25C · Efficiency upgrades and the $150 audit credit
Energy Efficient Home Improvement Credit
Closed ended — not allowed for property placed in service (or expenditures made) after Dec. 31, 2025; 2025 work is still claimed on 2025 returns (Form 5695)
- Last eligible
- Property placed in service on or before Dec. 31, 2025 (statute: not allowed 'after December 31, 2025'). Note: the IRS 25C page uses both 'through December 31, 2025' and 'before December 31, 2025'; the statute and FS-2025-05 use 'after December 31, 2025'.
- Paid when open
- For 2023-2025: 30% of qualified costs. Annual cap $1,200 for efficiency property and improvements, with sub-limits: exterior doors $250 each / $500 total; windows and skylights $600; home energy audits $150; residential energy property (e.g., central AC, gas/propane/oil water heaters meeting the CEE top tier) up to $600 per item. Separate annual cap of $2,000 for qualified heat pumps, heat pump water heaters, biomass stoves and boilers. No lifetime limit; nonrefundable. Property placed in service in 2025 required the manufacturer's QMID on the return.
- What changed
- Public Law 119-21 (signed July 4, 2025), Sec. 70505, moved the credit's end date from Dec. 31, 2032 to Dec. 31, 2025 (the IRA had extended it through 2032). It also rewrote the oil furnace/boiler definition. IRS FAQ FS-2025-05 (Aug. 21, 2025): 'The credit will not be allowed for any property placed in service after December 31, 2025.' Because of the early termination, manufacturers no longer need to file periodic written reports, though the QMID rule applied to 2025 property.