Mileage Reimbursement Calculator
Enter your business miles and the rate per mile to work out the reimbursement or deduction. The rate starts at the IRS standard business rate for 2026 and you can change it.
How to use this mileage reimbursement calculator
- Enter the business miles you drove. Commuting from home to your regular workplace is generally not counted.
- Check the rate. The default is the IRS standard business rate announced for 2026, and you can enter your employer rate if it differs.
- Add parking and tolls if you want them in the total.
- Enter the number of trips to see the average per trip.
- Press Calculate. Use Copy result or Export CSV for your expense report.
How to calculate mileage reimbursement
Mileage reimbursement is the business miles times the rate per mile.
- Reimbursement = business miles x rate (cents) / 100
- Total = reimbursement + parking and tolls
- Average per trip = total / number of trips
Worked example
You drive 1,000 business miles. At the IRS 2026 standard business rate of 72.5 cents per mile the reimbursement is 1,000 x 72.5 / 100 = $725.00. If you also paid $20 in parking, the total is $745.00. Over 4 trips, the average is $186.25 per trip.
If your employer pays a lower flat rate, enter that rate to see what you will be paid. If you are claiming on a tax return, keep a log that shows the date, the places, the purpose and the miles of each trip. The rate covers the running cost of the vehicle, so you do not add gas or repairs on top of it.
Assumptions & limits
- The IRS announced 72.5 cents per mile for business use in 2026 in its December 2025 release. A mid-year change to the rate has been reported, so check irs.gov for the rate that applies to your dates of travel.
- The calculator uses a single rate for all miles. If rates changed during the period you are claiming, calculate each period on its own.
- Your employer may use a different rate, and some employers pay a fixed amount.
- Standard mileage rates cover the cost of operating the car, so you do not also claim gas, repairs or depreciation for the same miles. Parking and tolls can be added.
- This is an arithmetic tool and not tax advice. Ask a tax professional about your situation and keep a mileage log.
Frequently asked questions
How do I calculate mileage reimbursement?
Multiply the business miles by the rate per mile. 1,000 miles at 72.5 cents is $725.00.
What is the IRS mileage rate for 2026?
The IRS announced 72.5 cents per mile for business use for 2026. A mid-year change has been reported, so check irs.gov for the rate that applies on your travel dates.
Does commuting count as business mileage?
Generally not. Driving between home and a regular workplace is usually commuting. Ask a tax professional for your case.
Can I add parking and tolls?
Yes. Parking and tolls are generally claimed on top of the standard mileage rate.
Do I need a mileage log?
Keeping a log with the date, purpose and miles of each trip is the usual way to support a claim.
Can I use my own rate?
Yes. The rate field is editable, so you can enter an employer rate or a different figure.
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Last updated: November 2026