Charging Station Rebate Savings Calculator
Estimate your net out-of-pocket cost for installing an EV charging station after applying the federal tax credit, state rebates, and utility incentives.
Formulas Used
1. Total Project Cost
Total Cost = Equipment Cost + Installation Cost
2. Gross Federal Tax Credit
Gross Federal Credit = Total Cost × (Federal Credit Rate / 100)
3. Capped Federal Credit
Capped Federal Credit = MIN(Gross Federal Credit, Federal Credit Cap)
4. Usable Federal Credit (non-refundable — limited by tax owed)
Usable Federal Credit = MIN(Capped Federal Credit, Tax Liability)
5. Total Savings
Total Savings = Usable Federal Credit + State Rebate + Utility Rebate + Other Incentives
6. Net Out-of-Pocket Cost
Net Cost = MAX(0, Total Cost − Total Savings)
7. Effective Savings Rate
Savings Rate (%) = (Total Savings / Total Cost) × 100
Assumptions & References
- The federal Alternative Fuel Vehicle Refueling Property Credit (IRS Form 8911) equals 30% of qualified costs for residential installations, capped at $1,000 per unit (Inflation Reduction Act, 26 U.S.C. § 30C).
- For commercial/business installations the cap is $100,000 per item of property. Change the cap field accordingly.
- The federal credit is non-refundable: it can reduce your tax bill to $0 but will not generate a refund. Unused credit cannot be carried forward for residential filers.
- State rebates vary widely; check your state energy office or the AFDC State Laws & Incentives database.
- Utility rebates are offered by many electric utilities; check your utility's EV program page or PlugShare.
- State and utility rebates may be considered taxable income; consult a tax professional.
- Installation costs (electrician, panel upgrade, conduit, permits) are included in the federal credit calculation per IRS guidance.
- This calculator provides estimates only and does not constitute tax or financial advice.