Mileage Calculator — HMRC Mileage Allowance for Tradespeople
Calculate your HMRC approved mileage allowance for business travel. Uses the current 45p/25p per mile rates for cars and vans.
Total business miles for the period
Miles already claimed at 45p this tax year
How We Calculate This
This calculator applies HMRC approved mileage allowance payment (AMAP) rates to your business miles to calculate the tax-free amount you can claim.
HMRC AMAP rates
- Cars and vans: 45p per mile for the first 10,000 miles, then 25p per mile
- Motorcycles: 24p per mile (flat rate, all miles)
- Bicycles: 20p per mile (flat rate, all miles)
- Passenger supplement: 5p per mile per passenger (cars only)
The 10,000 mile threshold
The 10,000 mile threshold applies per tax year (6 April to 5 April). Once you have claimed 10,000 miles in a tax year, all subsequent miles are claimed at the lower 25p rate. The calculator tracks how many of your first 10,000 miles have already been claimed.
Tax relief calculation
Tax relief = Total mileage allowance x Your marginal tax rate. The mileage allowance reduces your taxable profit, so your actual tax saving depends on whether you pay basic rate (20%), higher rate (40%) or additional rate (45%) income tax.
Frequently Asked Questions
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Last updated: March 2026
All calculations are estimates. Verify with your supplier.