at both March 31, 2026 and June 30, 2025. The changes in our available-for-sale and held-to-maturity portfolios from March 31, 2026 and June 30, 2025 primarily related to principal paydowns and maturities, partially offset by fair value adjustments on the available-for-sale portfolio.

Loans held-for-portfolio totaled $892.0 million at June 30, 2026, compared to $921.5 million at March 31, 2026 and $904.3 million at June 30, 2025. The decrease from March 31, 2026 was primarily due to a decline in commercial and multifamily loan balances, which consisted primarily of lower rate, long-term loans. The decrease from June 30, 2025 reflected declines in one-to-four family loans, driven by fewer new home loan originations and normal amortization, as well as decreases in commercial and multifamily loans, floating home loans, and other consumer loans. These decreases were partially offset by growth in construction and land loans and home equity loans.

Equity securities totaled $5.0 million at both June 30, 2026 and March 31, 2026, compared to zero at June 30, 2025. The increase primarily related to an investment made during the first quarter of 2026 in a higher yielding Community Reinvestment Act (“CRA”)-eligible workforce housing equity investment. The investment represented a deployment of a portion of our interest-earning cash and partially replaced the reduction in our CRA-eligible available-for-sale debt securities. While equity investments generally carry greater risk than debt securities, the investment represents a relatively small percentage of our total assets.

Nonperforming assets (“NPAs”), which are comprised of nonaccrual loans (including nonperforming modified loans), other real estate owned (“OREO”) and other repossessed assets, increased $624 thousand, or 8.3%, to $8.1 million at June 30, 2026, from $7.5 million at March 31, 2026, and increased $4.4 million, or 121.0%, from $3.7 million at June 30, 2025. The increase from March 31, 2026 was primarily due to the placement of $850 thousand of loans on nonaccrual status, partially offset by loan payoffs, loans returned to accrual status, loan charge-offs, and OREO sales. The increase from one year ago was primarily due to $6.4 million of new nonaccrual loans, partially offset by loan payoffs totaling $1.0 million, loans returned to accrual status, and charge-offs.

Nonperforming loans totaled $8.1 million at June 30, 2026, with commercial and multifamily loans representing $4.2 million, or 52.0% of total nonperforming loans, reflecting a concentration of nonperforming loans within in larger relationships. One-to-four family nonperforming loans totaled $2.5 million, or 30.5% of total nonperforming loans, and the remaining balance of nonperforming loans was primarily comprised of manufactured home, home equity, and other consumer loans. OREO and other repossessed assets totaled $47 thousand in June 30, 2026, representing 0.6% of total NPAs.

NPAs to total assets were 0.76%, 0.67% and 0.35% at June 30, 2026, March 31, 2026 and June 30, 2025, respectively. The allowance for credit losses on loans as a percentage of total loans outstanding was 0.94% at June 30, 2026, March 31, 2026 and June 30, 2025. Net loan charge-offs were $30 thousand for the second quarter of 2026, compared to $19 thousand for the first quarter of 2026 and $21 thousand for the second quarter of 2025.

6

The following table summarizes our NPAs at the dates indicated (dollars in thousands, unaudited):

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Nonperforming Loans:

One-to-four family $ 2,458  $ 1,939  $ 1,597  $ 609  $ 1,423

Home equity loans 310  383  187  201  359

Commercial and multifamily 4,191  4,213  3,163  1,065  1,065

Construction and land 159  80  82  103  21

Manufactured homes 696  475  461  476  489

Floating homes —  —  —  —  —

Commercial business —  30  30  —  —

Other consumer 241  259  262  263  9

Total nonperforming loans 8,055  7,379  5,782  2,717  3,366

OREO and Other Repossessed Assets:

One-to-four family —  —  259  259  259

Manufactured homes 47  99  85  85  41

Total OREO and repossessed assets 47  99  344  344  300

Total NPAs $ 8,102  $ 7,478  $ 6,126  $ 3,061  $ 3,666

Percentage of Nonperforming Assets:

