Example: a filled-in mileage log
This is what a finished log looks like for a small IT consultant in 2026. Notice the two rates: trips through June 30 use 72.5¢ a mile, trips from July 1 use 76¢. Press Load example log above to open it in the generator.
| Date | From | To | Business purpose | Miles (mi) | Deduction | Parking & tolls |
|---|
| 03/02/2026 | Home office | Acme Dental, Round Rock | Quarterly IT maintenance for Acme Dental | 28.4 | $20.59 | |
| 03/02/2026 | Acme Dental, Round Rock | Home office | Return from Acme Dental visit | 28.4 | $20.59 | |
| 04/15/2026 | Home office | Office Depot, Austin | Printer supplies for the Lakeside project | 7.5 | $5.44 | |
| 07/08/2026 | Home office | Riverside Bank, San Marcos | Proposal meeting with Riverside Bank | 35.2 | $26.75 | $12.00 |
| 07/08/2026 | Riverside Bank, San Marcos | Home office | Return from Riverside Bank meeting | 35.4 | $26.90 | |
| 09/21/2026 | Home office | Austin Convention Center | Booth setup, Small Business Expo | 14.2 | $10.79 | $25.00 |
| Total | 149.1 | $111.07 | $37.00 |
Result: 149.1 business miles, a $111.07 mileage deduction, plus $37.00 of business parking and tolls, which are deductible on top of the standard rate — $148.07 in total.
What the IRS requires in a mileage log
IRS Publication 463 asks for “adequate records” of each business use of your car. In plain English, every trip needs:
- The date of the trip.
- Where you went — the destination, and ideally where you started.
- The business purpose — who you met or what you did, specific enough to make sense to someone else later.
- The miles driven for that trip, from odometer readings or a reliable route distance.
For the year you also need your total miles, which is why the generator asks for the odometer on January 1 and December 31: business miles divided by total miles is your business-use percentage. Records should be made at or near the time of the trip; a log rebuilt from memory in April carries much less weight. Keep the log with your return for at least three years.
A few rules decide whether the standard rate applies at all: you must choose it in the first year the car is used for business, you can’t use it for five or more cars at the same time, and commuting between home and a regular workplace is never business mileage. Business parking and tolls are deductible in addition to the rate.
Common mileage log mistakes
- Logging the commute. Home to your regular office is personal, even if you take calls on the way.
- Vague purposes. “Meeting” or “errand” proves little. “Proposal meeting with Riverside Bank” does.
- One rate for all of 2026. Miles before July 1 use 72.5¢, miles after use 76¢.
- No year-start and year-end odometer reading. Without them you can’t show the business-use share.
- Round numbers everywhere. Ten trips of exactly 20 miles look reconstructed. Odometer readings don’t.
- Forgetting the extras. Parking and tolls for business trips are deductible on top of the mileage rate, so keep those receipts.
- Mixing cars. Keep one log per vehicle.
Excel, PDF or CSV?
Excel is the working copy: miles, rate and totals are live formulas, so you can keep adding trips. PDF is the clean record to file with your taxes or send to an accountant. CSV imports into Google Sheets, Numbers or bookkeeping software. The blank templates are the same layout for people who keep a log in the glovebox.
Want the whole thing automatic? The ReceGuard iPhone app records trips and keeps them next to your receipts — see what an IRS-ready mileage log needs.
Mileage log FAQ
Is this mileage log template free?
Yes. The generator, the Excel, PDF and CSV downloads and the blank templates are free, with no account and no watermark.
Does it use the 2026 IRS mileage rate change?
Yes. The IRS business rate is 72.5 cents per mile from January 1 to June 30, 2026 and 76 cents from July 1, 2026. Each trip uses the rate for its date, and the totals show both periods.
Does the Excel mileage log have formulas?
Yes. Miles are calculated from the odometer columns, the rate follows the trip date, and the deduction and totals are SUM formulas, so the file keeps working in Excel, Google Sheets and Numbers as you add trips.
What does the IRS require in a mileage log?
For each business trip: the date, the destination, the business purpose and the miles driven. For the year: your total miles, so the business-use share can be worked out. Records should be kept at or near the time of the trip.
Can I use it for mileage reimbursement?
Yes. Choose a custom rate and enter your employer’s or client’s rate per mile; the log then shows the reimbursement for each trip and in total.
Are my trips saved or uploaded?
Your trips are saved in this browser on this device so you can come back and continue. They are never uploaded. Use “Clear log” to delete them.
How do I log a round trip?
Add the outbound trip, then press the ↩ button on that row. It adds the return trip with the start and destination swapped and the odometer carried over.
Can I print a blank mileage log?
Yes. “Blank printable PDF” gives you a ready-to-print log with columns for date, route, purpose, odometer readings, miles and parking and tolls.
Can I log several vehicles?
Keep one log per vehicle. Generate and download a log for one car, then clear it and start the next — the IRS expects mileage per vehicle.