Keep the kind of mileage log the IRS asks for: date, business purpose, destination and odometer readings for every trip. The generator works out the miles, splits business, medical, charity and personal driving, calculates the standard mileage deduction and business-use percentage, and prints a clean landscape PDF log.
Last updated:
Driver & vehicle
Defaults are the IRS standard mileage rates for 2025: 70¢ business, 21¢ medical, 14¢ charity.
Enter start and end odometer readings and the miles fill in automatically, or type the miles directly. A new trip starts where the last one ended.
Summary
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How to use the Mileage Log Generator
Enter the driver and vehicle details, and the odometer reading at the start (and end) of the year or period if you have them.
Check the rates: they start at the IRS 2025 rates. Change them to the current year's rates or your employer's reimbursement rate.
Add each trip with the date, business purpose, destination and the start and end odometer. The miles are calculated for you.
Pick the trip type (business, medical, charity or personal) so each is totaled at the right rate.
Review the summary for business miles, the deduction and the business-use percentage, and fix any flagged readings.
Download the PDF log or CSV to keep with your tax records, or print the blank log to fill in by hand.
How the numbers in your log are calculated
Trip miles = end odometer − start odometer. 41,499.8 − 41,426.6 = 73.2 miles.
Business deduction = business miles × business rate. 183 mi × $0.70 = $128.10.
Total miles driven = odometer at end of period − odometer at start. If you leave those blank, the tool uses the lowest and highest odometer readings in the log.
Business-use percentage = business miles ÷ total miles driven × 100.
Unlogged miles = the gap between one trip's end reading and the next trip's start reading. These are usually commuting or personal miles.
IRS standard mileage rates
Year
Business
Medical / moving*
Charitable
2025
70¢ per mile
21¢ per mile
14¢ per mile
2024
67¢ per mile
21¢ per mile
14¢ per mile
2023
65.5¢ per mile
22¢ per mile
14¢ per mile
Source: IRS standard mileage rate notices. *Moving miles apply only to active-duty members of the Armed Forces. Rates for later years are announced by the IRS, usually in December; edit the rate fields to match.
Tips for a log that holds up
Write it down the same day. A log kept at or near the time of each trip carries far more weight than one rebuilt from memory at tax time.
Be specific about purpose. "Client meeting - Harbor Dental" or "Deliver order #2231" beats "Business".
Record the year-start odometer on January 1 (or the day you start using the car for business) and the year-end reading on December 31.
Keep the blank log in the car. Fill it in by hand on the road, then type the trips here at the end of the week for clean totals.
Save parking and toll receipts separately; they are deductible on top of the standard mileage rate for business trips.
Frequently asked questions
What does the IRS require in a mileage log?
For each business trip the IRS expects the date, the business purpose, the destination and the miles driven, recorded at or near the time of the trip. You also need the total miles the vehicle was driven during the year, usually from the odometer at the start and end of the year, so the business-use percentage can be shown. This log captures all of these.
What are the IRS standard mileage rates for 2025?
For 2025 the IRS rates are 70 cents per mile for business use, 21 cents per mile for medical (and moving for active-duty military), and 14 cents per mile for charitable driving. The charity rate is set by law and rarely changes. The IRS announces new rates each year, so check irs.gov and edit the rates for other years.
How is the mileage deduction calculated?
Deduction = business miles × the standard business rate. For example, 2,400 business miles × $0.70 = $1,680. Parking fees and tolls for business trips can be added on top. Medical and charity miles are calculated the same way at their own rates, but they are claimed as itemized deductions rather than business expenses.
Is commuting deductible mileage?
No. Driving between your home and your regular workplace is commuting and counts as personal miles, even if you take calls on the way. Trips from your workplace to a client, between job sites, or to a temporary work location are generally business miles. The log shows gaps between trips so commuting and personal driving are not hidden.
What is business-use percentage?
It is business miles divided by total miles driven in the period. If the car was driven 15,000 miles and 6,000 were business, business use is 40%. It matters if you use the actual-expense method, because only that share of gas, insurance, repairs and depreciation is deductible.
Can I use this log for employer mileage reimbursement?
Yes. Set the business rate to your employer's rate, log the trips and send the PDF or CSV with your expense report. Reimbursements at or below the IRS rate under an accountable plan, backed by a log like this, are generally not taxable income.
Is my trip data stored anywhere?
Only in your own browser. The log is saved in local storage so you can keep adding trips over weeks or months on the same device, and the PDF and CSV are generated locally. Download a copy regularly, because clearing your browser data deletes the saved log.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.