One-to-four family 30.3  % 25.9  % 26.1  % 19.9  % 38.8  %

Home equity loans 3.8  5.1  3.1  6.6  9.8

Commercial and multifamily 51.7  56.3  51.6  34.8  29.1

Construction and land 2.0  1.1  1.3  3.4  0.6

Manufactured homes 8.6  6.4  7.5  15.6  13.3

Floating homes —  —  —  —  —

Commercial business —  0.4  0.5  —  —

Other consumer 3.0  3.5  4.3  8.5  0.2

Total nonperforming loans 99.4  98.7  94.4  88.8  91.8

Percentage of OREO and Other Repossessed Assets:

One-to-four family —  —  4.2  8.4  7.1

Manufactured homes 0.6  1.3  1.4  2.8  1.1

Total OREO and repossessed assets 0.6  1.3  5.6  11.2  8.2

Total NPAs 100.0  % 100.0  % 100.0  % 100.0  % 100.0  %

7

The following table summarizes the allowance for credit losses at the dates and for the periods indicated (dollars in thousands, unaudited):

At or For the Quarter Ended:

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Allowance for Credit Losses on Loans

Balance at beginning of period $ 8,635  $ 8,605  $ 8,564  $ 8,536  $ 8,393

(Release of) provision for credit losses during the period (185) 49  68  65  164

Net charge-offs during the period (30) (19) (27) (37) (21)

Balance at end of period $ 8,420  $ 8,635  $ 8,605  $ 8,564  $ 8,536

Allowance for Credit Losses on Unfunded Loan Commitments

Balance at beginning of period $ 222  $ 148  $ 112  $ 122  $ 116

(Release of) provision for credit losses during the period (38) 74  36  (10) 6

Balance at end of period 184  222  148  112  122

Allowance for Credit Losses $ 8,604  $ 8,857  $ 8,753  $ 8,676  $ 8,658

Allowance for credit losses on loans to total loans 0.94  % 0.94  % 0.95  % 0.94  % 0.94  %

Allowance for credit losses to total loans 0.96  % 0.96  % 0.97  % 0.95  % 0.96  %

Allowance for credit losses on loans to total nonperforming loans 104.53  % 117.02  % 148.82  % 315.20  % 253.59  %

Allowance for credit losses to total nonperforming loans 106.82  % 120.03  % 151.38  % 319.32  % 257.22  %

Total deposits decreased $37.6 million, or 3.9%, to $930.9 million at June 30, 2026, from $968.5 million at March 31, 2026, and increased $31.4 million, or 3.5%, from $899.5 million at June 30, 2025. The decrease in total deposits from March 31, 2026 was primarily due to the managed reduction of higher cost reciprocal deposits. The increase from June 30, 2025 was primarily due to growth from new depositors and existing depositors increasing their balances. Noninterest-bearing deposits decreased $1.8 million, or 1.3%, to $129.3 million at June 30, 2026, compared to $131.1 million at March 31, 2026 and increased $5.1 million, or 4.1%, compared to $124.2 million at June 30, 2025. Noninterest-bearing deposits represented 13.9%, 13.5% and 13.8% of total deposits at June 30, 2026, March 31, 2026 and June 30, 2025, respectively.

There were no FHLB advances at June 30, 2026, compared to $10.0 million at March 31, 2026 and $25.0 million at June 30, 2025. The decreases from March 31, 2026 and June 30, 2025 were due to the early repayment of a $10.0 million FHLB advance during the current quarter, which was originally scheduled to mature in January 2028, and the early repayment of a $15.0 million FHLB advance during the fourth quarter of 2025, which was originally scheduled to mature in January 2026. FHLB advances are primarily used to support organic loan growth and maintain liquidity ratios in line with our asset/liability objectives. Subordinated notes, net, totaled $7.8 million at both June 30, 2026 and March 31, 2026, compared to $11.8 million at June 30, 2025. The decrease in subordinated notes reflects a $4.0 million paydown completed on the first scheduled repricing date of October 1, 2025, as part of a our ongoing efforts to reduce higher cost debt. Subsequent to June 30, 2026, we repaid an additional $2.0 million of subordinated debt.

