The 30% federal tax credit for homeowners who buy solar panels ended on December 31, 2025. The One Big Beautiful Bill Act, signed July 4, 2025, terminated the Residential Clean Energy Credit (Section 25D) for expenditures made after 2025. If your system was not finished by then, you cannot claim 25D on a 2026 purchase.
That changes the math for anyone shopping for solar today. This guide explains what ended, who can still claim the credit, which federal incentives remain for businesses and leased systems, and how to file Form 5695 if you installed in 2025 or earlier.
2026 Update: What Changed
- Homeowners who buy (cash or loan) in 2026: no federal residential credit. The 30% Section 25D credit does not apply to expenditures made after December 31, 2025.
- Systems completed in 2025: still eligible. Claim the credit on your 2025 return (Form 5695), and carry any unused amount forward to later years.
- Businesses and landlords: the Section 48E commercial credit continues for solar, but projects that did not begin construction by July 4, 2026 must be placed in service by the end of 2027.
- Leases and PPAs: the installer, not you, owns the system and may still claim the commercial credit under the same deadlines. Whether that shows up as a lower monthly rate is up to the provider, so compare offers.
- Not covered by this guide: state credits, rebates and net metering. Many remain in force; see the state guides below.
Rules change, and your situation may have special details. Confirm current rules on the IRS Form 5695 page or with a tax professional before you rely on any figure here.
Why It Still Pays to Price Your System
Losing a 30% credit raises the net cost of a home system by roughly 43% (a $20,000 system that netted $14,000 now nets $20,000). Equipment prices keep falling, though, and the biggest lever you control is the cost per watt. Use the panel price list to see current $/W, and the solar payback period calculator guide to rerun your break-even without the credit.
What Is the Federal Solar Tax Credit?
The federal solar tax credit, officially known as the Investment Tax Credit (ITC), was a dollar-for-dollar reduction in your federal income taxes equal to 30% of your solar energy system costs (for homeowners, under Section 25D). Unlike a tax deduction that reduces your taxable income, this tax credit directly reduces the amount you owe the IRS.
The Inflation Reduction Act of 2022 had set the 30% rate through 2032. The July 2025 law cut that schedule short: the residential credit now applies only to expenditures made through December 31, 2025.
The credit applies to the total cost of your solar energy system, including equipment, installation labor, permitting fees, and even energy storage systems like batteries when installed alongside solar panels. This comprehensive coverage ensures you can claim the maximum possible benefit from your solar investment.
How Much Could You Have Saved? (2025 and Earlier Systems)
Your potential savings depend on your system size and total installation costs. Here's how the numbers work across different price ranges:
Small System (4kW):
- Average cost: $12,000-$16,000
- Tax credit savings: $3,600-$4,800
Medium System (6kW):
- Average cost: $18,000-$24,000
- Tax credit savings: $5,400-$7,200
Large System (8kW):
- Average cost: $24,000-$32,000
- Tax credit savings: $7,200-$9,600
These figures apply to systems completed in 2025 or earlier. For a 2026 purchase, treat the credit as $0 when you calculate your net cost. To get accurate pricing for your specific situation, you can compare current solar panel prices and installation quotes on SolarPriceList.com.
Eligibility Requirements
The federal solar tax credit has specific eligibility criteria that determine whether you can claim this valuable benefit:
System Requirements
Your solar energy system must meet several technical requirements:
- New equipment only: The solar panels and components must be new, not used or refurbished
- Primary residence: The system must be installed at your primary or secondary residence in the United States
- Grid-tied or off-grid: Both grid-connected and standalone systems qualify
- Meet safety standards: Equipment must meet appropriate fire and electrical code requirements
Ownership Requirements
You must own the solar energy system to claim the tax credit. This means:
- Cash purchases: Full ownership allows you to claim the entire credit
- Solar loans: Financed systems qualify as long as you're the legal owner
- Solar leases and PPAs: These arrangements never qualified for the homeowner credit since you don't own the system
Tax Liability Requirements
The credit can only offset your federal income tax liability:
- Sufficient tax liability: You must owe federal income taxes to benefit from the credit
- No alternative minimum tax restrictions: The credit can offset alternative minimum tax (AMT)
- Carryforward available: Unused credits can be carried forward to future tax years
Low-income households with little or no tax liability: If your income is too low to use the ITC, you may still access significant solar savings through WAP (Weatherization Assistance Program), the IRA Low-Income Community Solar Adder, CA DAC-SASH free systems, IL Solar for All, Section 48E Low-Income Community bonus credits, and state-specific free and deeply discounted programs. See our complete Solar Energy for Low-Income Households guide for a full breakdown of who qualifies for what and how to apply.
