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By the free-solarpanels.com editorial team Published August 19, 2026 Last reviewed August 22, 2026

Reviewed for accuracy on August 22, 2026

Free Solar Estimate Tool

Solar Savings Calculator: Estimate Your Solar Panels Cost

Use this free solar calculator to estimate your potential savings with solar panels for home, home solar installation costs, available solar incentives, and payback period. These are rough estimates for affordable solar panels based on average data. For accurate solar quotes and best solar deals, compare quotes from vetted solar panel installation companies.

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Electric rates and incentives vary by state

$150
$

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$50$1,000

Panels may require roof repairs before installation

This affects which incentives apply and whether you have an upfront cost.

Estimated Savings Breakdown

Recommended System Size
4 kW
Estimated System Cost
$12,000
Net Cost After Incentives
$12,000

25-Year Savings

$26,250

Payback Period

~8 years

Important: These are estimates based on average conditions. For accurate quotes tailored to your roof, local utility rates, and available incentives, get matched with installers in your area.

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Estimates reflect federal tax law as of August 2026. The 30% Residential Clean Energy Credit (Section 25D) expired December 31, 2025 for homeowner-owned systems, including systems bought with a solar loan. The Section 48E credit for leases and PPAs applies to systems placed in service by December 31, 2027.