Stockholders’ equity totaled $112.6 million at June 30, 2026, an increase of $2.2 million, or 2.0%, from $110.4 million at March 31, 2026, and an increase of $6.6 million, or 6.2%, from $106.0 million at June 30, 2025. The increase from March 31, 2026 was primarily the result of $2.5 million of net income earned during the current quarter, a $127 thousand decrease in accumulated other comprehensive loss, net of tax, and $49 thousand in share-based compensation, partially offset by the payment of $540 thousand in cash dividends to the Company's stockholders.

8

Sound Financial Bancorp, Inc., a bank holding company, is the parent company of Sound Community Bank, which is headquartered in Seattle, Washington and has full-service branches in Seattle, Mountlake Terrace, Sequim, Port Angeles, Port Ludlow and University Place. Sound Community Bank is a Fannie Mae Approved Lender and Seller/Servicer with one loan production office located in the Madison Park neighborhood of Seattle. For more information, please visit www.soundcb.com.

Forward-Looking Statements Disclaimer

When used in this press release and in documents filed or furnished by Sound Financial Bancorp, Inc. (the "Company") with the Securities and Exchange Commission (the "SEC"), as well as in the Company's other press releases, other public or stockholder communications, and in oral statements made with the approval of an authorized executive officer, the words or phrases "will likely result," "are expected to," "will continue," "is anticipated," "estimate," "project," "intends" or similar expressions are intended to identify "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements, which are based on various underlying assumptions and expectations and are subject to risks, uncertainties and other unknown factors, may include projections of the Company's future financial performance based on its growth strategies and anticipated trends in its business. These statements are only predictions based on the Company's current expectations and projections about future events and may turn out to be wrong because of inaccurate assumptions, the factors listed below or other factors that the Company cannot foresee that could cause the Company's actual results to be materially different from historical results or from any future results expressed or implied by such forward-looking statements. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date made.

Factors that could cause the Company's actual results to differ materially from those expressed or implied by these forward-looking statements and from historical performance include, but are not limited to: adverse impacts to economic conditions in the Company’s local market areas, other markets where the Company has lending relationships, or other aspects of the Company's business operations or financial markets, including, without limitation, as a result of employment levels, labor shortages and the effects of persistent inflation, recessionary pressures or slowing economic growth; changes in interest rate levels and volatility, and the timing and pace of such changes, including actions by the Board of Governors of the Federal Reserve System, which could adversely affect the Company's revenues and expenses, the values of the Company's assets and obligations and the availability and cost of capital and liquidity; the impact of inflation and related monetary and fiscal policy responses, including their effects on consumer and business behavior; the effects of a federal government shutdown, debt ceiling standoff, or other fiscal uncertainty; the impact of bank failures or adverse developments at other banks and related negative publicity about the banking industry on investor and depositor sentiment; changes in consumer spending, borrowing and savings habits; fluctuations in interest rates; the risks of lending and investing activities, including changes in the level and direction of loan delinquencies and write-offs and changes in estimates of the adequacy of the allowance for credit losses; the Company's ability to access cost-effective funding; fluctuations in real estate values and both residential and commercial real estate market conditions; demand for loans and deposits in the Company's market area; secondary market conditions for loans; the Company's ability to implement key growth initiatives and strategic priorities; environmental, social and governance matters; results of examinations of the Company or the Bank by their regulators; increased competition; changes in management's business strategies; the ability to adapt to rapid technological changes, including advancements related to artificial intelligence, digital banking platforms, and cybersecurity; legislation or regulatory changes, including but not limited to changes in capital requirements, banking regulations, tax laws, or consumer protection laws; vulnerabilities in information systems or third-party service providers, including disruptions, breaches, or attacks; geopolitical developments and international conflicts, as well as the imposition of new or increased tariffs and trade restrictions, any of which may disrupt financial markets, global supply chains, commodity prices, or economic activity in specific industry sectors; the effects of climate change, severe weather events, natural disasters, pandemics, epidemics and other public health crises, acts of war or terrorism, domestic political unrest and other external events on our business; and other factors described in the Company's latest Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q and other documents filed with or furnished to the SEC, which are available at www.soundcb.com and on the SEC's website at www.sec.gov.

The Company does not undertake—and specifically disclaims any obligation—to revise any forward-looking statement to reflect the occurrence of anticipated or unanticipated events or circumstances after the date of such statement.

