US Mileage Deduction Calculator — Standard vs. Actual Expense Methods
Compare the IRS standard mileage deduction to the actual expense method to estimate your deductible vehicle expense for business use.
- Page updated:
- Jan 3, 2026
- Tool version:
- v1.0.1
Overview
Estimate your deductible vehicle expense using either the IRS standard mileage rate or the actual expense method. Provide business miles for the standard calculation, or total vehicle expenses and business-use percentage for the actual method.
Results
Estimated deductible amount
$655.00
Standard method calculation
—
Actual expenses calculation
—
Recommended method
Actual expense method likely yields a larger deduction. Consider actual expenses and confirm depreciation rules.
How to read the result
- What it means
- The displayed value is an estimate based on your inputs. It represents the calculated scenario under current assumptions, not a guaranteed amount.
- Calculation limits
- The model uses simplified formulas and cannot account for all variables in your specific case (local regulations, personal conditions, temporal changes).
- Next step
- Use the result as a starting point. Adjust parameters to compare scenarios and validate with a professional when needed.
Glossary+−
- Standard mileage rate
An IRS-published rate (dollars per mile) used to compute deductible vehicle expenses for business travel without itemizing actual costs.
- Actual expense method
A method that determines deductible vehicle expenses by adding actual eligible costs and prorating by business-use percentage.
- Business-use percentage
The share of total vehicle use attributable to business, used to apportion actual expenses.
Key takeaways
This tool compares the IRS standard mileage rate to the actual expense method and provides an estimate of deductible vehicle expenses. Use it to inform your decision but verify rates and rules with IRS guidance or your tax advisor.
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Worked examples
Example — Standard method
Compute standard deduction using business miles.
Interpretation
Using the standard rate yields a $786 deduction.
Example — Actual expenses method
Compute deduction by apportioning total vehicle expenses by business use percentage.
Interpretation
Using actual expenses yields a $3,600 deduction.
Frequently asked questions
Which method should I use?
Compare the two methods: calculate the standard rate deduction and the actual-expense deduction for your situation. Use the method that gives the larger deduction, subject to IRS rules and recordkeeping requirements. Certain choices (like claiming depreciation) can affect future eligibility for the standard rate.
Where do I find the official mileage rate?
Check the IRS website for the current standard mileage rate. The default rate in this tool is for estimation only and may not reflect the current tax year.
Do I need receipts for the standard mileage method?
You should maintain a mileage log showing dates, business purpose, and miles driven. For the actual expense method, retain receipts for the costs you claim.
Sources & references
- IRS - Deducting vehicle expenses: https://www.irs.gov/taxtopics/tc510
- IRS - Standard mileage rate information: https://www.irs.gov/newsroom/standard-mileage-rates
Quality & oversight
- Author
- Ugo Candido, MBA
- Maintained by
- Ugo Candido, MBA
- Page updated
- Jan 3, 2026
- Tool version
- v1.0.1