Residential Clean Energy Credit for Solar Panels Explained (2025)

TL;DR: The Residential Clean Energy Credit lets homeowners claim 30% of the cost of a solar panel system on their federal taxes, with no dollar cap. Under the 2025 tax law (the One Big Beautiful Bill Act), this credit ends for any system not placed in service by December 31, 2025. You claim it using IRS Form 5695 for the tax year the system starts running, not the year you signed the contract.

_Last reviewed: August 2026 · 6 min read_

If you've been putting off going solar because the paperwork looks intimidating, the bigger problem now is timing. The federal credit that's covered 30% of solar costs for over a decade is being phased out early, and the deadline matters more than the percentage. Here's what the credit actually pays for, who qualifies, and what happens if your installer can't finish before the cutoff.

Okoniq Property Hub keeps a record of your solar installation date, invoice amounts, and permits in one place, so tax season doesn't turn into a scavenger hunt for the paperwork Form 5695 requires.

What is the Residential Clean Energy Credit?

The Residential Clean Energy Credit is a federal tax credit under Internal Revenue Code Section 25D that reimburses 30% of what you spend on qualifying home energy equipment, including solar panels, solar water heaters, battery storage of at least 3 kWh, geothermal heat pumps, and small wind turbines. It's a credit, not a deduction, meaning it subtracts directly from the tax you owe, dollar for dollar.

There's no lifetime dollar cap on the solar portion. If your system costs $24,000 installed, the credit is worth $7,200. It's nonrefundable, so it can't push your tax bill below zero, but any unused amount carries forward to future tax years. This is different from a deduction, which only reduces taxable income and depends on your bracket.

The credit has existed in some form since 2005, but the version most homeowners know traces back to the Inflation Reduction Act of 2022, which locked the rate at 30% through 2032 before a planned step-down. That original schedule no longer applies.

When does the solar tax credit end?

The credit ends after December 31, 2025, for residential systems, cut short by the One Big Beautiful Bill Act signed in July 2025. The original law would have kept the 30% rate through 2032, then dropped to 26% in 2033 and 22% in 2034 before expiring in 2035. That timeline is gone for homeowners.

What matters for eligibility isn't when you sign a contract or make a deposit. It's when the system is "placed in service," meaning installed and operational, passing inspection and capable of generating power. A signed contract in November 2025 with installation slipping into February 2026 means no credit. Given permitting delays and utility interconnection backlogs that can run 4 to 8 weeks in many jurisdictions, anyone planning to claim this credit needs to have contracts finalized well before Thanksgiving 2025 to have a realistic shot at year-end completion.

If your roof needs work first, get that assessed early. A roof that's aging faster than it should or has ventilation problems will delay a solar installer, since most won't mount panels on a roof with less than 10-15 years of remaining life. Check attic ventilation issues before you sign a solar contract, not after.

What costs qualify for the credit?

Qualifying costs include the solar panels themselves, inverters, mounting hardware, wiring, labor for installation, and permitting or inspection fees directly tied to the system. Sales tax on the equipment counts too.

What doesn't qualify: a new roof installed at the same time (unless it's integrated solar roofing like certain solar shingle products), general electrical panel upgrades unrelated to the solar system, and equipment used for a vacation home you rent out full-time as a business rather than use personally.

| Item | Qualifies for 30% Credit | Doesn't Qualify | |---|---|---| | Solar panels & inverters | Yes | — | | Installation labor | Yes | — | | Battery storage (3+ kWh) | Yes | — | | New asphalt shingle roof | — | No | | Standard electrical panel upgrade | — | No | | Home office / rental-only property | Partial, based on personal-use % | — |

If your existing electrical panel can't handle the added solar load, that's a separate cost. Homes still running 100 amp service often need an upgrade to 200 amps before an installer will connect a solar system, and that panel upgrade itself doesn't count toward the 30% credit even though it's a prerequisite.

How do you actually claim it on your taxes?

You claim the credit by filing IRS Form 5695 with your federal tax return for the year the system was placed in service, then carrying the result to Schedule 3 of Form 1040. Keep your final installation invoice, the interconnection approval from your utility, and proof of payment. The IRS doesn't require you to submit these with your return, but you need them if audited.

If you financed the system through a solar loan, you can still claim the full 30% credit based on the total system cost, not just what you've paid so far, as long as you're the one who owns the system and is legally obligated to repay the loan. Leased systems and power purchase agreements don't qualify for the homeowner, since the leasing company owns the equipment and typically claims a separate commercial credit instead.

For landlords, the credit generally applies only to a home you live in for part of the year. If a property is 100% rental with no personal use, the residential credit doesn't apply. Talk to a tax preparer about whether a business energy credit under a different code section fits your situation instead. While you're documenting the property, this is also a good moment to review electric bill costs tied to older appliances that might be worth replacing alongside a solar upgrade.

What if my installation gets pushed past the deadline?

If your system isn't placed in service by December 31, 2025, you lose the federal credit entirely, since there's currently no extension or grace period written into the law. Some states offer their own solar rebates or property tax exemptions that continue independently of the federal credit, so check with your state energy office even if the federal window closes on you. A handful of utilities also run their own solar incentive programs that aren't tied to the federal deadline.

Given the compressed timeline, ask any installer for a written, dated estimate of when the system will be operational, not just when installation crews will show up. Interconnection approval from your utility is often the slowest step and is out of the installer's direct control.

FAQ

Is the solar tax credit going away completely after 2025?

Yes, for residential (Section 25D) systems the credit ends for anything placed in service after December 31, 2025, unless Congress passes new legislation. Commercial and utility-scale solar credits under different code sections have separate timelines.

Can I claim the credit if I pay cash versus financing?

Yes, the payment method doesn't change eligibility. Whether you pay cash, use a home equity loan, or take a solar-specific loan, you claim 30% of the total system cost as long as you own the equipment.

Does the credit cover a roof replacement done at the same time as solar?

No, a standard roof replacement isn't covered even if it happens during the same project, unless the roofing material itself is solar-generating, such as certain solar shingle systems where the roofing and the energy generation are the same product.

What happens to unused credit if it's bigger than my tax bill?

It carries forward to next year's tax return. If your $7,200 credit exceeds what you owe in 2025, the remainder rolls into your 2026 filing and reduces that year's tax bill instead.

Do I need a new electrical panel before installing solar?

Many homes do, especially older houses still on smaller electrical services. Check your panel's amperage and available breaker space before signing a solar contract, since an upgrade can add several weeks to your installation timeline.

This is educational information, not tax advice. Talk to a CPA or tax preparer about how the Residential Clean Energy Credit applies to your specific filing situation, especially regarding the 2025 deadline and rental property rules.