Commercial Solar Calculator
Estimate solar ROI for your business — sized for commercial electric bills of $500/month and up.
Commercial Solar and the Section 48E Tax Credit
Unlike the residential credit, the commercial solar Investment Tax Credit under Section 48E remains active through 2027 for eligible projects. This calculator models a 30% federal credit against your gross commercial system cost by default — significantly changing the payback math compared to a residential owner-owned system, which currently receives a 0% federal credit.
Commercial projects may also be eligible for accelerated depreciation (MACRS) on top of the tax credit, which further improves ROI but is not included in this estimate. Eligibility for Section 48E and MACRS depends on your business structure, project size, and other factors — confirm eligibility with a qualified tax professional before proceeding.
Results here are planning estimates only. Get a written proposal from a licensed commercial solar installer before making a purchase decision.