The 30% Federal Solar Tax Credit in 2026, Explained
Thirty percent of your system's cost comes straight off your federal tax bill. Who qualifies, what counts, and how to claim it — without the sales-deck spin.
What the credit is
The federal residential clean energy credit — the one installers call "the 30% ITC" — lets a homeowner subtract 30% of a solar system's total installed cost from their federal income tax. Not 30% of the tax bill: 30% of the system cost, applied against the tax you owe. There is no dollar cap, and it applies to the full installed price: panels, inverter, racking, labor, permitting and eligible home batteries of 3 kWh or more.
Who qualifies
- You own the system. Purchased with cash or a loan counts. Leases and PPAs do not — the owner is the company, and the company claims the credit.
- It is your residence in the United States — your main home, and in many cases a second home you use personally.
- The equipment is new and installed during the tax year you claim. Used panels do not qualify.
- You have federal tax liability. The credit is nonrefundable, so it offsets tax you actually owe; unused credit generally carries forward to later years.
A worked example
That net figure is what every payback number on this site uses: $12,180 ÷ $1,683 a year in savings ≈ 7.2 years to break even.
Local money stacks on top. In Austin, for example, a $2,500 utility rebate brings the same class of system down further — which is why the Austin page shows a shorter payback than the national example. Check your city page for the rebates that apply where you live.
How to claim it
You claim the credit with IRS Form 5695 (Residential Energy Credits), filed with the federal return for the year your system was installed and turned on. Keep the installer's itemized invoice and the manufacturer certification statement with your records; your installer should provide both as a matter of course. If a salesperson quotes you a "net price" that assumes the credit, ask for the gross price in writing too — the credit is yours to claim, not theirs to spend.
Common mistakes
- Counting the credit on a lease. No ownership, no credit.
- Forgetting the roof. Re-roofing is generally not part of the creditable system cost, even when done for the install. Budget it separately.
- Assuming a refund. If your tax liability is smaller than the credit, the excess carries forward — plan cash flow accordingly.
- Skipping the paperwork. No Form 5695, no credit, no matter what the contract promised.
With the credit handled, the rest of the decision is payback math: see how solar payback works, or run your own bill through the calculator.
Tax credit FAQ
Can I claim the credit if I lease my system or sign a PPA?
No. The residential clean energy credit goes to whoever owns the equipment. With a lease or power purchase agreement, the installer or financing company owns the system and claims the credit — another reason to compare ownership quotes against lease quotes carefully.
What if the credit is bigger than my tax bill?
The credit is nonrefundable: it can reduce your federal tax to zero but no further in that year. Unused amounts generally carry forward to future tax years. If your tax liability is small, spreading the benefit out is normal — a tax professional can confirm your situation.
Do state and local incentives stack with the federal credit?
Yes. Utility rebates (like Austin Energy's $2,500) and state programs apply on their own terms, separately from the federal credit. Some rebates reduce the cost basis used for the federal calculation if they are treated as a purchase-price adjustment — check how your program is structured.
When do I claim it?
On the federal return for the tax year the system is installed and operational — a system installed in 2026 is claimed on the return you file in early 2027.