Mileage Allowance Calculator. AMAP rates + shortfall claim.
HMRC's Approved Mileage Allowance Payments (AMAP). Tax-free up to these flat per-mile rates. If your employer reimburses less, you can claim the shortfall via Self-Assessment.
Only journeys for work — commuting to a regular workplace doesn't count.Travel between client sites, to temporary workplaces, or as part of the work itself (delivery, mobile services) all qualify. HMRC routinely asks for a mileage log — keep one even if it's a spreadsheet.
Leave at 0 if you're self-employed or your employer pays nothing. If they pay 30p/mile, set this to 30.
- Business miles8,000 mi
- First 10,000 mi @ 45p£3,600
- Remaining 0 mi @ 25p£0
- AMAP allowance£3,600
- Total tax-free£3,600
AMAP rates are unchanged for years: 45p / 25p for cars + vans, 24p motorcycles, 20p bicycles. If your employer pays MORE than the AMAP rate, the excess is a taxable benefit. Mileage Allowance Relief lets you claim the shortfall.