Federal Solar Tax Credit 2026: The 30% ITC
The single largest financial incentive for residential solar in the United States is the federal Residential Clean Energy Credit. It returns 30 cents on every dollar spent on a qualifying solar installation through 2032, with no income cap and no maximum system size.
Who Qualifies
The Residential Clean Energy Credit is available to any taxpayer who installs a qualifying solar photovoltaic system at a primary or secondary residence in the United States. The system must be owned, not leased — power purchase agreements (PPAs) and solar leases are not eligible because the third party retains ownership.
There is no maximum dollar cap, no household income test, and no minimum or maximum system size. New construction qualifies as long as the system is placed in service in the relevant tax year.
How to Claim It
The credit is claimed using IRS Form 5695 (Residential Energy Credits), filed alongside your standard federal tax return for the year your system is placed in service. Most consumer tax software handles Form 5695 automatically once you indicate you installed solar.
Keep documentation: paid installer invoices itemized by component, equipment serial numbers, permit paperwork, and your utility's permission-to-operate letter. The IRS does not require these documents at filing, but they should be retained for at least three years in case of audit.
What Systems Are Eligible
Qualifying expenditures include solar panels, inverters, mounting hardware, wiring, monitoring equipment, batteries (capacity ≥3 kWh), permitting and inspection fees, sales tax on equipment, and labor costs for installation. Roof reinforcement specifically required to bear the panel array also qualifies.
Routine roof replacement does not qualify. Generator backup systems do not qualify. Costs that result in a cash rebate from the installer or utility must be subtracted from the credit basis before computing the 30%.
ITC Timeline & Phase-Down
The 30% rate is locked through tax year 2032. Beginning in 2033, the credit steps down to 26%, and further down to 22% in 2034. After 2034, the residential portion of the Investment Tax Credit is scheduled to expire entirely under current law.
Homeowners installing in 2026 capture the full 30% credit. Waiting carries no benefit and carries meaningful risk: legislative changes between now and 2034 could accelerate phase-down or alter eligibility rules.