Mileage deduction calculator
Business miles times the IRS standard mileage rate. For 2026 the rate changed mid-year, so put your miles in each half.
About the mileage deduction
General information, not tax advice. Ask your tax preparer what fits you.
What are the IRS mileage rates?
For business driving: 70¢ a mile in 2025; 72.5¢ a mile from January 1 to June 30, 2026; and 76¢ a mile from July 1, 2026, after the IRS raised it mid-year. The rate covers gas, wear and insurance, so you don't also deduct those for the same car.
What records do I need?
A log made at the time: the date, where you went, why it was for business, and the miles. A phone note works, and so does the mileage log in BuckLoad, which works out the deduction for you.
Standard rate or actual costs?
You can usually deduct either the standard rate or your actual car costs (gas, repairs, insurance, depreciation) times the business share of your driving. The standard rate is simpler. There are rules about switching between them, so check with your tax preparer.