Mileage deduction calculator
Mileage calculator: miles × the IRS rate for their date
Enter how many business miles you drove and when. The calculator multiplies each entry by the IRS standard mileage rate in force on that date — 72.5¢ a mile for January–June 2026, 76¢ for July–December — and shows every line of the arithmetic.
Rates: IRS standard mileage rates. Estimate for planning, not tax advice.
How the math works
The IRS publishes a standard mileage rate — cents per business mile — that stands in for the cost of running the car. The deduction for a period is simply business miles × that period's rate. When the IRS changes the rate during a year, as it did in 2026, the miles from before and after the change are priced separately and the two results are added. Averaging the two rates gives a number no IRS page states, and it is wrong for any driver whose miles are not split evenly across the year.
Enter one row per stretch of driving — a month, a quarter, or a whole half-year. A row whose date falls outside the published rates shows a dash instead of a guess.
The number is only as good as the log
A calculator multiplies the miles you give it. The harder part is having the miles at all: platforms record only part of the driving (see what each one counts), and a year rebuilt from memory is the weakest record there is — the IRS asks for a record made at or near the time of each drive.
CatchMile does the same arithmetic on every drive as it happens: it records each drive in the background, you swipe it Work, Personal or Commute, and each work drive is valued at the rate for its own date.
What your platform counts — and doesn't
- DoorDashDoorDash emails one mileage estimate a year, for on-delivery miles only.
- UberUber's tax summary counts online miles in three stages while the Driver app is on.
- LyftLyft's Annual Summary lists online miles, and Lyft itself says offline miles are yours to track.
- Spark DriverWalmart says it does not give Spark drivers a mileage summary (Colorado aside).
- Amazon FlexAmazon Flex shows estimated mileage per offer, not a yearly log, and does not reimburse miles.
- GrubhubGrubhub support says it has no mileage information to give drivers.
Skip the spreadsheet. Every drive logs itself.
Set it up once — every drive logs itself. Free for your first 40 drives. iPhone and Android.
Mileage calculator — questions
How is a mileage deduction calculated?
Business miles × the IRS standard mileage rate in force when those miles were driven. In 2026 that is 72.5¢ a mile for January–June and 76¢ a mile for July–December, so miles from each half are multiplied separately and then added.
Why does the calculator ask for a date?
Because the rate depends on when you drove. A year with a mid-year change — 2026 is one — cannot be priced with a single number without being wrong for part of the miles.
Can I use this for gas and car costs?
The standard mileage rate is meant to replace deducting gas, maintenance and depreciation separately. If you use actual expenses instead, this calculator does not apply. Business parking and tolls are handled separately under IRS Publication 463.
Does the result go on my tax return?
It is an estimate for planning, not tax advice. What you can deduct depends on which miles were business miles and on the records you kept — the IRS asks for a record made at or near the time of each drive.
What counts as a business mile for a gig driver?
It depends on your situation, and a tax professional can say for sure. Each platform records only part of the driving — see what DoorDash, Uber, Lyft and others count in their own mileage records.
