title: Complete Guide to Filing for the Solar Tax Credit updated: 2026-02-10 difficulty: Intro tags: ["tax credit", "ITC", "25D", "filing", "IRS", "Form 5695"] summary: Step-by-step instructions for claiming the federal solar Investment Tax Credit on your tax return.
How to Claim the Solar Tax Credit (Section 25D)
The federal Residential Clean Energy Credit (commonly called the solar ITC) provides a 30% tax credit on the cost of solar panels, batteries, and related equipment. This guide walks you through the filing process.
What Qualifies
Eligible Equipment
- Solar photovoltaic (PV) panels
- Inverters (string, micro, optimizers)
- Racking and mounting hardware
- Balance-of-system components (wiring, disconnects, monitoring)
- Battery energy storage (3 kWh+ minimum capacity)
- Installation labor
- Permitting and inspection fees
- Sales tax on the above (if applicable)
- Energy storage added to existing solar (doesn't need to charge from solar)
NOT Eligible
- Roof repairs or replacement (unless directly related to solar installation — e.g., structural reinforcement specifically for panels)
- General electrical panel upgrades (unless required specifically for the solar/battery system)
- Tree removal for solar access
- Extended warranty purchases
- Monitoring subscription fees
Step-by-Step Filing Instructions
Step 1: Gather Documentation
From your solar installer, you need:
- Final invoice / contract with itemized costs
- Proof of payment (bank statements, canceled checks, or credit card statements)
- System completion date (the date the system was placed in service — typically the PTO date or final inspection date)
- Equipment list with make/model numbers
Step 2: Determine Your Qualified Expenditures
Add up all eligible costs:
| Item | Example Cost | |------|:-:| | Solar panels + inverters | $18,000 | | Racking and electrical BOS | $3,000 | | Installation labor | $4,000 | | Permitting fees | $500 | | Battery storage | $10,000 | | Total qualified expenditures | $35,500 | | Credit (30%) | $10,650 |
Step 3: Complete IRS Form 5695
Form 5695 (Residential Energy Credits) is the form used to calculate and claim the credit. You'll fill out Part I for the Residential Clean Energy Credit.
Line-by-line:
- Line 1: Qualified solar electric property costs = your total from Step 2 (solar portion)
- Line 5a: (If applicable) Qualified battery storage technology costs
- Line 6b: Total qualified expenditures (sum of applicable lines)
- Line 13: Multiply Line 6b by 30% (0.30) — this is your credit
- Line 14: Tax liability limit (from your tax return — the credit cannot exceed your total tax liability)
- Line 15: The credit you can claim this year (lesser of Line 13 and Line 14)
Step 4: Transfer to Your Tax Return
- Transfer the credit from Form 5695, Line 15 to Schedule 3 (Form 1040), Line 5
- Schedule 3, Line 8 flows to Form 1040, Line 20
Step 5: Carry Forward (If Applicable)
If your tax credit exceeds your tax liability:
- The excess carries forward to the next tax year
- Example: Your credit is $10,650 but your total federal tax liability is $7,000. You claim $7,000 this year and carry forward $3,650 to next year's return.
- The carryforward continues until the credit is fully used (there is no expiration, though this is not explicitly stated in the statute — IRS guidance has consistently allowed it)
Common Questions
When Do I Claim — Installation Date or Payment Date?
The credit is claimed in the tax year the system is placed in service (operational / PTO date). If you pay in 2025 but the system isn't operational until 2026, you claim in 2026.
Can I Claim If I Financed the System?
Yes. The full cost of the system qualifies, even if you took a solar loan. The credit is based on the purchase price, not the amount you paid out of pocket. However, if you have a solar lease or PPA, the leasing company claims the credit — not you.
What About State Incentives?
State rebates that reduce your purchase price do reduce the credit basis. Example: $25,000 system - $2,000 state rebate = $23,000 basis for the 30% credit = $6,900.
Utility rebates may or may not reduce the basis depending on how they're structured — consult your tax advisor.
SRECs (Solar Renewable Energy Certificates) do not reduce your credit basis because they are income earned after installation, not a rebate on the purchase.
What If I'm Married Filing Jointly?
Both spouses' tax liability counts, which gives a larger pool for the credit. If filing separately, only the taxpayer who owns the property (or has the agreement) can claim the credit.
Can I Claim for a Rental Property?
No. Section 25D applies only to your primary or secondary residence. For rental/commercial properties, the Section 48 Investment Tax Credit applies (different rules, must claim as a business).
Record Keeping
Keep these documents for at least 6 years (IRS audit window):
- Signed contract with the installer
- All invoices and receipts
- Proof of payment
- System design and specifications
- Building permits and inspection approvals
- Interconnection agreement with your utility
- Equipment warranties and serial numbers
- Photos of the installed system
Credit Schedule
| Installation Year | Credit Percentage | |:-:|:-:| | 2022–2032 | 30% | | 2033 | 26% | | 2034 | 22% | | 2035+ | 0% (unless extended by Congress) |
The 30% rate was extended through 2032 by the Inflation Reduction Act (August 2022). Plan installations accordingly.
Tax Software
All major tax software (TurboTax, H&R Block, FreeTaxUSA, TaxAct) includes Form 5695. Look for sections labeled "Energy Credits," "Residential Energy Credits," or "Solar Tax Credit." The software will walk you through the same steps described above.
If your tax situation is complex (carryforward, business use of home, multiple properties), consulting a CPA or Enrolled Agent familiar with energy tax credits is well worth the fee ($150–$600 for a return including energy credits).