How to Track Mileage for Uber/Lyft Without Losing Your Deduction at Tax Time

Mileage is usually the single largest tax deduction a rideshare driver has. It's also the deduction most likely to get shrunk or thrown out entirely, not because drivers aren't putting in the miles, but because the way they're recording them doesn't hold up. This is how to track mileage the way the IRS actually wants it tracked, why relying on the Uber or Lyft app alone leaves money on the table, and the handful of mistakes that show up over and over.

TL;DR

The IRS requires a contemporaneous mileage log — records made at or near the time of each trip — showing the date, miles driven, and business purpose. A log reconstructed from memory months later doesn't meet that standard, even if the miles were real. The Uber and Lyft apps typically only record miles with a passenger, which usually undercounts your real business mileage, since the driving you do between drop-off and the next pickup while logged in and available generally counts too. Track every day, either with a GPS mileage app or a simple spreadsheet log, and reconcile against your bank and gas records periodically. Sheetfolk's Rideshare Driver Tax & Mileage Tracker has a daily mileage log built in, plus the deduction and income tabs that tie the mileage number to what you actually kept.

What Does the IRS Actually Require for a Mileage Log?

A contemporaneous record — meaning made at or close to the time of the trip, not reconstructed later — showing the date, total miles, and business purpose of each trip. "Contemporaneous" is the word that matters here. It doesn't mean you need a separate entry for every single minute of driving, but it does mean the record needs to be built as you go, not assembled from memory in April when you're trying to hit a filing deadline.

A log built in April, even one that's honest and reasonably accurate, is inherently weaker evidence than one built the same week the miles were driven. If your return is ever questioned, an examiner is going to weight a same-day log far more heavily than a reconstruction, however well-intentioned.

Does the Uber or Lyft App Track My Mileage For Me?

Partially — and this is the single biggest source of missed deductions for rideshare drivers. The trip history inside the Uber and Lyft driver apps generally shows miles while a passenger is in the car. What it typically doesn't capture well: the miles you drive between dropping one passenger off and picking up the next, and the miles you drive while logged into the app and available for a ride but haven't been matched yet.

Those "deadhead" miles are commonly considered business miles for tax purposes, since you're actively working and available for a fare, not driving for personal reasons. If you only pull your total mileage deduction from what the app's trip summary shows you, you're very likely deducting less than you're entitled to.

How Much Does This Actually Cost You?

Here's a rough sense of the gap. Say the app's trip history shows 12,000 miles with a passenger for the year. If you weren't separately logging the deadhead miles between drop-offs and the wait time while online, your real total business mileage for the year — including the driving you did while working but not shown in the app's trip log — could easily run 3,000 to 4,000 miles higher.

At the current IRS rate (72.5¢/mile for 2026 — confirm on IRS.gov, since it's revised annually), 3,500 unclaimed miles is a meaningfully sized deduction left on the table — not because the miles weren't real, but because they weren't logged anywhere. For the full breakdown of how the mileage deduction fits alongside every other rideshare deduction, see our Uber and Lyft tax deductions checklist.

What's the Best Way to Actually Track Mileage?

Pick one method and use it every day you drive — a GPS mileage app or a manual log, both work, as long as it's contemporaneous.

GPS mileage apps track automatically once you turn them on, which removes the "did I forget to log it" problem. The tradeoff is that most treat all driving as either fully business or fully personal by default, so you still need to classify trips (or set them to auto-classify while a specific app is running) and periodically check they're not missing sessions.

A manual spreadsheet log takes more discipline but gives you full control and is easy to keep alongside your income tracking. At minimum, track:

Update it the same day you drive, not at the end of the week. A five-minute habit after each shift beats a two-hour reconstruction project every time you file.

Common Mileage Tracking Mistakes Rideshare Drivers Make

These are the mistakes that show up most often, roughly in order of how much they cost:

1. Relying only on the app's trip history. As covered above, this typically misses deadhead and wait-time miles, understating your real deduction.
2. Reconstructing the log months later. Doesn't meet the contemporaneous standard, and honest reconstructions still tend to underestimate real mileage since memory fades fast.
3. Not separating personal and business trips. If you also use the car for errands, groceries, or picking up your kids, those miles don't count, and mixing them into your log undermines the log's credibility.
4. Losing the log with no backup. A single spreadsheet on a phone that gets lost or a notebook that gets thrown out means starting over with nothing. Keep a backup, whether that's cloud storage or a synced app.
5. Not reconciling against other records. Periodically checking your logged miles against gas fill-up frequency or your car's odometer readings catches gaps before they compound over months.

How Does Mileage Fit Into the Rest of Your Tax Picture?

Mileage is one input into a bigger number — your net profit — and net profit is what a quarterly tax set-aside should actually be calculated against, not your gross fares. Once you've got a solid mileage log feeding an accurate vehicle deduction, the next step is making sure that deduction, along with your non-mileage expenses, flows into a clean picture of what you actually kept per platform. For that mechanic, see our quarterly tax estimator guide, and for the full list of what else is deductible beyond mileage, see our Uber and Lyft deductions checklist.

If building and maintaining a daily log habit is the part most likely to slip, a recurring reminder helps more than willpower does — TaskDrain can handle the "log today's miles" nudge so it happens the same day, every day you drive.

Frequently Asked Questions

Do I need a separate app if Uber and Lyft already show trip mileage? Not necessarily a separate app, but you do need something capturing the miles the apps don't show well — deadhead and wait-time driving. A supplementary log or a GPS tracker running alongside the driver apps covers that gap.

What if I forgot to log mileage for a few weeks? Reconstruct what you can from bank records, gas receipts, and the app's own trip history, then go back to contemporaneous logging immediately. A partial reconstruction is better than nothing, but it's weaker evidence than a log built in real time, so treat it as a one-time catch-up, not a habit.

Does the standard mileage rate cover gas and maintenance too? Yes — the standard mileage rate is designed to bundle gas, maintenance, insurance, and depreciation into one per-mile figure, which is part of why it's simpler than the actual expense method. See our deductions checklist for how the two methods compare.

The Bottom Line

The IRS doesn't require a perfect log, it requires a contemporaneous one — recorded as you go, not rebuilt from memory. The single biggest lever most rideshare drivers have is simply not relying on the app's trip history alone, since it tends to miss real business miles you're entitled to claim. Build the daily habit, back it up, and reconcile it periodically, and mileage stops being the deduction you worry about losing.

Want a daily mileage log built alongside your income and deduction tracking, not a separate spreadsheet you have to reconcile by hand? Sheetfolk's Rideshare Driver Tax & Mileage Tracker is $17 and ties your mileage log directly to your per-platform net and quarterly tax set-aside.

Disclaimer: This post is for informational purposes only and is not tax, legal, or financial advice. Mileage substantiation requirements, deduction methods, and the standard mileage rate change year to year and depend on your specific situation. Confirm current requirements and figures with a licensed tax professional or IRS.gov before relying on any figure in this article.

See Also

• Uber and Lyft Tax Deductions: The Full Checklist for 2026
• The Free Rideshare Tax Spreadsheet Templates We Tested
• Freelancer and Maker Quarterly Tax Estimator in Google Sheets
• Side Hustle Income Tracker Spreadsheet