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IRS mileage rate 2026

By Isaac Farris·Updated August 7, 2026·6 minute read

The IRS changed the business mileage rate partway through 2026, which catches a lot of self employed people out at tax time. There are two rates this year and you have to apply both.

The 2026 rates

Split your log at 30 June and apply each rate to the miles driven in that half. If you use one rate for the whole year you will either underclaim or overclaim.

What that is actually worth

The numbers are larger than most people expect once you add up a year. At the second half rate of 76 cents, 10,000 business miles is a deduction of 7,600 dollars. For anyone driving between job sites daily, this is frequently the single largest deduction on the return, and it is the one most often left partly unclaimed because the log is incomplete.

What counts as a business mile

The rule that trips people up is commuting. Driving from home to your regular place of work is never deductible, no matter how far it is. What does count:

If you work from home and your home is your principal place of business, the picture changes: trips from home to a client then become business miles rather than commuting. That is worth discussing with an accountant, because it can substantially increase what you can claim.

The rate is not the hard part

Knowing the rate takes thirty seconds. Having a log that survives scrutiny is the actual work, and it is where deductions get lost. The IRS requires a record made at or near the time of the trip, with the date, where you went, why, and the distance. A log reconstructed in April from memory and calendar entries is exactly what auditors are trained to look for.

There is a full explanation of what the log has to contain in IRS mileage log requirements.

Keep the odometer readings too

People forget this one. IRS Publication 463 asks for your vehicle's odometer reading at the start and end of the tax year, and again whenever you start using a different vehicle for business. It takes ten seconds on 1 January and it supports every mile you claim.

My honest advice

Whatever you use to track this, the only thing that matters is that you record trips the day they happen. Paper works. A spreadsheet works. What does not work is intending to catch up at the weekend, because nobody does. That is the reason automatic tracking exists, and it is why I built one.

Sources

This is general information, not tax advice. Rates and rules change and your situation may differ. Check with an accountant before filing.

Run a business from your vehicle?

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