Federal Solar Tax Credit 2026: How to Claim the ITC
The federal solar tax credit, officially known as the Investment Tax Credit (ITC), allows homeowners to deduct 30% of their total solar panel installation cost from their federal income taxes. For a $22,000 solar system, that translates to a $6,600 tax credit that directly reduces what you owe the IRS. The 30% rate is guaranteed through 2032 under the Inflation Reduction Act, making 2026 one of the best years to go solar.
How the Solar Tax Credit Works
Tax Credit vs. Tax Deduction
A tax credit is far more valuable than a tax deduction. While a deduction reduces your taxable income (saving you a percentage of the deduction based on your tax bracket), a credit reduces your actual tax bill dollar for dollar. A $6,600 solar tax credit saves you exactly $6,600 in federal taxes, regardless of your income level or tax bracket.
The solar ITC is a nonrefundable credit, meaning it can reduce your tax liability to zero but cannot generate a refund beyond what you already owe. If your total tax liability for the year is less than your credit amount, the unused portion rolls forward to the next tax year.
The ITC Timeline and Phase-Down Schedule
| Year System Placed in Service | ITC Rate | Credit on $25,000 System |
|---|---|---|
| 2022 through 2032 | 30% | $7,500 |
| 2033 | 26% | $6,500 |
| 2034 | 22% | $5,500 |
| 2035 and after | 0% (residential) | $0 |
The Inflation Reduction Act of 2022 extended and expanded the solar ITC. The 30% rate applies to systems installed from 2022 through 2032. After 2034, the residential credit expires entirely (commercial systems retain a reduced credit).
What Costs Qualify for the Credit
- Solar panels and cells: the photovoltaic modules themselves, including shipping costs
- Inverters: string inverters, microinverters, or power optimizers
- Mounting equipment: racking, rails, and roof attachments
- Wiring and electrical components: conduit, disconnects, monitoring systems
- Labor costs: installation, electrician work, and engineering
- Permitting fees: building permits, utility interconnection fees, inspection costs
- Battery storage: home batteries installed with or after solar (added by the IRA)
- Sales tax: state and local sales tax paid on the system
Notably, roof repairs or replacement costs do NOT qualify, even if required before solar installation. Only solar-specific expenses count toward the credit.
Eligibility Requirements
Who Qualifies
You qualify for the solar ITC if you own the solar panel system (purchased, not leased), the system is installed on property you own in the United States, the system is new or being used for the first time (no used panel credits for residential), and you have sufficient federal tax liability to use the credit.
If you lease your solar panels or sign a PPA, the leasing company claims the credit — not you. This is one of the key financial differences between buying and leasing solar.
Primary vs. Secondary Residences
The solar ITC applies to your primary residence and secondary residences (vacation homes). It does NOT apply to rental properties where you are the landlord (commercial ITC rules apply in that case). If you install solar on a home that is partially rented out (like a duplex where you live in one unit), you can claim the credit proportional to your personal use.
New Construction
Solar panels installed on a newly built home qualify for the ITC. The qualifying cost is limited to the solar-specific expenses — you cannot claim the cost of the roof or general construction. Make sure your builder provides an itemized invoice separating solar costs from other construction costs.
How to Claim the Solar Tax Credit: Step by Step
Step 1: Gather Documentation
Collect all invoices and receipts from your solar installer, including the final contract showing the total system cost, invoices for any additional qualified expenses (battery storage, permitting), proof of installation completion (certificate of completion, inspection sign-off), and IRS Form 5695 instructions for the current tax year.
Step 2: Complete IRS Form 5695
IRS Form 5695 (Residential Energy Credits) is the form you need to claim the solar ITC. On Part I, enter your total qualifying solar expenses. Multiply by 30% to calculate your credit. Transfer the credit amount to Schedule 3 of your Form 1040 (line 5).
Step 3: File Your Tax Return
File your regular federal tax return including Form 5695 and Schedule 3. The credit will reduce your total tax liability for the year. Most taxpayers file the credit in the year the system is "placed in service" (operational and connected to the grid), not necessarily the year it was purchased or contracted.
Step 4: Carry Forward if Needed
If your tax liability is less than your credit amount, you do not lose the excess. The unused credit carries forward to the following tax year. For example, if your credit is $7,500 but your tax liability is only $5,000, the remaining $2,500 carries to next year. There is no time limit on the carryforward (though the law must still be in effect).
Common Mistakes When Claiming the Solar ITC
Claiming the Credit on a Leased System
If you signed a lease or PPA agreement, you do not own the system and cannot claim the ITC. This is the most common mistake. Before signing any solar agreement, confirm whether you are purchasing or leasing.
Using the Wrong Tax Year
The credit applies in the year the system is placed in service (fully installed, inspected, and connected), not the year you signed the contract or made payments. A system contracted in 2025 but not operational until 2026 is claimed on your 2026 tax return.
Forgetting to Include Battery Storage
Since the IRA passed in 2022, standalone battery storage systems qualify for the 30% ITC even without solar panels. If you added a battery system, make sure to include its cost in your Form 5695 calculation.
Stacking the ITC with State Incentives
State Tax Credits
Some states offer their own solar tax credits that stack with the federal ITC. However, if a state credit reduces your net system cost, you may need to reduce the federal ITC base accordingly. Consult a tax professional to ensure proper stacking.
Utility Rebates
Cash rebates from utilities are generally NOT subtracted from your ITC base if they are considered a rebate (not income). A $2,000 utility rebate on a $22,000 system means you still claim the full $22,000 for the 30% federal credit. However, tax rules can be complex — document everything and consult a tax advisor.
SRECs (Solar Renewable Energy Certificates)
In states with SREC markets (New Jersey, Massachusetts, Maryland, Pennsylvania, Washington DC), you can sell SRECs generated by your system for additional income. SREC income is taxable but does not reduce your ITC amount. Some homeowners earn $1,000-$3,000 per year from SRECs, significantly improving their solar ROI.
FAQ
Is the solar tax credit still available in 2026?
Yes, the federal solar tax credit remains at 30% for systems installed through 2032 under the Inflation Reduction Act. It steps down to 26% in 2033 and 22% in 2034. After 2034, the residential credit expires. There is no cap on the credit amount — it applies to the full qualifying cost of your solar installation.
Can I claim the solar tax credit if I do not owe that much in taxes?
If your tax liability is less than your solar tax credit, the unused portion carries forward to future tax years. For example, with a $7,500 credit and $4,000 tax liability, you use $4,000 this year and carry $3,500 to the next year. The credit cannot generate a refund (it is nonrefundable), but you will not lose the unused amount.
Does the solar tax credit apply to battery storage?
Yes, since the Inflation Reduction Act of 2022, standalone battery storage systems with a capacity of at least 3 kWh qualify for the 30% federal tax credit, even without solar panels. This includes popular systems like Tesla Powerwall, Enphase IQ, and Franklin WH. Include battery costs on IRS Form 5695 along with your solar expenses.