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The federal solar tax credit ended in 2026: what it means for you
The 30% federal Residential Clean Energy Credit (26 U.S.C. §25D) was ended by the One Big Beautiful Bill Act of 2025 for any residential system placed in service after December 31, 2025. If you buy solar for your own home with cash or a loan in 2026, your federal credit is now $0. This is not a phase-down that shrinks over time; for owned home systems the credit is simply gone. The one route that still captures roughly 30% is a third-party lease or power-purchase agreement, where a company owns the panels and claims a separate commercial credit. State incentives and net metering are unaffected. Because the biggest single discount on solar has disappeared for buyers, 2026 payback periods are meaningfully longer than they were in 2025.
What the §25D credit was
For years, the Residential Clean Energy Credit gave homeowners a federal income-tax credit worth 30% of the cost of a solar system they owned. On a $24,000 system that was $7,200 taken straight off the federal tax you owed, not a deduction and not a rebate check. It was the single biggest reason a good solar case paid back inside a decade, and most cost and payback estimates you will still see online quietly assume it. That assumption is now out of date for anything installed in 2026 or later.
What changed, and when
The One Big Beautiful Bill Act (OBBBA), enacted in 2025, terminated the §25D credit for systems placed in service after December 31, 2025. There is no gradual step-down and no reduced rate for homeowners: a qualifying system finished in 2025 could still claim the 30% credit, and a system placed in service in 2026 gets nothing under §25D. If your system was placed in service in 2025 or earlier, you claim it as before, on IRS Form 5695 for that tax year; confirm the details with a tax professional. For everyone shopping now, the credit is a closed door.
What a 2026 cash or loan buyer actually gets
Zero federal credit. If you pay cash or finance a system you own, the number that used to knock roughly a third off your net cost is no longer there. The table below shows the same $24,000 system before and after the change so the size of the difference is clear.
| Placed in service in 2025 | Placed in service in 2026 | |
|---|---|---|
| Gross system cost | $24,000 | $24,000 |
| Federal §25D credit | -$7,200 | $0 |
| Net federal cost | $16,800 | $24,000 |
That $7,200 swing lands directly on your payback period, pushing your break-even year later. It does not change whether the panels produce or what your utility pays you; it changes what you are out of pocket up front.
The one route that still captures about 30%: leases and PPAs
There is a workaround, with real trade-offs. In a third-party lease or power-purchase agreement (PPA), a company owns the panels on your roof and you either rent them or buy the power they produce. Because that company is a business, it can claim the commercial Clean Electricity Investment Credit (26 U.S.C. §48E), which §25D's repeal did not touch, and it can pass some of that value back to you as a lower rate or a low-money-down deal. In effect, a lease is the only way a 2026 household still benefits from a federal solar credit at all.
The catches matter, and an honest comparison has to weigh them:
- It is time-limited too. The commercial §48E credit itself runs only through roughly the end of 2027, so this door is closing, not permanent.
- You do not own the system. The panels belong to the leasing company, so your lifetime savings are smaller than owning outright, where every kilowatt-hour after payback is essentially free.
- It can complicate selling your home. A buyer has to assume the lease or PPA, or you have to buy it out, which can slow or complicate a sale.
A lease can still make sense, especially for a household with little tax appetite that could never have used the old credit fully anyway. But it is a genuinely closer call than the old buy-and-claim-30% math, and worth modeling both ways.
What did not change: state incentives and net metering
The repeal hit one specific thing: the federal §25D credit. It did not touch state and utility programs, and it did not touch net metering. Many states and utilities still offer their own credits, rebates, tax exemptions, or performance payments, and the searchable DSIRE database lists what is available where you live. Your net-metering rules, which decide how much your exported production is worth, are set by your state and utility and are unaffected. For many homes those local programs are now the main incentive on the table.
How this changed payback
The headline is simple: with the federal credit gone for buyers, 2026 payback periods are longer than they were in 2025. A system that broke even around year 8 with the 30% credit applied breaks even later without it, and cheap-power, low-sun homes that were already marginal are pushed further out. That makes the buy-versus-lease-versus-wait decision a real one rather than an automatic yes, and it makes an unbiased payback number for your own ZIP more useful than any national rule of thumb.
One honest caveat: we are describing a change in the law, not giving tax advice. Whether a lease, a cash purchase, or waiting is right for you depends on your rate, your roof, your tax situation, and how long you will stay. Confirm your specifics with a qualified tax professional before you count on any number.
See it applied to your numbers
The report models an owned 2026 system with no federal credit, applies any clear state incentive from DSIRE, and uses your state's NREL production and EIA rate to give you a net cost and a payback year for your ZIP. Our methodology shows every step, so you can check the math rather than take our word for it, and walk into any sales call already knowing what the numbers really look like now.
Skip the estimates. Get your actual payback year for your ZIP.