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2026 has two rates. This handles both.
The IRS raised the business mileage rate mid-year in 2026 — 72.5¢ through June 30, then 76¢ from July 1 (Notice 2026-10, modified by Announcement 2026-11). Running the whole year at one rate gets the math wrong in both directions. This calculator applies the correct rate to each half and estimates what the deduction saves you in income tax and self-employment tax.
Every self-employed driver at tax time: 2026 is a split-rate year and most calculators apply one rate all year, which is wrong both directions. Gig drivers, realtors, and mobile service pros use it to turn a mileage log into an actual deduction figure.
Two rates: 72.5¢ per business mile from January 1 to June 30, and 76¢ per mile from July 1 to December 31. The IRS raised the rate mid-year (Announcement 2026-11) citing fuel prices — the first mid-year adjustment in years. Charitable miles stay at 14¢; medical/moving went to 23.5¢ in the second half.
For a self-employed driver in the 22% bracket, roughly 36¢ per deducted dollar: the deduction cuts income tax at 22% and self-employment tax at about 14.1% (15.3% applied to the 92.35% SE base). A 20,000-mile year deducts about $14,900 and saves around $5,400 in tax.
Yes — a contemporaneous mileage log with date, miles, and business purpose. Reconstructed logs are the first thing audits kill. Apps that auto-track trips satisfy this; a notebook works too. Also remember: parking and tolls are deductible separately, on top of the standard rate.