9

CONSOLIDATED INCOME STATEMENTS

(Dollars in thousands, unaudited)

For the Quarter Ended

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Interest income $ 14,761  $ 14,465  $ 14,284  $ 14,652  $ 14,915

Interest expense 5,255  5,418  5,622  5,712  5,660

Net interest income 9,506  9,047  8,662  8,940  9,255

(Release of) provision for credit losses (223) 123  104  55  170

Net interest income after (release of) provision for credit losses 9,729  8,924  8,558  8,885  9,085

Noninterest income:

Service charges and fee income 684  624  649  672  664

Earnings on bank-owned life insurance 277  130  189  225  229

Mortgage servicing income 245  248  253  262  263

Fair value adjustment on mortgage servicing rights 119  (140) (160) (372) (80)

Net gain on sale of loans 112  101  73  94  44

Other income (loss) 77  (53) (137) —  —

Total noninterest income 1,514  910  867  881  1,120

Noninterest expense:

Salaries and benefits 4,645  4,458  3,533  4,259  4,321

Operations 1,617  1,501  1,683  1,483  1,443

Regulatory assessments 129  198  (53) 221  222

Occupancy 388  427  460  431  416

Data processing 1,332  1,287  1,200  1,274  1,254

Net loss on OREO and repossessed assets 17  3  17  8  9

Total noninterest expense 8,128  7,874  6,840  7,676  7,665

Income before provision for income taxes 3,115  1,960  2,585  2,090  2,540

Provision for income taxes 597  384  339  395  488

Net income $ 2,518  $ 1,576  $ 2,246  $ 1,695  $ 2,052

10

CONSOLIDATED INCOME STATEMENTS

(Dollars in thousands, unaudited)

For the Six Months Ended June 30,

2026 2025

Interest income $ 29,225  $ 28,622

Interest expense 10,673  11,295

Net interest income 18,552  17,327

Release of provision for credit losses (100) (33)

Net interest income after release of provision for credit losses 18,652  17,360

Noninterest income:

Service charges and fee income 1,307  1,348

Earnings on bank-owned life insurance 407  423

Mortgage servicing income 493  531

Fair value adjustment on mortgage servicing rights (21) (179)

Net gain on sale of loans 212  93

Other income 24  —

Total noninterest income 2,422  2,216

Noninterest expense:

Salaries and benefits 9,103  8,916

Operations 3,118  2,808

Regulatory assessments 327  442

Occupancy 815  853

Data processing 2,619  2,547

Net loss (gain) on OREO and repossessed assets

20  12

Total noninterest expense 16,002  15,578

Income before provision for income taxes 5,072  3,998

Provision for income taxes 981  779

Net income $ 4,091  $ 3,219

11

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, unaudited)

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

ASSETS

Cash and cash equivalents $ 120,072  $ 137,984  $ 138,453  $ 101,156  $ 102,542

Available-for-sale securities, at fair value 7,575  7,517  7,699  7,637  7,521

Held-to-maturity securities, at amortized cost 1,876  1,884  1,892  1,899  2,113

Equity securities 5,000  5,000  —  —  —

Loans held-for-sale 1,591  281  542  271  2,025

Loans held-for-portfolio 891,969  921,518  905,533  909,715  904,286

Allowance for credit losses - loans (8,420) (8,635) (8,605) (8,564) (8,536)

Total loans held-for-portfolio, net 883,549  912,883  896,928  901,151  895,750

Accrued interest receivable 3,747  3,888  3,771  3,896  3,658

Bank-owned life insurance, net 24,055  23,747  23,327  23,138  22,913

Other real estate owned ("OREO") and other repossessed assets, net 47  99  344  344  300

Mortgage servicing rights, at fair value 4,277  4,096  4,183  4,305  4,638

Federal Home Loan Bank ("FHLB") stock, at cost 670  1,120  1,060  1,735  1,734

Premises and equipment, net 4,127  4,168  4,239  4,421  4,498

Right-of-use assets 2,889  3,133  3,423  3,679  3,933

Other assets 6,249  6,251  6,312  6,531  6,617

TOTAL ASSETS $ 1,065,724  $ 1,112,051  $ 1,092,173  $ 1,060,163  $ 1,058,242

LIABILITIES

Interest-bearing deposits $ 801,541  $ 837,409  $ 816,309  $ 767,554  $ 775,262

Noninterest-bearing deposits 129,340  131,092  132,566  131,389  124,197

Total deposits 930,881  968,501  948,875  898,943  899,459

Borrowings —  10,000  10,000  25,000  25,000

Accrued interest payable 634  496  674  774  634

Lease liabilities 3,103  3,364  3,671  3,943  4,213

Other liabilities 9,597  8,839  10,366  10,146  10,238

Advance payments from borrowers for taxes and insurance 1,119  2,625  1,387  2,116  914