Fixed-income households (Social Security, pension, 401k withdrawals): Even modest pension income or partially taxable Social Security creates ITC-absorbable tax liability. The credit carries forward indefinitely — a $7,500 ITC with $2,000/year in tax is fully claimed over 4 years. For carryforward strategy, the Roth conversion + solar ITC pairing, and optimal pre-retirement installation timing, see our Solar Energy for People on a Fixed Income guide.
Freelancers and gig workers with variable income: The ITC reduces regular income tax only — not self-employment tax (SE tax is calculated separately on Schedule SE). Variable income creates carryforward planning opportunities: install in your highest-income year to absorb the credit fastest. If you have a legitimate home office, part of the system may qualify for the more favorable Section 48 commercial ITC. See our Solar Energy for Freelancers and Gig Workers guide for complete variable-income ITC strategy.
Timeline and Phase-Out Schedule
Understanding the credit's timeline helps you plan your solar installation for maximum savings:
Current Credit Rates
- Through Dec 31, 2025: 30% residential credit (Section 25D)
- After Dec 31, 2025: no residential credit for homeowner-purchased systems
- Businesses (Section 48E): 30% for projects that began construction by July 4, 2026, or are placed in service by Dec 31, 2027
The old 26% (2033) and 22% (2034) step-downs no longer apply to homeowners, since the credit ended earlier.
Installation Timing
For homeowners, Section 25D counted an expenditure as made when the installation was finished, not when you paid a deposit. A system completed in 2025 qualifies; one finished in 2026 does not, even if you signed the contract in 2025. If you claim a 2025 system, the credit goes on your 2025 return, whenever the utility issued Permission to Operate. For the full PTO timeline, permit process, and state-by-state interconnection timelines, see the solar permit and inspection guide.
How to Claim the Solar Tax Credit
Claiming the federal solar tax credit involves specific steps and documentation:
Required Documentation
Gather these essential documents before filing:
- Installation contract: Shows system specifications and total costs
- Receipts and invoices: Proof of all system-related expenses
- Manufacturer certifications: Verify equipment meets federal standards
- Interconnection agreement: Confirms grid connection (if applicable)
Filing Process
The claiming process uses IRS Form 5695:
- Calculate qualified expenses: Total all eligible system costs
- Compute credit amount: Multiply qualified expenses by 30%
- Complete Form 5695: Report your credit calculation on Part I, Line 7 × 30% = Line 8
- Transfer to Form 1040: The credit flows from Form 5695 → Schedule 3 Line 5 → Form 1040 Line 20
For a complete step-by-step walkthrough with worked examples, see the IRS Form 5695 filing guide — it covers every line item, common filing mistakes, and how to handle carryforwards.
Professional Tax Help
Consider working with a tax professional who understands solar incentives, especially for complex situations involving:
- Multiple properties with solar installations
- Business use of residential property
- Coordination with state and local incentives
- Carryforward of unused credits
What Expenses Qualify?
