If you’re thinking about going solar, one number should be at the top of your mind: 30%. That’s the percentage of your total solar installation cost you can deduct directly from your federal income taxes thanks to the Investment Tax Credit (ITC).
For a typical $20,000 solar installation, that’s a $6,000 reduction in your tax bill. For a $30,000 system, it’s $9,000 back in your pocket.
This guide explains everything you need to know about the solar tax credit in 2026 — who qualifies, how to claim it, and what happens as the deadline approaches.
What Is the Solar Investment Tax Credit?
The Investment Tax Credit (ITC), officially under Section 48E of the Internal Revenue Code (modified by the Inflation Reduction Act of 2022), allows homeowners to claim a 30% credit on the full cost of a solar photovoltaic (PV) system installed on their primary or secondary residence.
Unlike a tax deduction (which reduces your taxable income), a tax credit directly reduces your tax bill, dollar for dollar. If you owe $8,000 in federal taxes and install a solar system that earns you a $6,000 credit, you’ll only owe $2,000.
What the ITC Covers
The 30% credit applies to:
- Solar panels (PV modules)
- Inverters (string, microinverters, power optimizers)
- Mounting hardware and racking
- Wiring, electrical work, and related equipment
- Battery storage (when installed with solar or as a standalone system in 2026+)
- Installation labor costs
- Permitting and inspection fees
- Sales taxes on all of the above
This means you claim 30% of your entire project cost — including labor — not just the panels themselves.
Want to know exactly how much you’d save with the 30% tax credit? Get a free quote from a local installer and see your personalized numbers.
Who Qualifies for the Solar Tax Credit?
Basic Eligibility Requirements
To claim the federal solar tax credit in 2026, you must:
-
Own the solar system — you cannot claim the credit if you lease your panels or have a Power Purchase Agreement (PPA). The installer owns the system in those cases.
-
Install it on a qualifying property — the solar system must be on:
- Your primary U.S. residence
- A secondary/vacation home in the U.S. (must be used by you, not rented out)
-
Have U.S. federal tax liability — the credit can only offset taxes you owe. If you owe nothing, you can’t receive it as a cash refund. However, the credit carries forward to future tax years.
-
Install a new system — the credit applies to new solar installations, not the purchase of a home that already has solar.
-
Have the system operational — the solar system must be installed and activated (connected to the grid) in the tax year you claim the credit.
Does Filing Status Matter?
No. Whether you file as single, married filing jointly, head of household, or any other status, the credit is available as long as you meet the eligibility requirements above.
What If My Tax Credit Exceeds My Tax Bill?
The ITC is a non-refundable credit — meaning you can’t receive a cash refund if the credit exceeds your tax liability. However, unused credit carries forward to the following tax year. If you owe $4,000 in taxes but have a $7,000 credit, you’d use $4,000 this year and carry $3,000 forward to next year’s return.
How to Claim the Solar Tax Credit Step by Step
Step 1: Install Your Solar System
Have your solar system professionally installed and interconnected with the grid. Make sure you receive:
- A final contract and paid invoice from your installer
- Interconnection approval from your utility
Step 2: Keep All Your Documentation
Save all documentation related to your solar installation:
- Signed contract with the installer
- All invoices and receipts
- Manufacturer certifications for the equipment (confirms it meets U.S. standards)
- Interconnection agreement from your utility
Step 3: File IRS Form 5695
When you file your federal taxes, complete IRS Form 5695 (Residential Energy Credits). Here’s what you’ll fill out:
Part I asks you to:
- Enter the total cost of your solar system (line 1)
- Calculate 30% of that cost (line 6a)
- That amount flows to Schedule 3 of your Form 1040 as a credit
Example:
- Total system cost: $22,000
- ITC amount (30%): $6,600
- This $6,600 credits directly against your tax bill
Step 4: Apply the Credit on Your 1040
The credit from Form 5695 transfers to Schedule 3, Line 5 (“Residential Clean Energy Credit”), which then flows to your Form 1040 Line 20 to reduce your total tax bill.
Step 5: Handle Any Carryforward
If the credit exceeds your tax liability, note the carryforward amount on Form 5695 Line 16. You’ll apply this amount in the following tax year.
Should I Use a Tax Professional?
While Form 5695 is fairly straightforward, using a CPA or enrolled agent familiar with energy credits is recommended if:
- Your credit is large ($10,000+)
- You have complex taxes (business income, AMT exposure, etc.)
