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Solar Panel ROI Calculator (2026 Rebates)

Payback period, 25-year savings, and ROI for solar installation.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

The 2026 federal solar tax credit

The Inflation Reduction Act extended the 30% Investment Tax Credit (ITC) through 2032. On a $25,000 system, this saves $7,500 in federal taxes, bringing your net cost to $17,500.

Average payback periods in 2026

  • California: 5–7 years
  • Texas: 8–11 years
  • Northeast: 7–10 years
  • Southeast: 9–13 years
⚡ CalcWolf Insight

Solar installations hit 25GW in 2025 in the US — a record. Panel costs have dropped 89% since 2010. The average US solar installation now produces a 15–20% ROI over 25 years.

Frequently asked questions
Is solar worth it in 2026?
For homeowners planning to stay 7+ years with electric bills over $100/month, solar is almost always financially positive with the 30% federal credit.
How long do solar panels last?
Solar panels are warranted for 25-30 years but typically produce power for 30-40 years with gradual degradation of about 0.5% per year. After 25 years, panels still produce approximately 87% of their original output.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →

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