Home Energy Tax Credits: What Changed After 2025

Identify the Credit and Its End Date

IRS guidance for Public Law 119-21 states that section 25C, the energy efficient home improvement credit, is not allowed for property placed in service after December 31, 2025. Section 25D, the residential clean energy credit, is not allowed for expenditures made after that date.

These are separate provisions. Ask a seller to name the provision behind a claimed benefit. Do not substitute commercial energy-credit rules for residential homeowner rules, or assume that a familiar percentage in an older advertisement still applies.

Distinguish Payment From Completion

The IRS explains that a section 25D expenditure is generally treated as made when original installation is completed. Paying before the deadline does not qualify an installation completed afterward. Construction or reconstruction has a separate timing rule tied to the taxpayer’s original use of the structure.

Make a project timeline using the contract, invoices and completion documents. If dates conflict, ask the installer to clarify its records and take the evidence to a qualified tax professional. A planned completion date and an actual completion date are different facts.

Keep Earlier Work and Carryforwards Separate

Filing a 2025 return during 2026 is different from claiming a credit for work installed in 2026. Eligible earlier work still requires the correct tax-year analysis. The 2025 Form 5695 instructions also address carrying unused residential clean energy credit to 2026.

That carryforward does not reopen the credit for new installations. Section 25C has different rules and no unused-credit carryforward. Ask which prior-year form, remaining amount and limitation apply to your situation instead of treating every energy credit as interchangeable.

Build a Record That Can Be Checked

Collect itemized invoices, product details, installation records and information about rebates or subsidies. For 2025 section 25C claims, some specified property requires a qualified manufacturer identification number. Have the tax preparer identify which documentation applies to each item.

For a new project, request a financial comparison before any assumed benefit. Keep state, local and utility programs on separate lines and verify each with its administrator. Check the IRS form’s tax year and later developments before filing; a page’s recent access date is not the date a tax rule took effect.

Sources And Local Resources

Official sources checked October 17, 2026. Confirm current requirements with the authority responsible for your property.

• IRS: Energy Credit Changes Under Public Law 119-21Fact Sheet 2025-05, issued August 21, 2025: section 25C and 25D termination dates; FAQ 7 explains installation completion and construction timing. Checked October 17, 2026.
• IRS: Instructions for Form 5695 (2025)2025 tax-year instructions: termination, completion-based cost timing, qualified property documentation and unused residential clean energy credit carried to 2026. This is not a 2026 tax-year form.
• IRS: Energy Efficient Home Improvement CreditSection 25C applies through December 31, 2025; property qualifications, nonrefundability and no carryforward. No 2026 installation benefit asserted.
• IRS: Residential Clean Energy CreditUpdated opening eligibility section limits new qualifying installations to December 31, 2025; unused-credit carryforward and qualified-property distinctions.