The federal solar Investment Tax Credit — commonly called the solar ITC — is one of the most powerful financial incentives available to American homeowners. Under the Inflation Reduction Act, the credit was extended and expanded to 30% of total installation costs through 2032. For a typical $20,000 solar installation, that's a $6,000 direct reduction in your federal tax bill. Unlike a deduction that reduces your taxable income, this is a dollar-for-dollar credit — meaning $6,000 less you owe the IRS, not just $6,000 less in taxable income.

Key Facts About the 2026 Solar Tax Credit

• Credit Amount: 30%

  The credit covers 30% of the total cost of your solar installation, including panels, inverters, mounting hardware, wiring, and installation labor. Battery storage systems installed alongside solar also qualify for the 30% credit.

• Who Qualifies

  You must own your solar system (not lease it), install it on your primary or secondary residence in the United States, and have sufficient federal tax liability to claim the credit. The system must be new — you cannot claim the credit on a used system you purchase from a previous homeowner.

• Carryforward Provision

  If the credit amount exceeds your federal tax liability for the year you install solar, you don't lose the excess. You can carry forward the unused portion to future tax years. This is particularly useful for retired homeowners or those with lower taxable income.

• Schedule Matters

  The 30% rate applies to systems installed through 2032. It's scheduled to drop to 26% in 2033 and 22% in 2034 before expiring for residential installations. Installing in 2026 captures the full 30% — waiting several years risks missing out on the maximum credit.

The ITC covers more than just the panels themselves. The eligible costs include solar photovoltaic panels, inverters (string inverters, microinverters, or power optimizers), mounting systems and racking, wiring and electrical work directly related to the solar installation, energy storage devices (batteries) installed as part of the solar system, sales taxes on all eligible components, and installer labor. The 30% applies to the full system cost as quoted by your installer, which is why getting an all-inclusive quote matters.

Costs that are not included: roof repairs or replacement required before installation (though the solar portion of a solar-plus-roof project may still qualify), tree removal, and any work not directly part of the solar system. Keep your installer's detailed invoice and any financing documents — your tax preparer will need them when you file.

How to Claim the Solar Tax Credit

• Step 1: Install Your System

  The credit applies in the tax year your system is placed in service — meaning it's installed and operational. If installation is completed in December 2026, you claim the credit on your 2026 federal tax return filed in 2027.

• Step 2: Complete IRS Form 5695

  Form 5695 is the Residential Energy Credits form. Your solar installer will provide the total system cost, and you enter that figure into Part I of the form. The form calculates your credit automatically. Most tax software handles this automatically if you answer the solar-related questions correctly.

• Step 3: Apply the Credit to Your Tax Bill

  The credit amount from Form 5695 carries over to Schedule 3 of your Form 1040, which reduces your total federal tax liability. If you owe $8,000 in federal taxes and your solar credit is $6,000, you'll owe $2,000 with a $0 refund check for the credit — the credit offsets taxes owed, it doesn't generate a cash refund.

One important nuance: the solar ITC is non-refundable. If your total tax liability is zero, the credit provides no immediate benefit (though the carryforward means you can still use it in future years). Homeowners with moderate-to-high federal tax bills get the most direct value from the credit. For most working households, the 30% credit represents a significant and immediate reduction in the net cost of going solar.