Solar Tax Credit 2026: Is the Federal Credit Gone? What to Know

For most homeowners installing residential solar in 2026, the short answer is yes. The federal Residential Clean Energy Credit (IRS Section 25D), which let homeowners claim 30% of a qualifying system's cost against their federal income taxes, was terminated by the 2025 federal tax law often called the "One Big Beautiful Bill Act." The termination applies to systems placed in service — expenditures made — after December 31, 2025.

So if you're collecting quotes this year, don't count on a 30% federal credit taking thousands off your price. Build your budget as if it isn't there. And because tax law changes and the details depend on your situation, verify the current rules yourself with a licensed tax professional and official sources like irs.gov and energy.gov before you rely on any number.

When it existed, the credit was simple in concept. A homeowner who bought and installed a qualifying solar system could claim 30% of the eligible cost as a credit against their federal income taxes. On a system that cost, say, roughly $25,000 before incentives, that worked out to about $7,500 — not a rebate check in the mail, but a reduction in what you owed the IRS.

It was a nonrefundable credit, which mattered: it lowered your tax bill but didn't pay you cash beyond what you owed, and historically any unused amount could carry to the next year. If your system was placed in service on or before December 31, 2025, this is the framework that applied to you. How much you can actually claim depends on your own tax situation, so confirm the details with a tax professional and current IRS guidance before you file.

The cutoff is tied to when the system is placed in service, not when you signed a contract or received a quote. The practical result for 2026 buyers: most residential systems going in this year fall after the cutoff, so the 30% federal credit generally won't apply to them.

This is the single most important thing to get right in your own numbers, because a few thousand dollars of assumed credit can flip whether a system looks like a good deal or a stretch. If you're unsure how the timing rules apply to your specific install date, that's a question for a tax professional and official IRS guidance rather than a sales sheet.

The federal credit going away doesn't mean every incentive is gone. State tax credits, local rebates, utility programs, and net-metering rules still vary widely from place to place, and some may meaningfully lower your cost or improve your payback. These aren't changed by the federal update in the same way, so they're worth checking on their own.

The best single place to see what's available where you live is the DSIRE database at dsireusa.org — a free, regularly updated directory of state, local, and utility energy incentives. Look up your state and your utility before you assume your only savings come from the electricity the panels offset. Treat anything you find as a starting point to verify, not a guarantee.

Here's where it gets practical. A great deal of solar sales math was built around the 30% federal credit, and not every proposal has been updated. You may see a quote with a large "federal tax credit" line, a "net cost after incentives" figure, or a payback estimate that still bakes in 30% you may not actually be able to claim in 2026.

If your savings or payback numbers lean on that credit, they could be off by thousands of dollars. Ask the installer directly which incentives their numbers assume, whether the federal credit is included, and what the price and payback look like without it. A quote that only pencils out with a credit you can't get isn't necessarily a bad system — but it's a number worth correcting before you sign, not a reason to feel rushed.

You don't need to be a tax expert to catch a stale assumption — you just need to know where installers tend to put it. Read the proposal for any line labeled tax credit, ITC, 25D, incentive, or after incentives, and separate the plain cash price from the "after-credit" figure. Judge the deal on the cash price and on incentives you've actually verified for your address.

An independent check helps here: running your quote through a tool that benchmarks the cash price per watt and shows payback without assuming a credit you may not qualify for tells you quickly whether the deal stands on its own. Whatever you do, confirm the current federal, state, and local rules with a licensed tax professional and official sources before you rely on any savings number.