Employers often reimburse employees at the IRS rate, and self-employed people can deduct business mileage instead of actual car costs. The charity rate is set by law and hasn’t changed in decades.
How to use the Mileage Reimbursement Calculator
- Tax year
- Business miles
- Medical miles
- Charity miles
- Custom business rate per mile
- Custom medical rate per mile
Results update as you type, and every field accepts the units shown in its menu.
How it works
Choose the tax year (or custom rates) and enter the miles driven for each purpose.
Tips
- Tax figures here are estimates for planning – your actual tax depends on credits, deductions and local rules.
- Check the tax year and filing status before you rely on a result.
- Use gross (before-tax) figures unless a field asks for take-home pay.
- When in doubt, confirm with the tax authority’s own calculator or a tax professional.
Common mistakes to avoid
- Confusing marginal and effective tax rates.
- Adding sales tax to a price that already includes it.
- Forgetting payroll taxes (Social Security and Medicare) on wages.
Inputs explained
| Field | What to enter |
|---|---|
| Tax year | Choose one: 2026, 2025, 2024, 2023 … |
| Business miles | A number |
| Medical miles | A number |
| Charity miles | A number |
| Custom business rate per mile | Amount in your currency |
| Custom medical rate per mile | Amount in your currency |
What each result means
- Mileage deduction / reimbursement = [Business miles]×[Business rate per mile] + [Medical miles]×[Medical rate per mile] + [Charity miles]×0.14
- Business part = [Business miles]×[Business rate per mile]
Example values
How the main result changes when Business miles changes and everything else stays at the example values above:
| Business miles | Mileage deduction / reimbursement |
|---|---|
| 600 | 476.95 |
| 900 | 694.45 |
| 1,200 | 911.95 |
| 1,500 | 1,129.45 |
| 1,800 | 1,346.95 |
| 2,400 | 1,781.95 |
Formula
Reimbursement = business miles × business rate + medical miles × medical rate + charity miles × 14¢2026: business 72.5¢, medical/moving 20.5¢, charity 14¢ per mileWorked example
Inputs — Tax year: 2026; Business miles: 1,200; Medical miles: 150; Charity miles: 80; Custom business rate per mile: $0.6; Custom medical rate per mile: $0.2.
Results — Business rate per mile = $0.725; Medical rate per mile = $0.205; Mileage deduction / reimbursement = $911.95; Business part = $870.00.
Frequently asked questions
What is the 2026 IRS mileage rate?
72.5 cents per mile for business, 20.5 cents for medical and moving, 14 cents for charity.
Can employees deduct unreimbursed mileage?
Not on federal returns from 2018 onwards (except certain groups).
Do I need a mileage log?
Yes – record dates, miles, destinations and purpose.
What formula does the Mileage Reimbursement Calculator use?
Reimbursement = business miles × business rate + medical miles × medical rate + charity miles × 14¢.