Mileage Tax Deduction Calculator
Calculate your potential tax savings from business mileage. Compare standard rates vs. actual expenses to maximize your deduction.
Country
Tax Year
2025 IRS Mileage Rates
Business
$0.7/mi
Charitable
$0.14/mi
Medical
$0.21/mi
Moving (Military)
$0.21/mi
Your Mileage
Client visits, meetings, deliveries, business errands
Business + personal combined for the year
Business Use Percentage
50.0%
Gas, insurance, repairs, maintenance, registration, depreciation
Enter your vehicle expenses to compare the standard mileage rate vs. actual expenses method. You can still deduct parking fees and tolls on top of the standard rate.
Other Deductible Mileage
Charitable, medical, moving
Your Deduction
Standard Mileage Deduction
$7,000.00
10,000 miles total deductible
Breakdown by Category
Business
10,000 miles × $0.7/miles
$7,000.00
Official Resources
Disclaimer: This calculator provides estimates for informational purposes only. You must maintain detailed mileage logs (date, destination, purpose, distance) to claim deductions. Consult a qualified tax professional for advice specific to your situation.
Understanding Mileage Tax Deductions
When you use your personal vehicle for business, charitable, or medical purposes, you may be able to deduct those expenses on your tax return. Understanding the rules helps you maximize your legitimate deductions while staying compliant with tax authorities.
Two Ways to Calculate Your Deduction
Standard Mileage Rate
Multiply your business miles by the government-set rate per mile/kilometre.
- Pros: Simple to calculate, less record-keeping
- Cons: May result in smaller deduction if you have high vehicle costs
- Best for: High-mileage drivers with efficient vehicles
Actual Expenses Method
Track all vehicle costs and deduct the business-use percentage.
- Pros: May yield larger deduction for expensive vehicles
- Cons: Requires detailed expense tracking
- Best for: Low-mileage drivers with high vehicle costs
Includes: gas, insurance, repairs, maintenance, registration, depreciation, lease payments
Important (US): If you choose the standard mileage rate in the first year your car is used for business, you can switch to actual expenses later. However, if you start with actual expenses, switching back to standard mileage rate has restrictions.
Business Miles vs. Commuting: Key Distinction
The most common mistake is confusing business travel with commuting. Commuting is never deductible, regardless of distance or circumstances.
Home → Regular Office
Daily commute to your main workplace
Example: Driving from home to your employer's office every morning
Office → Client Site
Travel between work locations during the workday
Example: Driving from your office to meet a client, then back
Home Office → Client
Travel from qualifying home office to business locations
Example: Self-employed consultant driving from home office to client meeting
Home → Temporary Work Site
Travel to a location where you'll work for less than 1 year
Example: Contractor working on a 3-month project at a different location
Job 1 → Job 2
Travel between two separate jobs on the same day
Example: Driving from your day job to your evening job
Home → Second Job (on day off)
Going directly to a secondary job from home
Example: Weekend shift at a part-time job when you're not working your main job
Trip Leg Scenarios: What's Deductible?
Understanding how to calculate deductible mileage when your trips include both business and personal stops.
Record-Keeping Requirements
To claim mileage deductions, you must maintain contemporaneous records. "I'll remember" won't hold up in an audit.
Your Mileage Log Must Include
- Date of each trip
- Starting and ending odometer readings
- Total miles/km driven
- Destination (address or name)
- Business purpose of the trip
- Names of clients/contacts (if applicable)
Tip: Use a mileage tracking app to automatically log trips. Many apps use GPS to record trips and allow you to classify them as business or personal.
Country-Specific Rules
Common Mistakes to Avoid
Claiming Commuting Miles
Travel from home to your regular workplace is never deductible, regardless of distance or whether you make business calls during the drive.
No Documentation
Estimating or reconstructing mileage at year-end without contemporaneous records. If audited, claims without logs are typically disallowed.
Double-Dipping
Claiming both standard mileage rate AND actual expenses like gas or insurance. The standard rate already includes all operating costs.
Forgetting Parking & Tolls
Parking fees and tolls for business trips can be claimed in addition to the standard mileage rate—don't miss these legitimate deductions!