If you have been considering upgrading your homeâs energy efficiency, installing solar panels, or adding battery storage, the clock is ticking. Major federal tax credits that have saved homeowners thousands of dollars over the past several years are now set to expire in a matter of months. Yet, according to recent surveys, a majority of homeowners are still unaware that these incentives exist at all, let alone that they are rapidly disappearing.
This post provides a comprehensive overview of the two most important residential energy tax creditsâthe Energy Efficient Home Improvement Credit under Section 25C of the Internal Revenue Code and the Residential Clean Energy Credit under Section 25Dâincluding their governing law, the regulations implementing them, recent enforcement actions, and the strict compliance requirements homeowners must follow to successfully claim them.
⥠Section 25C: The Energy Efficient Home Improvement Credit
Statutory Framework
The Energy Efficient Home Improvement Credit is codified at 26 U.S.C. § 25C. In simplified terms, the credit allows an individual homeowner to claim an amount equal to 30 percent of the sum of:
- Qualified energy efficiency improvements installed during the taxable year;
- The amount of residential energy property expenditures paid or incurred during the taxable year; and
- Amounts paid for home energy audits.
The credit is nonrefundable, meaning it can reduce your tax liability to zero but cannot generate a refund on its own. Any excess credit cannot be carried forward to future tax years.
Annual & PerâItem Limitations
Section 25C imposes a $1,200 annual aggregate limit for most qualifying improvements. However, the statute includes several important subcaps:
| Category | Credit Limit |
| Exterior windows and skylights | $600 (aggregate) |
| Exterior doors | |
| Home energy audits | $150 |
| Heat pumps, heat pump water heaters, biomass stoves & boilers | $2,000 (aggregate) |
What Qualifies Under Section 25C?
The statute and IRS guidance provide specific definitions for qualifying property. For purposes of qualified energy efficiency improvements, the building envelope component must be:
- Installed in or on a dwelling unit located in the United States and owned and used by the taxpayer as the taxpayerâs principal residence (within the meaning of Section 121 of the Code);
- The original use of the component must commence with the taxpayer; and
- The component must reasonably be expected to remain in use for at least five years.
For exterior windows or skylights, the items must meet ENERGY STAR Most Efficient certification requirements. For exterior doors, they must meet applicable ENERGY STAR requirements. For insulation materials or air sealing systems, they must meet the prescriptive criteria established by the most recent International Energy Conservation Code standard in effect at the start of the year that is two years prior to the year the materials or systems are placed in service.
For residential energy property expenditures, qualifying property includes electric or natural gas heat pumps, heat pump water heaters, biomass stoves and boilers, central air conditioners, natural gas/propane/oil water heaters, natural gas/propane/oil furnaces or hot water boilers, and improvements to panelboards, subpanelboards, branch circuits, or feeders.
Inflation Reduction Act (IRA) Enhancements
Prior to the Inflation Reduction Act of 2022, Section 25C was a far more modest provision with a lifetime credit limit of $500. The IRA fundamentally transformed the credit, effective for taxable years beginning after December 31, 2022, by:
- Increasing the credit rate from 10% to 30% for qualifying expenditures;
- Eliminating the lifetime credit limit and replacing it with an annual limit; and
- Expanding eligibility to include certain new categories of qualifying property and home energy audits.
Importantly, the IRA scheduled Section 25C to remain available for property placed in service through December 31, 2032.
âď¸ Section 25D: The Residential Clean Energy Credit
Statutory Framework
The Residential Clean Energy Credit is codified at 26 U.S.C. § 25D. Unlike Section 25C, which is capped at a few thousand dollars, Section 25D typically offers a 30% credit with no annual or lifetime dollar limit (except for fuel cell property).
The credit allows a homeowner to claim an amount equal to the applicable percentage of qualified expenditures for:
- Qualified solar electric property;
- Qualified solar water heating property;
- Qualified fuel cell property;
- Qualified small wind energy property;
- Qualified geothermal heat pump property; and
- Qualified battery storage technology.
Key Statutory Requirements
- Solar water heating property must be certified for performance by the nonprofit Solar Rating Certification Corporation or a comparable entity endorsed by the state government in which the property is installed.
- Fuel cell property is subject to a perâkilowatt limitationâthe credit cannot exceed $500 with respect to each half kilowatt of capacity.
- Battery storage technology must have a capacity of not less than 3 kilowatt hours to qualify.
The IRAâs Role
The Inflation Reduction Act of 2022 extended the residential clean energy credit through 2034, modified the applicable credit percentage rates, and added battery storage technology as an eligible expenditure category. Under the IRA, the credit rate was set at 30% for property placed in service through 2032, then scheduled to phase down to 26% in 2033 and 22% in 2034.
Under prior law, Section 25D was scheduled to be available for property placed in service through December 31, 2034.