Subordinated notes, net 7,822  7,812  7,801  11,791  11,780

TOTAL LIABILITIES 953,156  1,001,637  982,774  952,713  952,238

STOCKHOLDERS' EQUITY:

Common stock 25  25  25  25  25

Additional paid-in capital 28,846  28,797  28,737  28,665  28,590

Retained earnings 84,496  82,518  81,483  79,724  78,517

Accumulated other comprehensive loss, net of tax (799) (926) (846) (964) (1,128)

TOTAL STOCKHOLDERS' EQUITY 112,568  110,414  109,399  107,450  106,004

TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 1,065,724  $ 1,112,051  $ 1,092,173  $ 1,060,163  $ 1,058,242

12

KEY FINANCIAL RATIOS

(unaudited)

For the Quarter Ended

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Annualized return on average assets 0.94  % 0.58  % 0.84  % 0.63  % 0.78  %

Annualized return on average equity 9.03  % 5.78  % 8.19  % 6.26  % 7.78  %

Annualized net interest margin(1)

3.73  % 3.51  % 3.36  % 3.48  % 3.67  %

Annualized efficiency ratio(2)

73.76  % 79.08  % 71.78  % 78.16  % 73.88  %

(1)Net interest income divided by average interest earning assets.

(2)Noninterest expense divided by total revenue (net interest income and noninterest income).

PER COMMON SHARE DATA

(unaudited)

At or For the Quarter Ended

June 30, 2026 March 31, 2026 December 31, 2025 September 30, 2025 June 30, 2025

Basic earnings per share $ 0.98  $ 0.61  $ 0.87  $ 0.66  $ 0.80

Diluted earnings per share $ 0.98  $ 0.61  $ 0.87  $ 0.66  $ 0.79

Weighted-average basic shares outstanding 2,564,165  2,562,467  2,557,608  2,556,562  2,556,562

Weighted-average diluted shares outstanding 2,574,631  2,574,212  2,574,586  2,575,575  2,577,990

Common shares outstanding at period-end 2,568,043  2,568,043  2,567,953  2,566,069  2,566,069

Book value per share $ 43.83  $ 43.00  $ 42.60  $ 41.87  $ 41.31

13

AVERAGE BALANCE, AVERAGE YIELD EARNED, AND AVERAGE RATE PAID

(Dollars in thousands, unaudited)

The following table presents, for the periods indicated, the total dollar amount of interest income from average interest-earning assets and the resultant yields, as well as the interest expense on average interest-bearing liabilities, expressed both in dollars and rates. Income and yields on tax-exempt obligations have not been computed on a tax equivalent basis. All average balances are daily average balances. Nonaccrual loans have been included in the table as loans carrying a zero yield for the period they have been on nonaccrual (dollars in thousands).

Three Months Ended

June 30, 2026 March 31, 2026 June 30, 2025

Average Outstanding Balance Interest Earned/Paid Yield/Rate Average Outstanding Balance Interest Earned/Paid Yield/Rate Average Outstanding Balance Interest Earned/Paid Yield/Rate

Interest-Earning Assets:

Loans receivable $ 911,869  $ 13,777  6.06  % $ 914,113  $ 13,307  5.90  % $ 895,039  $ 13,695  6.14  %

Interest-earning cash 98,902  882  3.58  % 120,683  1,061  3.57  % 102,572  1,097  4.29  %

Investments

11,566  102  3.54  % 11,701  97  3.36  % 12,842  123  3.84  %

Total interest-earning assets $ 1,022,337  14,761  5.79  % 1,046,497  $ 14,465  5.61  % $ 1,010,453  14,915  5.92  %

