The federal solar Investment Tax Credit (ITC) is one of the most powerful financial incentives available to American homeowners and businesses. In 2025, it offers a 30% tax credit on the full cost of a solar installation — potentially saving you $5,000 to $10,000 or more on a typical residential system.
Here's everything you need to know to take full advantage of it.
What Is the Federal Solar Tax Credit?
The Investment Tax Credit (ITC) allows you to deduct 30% of your total solar installation costs directly from your federal income tax liability. This is a tax credit, not a deduction — meaning it reduces what you owe dollar-for-dollar, not just your taxable income.
What's Covered by the Solar ITC?
The tax credit applies to the complete cost of your solar installation, including:
- Solar panels and racking hardware
- Inverter (string, microinverter, or power optimizer)
- Battery storage systems (if charged predominantly by solar)
- Electrical wiring, conduit, and labor
- Permitting, inspection, and interconnection fees
- Sales tax on equipment
Not covered: Roof replacement or repair costs (unless directly required for the solar installation), standalone battery systems not connected to solar, or grid-tied systems not on your primary or secondary residence.
Who Qualifies for the 30% Solar Tax Credit?
Homeowners
You qualify if you:
- Own (not lease) the solar panel system
- Install it on your primary or secondary U.S. residence
- Have federal income tax liability to offset
Renters and Lease/PPA Customers
If you're renting your home or entering a solar lease/PPA, the installer — not you — owns the panels and claims the ITC. You will not receive the tax credit, though the installer may pass some benefit through lower lease rates.
Businesses
Commercial properties and businesses can claim the ITC on commercial solar installations, often with additional bonus depreciation available under MACRS.
ITC Schedule: When Does It Expire?
The Inflation Reduction Act (IRA) of 2022 extended and expanded the ITC through 2032. Here is the current schedule:
| Year of Installation | Credit Rate |
|---|---|
| 2022 – 2032 | 30% |
| 2033 | 26% |
| 2034 | 22% |
| 2035 and beyond | 0% (residential); 10% (commercial) |
The key takeaway: if you install solar in 2025, you lock in the full 30% rate. Waiting until after 2032 means leaving significant money on the table.
How to Claim the Solar Tax Credit
Claiming the ITC is straightforward and handled when you file your annual federal income tax return:
- Step 1: Install your solar system and receive your final invoice with itemized costs
- Step 2: Complete IRS Form 5695 ("Residential Energy Credits") when filing your taxes
- Step 3: Enter your total solar installation costs on line 1 and calculate 30% credit
- Step 4: Transfer the credit amount to Schedule 3 and then to Form 1040 Line 20
- Step 5: If your credit exceeds your tax liability this year, the remaining balance carries forward to the following tax year
What If My Credit Exceeds My Tax Bill?
The ITC is not refundable — meaning you won't receive a check if the credit exceeds your liability. However, unused credits roll forward to future tax years until fully utilized. This makes it still valuable even if you have a lower tax bill one year.
Stacking ITC with State and Local Incentives
The federal ITC can be combined with state-level tax credits, utility rebates, and Solar Renewable Energy Credits (SRECs) for maximum savings. Some of the best state incentive stacks include:
- New York: 25% state credit (up to $5,000) + federal 30% = up to 55% combined
- Massachusetts: 15% state credit + SREC income + federal 30%
- New Jersey: SREC income + federal 30%
- California: Property Tax Exclusion + utility rebates + federal 30%
Calculate Your ITC Savings Right Now
Our free solar cost calculator automatically applies the 30% tax credit to your estimate so you can see your real net cost instantly.
Use the Free Calculator →Ready to learn more? Read our complete guide to Solar Panel Costs in 2025 or calculate your solar payback period and ROI.