- You’re also claiming state solar credits
Solar Tax Credit Timeline: Act Before the Deadline
The solar ITC structure is defined by the Inflation Reduction Act (IRA) of 2022:
| Year | ITC Rate |
|---|---|
| 2022–2032 | 30% |
| 2033 | 26% |
| 2034 | 22% |
| 2035+ | 0% (residential) |
2026 is a great time to go solar — you’re guaranteed the full 30% rate for several more years. But keep in mind:
- You must install AND activate the system in the tax year you want to claim the credit
- Solar installations typically take 1–3 months from contract signing to activation
- If you sign in October, you might not get grid approval until January — which would push your credit to the next tax year
Our recommendation: If you want to capture the 2026 tax credit, start the quote process by September 2026 to allow time for installation and interconnection before year-end.
Battery Storage and the ITC in 2026
A significant update from the Inflation Reduction Act: starting in 2023, standalone battery storage systems (without solar) are also eligible for the 30% ITC, as long as they have a minimum 3 kWh capacity.
This means:
- Adding a Tesla Powerwall, Enphase IQ Battery, or similar to a new solar installation? It’s covered under the ITC.
- Already have solar and want to add a battery in 2026? The battery alone qualifies for the 30% credit.
State Solar Tax Credits in 2026
In addition to the federal ITC, several states offer their own solar tax credits:
| State | State Credit | Notes |
|---|---|---|
| New York | 25% (up to $5,000) | Claimed on NY IT-255 form |
| Massachusetts | 15% (up to $1,000) | Claimed on MA Schedule EC |
| South Carolina | 25% (up to $3,500) | 5-year carryforward |
| Arizona | 25% (up to $1,000) | — |
| Utah | 25% (up to $1,600) | Subject to appropriations |
| Montana | 100% (up to $500) | Small but useful |
| Iowa | 15% (up to $5,000) | — |
Note: State and federal credits are independent. You can claim both. State credits do not reduce your federal credit basis.
Example (New York homeowner):
- System cost: $25,000
- Federal ITC (30%): –$7,500
- New York state credit (25%, max $5,000): –$5,000
- Total credits: $12,500
- Net effective cost: $12,500 (50% savings from original price)
Common Mistakes When Claiming the Solar Tax Credit
Mistake #1: Claiming a Leased System
If you don’t own your solar panels, you cannot claim the ITC. Before signing any solar contract, confirm whether it’s a purchase, loan, lease, or PPA. Only purchases and loans (where you own the equipment) qualify.
Mistake #2: Missing the Installation Deadline
The credit applies to the tax year in which the system is placed in service (activated and operational). Start the process early enough to ensure your installer can complete the job before December 31.
Mistake #3: Not Capturing the Carryforward
If you don’t use the full credit in one year, make sure to note and apply the carryforward amount on next year’s Form 5695. This is a common oversight.
Mistake #4: Forgetting to Include All Eligible Costs
Remember: the ITC covers the entire project cost including labor, permits, and sales tax — not just the hardware. Use your final paid invoice total when calculating your credit.
How Much Is the Tax Credit Worth to You?
Your benefit depends on your total system cost and your tax liability. Here are some examples:
| System Cost | ITC (30%) | Tax Owed | Credit Used | Carryforward |
|---|---|---|---|---|
| $15,000 | $4,500 | $5,000 | $4,500 | $0 |
| $20,000 | $6,000 | $5,000 | $5,000 | $1,000 |
| $25,000 | $7,500 | $6,000 | $6,000 | $1,500 |
| $30,000 | $9,000 | $10,000 | $9,000 | $0 |
If you have low tax liability, you may want to consider timing your installation to spread the credit across two years, or consult a tax advisor.
Don’t miss out on the 30% tax credit. The first step is getting quotes from qualified local installers.
Key Takeaways
- The federal solar ITC gives you a 30% tax credit on the full installed cost of your solar system in 2026
- You must own the system (not lease) to claim the credit
- The credit applies against your federal tax liability; unused amounts carry forward to future years
- Battery storage added with solar also qualifies for the 30% credit
- The 30% rate is available through 2032, then steps down — now is a great time to go solar
- File IRS Form 5695 to claim the credit with your annual tax return
For full details on the going-solar process, see our guide: How to Switch to Solar: A Step-by-Step Guide for Homeowners.
This article is for informational purposes only and does not constitute tax advice. Consult a qualified tax professional for advice specific to your situation.
Sources: IRS Form 5695 Instructions, IRS Publication 946, U.S. Department of Energy Office of Energy Efficiency & Renewable Energy, Inflation Reduction Act of 2022 (P.L. 117-169), SEIA Federal Solar Tax Credit Resources.