GREAT SOUTHERN BANCORP, INC. New Standards Disclosure

Recent Accounting Pronouncements

In March 2023, the FASB issued ASU 2023-02, Investments – Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. ASU 2023-02 is intended to improve the accounting and disclosures for investments in tax credit structures. ASU 2023-02 allows entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. Previously, this method was only available for qualifying tax equity investments in low-income housing tax credit structures. Currently, the Company does not have a material amount of tax credit structures, other than low-income housing tax credit structures. The adoption of ASU 2023-02 did not have a material impact on the Company’s consolidated financial statements and resulted in a reduction of retained earnings of $223,000 upon adoption on January 1, 2024.

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. ASU 2023-07 expands reportable segment disclosure requirements through enhanced disclosures about significant segment expenses. ASU 2023-07 implements a new requirement to disclose significant segment expenses regularly provided to the chief operating decision maker, expands certain annual disclosures to interim periods, clarifies that single reportable segment entities must apply Topic 280 in its entirety and permits more than one measure of segment profit or loss to be reported under certain conditions. ASU 2023-07 became effective for the Company for our annual financial statements in 2024. See Note 26 – Operating Segments for application of this ASU.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. ASU 2023-09 is focused on additional income tax disclosures and requires public business entities, on an annual basis, to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income by the applicable statutory income tax rate). ASU 2023-09 became effective for the Company beginning with the fiscal year ending December 31, 2025 and did not 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. ASU 2024-03 requires disaggregated disclosure of income statement expenses for public business entities. ASU 2024-03 requires new financial statement disclosures in tabular format, disaggregating information about prescribed categories underlying any relevant income statement expense caption. The prescribed categories include, among other things, employee compensation, depreciation, and intangible asset amortization. Additionally, entities must disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. ASU 2024-03 is effective for us, on a prospective basis, for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, although early adoption and retrospective application is permitted. ASU 2024-03 is currently not expected to have a material impact on the Company’s consolidated financial statements, but will impact disclosures.

In November 2025, the FASB issued ASU No. 2025-08, Financial Instruments – Credit Losses (Topic 326): Purchased Loans. ASU 2025-08 expands the scope of the “gross-up” method, formerly applicable only to purchased credit-deteriorated (PCD) assets, to include acquired non-PCD loans that meet certain criteria, now referred to as “purchased seasoned loans” (PSLs). Under this ASU, an allowance for expected credit losses is recognized at acquisition, offsetting the loan’s amortized cost basis, thereby eliminating the day-one credit-loss expense previously required for non-PCD assets. PSLs are defined as non-PCD loans acquired either (1) through a business combination, or (2) purchased more than 90 days after origination when the acquirer was not involved in origination. ASU 2025-08 is effective for us, on a prospective basis for loans acquired on or after the adoption date, for interim and annual reporting periods beginning in 2027, though early adoption is permitted. ASU 2025-08 is not expected to have a significant impact on the Company’s consolidated financial statements.

In November 2025, the FASB issued ASU No. 2025-09, Derivatives and Hedging (Topic 815): Hedge Accounting Improvements. ASU 2025-09 amends ASC 815 to align hedge accounting more closely with an entity’s economic risk management practices. Key amendments (1) allow designating a variable price component of a nonfinancial forecasted purchase or sale as the hedged risk, (2) allow grouping individual forecasted transactions with similar (not identical) risk exposures, (3) include a new model for hedging forecasted interest on variable-rate debt, enabling changes in index or tenor without dedesignation, subject to simplifying assumptions, and (4) provide additional clarifications related to hedge accounting of nonfinancial components, net written options, and dual-hedge strategies. ASU 2025-09 is effective for us beginning in 2027, though early adoption is permitted. ASU 2025-09 is not expected to have a significant impact on the Company’s consolidated financial statements.

In November 2025, the FASB issued ASU No. 2025-11, Interim Reporting (Topic270): Narrow-Scope Improvements. ASU 2025-11 clarifies and enhances guidance under ASC 270 on interim financial reporting by (1) clarifying the scope of ASC 270 such that it now explicitly applies only to entities that issue complete interim financial statements and related notes under U.S. GAAP, (2) establishing clear guidance on the form of interim statements and notes, incorporating a comprehensive list of required interim disclosures, and (3) introducing a requirement to disclose material events and changes occurring after the end of the last annual period that could impact interim results. ASU 2025-11 is effective for us for interim periods beginning in 2028, though early adoption is permitted. ASU 2025-11 is not expected to have a significant impact on the Company’s consolidated financial statements.