Business Mileage Calculator
Estimate your deductible business miles or reimbursement using IRS standard mileage rates. Log trips, separate business vs. commuting miles, and get instant totals.
Business mileage & reimbursement estimator
Rates are for business use of a car, van, pickup or panel truck. 2022 had mid‑year change; this tool uses the higher rate by default.
Override this if your employer uses a different reimbursement rate.
Add a trip
Only business miles are deductible or reimbursable under IRS standard mileage rules.
Mileage log
| Date | Purpose / destination | Start odo | End odo | Miles | Type | Notes | Remove |
|---|---|---|---|---|---|---|---|
| No trips added yet. Enter details above and click “Add trip to log”. | |||||||
Tip: Keep this log with your tax records. The IRS expects date, destination, business purpose, and miles for each trip.
How the business mileage calculation works
This calculator follows the IRS standard mileage method for business use of a personal vehicle. Instead of tracking every gas receipt and repair, you multiply your qualified business miles by a fixed rate per mile.
Business mileage deduction = Business miles × IRS standard
mileage rateExample: If you drove 5,000 business miles in a year and the rate is $0.67 per mile:
5,000 × 0.67 = $3,350 potential deduction.
Business vs. commuting vs. personal miles
Not every mile you drive is deductible. The IRS and most employers distinguish between three categories:
- Business miles – trips you make for work, such as visiting clients, driving between offices, going to a temporary work location, or picking up supplies.
- Commuting miles – the distance from your home to your regular workplace and back. These miles are not deductible.
- Personal miles – errands, family trips, vacations, and other non‑business driving.
Only the business miles your log tracks are multiplied by the rate to estimate your deduction or reimbursement.
Step‑by‑step: using this business mileage calculator
- Select the tax year. Choose the year you are claiming mileage for. The calculator loads the IRS business mileage rate for that year. You can override it with a custom rate if your employer uses a different reimbursement policy.
- Enter each trip. For every drive, record the date, purpose, start and end odometer readings, and trip type (business, commuting, or personal). The miles are calculated automatically.
-
Review your totals. The summary panel shows:
- Total business miles (eligible for deduction or reimbursement)
- Total commuting + personal miles (not deductible)
- Estimated deduction or reimbursement (business miles × rate)
- Export your log. Use the “Export CSV” button to download a spreadsheet‑friendly file you can store with your tax documents or submit to your employer.
IRS standard mileage rates (recent years)
The IRS updates the standard mileage rate almost every year, and occasionally mid‑year. The table below shows typical business rates (rounded) for recent years. Always confirm the latest official rate on the IRS website.
| Year | Business use rate (per mile) | Notes |
|---|---|---|
| 2025 | $0.69 | Illustrative; check IRS Notice for official rate. |
| 2024 | $0.67 | Business use of car, van, pickup or panel truck. |
| 2023 | $0.655 | Single annual rate. |
| 2022 | $0.585 / $0.625 | Mid‑year increase; this tool uses the higher rate by default. |
Disclaimer: Rates shown are for educational purposes only. Always verify current rates directly from the IRS or your tax authority.
Standard mileage vs. actual expense method
There are two main ways to calculate the cost of using your car for business:
- Standard mileage method – multiply business miles by the IRS rate. Simple, fast, and requires only a mileage log.
- Actual expense method – track all vehicle costs (gas, maintenance, insurance, depreciation, etc.) and multiply by the percentage of business use.
This calculator focuses on the standard mileage method, which is what most small business owners, freelancers, and employees use because it is easier to maintain and audit.
Record‑keeping tips for business mileage
- Log trips as you go, not months later.
- Include date, origin, destination, business purpose, and miles.
- Keep your odometer reading at the start and end of each year.
- Retain your mileage log and any supporting documentation for at least as long as you keep your tax returns.
Important: This tool is for planning and educational purposes and does not provide tax, legal, or accounting advice. For personalized guidance, consult a qualified tax professional or accountant.