Solar Tax Credit Guide 2026 — What Changed & What Didn't After OBBBA

The solar tax credit landscape changed dramatically with the passage of the One Big Beautiful Bill Act (OBBBA). If you're confused about whether the 30% federal solar tax credit is still available, you're not alone — major solar websites are publishing contradictory information. Some claim the credit "ended in 2025." Others say it was "extended through 2032." The truth is more nuanced, and getting it wrong could cost you thousands of dollars.

This guide explains exactly what changed, what didn't, and what it means for homeowners considering solar in 2026 and beyond.

The Short Answer

The Section 25D Residential Clean Energy Credit — the 30% tax credit most homeowners used — expired on December 31, 2025, for owned residential systems. If you buy and own a solar system for your primary residence installed in 2026 or later, there is no federal tax credit available to you personally.

However, the Section 48E Clean Electricity Investment Credit remains active at 30% for qualifying projects — including leased systems, PPAs, commercial properties, rental properties, and tax-exempt organizations — provided construction begins before July 4, 2026.

Many websites conflate these two credits or haven't updated their content since the OBBBA passed. Let's break down exactly what each one covers.

Quick Eligibility Check

Section 25D vs. Section 48E — What's the Difference?

The critical distinction: Section 25D was claimed by homeowners on their personal taxes. Section 48E is typically claimed by the system owner (the installer or developer) — not by you, unless you own a business property.

What Changed With the OBBBA

Before the OBBBA, the Inflation Reduction Act (IRA) of 2022 had established a clear schedule for the residential solar tax credit: 30% through 2032, stepping down to 26% in 2033, 22% in 2034, and 0% for residential after 2034. The OBBBA accelerated the expiration of Section 25D to December 31, 2025 — effectively eliminating the residential credit seven years early.

The OBBBA also modified Section 48E, adding a construction-begin deadline of July 4, 2026, and introducing Foreign Entity of Concern (FEOC) restrictions that can disqualify projects using panels from certain foreign manufacturers.

Here's what specifically changed:

• Section 25D expired for owned residential solar on December 31, 2025
• Section 48E remains at 30% but requires construction to begin by July 4, 2026
• FEOC restrictions were added — panels from prohibited foreign entities may disqualify the credit
• Domestic content bonus (10%) and energy community bonus (10%) remain available under Section 48E
• Direct pay election remains available for tax-exempt organizations

Who Still Qualifies for a Federal Solar Tax Credit

1. Lease or PPA Arrangements

If you enter into a solar lease or Power Purchase Agreement, the installation company owns the system and claims the 30% credit under Section 48E. You benefit indirectly through lower monthly payments — typically 10-20% below your current utility bill. The installer passes through a portion of the credit value to make the deal attractive. Learn more about solar tax credits for rentals and lease arrangements.

2. Commercial Properties

Commercial solar installations qualify under Section 48E at the full 30% rate, plus bonus credits for domestic content and energy community status. Commercial projects also benefit from accelerated depreciation (MACRS + bonus depreciation), which can add another 20-30% in tax benefits. See our commercial vs. residential comparison.

3. Rental Properties

Solar installations on rental properties fall under Section 48E, not the expired Section 25D. This means landlords can still claim the 30% credit for systems installed on rental properties, provided construction begins before the July 4, 2026 deadline. Read our full guide to solar tax credits for rental properties.

4. Tax-Exempt Organizations

Nonprofits, schools, municipalities, and tribal governments can use the direct pay election under Section 48E to receive the credit value as a cash payment from the Treasury, even though they have no tax liability to offset.

Bonus Credits That Stack on Top of 30%

Domestic Content Bonus (+10%)

Projects that meet domestic content requirements can add 10% to their credit rate, for a total of 40%. To qualify, steel and iron must be 100% US-produced, and manufactured products must meet a minimum domestic content percentage (40% for projects beginning construction in 2026). See our full domestic content bonus guide.

Energy Community Bonus (+10%)

Projects located in qualifying energy communities — brownfield sites, areas with significant fossil fuel employment, or census tracts with retired coal facilities — receive an additional 10%. This stacks with the domestic content bonus, potentially reaching 50% total.

Low-Income Bonus (+10-20%)

Projects in low-income communities or on low-income residential property may qualify for an additional 10-20% bonus, though this has a national capacity cap and is allocated through a competitive application process.

