Calculator
Solar Tax Credit Eligibility Checker
Accuracy note: The arithmetic on this page is deterministic from your inputs. Solar production, code, utility, incentive, and savings outputs are estimates unless you supply exact equipment specs, tariffs, shade data, and local requirements.
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How this is calculated
Under current IRS OBBB FAQ guidance, section 25D residential clean energy credit is not allowed for expenditures made after Dec. 31, 2025. If eligible before that date, estimated credit = eligible personal-use cost × applicable credit percentage, limited here by entered tax liability.