The federal solar tax credit covers a comprehensive range of solar-related expenses:
Equipment Costs
- Solar panels: Photovoltaic modules and mounting hardware
- Inverters: Equipment that converts DC to AC electricity
- Batteries: Energy storage systems installed with solar panels
- Wiring and electrical components: All necessary electrical materials
Installation Costs
- Labor expenses: Professional installation services
- Permitting fees: Required permits and inspections
- Sales tax: Tax paid on equipment and services
- Contractor expenses: Site preparation and related work
Additional Qualifying Expenses
- Energy storage: Battery systems installed within one year of solar panels
- Ground-mounted systems: Installation on property separate from the home
- Roof work: Structural improvements necessary for solar installation
Combining with Other Incentives
Smart solar buyers stack multiple incentives to maximize their savings:
State and Local Incentives
Many states offer additional solar incentives that combine with the federal credit:
- State tax credits: Additional percentage-based credits on system costs
- Cash rebates: Upfront reductions from utilities or state programs
- Property tax exemptions: Over 35 states exempt solar from property reassessment — see the Solar Property Tax Exemptions 2026: Complete 50-State Guide
- Net metering: Sell excess electricity back to the grid at retail rates
Some of the strongest state-level stacks in 2026: New York's 25% state credit stacks directly on the federal ITC (unique among all 50 states); Massachusetts' SMART program pays $0.15–$0.22/kWh for 10 years on top of the 30% ITC; New Jersey's SREC II generates 15 years of certificate income; Illinois Shines offers 15-year REC contracts averaging $65–$80/REC; and Maryland's SREC market provides $60–$90/MWh for solar production. In the Southeast, South Carolina's 25% state tax credit (up to $3,500/year) is the highest in the region and stacks directly on the federal ITC.
For state-by-state breakdowns, see our dedicated guides:
Sun Belt & South: California · Texas · Florida · Arizona · Nevada · Colorado
Southeast: Georgia · North Carolina · South Carolina · Virginia · Tennessee · Arkansas · Oklahoma
Northeast & Mid-Atlantic: New York · New Jersey · Massachusetts · Connecticut · Rhode Island · New Hampshire · Vermont · Maine · Maryland · Pennsylvania · Virginia · Delaware · West Virginia
Southwest & Mountain West: New Mexico · Utah · Idaho · Montana · Wyoming
Pacific & Islands: Hawaii · Alaska
Midwest: Illinois · Michigan · Minnesota · Ohio · Indiana · Wisconsin · Missouri · Kentucky · Iowa · Nebraska · Kansas · North Dakota · South Dakota
Southeast: Georgia · Alabama · Mississippi · Louisiana · Arkansas · West Virginia
Pacific Northwest: Washington State · Oregon
Utility Programs
Local utilities often provide solar incentives:
- Performance-based incentives: Payments based on electricity production
- Upfront rebates: Immediate cash back upon installation
- Time-of-use rates: Favorable electricity pricing for solar customers
Financing Incentives
Solar-specific financing can enhance your savings:
- Low-interest solar loans: Reduced rates for qualified borrowers
- Property Assessed Clean Energy (PACE): Long-term financing through property taxes
- Manufacturer financing: Special rates from solar equipment companies
Common Questions and Misconceptions
Can I Claim Credits for Multiple Years?
The tax credit applies only once per system installation. However, if your credit exceeds your tax liability in the installation year, you can carry the unused portion forward to future tax years with no expiration date.
Do Solar Leases Qualify?
No, solar leases and power purchase agreements (PPAs) typically don't qualify because you don't own the system. Only system owners can claim the federal tax credit.
What About Rental Properties?
The federal solar tax credit applies only to residential properties you own and use as a residence. This includes primary and secondary homes but excludes pure rental properties, which may qualify for commercial solar credits under different rules. Rental property owners should use Section 48 of the IRC (not Section 25D) — see our Solar for Rental Properties & Landlords 2026 guide for Section 48 ITC mechanics, MACRS 5-year depreciation, year-one cost recovery math, and state PBI income strategies. Business owners should also see our Solar for Small Businesses 2026 guide.
