Tax Credits for Solar Panels in 2026: What Changed and What's Left

If you're researching solar panels in 2026, you've probably seen dozens of articles, calculators, and YouTube videos quoting the "30% federal tax credit." Here's the problem: most of that content is outdated. The One Big Beautiful Bill Act (OBBBA), signed into law in July 2025, fundamentally rewrote the solar incentive landscape — and the change took effect January 1, 2026.

This guide explains, in plain English, exactly what changed, what's still available, which deadlines matter, and how to actually claim what's left. We'll also clear up the most common misconceptions (including the big one: that the 30% credit is still alive for homeowners).

What Changed: The One Big Beautiful Bill Act (OBBBA)

The OBBBA was signed in July 2025 and made sweeping changes to federal energy tax policy. For solar specifically, three things happened:

1. Section 25D (Residential Solar Credit) — Terminated Dec 31, 2025

Under the Inflation Reduction Act, Section 25D provided a 30% federal tax credit for residential solar and battery storage, scheduled to phase down starting in 2033 and expire at the end of 2034. The OBBBA accelerated that timeline dramatically: the credit dropped from 30% to 0% for any property placed in service after December 31, 2025.

What "placed in service" means: the system must be installed, inspected, and operational — not just under contract. If your system was energized on or before December 31, 2025, you can still claim the 30% credit on your 2025 taxes. If it went live January 1, 2026 or later, you cannot claim Section 25D at all.

2. Section 25C (Residential Efficiency Credit) — Also Terminated Dec 31, 2025

The companion credit for efficiency upgrades — heat pumps, insulation, energy-efficient doors/windows, heat pump water heaters, electrical panel upgrades — also expired on the same date. This was worth up to $1,200/year (or $2,000 for heat pumps) and was stackable with the solar credit. It's now $0 for any property placed in service after Dec 31, 2025.

This matters for solar buyers because many of the best solar-and-efficiency combinations (solar + heat pump + battery) lost the efficiency-side credit at the same time as the solar credit. See our heat pump vs furnace guide for how this changes HVAC economics.

3. Section 48E (Commercial Clean Electricity Credit) — Phased Out by July 4, 2026

The commercial-side credit didn't disappear overnight, but it's on a fast sunset. Section 48E (the technology-neutral successor to Section 48) still covers solar projects for businesses, nonprofits, and — crucially — third-party-owned residential systems (leases and PPAs). But under a July 7, 2025 executive order directing Treasury to "strictly enforce termination," the begin-construction safe harbor deadline is July 4, 2026.

Projects that begin physical construction (or meet the 5% safe harbor spending threshold) before that date can still claim the full 30% ITC. Projects starting after that date cannot.

The 2026 Solar Credit Cheat Sheet

Here's a side-by-side comparison of every federal solar-related credit and its status as of July 2026:

The Lease/PPA Loophole: How It Still Works

This is the single most important section for homeowners in 2026. While the residential credit is gone, third-party-owned solar systems still qualify for the 30% commercial Investment Tax Credit under Section 48E. Here's how it works in practice:

How a solar lease/PPA captures the 30%

1. You sign a lease or PPA with a solar company. Under this arrangement, the company (not you) owns the system on your roof.
2. The company claims the 30% ITC under Section 48E because they are the legal owner of a commercial clean energy asset.
3. The company passes the savings to you through a lower monthly payment than would otherwise be possible. You don't see the credit directly, but you benefit from it.
4. Your monthly payment is typically 10–25% less than your old electric bill, with little to no money down.

The trade-off: leases and PPAs don't build equity in the system the way a purchase does. You also don't qualify for SREC income in most states (the leasing company does). But for homeowners who can't use a tax credit (low tax liability, retired, etc.) or who simply want the 30% benefit in 2026, this is the path.

What "begin construction" actually means

The IRS recognizes two ways to satisfy the begin-construction requirement:

• Physical work test: Significant physical construction activity has begun on the solar array itself (not just site preparation like grading or fencing).
• 5% safe harbor test: You've paid or incurred at least 5% of the total system cost. This is the easier path — most companies hit it as soon as equipment is ordered and a deposit is paid.

Once you've satisfied either test before the deadline, you generally have 4 years (until end of 2030 for calendar-year taxpayers) to place the system in service and claim the credit. So a project that begins construction July 1, 2026 can be fully installed and energized in 2027 and still qualify.

