Illinois EV Tax Credit & Rebate Savings Calculator

Estimate your total savings from the Illinois Electric Vehicle Rebate Program, the federal Clean Vehicle Tax Credit (IRC §30D), and ongoing fuel and maintenance cost reductions.

Used to calculate Illinois rebate ($4,000 base + $100/kWh above 40 kWh, capped at $4,000 total for used; $4,000 for new)
Illinois income-based bonus rebate: +$2,000 if income ≤ 400% Federal Poverty Level (≈$60,240 for single filer, 2024)
Federal credit is non-refundable (new EV) or partially refundable (used EV). Enter your expected tax liability.
Illinois average ≈ $0.13/kWh (ComEd/Ameren, 2024)
Typical range: 3.0–4.5 miles/kWh

Formulas Used

Illinois Rebate (PA 102-0662):
New EV Rebate = $4,000
Used EV Rebate = $4,000 (battery ≥ 40 kWh) or $1,500 (battery < 40 kWh)
Income Bonus = $2,000 if Household Income ≤ 400% × Federal Poverty Level
400% FPL = ($15,060 + $5,380 × (household_size − 1)) × 4

Federal Tax Credit:
New EV (§30D): Credit = min($7,500, federal_tax_liability) — subject to MSRP caps ($55,000 cars; $80,000 trucks)
Used EV (§25E): Credit = min(purchase_price × 30%, $4,000, federal_tax_liability) — subject to $25,000 MSRP cap

Annual Fuel Savings:
Gas Cost = (annual_miles ÷ mpg) × gas_price_per_gallon
Electricity Cost = (annual_miles ÷ ev_efficiency_miles_per_kwh) × electricity_rate_per_kwh
Annual Fuel Savings = Gas Cost − Electricity Cost

Annual Maintenance Savings:
Annual Maintenance Savings = annual_miles × $0.061/mile
(ICE avg ≈ $0.101/mile; EV avg ≈ $0.040/mile; delta = $0.061/mile — Consumer Reports 2023)

Grand Total Savings:
Total = Illinois Rebate + Federal Credit + (Annual Fuel Savings × years) + (Annual Maintenance Savings × years)
Effective Net Cost = Purchase Price − Total Savings

Assumptions & References

  • Illinois EV Rebate Program: Established under Public Act 102-0662 (Illinois Electric Vehicle Act). Rebates are issued by the Illinois Environmental Protection Agency (IEPA). Program funding is limited and subject to availability.
  • Federal Clean Vehicle Credit (§30D): Up to $7,500 for new EVs meeting battery sourcing and assembly requirements under the Inflation Reduction Act (IRA, 2022). Non-refundable; limited to federal income tax liability. MSRP caps: $55,000 (cars/SUVs), $80,000 (trucks/vans). Income limits apply (AGI ≤ $150,000 single / $300,000 joint for new EV).
  • Federal Used Clean Vehicle Credit (§25E): 30% of sale price, max $4,000, for EVs ≥2 model years old priced ≤$25,000. AGI limits: ≤$75,000 single / $150,000 joint.
  • Federal Poverty Level (FPL): 2024 HHS guidelines for 48 contiguous states. 400% FPL threshold used for Illinois income bonus eligibility.
  • Electricity rate: Illinois average residential rate ≈ $0.13/kWh (U.S. EIA, 2024).
  • Maintenance savings: $0.061/mile delta based on Consumer Reports 2023 study comparing EV vs. ICE ownership costs.
  • This calculator provides estimates only. Actual savings depend on vehicle eligibility, income verification, tax filing status, utility rates, and program funding availability. Consult a tax professional and the IEPA for official guidance.
  • References: Illinois EPA EV Rebate | IRS §30D | IRS §25E

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