Planning calculator · Assumptions reviewed July 12, 2026
Mileage Deduction Calculator
Estimate a mileage-method deduction with a rate you enter, then compare it with optional actual vehicle expenses.
Estimated result
Calculation breakdown
Amounts are rounded to the nearest dollar for planning. They are not a tax return or payment instruction.
How this estimate works
The mileage estimate multiplies qualified business miles by your entered rate and adds eligible parking and tolls. The optional actual method adds the entered deductible actual expenses to parking and tolls for a simple comparison.
Assumptions
- No default mileage rate is supplied; it must be verified for the applicable tax year.
- Parking and tolls are assumed eligible and not already included elsewhere.
Limitations
Commuting generally differs from qualified business mileage. Eligibility, method switching, depreciation, vehicle ownership, substantiation, and mixed use can change the deduction. Keep contemporaneous records and consult current IRS guidance.
Frequently asked questions
Are these results tax advice?
No. They are simplified educational estimates. Use current official guidance or a qualified professional for decisions.
Are my entries sent anywhere?
No. Calculations run locally in your browser and this site does not submit calculator entries to a server.
Why are results rounded?
Whole-dollar display avoids suggesting precision that a simplified estimate cannot support.
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Records and explanations for this estimate
Use these guides to improve inputs and review important limitations.
Educational guides
Profession guides
Expense guides
Tax disclaimer
This tool provides a simplified informational estimate, not tax, legal, accounting, or financial advice. Tax rules and individual circumstances vary. Verify current rules with official IRS guidance and consult a qualified tax professional.