State Solar Incentives That Still Matter in 2026

With the federal residential credit gone, state programs are now the most important variable in whether solar makes sense. Here are the strongest state programs as of mid-2026:

The single best resource for verifying current state, local, and utility incentives is the DOE-funded DSIREUSA.org database. Search your state, then call your utility — many offer rebates and performance payments that don't show up in tax-form searches.

How to Actually Claim What's Left

If you're buying solar with cash or a loan (post-Jan 1, 2026)

Federal: No credit to claim. Section 25D is gone. You don't file anything federal related to the solar purchase.

State: Check DSIRE for your state's credit (if any). States with active credits include New York (Form IT-255), Arizona (Form 310), South Carolina (Form SC SCH TC58), and Massachusetts (no state credit, but SMART payments). File the appropriate state form with your state tax return.

If you signed a lease or PPA

Federal: The leasing company claims the 30% ITC under Section 48E — you don't file anything. Your benefit is baked into the lower monthly payment.

State: Some state credits (NY, AZ, SC) are restricted to system owners — meaning if you lease, the leasing company may claim the state credit too. Read your lease contract carefully; most pass through a portion of state incentives, but terms vary.

If your system was placed in service in 2025 or earlier

You can still claim Section 25D. If you installed solar in 2025 and haven't yet claimed the credit, you can still file IRS Form 5695 with your 2025 tax return (or amend a prior return within 3 years of the original filing date). The 30% credit is yours as long as the system was energized on or before December 31, 2025.

If you're a business or nonprofit

Federal: Section 48E (30% ITC) is still available if construction begins before July 4, 2026. File IRS Form 3468. Nonprofits can use direct pay (elective pay) to receive the credit as a cash refund even without tax liability. Businesses can also claim MACRS depreciation (Form 4562), which combined with the ITC can recover ~50% of system cost through tax benefits alone.

Is Solar Still Worth It Without the Federal Credit?

This is the question every homeowner is asking in 2026. The honest answer: it depends almost entirely on your local electricity rate and net metering policy.

Where solar still makes sense in 2026

Solar pencils out without the federal credit when:

• Your electricity rate is $0.25+/kWh (Northeast, California, Hawaii, Alaska). At these rates, payback is 8–12 years without the credit.
• You have 1:1 net metering (full retail credit for exports). This roughly doubles the value of your solar compared to NEM 3.0-style policies.
• You have strong state incentives (NY, MA, NJ, RI). State credits can replace 10–20% of the lost federal benefit.
• You use a lease/PPA that captures the 30% commercial credit. This effectively preserves the old economics.

Where solar is harder to justify in 2026

• Low-rate states ($0.12–0.15/kWh) like North Dakota, Idaho, Washington, Utah. Without the federal credit, payback stretches to 15+ years.
• States with reduced net metering (California NEM 3.0, anything with export rates below retail).
• Small systems (<5 kW) where fixed costs eat a larger share of savings.

For a full breakdown of payback periods by state and rate, see our solar ROI calculator guide — it walks through the post-OBBBA math step by step.

Common Mistakes and Misconceptions in 2026

"My solar salesman said I'll get the 30% tax credit."

Either they're uninformed, or they're describing a lease/PPA (where the company claims the credit, not you). If you're buying with cash or a loan and your salesman is quoting the 30% federal credit on your purchase, they are wrong or misleading you. Get any credit claim in writing, and verify against IRS Form 5695 instructions for the current tax year.

"I signed my contract in 2025, so I'm grandfathered."

Not necessarily. Section 25D is based on placed-in-service date, not contract date. If your system wasn't energized by December 31, 2025, you can't claim the credit — even if you signed the contract years earlier. The only grandfathering that matters for the commercial side (leases/PPAs) is the July 4, 2026 begin-construction deadline.

"I'll just wait — the credit might come back."

Unlikely in the near term. The OBBBA passed with strong majorities specifically targeting clean energy credits for elimination, and the July 2025 executive order directed "strict enforcement" of the sunset. Reinstatement would require new legislation. Meanwhile, electricity rates keep rising (national average 18.83¢/kWh as of April 2026, up 7.4% YoY), so waiting has a real cost. See our guide on how to reduce your electricity bill for non-solar ways to save while you decide.

"My state's credit replaces the federal one."