â ď¸ OBBBA: The Sweeping Repeal of Both Credits
What Is OBBBA?
The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, is a major piece of tax legislation that has dramatically accelerated the termination of Bidenâera clean energy tax incentives. The Act is codified at Public Law 119-21, 139 Stat. 72 (July 4, 2025).
Under OBBBA, both Section 25C and Section 25Dâwhich were scheduled to remain available until 2032 and 2034, respectivelyâhave been abruptly terminated far earlier than originally planned by the IRA.
New Termination Deadlines Under OBBBA
Pursuant to OBBBA, the IRS has officially confirmed that:
Section 25C (Energy efficient home improvement credit): The credit will not be allowed for any property placed in service after December 31, 2025.
Section 25D (Residential clean energy credit): The credit will not be allowed for any expenditures made after December 31, 2025.
These termination dates leave homeowners with only a narrow window to complete eligible projects and claim the credits before they are gone forever.
The âPlacedâinâServiceâ Requirement: A Critical Trap for the Unwary
The IRS has clarified that mere payment for qualifying property is insufficient to claim either credit. Under the FAQs issued in Fact Sheet 2025-05, the IRS unequivocally states that the Section 25D credit cannot be claimed for property installed after December 31, 2025, or constructed after that date, even if the taxpayer pays for the property on or before December 31, 2025.
Similarly, for Section 25C, the credit requires that the property be placed in service by December 31, 2025. This means the property must be:
- Installed; and
- Operational (in the case of systems requiring utility approval, such as solar panel interconnection with the grid).
If you simply purchase solar panels in December 2025 but the system does not receive operational approval until February 2026, the installation will have been placed in service after the December 31 deadline, and the purchase likely will not qualify for any tax credit.
IRS Fact Sheet 2025-05
On August 21, 2025, the IRS issued Fact Sheet 2025-05 containing frequently asked questions addressing the accelerated termination of Sections 25C, 25D, 25E, 30C, 30D, 45L, 45W, and 179D under OBBBA. This guidance provides official IRS clarification on the termination dates and confirms that taxpayers cannot circumvent the deadlines by making advance payments. The FAQs are available on the IRS website and represent the authoritative administrative guidance on these provisions.
Additional Guidance: IRS Instructions for Form 5695 (2025)
The IRS has updated the Instructions for Form 5695 (Residential Energy Credits) for the 2025 tax year, confirming:
You canât claim residential clean energy credits for expenditures made after December 31, 2025. You canât claim energy efficient home improvement credits for expenditures or property placed in service after December 31, 2025.
The instructions also reiterate that the credit rate for both credits for property placed in service in 2025 is 30% .
đ Administrative Guidance & Compliance Requirements
The QMID Requirement (Section 25C)
Beginning January 1, 2025, if you are claiming the energy efficient home improvement credit (Section 25C) for specified property placed into service in 2025, you must include the fourâcharacter alphanumeric unique Qualified Manufacturer Identification Number (QMID) for each item on your tax return.
This requirement has significant practical implications: failure to include the QMID for each qualifying item may result in disallowance of the credit. The QMID is assigned by the IRS to qualified manufacturers and should be provided to you by the manufacturer or retailer of the qualifying property. Taxpayers should confirm availability of QMIDs from manufacturers before purchasing or installing property.
Form 5695: The Required Filing Vehicle
Both the Section 25C credit and the Section 25D credit are claimed on IRS Form 5695 (Residential Energy Credits), which must be filed together with your annual tax return (Form 1040 or Form 1040-SR) and Schedule 3 (Additional Credits and Payments).
Basis Reduction Requirement
Both Sections 25C(g) and 25D(f) require taxpayers to reduce the tax basis of their home by the amount of the credit claimed. Because these expenditures and credits affect the basis in property, the standard threeâyear record retention requirement is extendedâapplicable records generally must be retained until after the home is sold.
Labor Cost Eligibility
Not all labor costs are qualified expenditures eligible for the tax credit. For Section 25C, labor costs associated with the installation of qualifying property are generally eligible, but for Section 25D, the treatment of labor costs may vary depending on the specific type of qualifying property. Taxpayers should consult their tax advisor regarding the specific treatment of labor costs in their particular circumstances.
Expiration of Periodic Reporting Requirements
The IRS has confirmed that because of the accelerated termination of the Section 25C credit, periodic written reports, including reporting for property placed in service before January 1, 2026, are no longer required.
âď¸ Case Law: Interpreting âRenewable Energy Source Propertyâ
While the current statutory framework (Sections 25C and 25D) dates primarily from 2005 with significant amendments by the IRA in 2022, the Tax Court has addressed analogous predecessor provisions in several important decisions. These cases provide guidance on how the courts interpret ambiguous terms in energy credit statutesâand serve as a cautionary tale for aggressive tax return positions.
