Mileage Log Calculator
Track business, medical, and charity miles. Calculate total IRS mileage deduction.
By Konstantin Iakovlev · Updated April 2026 · Source: SBA — Business Guide
Your Trips
Add a Trip
Total Deduction
$35.09
Total Miles
57
Monthly Avg Miles
5
Deduction by Purpose
| Business (45 mi x $0.725) | $32.63 |
| Medical (12 mi x $0.205) | $2.46 |
| Total Deduction | $35.09 |
Use the Mileage Log Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
Keeping driving sorted into business, medical, and charity categories is what makes a mileage deduction hold up, and this tool tracks each one. The IRS lets taxpayers deduct eligible miles at set rates, which for 2026 are projected at $0.70 per mile for business, $0.22 per mile for medical, and $0.16 per mile for charity. Logged accurately, those miles trim your taxable income while keeping you in line with IRS rules.
The total deduction comes from multiplying the miles in each category by its matching IRS standard rate. Business miles run at $0.70, medical miles at $0.22, and charity miles at $0.16; adding the three category totals together gives your overall IRS mileage deduction for the period in question.
A defensible log records the date, the starting and ending odometer readings, the destination, and the purpose of each trip, which is exactly what substantiates the deduction in an audit. Trips that mix personal and business driving need the business portion clearly separated, or the deduction can be disallowed. A digital log or app cuts down on the errors that creep into hand-kept records and keeps the math accurate.
Example: Small Business Owner's Q1 2026 Deductions
- 1 Input the following mileage for Q1 2026: Business Miles: 1,500 miles, Medical Miles: 150 miles, Charity Miles: 50 miles.
- 2 The calculator will perform the following calculations: Business Deduction = 1,500 miles * $0.70/mile = $1,050.00; Medical Deduction = 150 miles * $0.22/mile = $33.00; Charity Deduction = 50 miles * $0.16/mile = $8.00.
- 3 Your total IRS mileage deduction for Q1 2026 is $1,050.00 + $33.00 + $8.00 = $1,091.00.
- 4 This $1,091.00 can be claimed on your 2026 tax return, reducing your taxable income and potentially lowering your overall tax liability. Consistent logging throughout the year ensures you capture all eligible deductions.
Source: SBA — Business Guide · Last updated: April 2026
Frequently Asked Questions
What is the IRS mileage rate for 2026?
How do I keep a valid mileage log for the IRS?
Can I deduct my commute to work?
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