Terms of use
Last updated: October 11, 2026
Estimates, not advice
RoofPayback provides free calculators and general information about residential solar in the United States. Results are estimates based on public data (NLR PVWatts, U.S. EIA) and the values you enter. They are not an engineering assessment, a quote, or financial, tax or legal advice. Get a site assessment from a licensed installer and check current incentives and utility rules before you buy.
No warranty
We work to keep data accurate and current but provide the site "as is", without warranties. To the extent permitted by law, we are not liable for decisions made using the site.
Content and data
Text, design and code belong to the site owner. Third-party data is credited to its source. You may quote our content with a link to the original page.
Advertising
The site may show ads served by Google, always labeled "Advertisement". Advertisers do not influence calculations or editorial content.
Changes
We may update these terms; the date above shows the latest version. Operator details are in the legal notice.