Leslie's, Inc. New Standards Disclosure

Recent Accounting Pronouncements

In September 2025, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2025-06, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 335-40): Targeted Improvements to the Accounting for Internal-Use Software. The guidance modernizes and clarifies the threshold for when an entity is required to start capitalizing software costs and is based on when (i) management has authorized and committed to funding the software project and (ii) it is probable that the project will be completed and the software will be used to perform the function intended. The amendments in ASU 2025-06 are effective for fiscal years beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. We are currently evaluating the ASU to determine its impact on our consolidated financial statements and disclosures; however, we do not expect there to be a material impact.

In January 2025, FASB issued ASU No. 2025-01, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 2020-40): Disaggregation of Income Statement Expenses. This update clarifies the initial effective date for entities that do not have an annual reporting period that ends on December 31 to be the first annual reporting period beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. We are currently evaluating the ASU to determine its impact on our disclosures; however, we do not expect there to be a material impact.

In November 2024, FASB issued ASU No. 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This update requires additional disclosures over certain expenses, including purchases of inventory, employee compensation, depreciation, intangible asset amortization, and other specific expense categories. This standard also requires disclosure of the total amount of selling expenses and the Company's definition of selling expenses. This update is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. We are currently evaluating the ASU to determine its impact on our disclosures; however, we do not expect there to be a material impact.

In December 2023, FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which includes amendments that further enhance income tax disclosures, primarily through standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. This update is effective for annual periods beginning after December 15, 2024, though early adoption is permitted. We are currently evaluating the ASU to determine its impact on our disclosures; however, we do not expect there to be a material impact.

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amended guidance requires incremental reportable segment disclosures, primarily about significant segment expenses. The amendments also require entities with a single reportable segment to provide all disclosures required by these amendments, and all existing segment disclosures. The amendments will be applied retrospectively to all prior periods presented in the financial statements and is effective for fiscal years beginning after December 15, 2023, and interim periods in fiscal years

beginning after December 15, 2024, with early adoption permitted. We adopted this guidance in the fourth quarter of 2025. For additional information, see Note 16—Segment Reporting.

There are other new accounting pronouncements issued by the FASB that we have adopted or will adopt, as applicable. We do not believe any of these new accounting pronouncements have had, or will have, a material impact on our consolidated financial statements or disclosures.