Solar Tax Credit 2026: Complete 30% Federal ITC Guide
Published 2026-01-10 · Updated 2026-07-07 · MySunROI Research Team
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The federal solar Investment Tax Credit (ITC) is the single largest incentive for US homeowners going solar in 2026. It covers 30% of qualified installation costs — including equipment, labor, and permitting — dollar-for-dollar against your federal income tax. This guide explains eligibility, savings math, and how to claim the credit on your return.
What is the 2026 solar tax credit (ITC)?
The ITC lets homeowners who purchase a solar system reduce federal taxes by 30% of the project cost. For a $20,000 installation, that is $6,000 in tax credit value. The credit applies to rooftop solar, ground-mount systems, and paired battery storage when requirements are met.
The ITC is not a rebate check — it offsets tax liability. If you owe $7,000 in federal tax and qualify for a $6,000 ITC, you pay $1,000. See our federal incentive guide for the full timeline through 2034.
How much can you save with the 30% credit?
Use our free solar calculator for personalized numbers. National averages for a 6 kW system:
- Gross install cost: ~$16,000–$21,000 before incentives
- 30% ITC value: ~$4,800–$6,300 off your tax bill
- Net cost after credit: ~$11,000–$15,000 effective price
State rebates (where available) stack on top. Check DSIRE for programs in your state, or browse Texas, California, or Florida cost pages.
Who qualifies for the residential solar ITC?
You generally qualify if you:
- Own the system — cash purchase or solar loan (not lease/PPA)
- Install at your US residence — primary or secondary home
- Have federal tax liability — to use the credit (carryforward allowed)
- Use new equipment — meets applicable electrical and fire codes
Rental properties and vacation homes have specific rules. Consult a CPA for your situation. If you are comparing ownership vs leasing, read our lease vs buy guide.
Do batteries and add-ons qualify?
Solar batteries paired with a new solar array typically qualify for the same 30% credit. Standalone batteries added after solar may qualify if they charge exclusively from solar. See solar battery cost guide for pricing.
- Roof work solely for solar may qualify if integral to the project
- Main panel upgrades sometimes qualify — get itemized invoices
- EV chargers generally do not qualify unless part of approved energy property
How to claim the solar tax credit
- Keep itemized contract showing equipment, labor, and permit costs
- Obtain a completed IRS Form 5695 from your installer or CPA
- File with your federal return for the year the system is placed in service
- Carry unused credit forward if tax liability is less than credit amount
Timing matters: the system must be placed in service (operational) in the tax year you claim. Partial-year installs should be documented with your tax professional.
ITC savings examples by state
30% credit on a typical 6 kW system (before local rebates):
- Texas — ~$5,100 credit on ~$17,000 gross install
- California — ~$6,000+ credit; also research NEM 3.0 export rules
- Florida — ~$5,400 credit with strong sun and net metering
- New York — stack ITC with NY-Sun incentives where available
After incentives, evaluate payback period and whether solar is worth it for your roof and usage.
Solar costs by state
Frequently Asked Questions
Is the 2026 solar tax credit 30%?
Yes — the residential Investment Tax Credit remains 30% of eligible costs for systems installed through 2032, then steps down in later years per federal law.
Is the solar tax credit refundable?
No. It is a non-refundable credit that reduces federal tax owed. Unused credit can typically carry forward to future tax years.
Do solar batteries qualify for the ITC?
Yes, when paired with solar or when standalone batteries charge exclusively from solar, subject to current IRS guidance.
Can renters claim the solar tax credit?
No. You must own the home and the solar system. Renters may explore community solar programs instead.
Does a solar lease qualify for ITC?
No. The installer/lessor claims incentives on leases and PPAs — not the homeowner.