Free Solar Tool
Solar Tax Credit Calculator
See your exact federal solar ITC (30% through 2032), add state and utility incentives, and instantly calculate your net system cost after all incentives. Updated for 2025.
See Solar Proposal SoftwareCalculate Your Solar Tax Credit
Enter your total system cost and install year. Add battery storage, state incentives, and utility rebates for a complete picture of your net cost.
Total installed cost before any incentives. US average ~$3/watt installed.
Also ITC-eligible (30%). Leave blank if none.
NY: up to $5,000. MA: up to $1,000. SC: up to $3,500.
Upfront rebate from your utility. Check with your provider.
Federal tax credit
$7,500
30% ITC (2025)
Total incentives
$7,500
Net cost to you
$17,500
Effective cost
70%
of gross system cost
Gross system cost
$25,000
Federal ITC rate
30%
Est. system size
~8.3 kW
at $3/watt avg installed
Tax credit amounts depend on your individual tax liability. The ITC is nonrefundable — if your tax liability is less than the credit, unused amounts carry forward to future years. Consult a qualified tax advisor to confirm eligibility and optimize your claim timing.
How the Solar Tax Credit Works
The 30% ITC reduces your federal taxes dollar-for-dollar
The Residential Clean Energy Credit (ITC) equals 30% of your total installed solar system cost — panels, inverter, mounting hardware, wiring, labor, and permitting. For a $25,000 system, that is $7,500 applied directly against your federal tax bill. It is not a deduction — it is a credit, meaning you owe $7,500 less in taxes.
The credit applies to battery storage too
Under the Inflation Reduction Act, standalone battery storage systems became ITC-eligible starting January 1, 2023. Batteries installed with solar have been eligible since 2022. The full 30% credit applies to the battery's installed cost as long as it is charged primarily from solar (at least 75%).
Unused credit carries forward
The ITC is nonrefundable — it can reduce your tax liability to zero but won't generate a refund for the excess. However, any credit you can't use in the install year carries forward to future tax years. This makes the credit fully accessible as long as you have sufficient tax liability over multiple years.
The credit steps down after 2032
The 30% rate is guaranteed through December 31, 2032. It drops to 26% in 2033 and 22% in 2034, then is eliminated for residential systems in 2035. Installing by the end of 2032 maximizes your federal benefit. The commercial ITC continues at 30% indefinitely for most projects.
State Solar Incentives Reference
These are in addition to the federal 30% ITC. Check your state energy office for current availability and eligibility requirements.
State incentive programs change frequently. Verify with your state energy office before making purchasing decisions.
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Solar Tax Credit FAQ
What is the federal solar tax credit?
The federal solar Investment Tax Credit (ITC) lets homeowners and businesses deduct 30% of their total solar installation cost from federal taxes through 2032. For a $25,000 system, that's a $7,500 credit applied dollar-for-dollar against your federal tax bill — not a deduction, but a direct credit.
Is the solar tax credit a deduction or a credit?
It's a tax credit — not a deduction. A deduction reduces taxable income; a credit reduces taxes owed dollar-for-dollar. If you owe $8,000 in taxes and have a $7,500 solar credit, you only pay $500. Unused credit carries forward to future years.
How do I claim the solar tax credit?
File IRS Form 5695 (Residential Energy Credits) with your federal tax return for the year the system is installed. The credit is 30% of total installed cost including panels, inverter, hardware, installation, and permitting. You don't need to itemize — it's available with the standard deduction.
Can I claim the solar ITC with solar financing?
Yes — if you own the system (solar loan), you get the full 30% ITC. If you lease the system or have a PPA, the leasing company owns the system and claims the credit. Always confirm ownership structure before purchasing.
Does the solar tax credit apply to battery storage?
Yes — standalone battery storage systems are ITC-eligible at 30% starting January 2023. Batteries installed with solar have been eligible since 2022. The full credit applies to the battery's installed cost as long as it's charged at least 75% from solar.
Are there state solar incentives in addition to the federal credit?
Yes — many states offer additional incentives: NY (25% credit up to $5,000), MA (15% up to $1,000), SC (25% up to $3,500), IA (15%). Many states also offer sales tax and property tax exemptions. Check your state energy office for current programs.
What if my tax liability is less than the credit?
The ITC is nonrefundable but carries forward. If you can't use the full $7,500 in one year, unused amounts carry forward to future tax years until 2034. Consult a tax advisor to plan the optimal claiming strategy.
Does the solar tax credit include installation costs?
Yes — the 30% ITC covers the total installed cost: panels, inverter, mounting hardware, wiring, labor, permitting, and inspection fees. It also covers battery storage. It does not cover extended warranties, roof repairs, or panel upgrades unrelated to the solar system.
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SubcontractorHub helps solar contractors show customers the real cost after incentives — and close deals on the spot with financing and e-signature.
Book a Free DemoThis calculator provides estimates for planning purposes only. Tax credit eligibility and amounts depend on your individual tax situation. Consult a qualified tax advisor before making purchasing decisions.