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Policy Retrospective

OBBBA One Year Later: How the 2025 Solar Tax Credit Changes Actually Played Out

· 9 min read

On July 4, 2025, President Donald Trump signed the One Big Beautiful Bill Act (OBBBA) into law on the White House South Lawn. Among its hundreds of provisions, the law rolled back several clean-energy tax credits created by the Biden-era Inflation Reduction Act — including the 30% residential solar credit that millions of homeowners had relied on. Now, one year later, the picture is clearer than the panic of summer 2025 suggested. Solar did not die. But it got more expensive for buyers, tilted decisively toward leases and batteries, and left a lot of homeowners scrambling to understand what — if anything — they can still claim.

What OBBBA Actually Changed

OBBBA (Public Law 119-21) ended or phased out a web of clean-energy incentives. For residential solar, the single most important change was to Section 25D, the Residential Clean Energy Credit. According to the IRS, this credit equals 30% of the cost of qualified property — solar panels, solar water heaters, wind turbines, geothermal heat pumps, fuel cells, and battery storage of at least 3 kWh — installed from 2022 through December 31, 2025. The IRS states plainly that the credit is “not available for any property placed in service after December 31, 2025.” In other words: if your owned rooftop system was not installed and operating by the end of 2025, the 30% federal credit is gone.

OBBBA did leave a narrower door open through Section 48E, the technology-neutral investment tax credit used for leases, power-purchase agreements (PPAs), commercial properties, and rental homes. Under a safe harbor, wind and solar projects that began construction within roughly one year of the law's signing — and that come online on the timeline the statute sets — can still claim a credit. (For the exact construction-start requirements and the action checklist, see our OBBBA Deadlines Guide and the live OBBBA Deadline Tracker.) Home electrification and efficiency credits were likewise terminated by the end of 2025.

The Late-2025 Rush to Beat the Deadline

Because the 25D cutoff was tied to placed in service — not merely ordered — the second half of 2025 saw homeowners and installers race to physically complete and energize systems before the clock ran out. An order or a signed contract was not enough; the equipment had to be installed and operating. That distinction produced a predictable squeeze: a wave of installations pushed into the fourth quarter, strained installer capacity, and left any project delayed by permitting, supply chain, or weather exposed to losing the credit entirely. It was the kind of deadline-driven frenzy that rewards the prepared and punishes anyone still comparison-shopping in November.

The Real Cost of Losing the 25D Credit

The dollar stakes are large. At 30%, the credit was the single biggest federal incentive for residential solar. On a hypothetical $25,000 system, that is a $7,500 reduction in tax liability — money that directly shortened the payback period by several years in most states. With the credit gone for new owned systems, that same $7,500 now comes out of the buyer's pocket (or gets financed into the loan), which meaningfully lengthens the break-even point.

How much longer depends almost entirely on your local electricity rate, which is why the math hasn't collapsed everywhere. In high-rate states, every kilowatt-hour your panels produce offsets a more expensive utility kilowatt-hour, so the savings that replace the lost credit are larger. With U.S. residential rates up sharply since 2024, rising bills are quietly doing some of the work the tax credit used to. The fastest way to see exactly where you stand is to run your own numbers with our Solar ROI Calculator, which uses your actual rate, usage, and local solar production data.

Model your payback with — and without — the credit

Our free ROI Calculator factors in your current electricity rate, usage, and local sun hours (via NREL PVWatts) to estimate your payback period and 25-year savings in the post-credit era.

Calculate My Solar ROI →

The Section 48E Safe Harbor: Who It Helps

The 48E safe harbor is the reason solar didn't simply stop on January 1, 2026. By allowing projects that began construction within the statutory window to preserve credit eligibility, it kept a path open for the part of the market that doesn't sell systems outright: third-party-owned leases and PPAs. That matters, because it shifted the economics. When a homeowner can no longer claim a 30% credit on a purchased system, a leased system — where the installer or developer claims the 48E credit and passes some of the value through via a lower monthly payment — becomes comparatively more attractive. The financing structure, not just the hardware, now drives the decision.