No state credit comes close to replacing 30% of a $30,000 system ($9,000). The strongest state credit is New York's 25% up to $5,000 — meaningful, but a fraction of what the federal credit offered. State credits help at the margin; they don't restore the old economics.

"Battery storage still qualifies for something, right?"

For cash/loan residential purchases: no. The Section 25D battery storage credit (which covered batteries ≥3 kWh) died with the rest of 25D. For leases/PPAs, batteries are included in the system that qualifies for the commercial ITC. For businesses, batteries qualify under 48E if they begin construction before July 4, 2026. In California specifically, the SGIP rebate still applies to residential batteries regardless of federal status.

Frequently Asked Questions

Is the federal solar tax credit really gone in 2026?

Yes — for residential cash and loan purchases. Section 25D (the 30% residential credit) expired December 31, 2025 under the One Big Beautiful Bill Act. Any solar system placed in service on or after January 1, 2026 receives $0 in federal residential tax credit. The only federal path to the 30% benefit in 2026 is through a lease or PPA, where the financing company claims the commercial Section 48E credit (with a begin-construction deadline of July 4, 2026).

Can I still claim the 30% credit if I installed solar in 2025?

Yes. If your system was placed in service (energized and operational) on or before December 31, 2025, you qualify for the full 30% Section 25D credit. File IRS Form 5695 with your 2025 federal tax return. If you already filed your 2025 taxes without claiming it, you can amend within 3 years of the original filing date.

What's the July 4, 2026 deadline and does it affect homeowners?

July 4, 2026 is the begin-construction safe harbor deadline for Section 48E (the commercial Investment Tax Credit). It affects homeowners only if you're using a lease or PPA — the leasing company must begin construction (or meet the 5% spending threshold) before that date to claim the 30% credit. If you're buying solar with cash or a loan, this deadline doesn't apply to you because Section 25D is already gone.

Should I buy solar with a loan or lease in 2026?

If you want the 30% federal benefit, a lease or PPA is the only way to get it in 2026 — the financing company claims the commercial credit and passes savings to you via lower monthly payments. If you want to own your system (build equity, claim SRECs, avoid 20+ years of payments), a cash purchase or loan makes sense in high-rate states ($0.25+/kWh) where payback is 8–12 years even without the federal credit. In low-rate states, the lease/PPA route is usually the better post-OBBBA choice.

What states have the best solar incentives in 2026?

New York (25% state credit up to $5,000), Massachusetts (SMART 3.0 performance payments + 1:1 net metering), New Jersey (SREC-II at $85/MWh for 15 years), Rhode Island ($0.65/W rebate + performance payments), and Arizona (25% state credit up to $1,000) have the strongest state-level programs. California's SGIP battery rebate is also valuable but NEM 3.0 made solar-only much less attractive there.

Can a nonprofit get the solar tax credit in 2026?

Yes — through "direct pay" (also called elective pay). Under the Inflation Reduction Act, nonprofits, governments, tribes, and other tax-exempt entities can claim the Section 48E commercial credit as a cash refund, even with no tax liability. This is still available in 2026 if construction begins before July 4, 2026. File IRS Form 3468 and elect direct pay on Form 990-T.

Did the OBBBA affect solar tariffs or panel prices?

The OBBBA did not directly change solar tariffs, but the broader trade policy environment in 2026 includes continued Section 201 and Section 301 tariffs on imported solar cells and modules. Panel prices have stabilized around $0.30–0.40/W for residential installations (down from 2022 peaks), but the lost 30% credit means the net cost to homeowners is higher than at any point since 2022 despite lower hardware costs.

What's the difference between Section 48 and Section 48E?

Section 48 was the legacy commercial Investment Tax Credit (technology-specific). Section 48E is its technology-neutral successor introduced by the Inflation Reduction Act — it covers any zero-emission electricity generation, including solar. Both apply to commercial solar projects, but 48E is the one active for new projects in 2026. Projects that began construction before 2025 can still use the old Section 48 rules.

Will the solar tax credit come back?

Unlikely in the near term. Reinstating Section 25D would require new federal legislation, and the political environment that produced the OBBBA (and the July 2025 executive order directing "strict enforcement" of the credit terminations) makes near-term reversal improbable. State incentives and the commercial lease/PPA path are the realistic options for the rest of 2026 and likely beyond.