Mileage Reimbursement Calculator (IRS)
Calculate US mileage reimbursement or deduction using the right IRS category, tax year, and distance unit.
Mileage Reimbursement Calculator (IRS)
Calculate US mileage reimbursement or deduction using the right IRS category, tax year, and distance unit.
Country
Tax year
Purpose
Vehicle
Distance
Unit
Estimated amount
$56.00
Tier breakdown
Business rate
100.00 mi × $0.56/mi = $56.00
Source: IRS 2021 standard mileage rates
Short answer
Use this page when you need a fast IRS-based mileage reimbursement estimate for 2021. It covers business, self-employed business, medical, moving, and charitable mileage so you can choose the right category before multiplying miles by the rate.
At a glance
- The 2021 IRS business rate is 56.0 cents per mi.
- The 2021 medical and moving rate is 16.0 cents per mi, and both categories use the same published IRS amount.
- The 2021 charitable rate remains 14.0 cents per mi.
Current 2021 IRS mileage categories
Business and self-employed business
56.0 cents per mi for ordinary business travel. This is the rate most employers benchmark when they reimburse employees for using a personal car on work trips.
Medical and moving
16.0 cents per mi for qualified medical travel and 16.0 cents per mi for eligible active-duty moving travel. The calculator keeps this separate because the IRS rate is much lower than the business category. See our medical mileage guide for details on the 7.5% AGI floor.
Charitable
14.0 cents per mi for mileage tied to qualified charitable service. This rate is set by statute and has not changed since 1998. See our charitable mileage article for why.
Official references
Use the year page when you want the published rate context before running the calculator.
Primary IRS guidance covering the standard mileage method, car expenses, and substantiation rules.
Download a spreadsheet or Sheets template if you need a monthly claim workflow after estimating the amount.
Common questions
Is this page for reimbursement or deduction estimates?
Both. The IRS mileage categories are the same rate inputs, but the workflow differs. Employers usually use the business category for reimbursement planning, while self-employed taxpayers use the same business rate for deduction estimates.
Does this calculator use the latest IRS rate for 2021?
Yes. The default year uses the 2021 IRS rates stored in the rate catalog, and the result block links back to the underlying IRS source used for the estimate.
Are gas, maintenance, and insurance added separately?
Not in the standard mileage method. The IRS mileage rate is meant to stand in for the ordinary costs of operating the vehicle. Parking and tolls can still be tracked separately when the underlying rule allows them.
Which trips should not be entered here?
Do not enter ordinary commuting. This page is for business, qualified medical, charitable, or eligible moving mileage only. If the trip is not in one of those buckets, the estimate will not match the IRS rule you actually need.
What should I do after I get the estimate?
Keep the trip records, confirm the rate year and category, and move into a mileage log or reimbursement form workflow if the estimate is going to support payroll, expense approval, or tax records.
Related links
Use these links to continue through the official rate and template workflow.