Solar Payback Period Calculator (US)
Free US solar payback calculator for 2026. Net cost ÷ annual savings, payback math now the federal credit has ended, plus regional 7–14 year ranges.
Solar Panel ROI Calculator
Annual Savings
$1,728
Payback Period
10.4 years
25-Year Net Profit
$25,200
ℹ️ The US federal residential credit ended for installs after Dec 31, 2025 — enter your gross contract price (minus any state incentives).