The FEOC Restriction — A Hidden Trap

One of the most important OBBBA changes is the Foreign Entity of Concern (FEOC) rule. If your solar project uses panels from a prohibited foreign entity — primarily certain Chinese manufacturers — the Section 48E credit may be completely disallowed. This applies even if you meet all other requirements.

The Treasury Department maintains a list of FEOC-flagged manufacturers. Before signing any solar contract, ask your installer for FEOC compliance documentation for the specific panel model they plan to use. If they can't provide it, that's a red flag.

You can check your panel manufacturer using our Tax Credit Eligibility Checker or the OBBBA Deadline Tracker.

The Construction-Start Deadline

For Section 48E, the critical deadline is July 4, 2026 — construction must have begun by this date. There are two ways to satisfy this:

1. Physical Work Test: Actual physical work of a significant nature has begun on the project (on-site or off-site under a binding contract).
2. 5% Safe Harbor: At least 5% of the total project cost has been paid or incurred. For residential systems under 1.5 MW, this is typically the easier option — a deposit on equipment can satisfy it.

What does NOT count: Permitting, financing arrangements, site selection, feasibility studies, planning, designing, or signing contracts without payment. Many homeowners are surprised to learn that getting a permit doesn't count as beginning construction.

Check your personalized deadline with our OBBBA Tax Credit Deadline Tracker.

State Incentives Still Available

Even without the federal residential credit, many states offer their own solar incentives that can significantly reduce your net cost. States with strong programs include:

• New York: 25% state tax credit (up to $5,000) + NY-Sun rebates
• Massachusetts: 15% state credit (up to $1,000) + SMART program
• Maryland: Clean Energy Credit (up to $1,000) + SRECs
• Rhode Island: Renewable Energy Growth program
• Connecticut: Residential Solar Investment Program
• D.C.: Solar for All program + aggressive SREC market

Some states increased their incentives after the federal credit expired to maintain solar adoption. See our complete state solar tax credit guide or use the Incentive Finder for your area.

Is Solar Still Worth It Without the Federal Credit?

The short answer: it depends on where you live and how you finance it.

In states with high electricity rates (California, Massachusetts, New York, Connecticut, Hawaii) and good solar resource, solar can still provide solid returns — payback periods of 10-14 years are achievable, even without the federal credit. Rising utility rates (averaging 4-6% annually) make solar more valuable each year.

In states with cheap electricity and poor solar resource, the math is harder. The lease/PPA pathway can still make sense because the installer claims the 48E credit and passes savings to you.

Use our Solar ROI Calculator to see the exact payback and savings for your situation, with or without the federal credit.

How to Spot Misinformation About Solar Tax Credits

With the confusion following the OBBBA, misinformation is everywhere. Here's how to spot it:

• "The 30% credit is still available for homeowners." False — for owned residential systems on primary residences, it expired Dec 31, 2025.
• "The solar tax credit was extended through 2032." False — Section 48E now requires construction to begin before July 4, 2026, and Section 25D for residential purchases is gone. Many websites blur this distinction.
• "You'll save 30% on your solar installation." Misleading — you don't "save" 30%. A tax credit reduces your tax bill dollar-for-dollar. If you owe less in taxes than the credit amount, you may not benefit from the full 30%.
• Any quote that includes a 30% federal discount on an owned residential system in 2026 is using outdated or incorrect assumptions.

Read our guide on Detecting Expired ITC Claims in Solar Quotes to learn exactly how to spot this.

What to Do Next

1. Check your eligibility using our Tax Credit Eligibility Checker — it covers the 25D/48E split, lease vs. own, and FEOC compliance.
2. Run your numbers through the ROI Calculator to see payback and savings with current 2026 rules.
3. Find your state incentives with the Incentive Finder — state credits can still make solar attractive.
4. Compare quotes carefully using the Quote Comparison Tool — watch for expired ITC claims in quotes.
5. If pursuing a lease/PPA, check the OBBBA Deadline Tracker for the construction-start timeline.

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Frequently Asked Questions

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Sources: IRS Form 5695 Instructions (2025), IRS Form 3468 Instructions, IRS Notice 2025-42 (OBBBA implementation), Treasury FEOC Guidance (IR-2026-23), NREL ITC Documentation, DSIRE State Incentive Database, SEIA U.S. Solar Market Insight Q1 2026.