The Best Way to Track Mileage for Taxes: App vs Logbook vs Spreadsheet
At 72.5 cents a mile for 2026, business driving is a big deduction and a commonly botched one. There are three ways to keep a log: paper, spreadsheet, or an app that tracks the drive for you. Here is how they stack up and what the IRS actually requires.
At 72.5 cents a mile for 2026, business driving is one of the largest deductions the self-employed get, and one of the most commonly botched. The deduction is only as good as your log, and there are really three ways to keep one: a paper logbook, a spreadsheet, or an app that tracks the drive for you. They are not equal. Here is how they stack up, and what the IRS actually requires from whichever you pick.
What every method has to capture
Before comparing tools, know the target. For each business trip the IRS wants the date, the miles driven, where you went, and the business reason for the drive. It also wants the record kept contemporaneously, which is a fancy way of saying as you go, not reconstructed from memory in April. Any method that captures those four things, kept in real time, will hold up. We cover the details in our guide to mileage log requirements.
The paper logbook
A notebook in the glovebox is the classic. It is cheap, it never runs out of battery, and a log written at the time of each trip is exactly the contemporaneous record the rules ask for. The catch is human nature. You have to remember to write down every single trip, every time, all year. Miss a week here and there, as almost everyone does, and you are back to guessing, which is the one thing an auditor will not accept.
The spreadsheet
A spreadsheet is a step up because the math adds itself and the file cannot get lost in a car. But it has the same fatal flaw as the logbook: it only knows what you remember to type in. A spreadsheet built the night before you file, from credit card statements and memory, is the textbook example of a log that gets thrown out. If you will actually update it after every drive, it works. Most people do not.
The automatic app
The strongest log is the one you do not have to remember to keep. A phone app with GPS can detect a drive, record the date, the distance, and the route on its own, and then just ask you to confirm whether it was business and why. That captures every required field, in real time, with a route map most paper logs never have. The deduction stops depending on your discipline, which is the whole point.
Which deduction you are protecting
Whatever you track with, those miles feed the standard mileage rate, 72.5 cents each for business in 2026. The other option is deducting your actual car costs instead, and which one wins depends on your vehicle. Our guide to standard mileage vs actual expenses walks through the choice, but either way a solid mileage log is what makes the deduction real.
A mileage log that keeps itself
Let your phone log each drive automatically with the date, distance, and route, then just confirm the business ones. The record the IRS wants writes itself.
Start freeHow Vuuv helps
Vuuv's mileage tracking is built around the automatic approach. The Vuuv mobile app uses your phone's GPS to detect and record each drive, saving the date, the miles, and the route, then lets you tag the business purpose with a tap. There is nothing to reconstruct later, because the contemporaneous log already exists. If you are weighing it against a single-purpose tracker, our Vuuv vs MileIQ comparison shows what you get when the mileage lives in the same place as the rest of your books.
Frequently asked questions
What's the best way to track mileage for taxes?
Whichever method you'll actually keep up in real time. An automatic GPS app is the strongest because it records each drive's date, distance, and route on its own and just asks you to confirm the business ones, so the deduction doesn't depend on your memory or discipline.
Can I use a spreadsheet for mileage?
Yes, but only if you update it after every drive. A spreadsheet built the night before you file, from statements and memory, is the textbook example of a log that gets thrown out in an audit. The IRS wants a contemporaneous record, kept as you go.
Does the IRS accept app-based mileage logs?
Yes. The IRS cares about the content of the record, not the format. An app log that captures the date, miles, destination, and business purpose for each trip, kept in real time, satisfies the requirement, and the route map a GPS app adds is stronger than most paper logs.
What does a mileage log need to show?
For each business trip: the date, the miles driven, where you went, and the business reason for the drive. You also need your total miles for the year, since the deduction is based on the business share of your driving.
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This article is general information, not tax advice. Tax rules change and every situation is different. Confirm the details against current IRS guidance or talk to a qualified tax professional before you file.