TIGO ENERGY, INC. New Standards Disclosure

Recently Adopted Accounting Pronouncements

In December 2023, the FASB issued ASU No. 2023-09, “Improvements to Income Tax Disclosures” (“Topic 740”). This ASU requires disaggregated information about a reporting entity’s effective tax rate reconciliation as well as additional information on income taxes paid. The ASU is effective on a prospective basis for annual periods beginning after December 15, 2024, although retrospective application is permitted. We have adopted and applied the guidance under the ASU for the year ended December 31, 2025, using the prospective method. See enhanced disclosures in our consolidated statement of cash flows and Note 13. “Income Taxes” in the accompanying notes to the consolidated financial statements for further detail.

Recently issued accounting pronouncements not yet adopted

In July 2025, the FASB issued ASU No. 2025-05 — Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which added a practical expedient that

assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset when estimating expected credit losses for current accounts receivable and current contract assets. The guidance is effective for annual periods beginning after December 15, 2025. The Company plans to adopt this ASU on the effective date and does not expect it to have a material impact on the Company’s financial statements.

In November 2024, the FASB issued ASU 2024-03, “Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (“Subtopic 220-40”): Disaggregation of Income (Loss) Statement Expenses” (“ASU 2024-03”). ASU 2024-03 requires disaggregation of certain costs and expenses included in each relevant expense caption on the Company’s consolidated statements of operations and comprehensive loss in a separate note to the financial statements at each interim and annual reporting period, including amounts of purchases of inventory, employee compensation, depreciation, and intangible asset amortization. ASU 2024-04 is effective fiscal years beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact of adopting ASU 2024-03.

In September 2025, the FASB issued ASU No. 2025-06—Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which removed the language around project stages that was used to assess when costs could be capitalized for an internal-use software. The update also requires internal-use software to be disclosed under the ASC 360 Property, Plant, and Equipment guidance. The guidance is effective for annual periods beginning after December 15, 2027. The Company is currently assessing the impact of this ASU on the Company’s accounting policies and the financial statements.