State Programs Step In Where Washington Stepped Back

With the federal floor removed, state and local incentives grew more important — and some states moved to fill the gap. New York is the clearest 2026 example: in late May 2026, the New York State Legislature and Governor finalized an FY2027 budget with significant new commitments to rooftop and community solar, according to the Solar Energy Industries Association (SEIA). Other states continue to layer rebates, property-tax exemptions, and performance incentives on top of whatever federal benefit remains. The result is that the value of going solar now varies even more by ZIP code than it did before OBBBA. To see the incentives that apply where you live, use our Incentive Finder, and check your state's payback profile — for example, California's solar payback breakdown.

What the Market Did: The SEIA / Wood Mackenzie Data

The hard numbers for 2026 are now in. In the U.S. Solar Market Insight report released June 10, 2026 by SEIA and Wood Mackenzie, the United States added 7.8 gigawatts (GW) of new solar capacity in the first quarter of 2026 and surpassed six million cumulative installations. Solar and storage together represented 91% of all new capacity added to the grid, and utility-scale solar contracts rose 15% year-over-year as tech companies locked up power for data centers.

But the residential story is different. Wood Mackenzie forecasts the residential solar market to decline by 21% in 2026, with growth resuming between 2027 and 2031. Michelle Davis, head of solar at Wood Mackenzie, put it bluntly: “We are forecasting that US solar additions will be flat over the next five years despite the need for more power supply in the US… current permitting bottlenecks continue to serve as near-term headwinds.” SEIA's interim president and CEO, Darren Van't Hof, warned that “Impeding the only sector that is actively building new power is a reckless gamble that will only drive electricity bills higher.”

One trend accelerated sharply: battery storage. In Q1 2026 a record 45% of residential solar installations were paired with a battery. With net metering under pressure in many states and the federal credit gone, homeowners are increasingly sizing systems to store their own production rather than sell it back — a structural shift in how residential solar is designed and sold.

What Homeowners Need to Know Now (2026)

If you're considering solar today, the rules have changed but the fundamentals haven't. First, assume no federal credit on a system you buy and own — budget as if the 30% is gone, because for new 25D systems it is. Second, get quotes on both a purchase and a lease/PPA; the 48E safe harbor can make a third-party-owned deal surprisingly competitive. Third, treat state incentives, net-metering rules, and your local electricity rate as the three variables that make or break the deal — they matter more than panel brand. Finally, if you installed and energized a system in 2025 or earlier, you almost certainly still qualify for the 30% credit on that system; file Form 5695 with your return.

Find every incentive you can still claim

State rebates, property-tax exemptions, and utility programs now carry more weight than ever. Enter your ZIP code to see what's available where you live.

Find My Incentives →

Frequently Asked Questions

Is the federal solar tax credit still available in 2026?

For an owned residential system placed in service after December 31, 2025, no — the 30% Section 25D credit is gone. Leases, PPAs, and commercial projects may still qualify under Section 48E if they meet the safe-harbor construction-start rules.

Does OBBBA affect systems that are already installed?

No. Any qualifying system placed in service on or before December 31, 2025 remains eligible for the 30% credit. OBBBA's phase-out only applies to systems placed in service after that date.

What is grandfathered?

Residential systems energized by the end of 2025 are grandfathered into the 30% credit. For leased or commercial projects, the 48E safe harbor preserved credit eligibility for projects that began construction within roughly one year of OBBBA's signing.

Is solar still worth it without the federal credit?

Often yes, especially in high-rate states. Higher electricity prices, state and local incentives, cheaper equipment, and a lease/PPA structure that can still tap the 48E credit all help close the gap the lost 25D credit opened.

The Bottom Line

One year on, OBBBA did exactly what it was designed to do for residential solar: it ended the most generous federal incentive and pushed the market toward third-party ownership, storage, and state-level support. Solar isn't dead — 91% of new grid capacity in Q1 2026 proves that — but the math for a homeowner buying panels in 2026 is harder than it was in 2024. The winners now are the ones who run the numbers for their own roof, weigh a lease against a purchase, and stack every state incentive they can find. The credit is gone. The savings, for many, are not.

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