QUICK ANSWER
How much is 100 miles reimbursed in 2026?
$76.00 for qualifying business miles driven July 1 through December 31, 2026, using the 76¢ per mile IRS optional business rate.
100 × $0.76 = $76.00
First half of 2026
For business miles driven January 1 through June 30, 2026, the IRS optional rate is 72.5¢ per mile. At that rate, 100 miles equals $72.50.
Why the trip date matters
The 2026 business rate changed midyear, so the same mileage produces a different estimate depending on the date driven. Employer policies can also use a custom rate.
Official rates are published by the IRS.