SOUTHERN MISSOURI BANCORP, INC. New Standards Disclosure

The following paragraphs summarize the impact of new accounting pronouncements:

In January 2021, the FASB published ASU 2021-01, “Reference Rate Reform. (Topic 848)”. ASU 2021-01 clarified that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. The ASU also amended the expedients and exceptions in Topic 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. An entity may elect to apply the amendments in this update on a full retrospective basis as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or on a prospective basis to new modifications from any date within an interim period that includes or is subsequent to the date of the issuance of a final update, up to the date that financial statements are available to be issued. If an entity elects to apply any of the amendments in this update for an eligible hedging relationship, any adjustments as a result of those elections must be reflected as of the date the entity applies the election. Originally, the amendments in this update did not apply to contract modifications made after December 31, 2022, new hedging relationships entered into after December 31, 2022, and existing hedging relationships evaluated for effectiveness in periods after December 31, 2022 except for hedging relationships existing as of December 31, 2022, that apply certain optional expedients in which the accounting effects are recorded through the end of the hedging relationship (including periods after December 31, 2022). With the issuance of ASU 2022-06 Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, the sunset date for adoption of ASU 2021-01 was extended from December 31, 2022 to December 31, 2024. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.

In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” The amendments in this update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. The amendments in this update do not change how a public entity identifies its operating segments, aggregates those operating segments, or applies the quantitative thresholds to determine its reportable segments. The amendments of this ASU are effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. The Company adopted this ASU for the fiscal year beginning July 1, 2024, and the accounting and disclosure of this ASU did not have a material impact on the consolidated financial statements.

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On December 14, 2023, FASB published ASU 2023-02, “Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method.” This ASU permits reporting entities to elect to account for tax equity investments, regardless of the tax credit program for which the income tax credits are received, using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the income tax credits and other income tax benefits received and recognizes the net amortization and income tax credits and other income tax benefits in the income statement as a component of income tax expense. A reporting entity makes an accounting policy election to apply the proportional amortization method on a tax-credit-program-by-tax-credit-program

basis rather than electing to apply the proportional amortization method at the reporting entity level or to individual investments. This ASU also requires specific disclosures of investments that generate income tax credits and other income tax benefits from a tax credit program for which the entity has elected to apply the proportional amortization method. The ASU was effective for fiscal years beginning after December 15, 2023, and was effective for the Company beginning July 1, 2024. The adoption of ASU 2023-02 did not have a material impact on the Company’s consolidated financial statements.

In December 2023, the FASB issued ASU 2023-09, “Income Taxes - Improvements to Income Tax Disclosures (Topic 740)”. ASU 2023-09 was issued to address requests by investors and creditors for enhanced transparency and decision usefulness of income tax disclosures. Public business entities (PBEs) would be required to prepare an annual detailed, tabular tax rate reconciliation. All other entities would be required to provide qualitative disclosure on specific categories and individual jurisdictions that result in significant differences between the statutory and effective tax rates. All entities would be required to annually disclose taxes paid disaggregated by federal, state, and foreign taxes, as well as disaggregating taxes by individual jurisdiction if taxes paid exceed 5% of total income taxes paid. The ASU is effective for PBEs for fiscal years beginning after December 15, 2024. The Company is evaluating the impact of the adoption of ASU 2023-09.

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In November 2024, the FASB issued ASU 2024-03, “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40)”. ASU 2024-03 was issued to improve the disclosures about a public business entity’s expenses and address requests from investors for more detailed information about the types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as cost of sales, SG&A, and research and development). The ASU is effective for PBEs for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. The Company is evaluating the impact of the adoption of ASU 2024-03.