Quick Answer
Section 25D provides a 30% federal tax credit for residential solar installations through 2032. The credit equals 30% of qualified solar costs—equipment, installation, permits—and reduces your tax liability dollar-for-dollar. A $25,000 solar system generates a $7,500 credit that directly cuts your tax bill.
Best Answer
Robert Kim, CPA
Best for homeowners who want to understand the technical details of the solar tax credit
Understanding Section 25D: The Residential Clean Energy Credit
Section 25D of the Internal Revenue Code is the federal law that created and governs the residential clean energy credit, commonly called the "solar tax credit" or "solar ITC." This provision allows homeowners to claim a tax credit equal to 30% of qualified residential clean energy property costs.
How Section 25D calculates your credit
The credit equals 30% of your "qualified solar electric property expenditures" for the tax year. This includes:
Qualified costs under Section 25D:
Example: Section 25D calculation breakdown
The Johnsons install solar in 2026 with these costs:
Section 25D credit rates by year
According to the Inflation Reduction Act of 2022, the 30% rate was extended through 2032, giving homeowners a longer window to take advantage of the maximum credit.
Key Section 25D requirements and limitations
Property requirements:
Credit limitations:
Section 25D vs. other energy credits
Section 25D covers multiple types of residential clean energy, not just solar:
How to claim the Section 25D credit
1. File IRS Form 5695 (Residential Energy Credits) with your tax return
2. Report total qualified expenses in Part I of the form
3. Calculate 30% of qualified costs (the form does this automatically)
4. Transfer the credit to your Form 1040, Schedule 3
5. Carry forward unused credits to future years if needed
Common Section 25D mistakes to avoid
Mistake 1: Claiming credits for pool heating or hot tub systems (not qualified)
Mistake 2: Claiming credits for leased solar systems (only owners qualify)
Mistake 3: Including non-solar costs like roof repairs (not qualified unless necessary for installation)
Mistake 4: Not keeping detailed receipts and contracts (required for IRS verification)
What you should do
1. Verify your system qualifies under Section 25D requirements
2. Keep comprehensive records of all installation costs and contracts
3. Work with certified installers who understand tax credit requirements
4. File Form 5695 with your tax return for the installation year
5. Plan for carryforward if your credit exceeds current year tax liability
Key takeaway: Section 25D provides a 30% federal tax credit for residential solar through 2032, with no income limits and indefinite carryforward for unused credits—making it one of the most generous residential energy incentives in the tax code.
*Sources: [IRC Section 25D](https://www.law.cornell.edu/uscode/text/26/25D), [IRS Form 5695](https://www.irs.gov/pub/irs-pdf/f5695.pdf)*
Key Takeaway: Section 25D provides a 30% federal tax credit through 2032 with no income limits and indefinite carryforward, making it one of the most valuable residential energy incentives available.
Section 25D credit rates and qualified equipment
| Equipment Type | Credit Rate (2022-2032) | Minimum Requirements | Example Credit |
|---|---|---|---|
| Solar panels | 30% | Generate electricity | $6,000 on $20,000 system |
| Battery storage | 30% | 3+ kWh, charged by renewable | $3,600 on $12,000 battery |
| Geothermal heat pump | 30% | ENERGY STAR certified | $4,500 on $15,000 system |
| Small wind turbine | 30% | 100kW capacity or less | $3,000 on $10,000 turbine |
More Perspectives
Diana Flores, EA
Best for homeowners planning their first solar installation and wanting to understand the legal framework
Section 25D for first-time solar homeowners: A practical guide
If you're planning your first solar installation, understanding Section 25D helps you maximize your tax benefits and avoid common first-timer mistakes.
Why Section 25D matters for your planning
Section 25D isn't just about getting a tax break—it's about timing and strategy. The credit is claimed in the year you complete installation, not when you sign contracts or make payments. This timing rule affects:
Installation timing:
First-timer planning example
Sarah signs a solar contract in November 2025 for $28,000, pays a $5,000 deposit, but installation isn't completed until February 2026:
Section 25D qualified expenses for beginners
Always included:
Sometimes included:
Never included:
Common first-timer questions about Section 25D
Q: Do I need to itemize to claim this credit?
No. Section 25D is a tax credit, not a deduction. You can take the standard deduction and still claim the solar credit.
Q: What if I don't owe enough taxes to use the full credit?
The credit carries forward indefinitely. Install a $30,000 system generating a $9,000 credit but only owe $3,000 in taxes? Use $3,000 this year, carry $6,000 to next year.
Q: Can I claim the credit if I finance the solar system?
Yes, as long as you own the system. Solar loans, home equity loans, and cash purchases all qualify. Solar leases do not.
Working with installers: Section 25D considerations
Make sure your installer:
Key takeaway: Section 25D allows first-time solar installers to claim 30% of installation costs as a tax credit in the year the system becomes operational, with indefinite carryforward for unused credits and no requirement to itemize deductions.
*Sources: [IRS Publication 970](https://www.irs.gov/pub/irs-pdf/p970.pdf)*
Key Takeaway: First-time solar installers can claim Section 25D credits in the year installation is completed, with indefinite carryforward if the credit exceeds tax liability.
Robert Kim, CPA
Best for homeowners who already have solar and want to understand expansions or battery additions
Section 25D for solar system expansions and battery additions
If you already have solar panels, you can still benefit from Section 25D by expanding your system or adding qualifying energy storage equipment.
Adding to existing solar systems
Section 25D doesn't limit you to one-time installations. You can claim additional credits for:
System expansions:
Energy storage additions:
Example: Battery addition to existing solar
Tom installed solar panels in 2023 and claimed a $6,000 credit. In 2026, he adds a Tesla Powerwall for $12,000:
Section 25D rules for storage systems
Battery qualification requirements:
Mixed charging sources:
If your battery can be charged by both solar and the grid, you can still claim the credit. The IRS doesn't require 100% solar charging—just that solar is one of the charging sources.
Timing considerations for existing solar owners
Since the Section 25D credit steps down after 2032, existing solar owners should consider:
2026-2032: 30% credit rate
2033-2034: Reduced credit rates (26%, then 22%)
2035+: No federal credit
Documentation for additional Section 25D claims
For system additions, keep:
Key takeaway: Existing solar owners can claim additional Section 25D credits for system expansions and battery storage through 2032, as long as new equipment meets qualification requirements and batteries are charged by renewable energy sources.
*Sources: [IRC Section 25D](https://www.law.cornell.edu/uscode/text/26/25D)*
Key Takeaway: Existing solar owners can claim additional Section 25D credits for system expansions and qualifying battery storage through 2032.
Sources
- IRC Section 25D — Residential Clean Energy Credit tax code provision
- IRS Form 5695 — Residential Energy Credits form and instructions
- IRS Publication 970 — Tax Benefits for Education and Energy Credits
Related Questions
Reviewed by Diana Flores, EA on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.