Nonprofits, churches, schools, hospitals, tribal nations, and government entities: Since 2023, tax-exempt organizations can receive the Section 48 ITC as a direct cash payment (Elective Pay) — no federal taxes required. A church that spends $72,000 on solar receives an $18,000–$28,800 direct IRS check (30–40% depending on Energy Community status). See our Solar for Nonprofits and Tax-Exempt Organizations 2026 guide. Healthcare facilities — hospitals, medical offices, FQHCs, and tribal health clinics — have unique NFPA 99/110 and demand charge considerations; see our Solar for Healthcare Facilities 2026 guide. Tribal governments can also stack Elective Pay with DOE Office of Indian Energy grants (up to $3M, doesn't reduce ITC basis) for up to 85%+ Year 1 cost recovery; see our Solar for Tribal Nations 2026 guide. Rural electric cooperatives (501(c)(12) entities) are also explicitly listed in Section 6417 as Elective Pay-eligible — they can receive the 30% ITC as direct IRS cash for community solar, utility-scale solar, or cooperative facility installations; see our Solar for Rural Electric Cooperatives 2026 guide.
Can I Use the Credit for Pool Solar Heating?
No, the federal tax credit applies only to solar electric (photovoltaic) systems and solar water heating systems that heat water for use in your home. Pool heating systems don't qualify.
Does the Tax Credit Apply to Solar Water Heaters?
Yes — solar water heaters (solar thermal systems) qualified for the 30% Section 25D credit through 2025, the same as solar PV panels; like PV, they get no residential credit for 2026 purchases. The system must be SRCC-certified and used to heat domestic water (not pools or hot tubs). Solar water heaters appear on a separate line of Form 5695 ("Qualified Solar Water Heating Property Costs") but are claimed the same way. See our complete Solar Water Heater Guide 2026 for costs, savings, and payback analysis by fuel type.
Maximizing Your Solar Investment
To get the most from the federal solar tax credit:
Right-Size Your System
Work with qualified installers to design a system that matches your energy needs and budget. Oversized systems may not provide proportional benefits, while undersized systems miss potential savings.
Compare Multiple Quotes
Solar pricing varies significantly between installers. Get quotes from multiple qualified contractors to ensure competitive pricing. Use resources like SolarPriceList.com to compare current solar panel prices and find reputable installers in your area.
Domestic Content Bonus (Business Systems)
If your solar system uses qualifying U.S.-manufactured components — primarily panels made at U.S. facilities — the domestic content bonus adds 10 percentage points to your ITC, raising it from 30% to 40%. On a $35,000 system, that's an additional $3,500 credit. In Energy Community census tracts, the domestic content bonus stacks with the Energy Community adder to reach 50% ITC — the maximum federal solar incentive available.
Qualifying U.S.-made panel brands in 2026 include Q CELLS (Dalton, Georgia), Silfab Solar (Bellingham, Washington), Boviet Solar (Roanoke, Virginia), First Solar (Ohio/Alabama), and Heliene (Minnesota). Ask your installer whether they stock domestic content qualifying equipment and whether your full system meets the 55% manufactured products threshold required in 2026.
See our complete Domestic Content Solar Bonus Credit 2026 guide for brand-by-brand qualification details, the two-part IRS test, financial analysis of whether the premium pays off, and the documentation you need to claim the bonus.
Consider Energy Storage
Home battery storage qualified for the 30% credit through 2025, with or without solar. For 2026 purchases, homeowners have no federal battery credit, though business-owned storage can still qualify under Section 48E. See our dedicated Home Battery Tax Credit 2026 guide for a complete walkthrough of what costs qualify, Energy Community bonus eligibility for batteries, and state battery credits that stack on top of the federal ITC.
Time Your Installation
If you are a business owner, ask your tax professional about Section 48E timing and the 2027 placed-in-service deadline. Homeowners no longer have a federal credit to time around, so shop on price and warranty.
The residential federal credit was one of the most valuable clean energy incentives available, and it has now closed for new home purchases. Business credits, state incentives, net metering and falling equipment prices still make solar worth pricing out in many places.
To see how losing the credit affects your specific payback timeline and lifetime ROI, use our solar payback period calculator guide, which includes step-by-step worksheets and state-by-state payback examples. For total installed cost benchmarks before applying the credit, see our solar panel installation cost guide. To compare how the ITC changes solar ROI across all 50 states simultaneously — with payback periods, 25-year savings, and IRR side by side — see the solar ROI by state comparison guide.