Laxson v. Commissioner, 1986 T.C. Memo. 291
In Laxson, the sole issue for the Tax Court was whether the petitionersâ cooling system qualified as renewable energy source property entitling them to a residential energy credit for 1981. The taxpayers claimed a geothermal energy credit, but the Tax Court disallowed the claimed credit in its entirety, emphasizing that the statutory definition of qualifying property must be strictly construed.
Newborn v. Commissioner, 94 T.C. 610 (1990)
In Newborn, the taxpayers claimed a residential energy tax credit for a system that used direct solar energy derived through heat stored in groundwater. The Tax Court denied the credit, holding that the system did not meet the statutory definition of qualifying renewable energy source property under the applicable statute.
Practical Takeaway for Taxpayers: Both credit provisions should be interpreted strictly. Taxpayers are wellâadvised to carefully review IRS guidance and, where any ambiguity exists, consult with a tax professional rather than assert an aggressive position that may ultimately be rejected by the IRS or the Tax Court.
IRS Criminal Enforcement
The IRS has also pursued criminal penalties against tax return preparers who fabricated energyârelated expenses for clients on Form 5695. In United States v. Jacob, the former owner of a tax preparation business pleaded guilty to criminal charges for preparing false tax returns, including making up energy expenses listed on her clientsâ returns. This serves as a reminder that while the credits are valuable, they must be claimed honestly and in compliance with all legal requirements.
đ HighâEfficiency Electric Home Rebate Act (HEEHRA)
It is important to distinguish between the tax credits discussed above and the rebate program established under the Inflation Reduction Act.
The HighâEfficiency Electric Home Rebate Act (HEEHRA) , codified at Section 50122 of Public Law 117-169 (42 U.S.C. 18795a) , provides pointâofâsale rebates to lowâ and moderateâincome households for the purchase of highâefficiency electric appliances, including heat pumps, electric stoves, and dryers, as well as for electrical upgrades.
Unlike tax credits, which are claimed on Form 5695, HEEHRA rebates are administered at the state level through State Energy Offices. However, HEEHRA requirements also impose important deadlines: all HEEHRA projects must be installed and invoiced by December 31, 2025, to allow homeowners to also take advantage of the Section 25C federal tax credit, which expires at the end of the year.
Important Distinction: In most cases, federal tax credits (including Section 25C) can be claimed on your tax return regardless of whether you also received a cash rebate from your utility provider, your state, or through HEEHRA. However, your cost in calculating the credit is generally reduced by any public utility subsidies you receive, though it is typically not reduced by state energyâefficiency incentives.
đ Summary of Termination Deadlines
| Credit Provision | Termination Date |
| Section 25C (Energy Efficient Home Improvement Credit) | Property placed in service after December 31, 2025 ineligible |
| Section 25D (Residential Clean Energy Credit) | Expenditures made after December 31, 2025 ineligible |
| Section 30C (Alternative Fuel Vehicle Refueling Property) | Property placed in service after June 30, 2026 ineligible |
| Section 45L (New Energy Efficient Home Credit) | Home acquired after June 30, 2026 ineligible |
𧞠Practical Compliance Checklist
If you intend to claim either credit, consider the following checklist before taking any action:
- Confirm eligibility of the specific property under Section 25C or Section 25D;
- Verify QMID availability for Section 25C propertyâobtain the QMID from the manufacturer before purchase;
- Complete installation and âplaced in serviceâ by December 31, 2025 at the latest;
- Retain all receipts, manufacturer certifications, and QMID records until after the home is sold;
- Claim the credit on Form 5695Â and Schedule 3 when filing your 2025 tax return; and
- Consult with a tax professional regarding basis reduction requirements and interaction with any state or utility rebates you may have received.
đĽ The Bottom Line
The Inflation Reduction Act of 2022 substantially expanded the Section 25C and Section 25D tax credits for residential energy improvements. However, the One Big Beautiful Bill Act of 2025 has dramatically shortened the availability of both credits. Homeowners have until December 31, 2025, to place qualifying property in service (Section 25C) or make qualifying expenditures (Section 25D) in order to claim the credits.
Given the tight deadlines, the strict placedâinâservice requirement, and the new QMID compliance rules, immediate action is strongly advised for anyone considering energyâefficient upgrades to their home.
đ Final Disclosure
Tax laws, regulations, and administrative guidance are subject to frequent change, and nothing in this post should be relied upon as a substitute for personalized professional tax advice. The information provided herein reflects the law as of the date of this publication, but the statutes, regulations, rulings, and judicial decisions discussed may be amended, repealed, superseded, or otherwise modified without notice. Any such changes could affect the continued availability, amount, or eligibility requirements of the tax credits discussed above, and could potentially have retroactive effect.
For specific questions regarding your individual circumstances, or to determine whether you qualify for any of the credits described above, please contact Alan Goldstein.
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