Accounting Policy (Policy)

9 Months Ended

Sep. 30, 2016

The accompanying unaudited consolidated financial statements of FSB Bancorp, Inc., (“FSB Bancorp”), FSB Community Bankshares, Inc. (“FSB Community”), Fairport Savings Bank (the “Bank”) and its other wholly owned subsidiary, Fairport Wealth Management (collectively, the “Company”), have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information, the instructions for Form 10-Q and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and footnotes necessary for a complete presentation of consolidated financial condition, results of operations and cash flows in conformity with generally accepted accounting principles. In the opinion of management, all adjustments, consisting of normal recurring accruals considered necessary for a fair presentation, have been included. The results are not necessarily indicative of the results that may be expected for the year ending December 31, 2016 or for any future period. References to the Company prior to July 13, 2016 include FSB Community and not FSB Bancorp, whereas after July 13, 2016 references to the Company include FSB Bancorp and not FSB Community.

The Company's consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States and follow practices within the banking industry. Application of these principles requires management to make estimates, assumptions, and judgments that affect the amounts reported in the consolidated financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain policies inherently have a greater reliance on the use of estimates, assumptions, and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions, and judgments are necessary when assets and liabilities are required to be recorded at fair value or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and information used to record valuation adjustments for certain assets and liabilities are based on quoted market prices or are provided by other third-party sources, when available. When third party information is not available, valuation adjustments are estimated in good faith by management.

FSB Bancorp is a Maryland Corporation headquartered in Fairport, New York. On July 13, 2016, FSB Bancorp, completed the conversion and reorganization pursuant to which FSB Community Bankshares, MHC converted to the stock holding company form of organization. FSB Bancorp, the new stock holding company for Fairport Savings Bank, sold 1,034,649 shares of common stock, par value $0.01 per share, at $10.00 per share, for gross offering proceeds of $10.3 million in its stock offering. Additionally, after accounting for conversion related expenses of $1.4 million, which offset gross proceeds, the Company received $8.9 million in net proceeds.

Concurrent with the completion of the conversion and reorganization, shares of common stock of FSB Community owned by public stockholders were exchanged for shares of FSB Bancorp’s common stock so that the former public stockholders of FSB Community owned approximately the same percentage of FSB Bancorp’s common stock as they owned of FSB Community’s common stock immediately prior to the conversion, subject to adjustment as disclosed in the prospectus. Stockholders of FSB Community received 1.0884 shares of FSB Bancorp’s common stock for each share of FSB Community’s stock they owned immediately prior to completion of the transaction. Cash in lieu of fractional shares was paid based on the offering price of $10.00 per share. All share and per share information in this report for periods prior to the conversion have been revised to reflect the 1.0884:1 conversion ratio on shares outstanding, including shares held by FSB Community Bankshares, MHC that were not publicly traded.

New Accounting Pronouncements

On August 19, 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments. This ASU specifically addresses the disclosure requirements on prepared statements of cash flow for eight types of cash receipt or cash payment transactions engaged in by business entities. The FASB considers this Update to be an improvement on current standards as there is diversity at this time in practice in how these types of cash receipts and cash payments are presented and classified in the statement of cash flows. The new guidance is intended to reduce the current diversity in practice of how the following eight types of transactions are classified in the statement of cash flows:

Debt prepayment or debt extinguishment costs;

Settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing;

Contingent consideration payments made after a business combination;

Proceeds from the settlement of insurance claims;

Proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies;

Distributions received from equity method investees;

Beneficial interests in securitization transactions;

Separately identifiable cash flows and application of the Predominance Principle.

For public business entities, such as the Company, the standard is effective for financial statements issued for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, provided that all of the amendments are adopted in the same period. The guidance requires application using a retrospective transition method. The Company does not expect a material impact on its consolidated financial statements of condition, results of operations, or cash flows as a result of the adoption of this Update.