Interest-Bearing Liabilities:

Savings and money market accounts $ 370,406  2,177  2.36  % $ 388,633  2,306  2.41  % $ 344,553  2,258  2.63  %

Demand and NOW accounts 130,208  95  0.29  % 125,932  82  0.26  % 138,150  107  0.31  %

Certificate accounts 299,654  2,704  3.62  % 301,341  2,736  3.68  % 290,388  2,860  3.95  %

Subordinated notes 7,819  189  9.70  % 7,808  186  9.66  % 11,777  168  5.72  %

Borrowings 8,571  90  4.21  % 10,556  108  4.15  % 25,007  267  4.28  %

Total interest-bearing liabilities $ 816,658  5,255  2.58  % $ 834,270  5,418  2.63  % $ 809,875  5,660  2.80  %

Net interest income/spread $ 9,506  3.21  % $ 9,047  2.97  % $ 9,255  3.12  %

Net interest margin 3.73  % 3.51  % 3.67  %

Ratio of interest-earning assets to interest-bearing liabilities 125  % 125  % 125  %

Noninterest-bearing deposits $ 128,204  $ 133,691  $ 121,906

Total deposits 928,472  $ 4,976  2.15  % 949,597  $ 5,124  2.19  % 894,997  $ 5,225  2.34  %

Total funding (1)

944,862  5,255  2.23  % 967,961  5,418  2.27  % 931,781  5,660  2.44  %

(1)Total funding is the sum of average interest-bearing liabilities and average noninterest-bearing deposits. The cost of total funding is calculated as total interest expense divided by average total funding.

14

Six Months Ended

June 30, 2026 June 30, 2025

Average Outstanding Balance Interest Earned/Paid Yield/Rate Average Outstanding Balance Interest Earned/Paid Yield/Rate

Interest-Earning Assets:

Loans receivable $ 912,985  $ 27,083  5.98  % $ 895,926  $ 26,283  5.92  %

Interest-earning cash 109,732  1,943  3.57  % 99,304  2,107  4.28  %

Investments

11,634  199  3.45  % 12,883  232  3.63  %

Total interest-earning assets $ 1,034,351  29,225  5.70  % $ 1,008,113  28,622  5.73  %

Interest-Bearing Liabilities:

Savings and money market accounts $ 379,469  4,484  2.38  % $ 338,514  4,317  2.57  %

Demand and NOW accounts 128,082  176  0.28  % 139,520  214  0.31  %

Certificate accounts 300,493  5,440  3.65  % 291,673  5,899  4.08  %

Subordinated notes 7,813  375  9.68  % 11,772  336  5.76  %

Borrowings 9,558  198  4.18  % 25,003  529  4.27  %

Total interest-bearing liabilities $ 825,415  10,673  2.61  % $ 806,482  11,295  2.82  %

Net interest income/spread $ 18,552  3.09  % $ 17,327  2.90  %

Net interest margin 3.62  % 3.47  %

Ratio of interest-earning assets to interest-bearing liabilities 125  % 125  %

Noninterest-bearing deposits $ 130,933  $ 124,048

Total deposits 938,977  $ 10,100  2.17  % 893,755  $ 10,430  2.35  %

Total funding (1)

956,348  10,673  2.25  % 930,530  11,295  2.45  %

(1)Total funding is the sum of average interest-bearing liabilities and average noninterest-bearing deposits. The cost of total funding is calculated as annualized total interest expense divided by average total funding.

15

LOANS

(Dollars in thousands, unaudited)

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Real estate loans:

One-to-four family $ 244,168  $ 251,146  $ 253,841  $ 257,797  $ 262,672

Home equity 32,107  31,903  31,468  29,903  28,582

Commercial and multifamily 381,809  409,810  409,729  408,802  398,429

Construction and land 76,158  71,878  50,261  52,797  49,926

Total real estate loans 734,242  764,737  745,299  749,299  739,609

Consumer loans:

Manufactured homes 42,668  42,968  43,080  42,735  43,112

Floating homes 87,566  84,927  87,315  88,674  91,448

Other consumer 13,832  15,978  16,571  17,031  17,259

Total consumer loans 144,066  143,873  146,966  148,440  151,819

Commercial business loans 15,748  15,164  15,378  14,214  14,779

Total loans 894,056  923,774  907,643  911,953  906,207

Less:

Premiums 583  610  627  644  662

Deferred fees, net (2,670) (2,866) (2,737) (2,882) (2,583)

Allowance for credit losses - loans (8,420) (8,635) (8,605) (8,564) (8,536)

Total loans held-for-portfolio, net $ 883,549  $ 912,883  $ 896,928  $ 901,151  $ 895,750

DEPOSITS

(Dollars in thousands, unaudited)

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Noninterest-bearing demand $ 129,340  $ 131,092  $ 132,566  $ 131,388  $ 124,197

Interest-bearing demand 130,210  130,642  125,634  129,570  137,222

Savings 59,081  58,881  59,478  60,106  61,813

Money market 314,205  345,913  331,604  286,827  282,346

Certificates 298,045  301,973  299,593  291,052  293,881

Total deposits $ 930,881  $ 968,501  $ 948,875  $ 898,943  $ 899,459

16

CREDIT QUALITY DATA

(Dollars in thousands, unaudited)

At or For the Quarter Ended

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Total nonperforming loans $ 8,055  $ 7,379  $ 5,782  $ 2,717  $ 3,366

OREO and other repossessed assets 47  99  344  344  300

Total nonperforming assets $ 8,102  $ 7,478  $ 6,126  $ 3,061  $ 3,666

Net charge-offs during the quarter $ (30) $ (19) $ (27) $ (37) $ (21)

Provision for (release of) credit losses during the quarter (223) 123  104  55  170

Allowance for credit losses - loans 8,420  8,635  8,605  8,564  8,536

Allowance for credit losses - loans to total loans 0.94  % 0.94  % 0.95  % 0.94  % 0.94  %

Allowance for credit losses - loans to total nonperforming loans 104.53  % 117.02  % 148.82  % 315.20  % 253.59  %

Nonperforming loans to total loans 0.90  % 0.80  % 0.64  % 0.30  % 0.37  %

Nonperforming assets to total assets 0.76  % 0.67  % 0.56  % 0.29  % 0.35  %

OTHER STATISTICS

(Dollars in thousands, unaudited)

At or For the Quarter Ended

June 30,

2026 March 31,

2026 December 31,

2025 September 30,

2025 June 30,

2025

Total loans to total deposits 96.04  % 95.38  % 95.65  % 101.45  % 100.75  %

Noninterest-bearing deposits to total deposits 13.89  % 13.54  % 13.97  % 14.62  % 13.81  %

Average total assets for the quarter $ 1,071,897 $ 1,094,501 $ 1,066,451 $ 1,063,972 $ 1,055,881

Average total equity for the quarter $ 111,863 $ 110,575 $ 108,837 $ 107,375 $ 105,803

Contact

Financial:

Wes Ochs

President/CFO

(206) 436-8587

Media:

Laurie Stewart

CEO

(206) 436-1495

17

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v3.26.1

Cover Page

Jul. 28, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

Jul. 28, 2026

Entity Registrant Name

SOUND FINANCIAL BANCORP, INC.

Entity Incorporation, State or Country Code

MD

Entity File Number

001-35633

Entity Tax Identification Number

45-5188530

Entity Address, Address Line One

2400 3rd Avenue,

Entity Address, Address Line Two

Suite 150,

Entity Address, City or Town

Seattle,

Entity Address, State or Province

WA

Entity Address, Postal Zip Code

98121

City Area Code

206

Local Phone Number

448-0884

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common Stock, $0.01 par value

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SFBC

Security Exchange Name

NASDAQ

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Entity Central Index Key

0001541119

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Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

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Cover page.

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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Address Line 1 such as Attn, Building Name, Street Name

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Address Line 2 such as Street or Suite number

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Name of the City or Town

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Code for the postal or zip code

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Name of the state or province.

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- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Indicate if registrant meets the emerging growth company criteria.

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Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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Two-character EDGAR code representing the state or country of incorporation.

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Local phone number for entity.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

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Title of a 12(b) registered security.

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Name of the Exchange on which a security is registered.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

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Trading symbol of an instrument as listed on an exchange.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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