Calculator
Home Energy Audit ROI Calculator
Real numbers for a real audit. We use 2026 utility costs, your home's leak profile, and what your state will still pay for now that the federal 25C credit is gone.
Heads up. The federal 25C $150 home energy audit tax credit ended 12/31/2025 under the OBBBA budget reconciliation. State and utility rebates are now the only post-purchase cash back available. We've baked that into the math below.
Your home
The math
Audit cost
$450
State rebate: $0 via utility rebate (varies)
Annual savings
$726
28% of bill
Payback
5.0 yr
Net upfront: $3,600
Last updated: April 2026. Estimator uses national averages from EIA RECS 2024, DOE Home Energy Score pricing, and current state rebate program rosters. Actual savings depend on home-specific blower-door results, utility rate structures, and contractor quality. Not engineering advice. Verify with a BPI- or RESNET-certified auditor.
Track rebate program changes
Quarterly updates when state rebate caps shift or new utility programs launch.