Updated for the 2026 federal tax credit repeal

What solar actually costs in your state — after the federal credit expired.

The 30% federal solar tax credit ended for homeowners on December 31, 2025. Most cost guides online haven't caught up. This one has — with current, state-by-state pricing, real remaining incentives, and honest payback math for all 50 states.

$2.00–$3.60 per watt by state
50 states covered
0% federal credit for cash/loan in 2026
National snapshot, 2026
National avg. installed cost$2.68/W
Cheapest state (avg)Arizona · $2.22/W
Most expensive state (avg)Massachusetts · $3.30/W
Fastest typical paybackHawaii · 6-8 yrs
Federal credit, cash/loan (2026)Expired 12/31/25
Lowest installed cost per watt

The 5 cheapest states to go solar in 2026

Installed cost per watt is driven mostly by labor rates, permitting complexity, and installer competition — not just sunshine.

Payback period

Where solar pays for itself the fastest

Fast payback comes from a mix of high electricity rates and strong remaining state incentives — not installed price alone.

See all 50 states
Advertisement

Have a solar question we haven't answered?

Send us a note — we're expanding this guide every month as incentive programs and pricing shift.

Contact us