Mileage Calculator · Free UK 2026/27
Calculate your tax-free mileage allowance at the new 55p HMRC rate, and claim tax relief on any shortfall from your employer. Updated for 2026/27.
Mileage Calculator
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Vehicle type
Tax-free mileage allowance (HMRC)
0.6p average per mile · £366.67/month
First 10,000 miles @ 55.00000000000001p
£4,400.00
Miles above 10,000 @ 25p
£0.00
Based on HMRC Approved Mileage Allowance Payments (AMAP) for 2026/27. Tax relief on a shortfall is claimed via HMRC (form P87 or self-assessment) and equals the shortfall multiplied by your marginal tax rate. Employer rates above the AMAP rate may create a taxable benefit. Figures are estimates, check gov.uk for your exact position.
How to Calculate UK Mileage Allowance
Quick Answer: For 2026/27, HMRC's approved mileage rate is 55p per mile for the first 10,000 business miles in cars and vans, then 25p per mile above that. Motorcycles are 24p and bicycles 20p per mile with no cap. Your employer can pay these amounts tax-free, and if they pay less, you can claim tax relief on the difference at your marginal rate.
2026/27 Mileage Rates
The car and van rate increased from 45p to 55p per mile for the 2026/27 tax year, the first rise since 2011. The rate covers all the running costs of using your own vehicle for work: fuel, insurance, depreciation, servicing and repairs. Payments up to the approved amount are tax-free; only payments above it become a taxable benefit.
HMRC Approved Mileage Allowance Payments (AMAP) 2026/27
| Cars and vans, first 10,000 milesup from 45p | 55p / mile |
| Cars and vans, above 10,000 miles | 25p / mile |
| Motorcycles | 24p / mile |
| Bicycles | 20p / mile |
Source: HMRC Approved Mileage Allowance Payments, gov.uk
Formula
Allowance = min(miles, 10,000) × 55p + max(0, miles − 10,000) × 25p | Relief = shortfall per mile × miles × tax rate
12,000 miles: 10,000 × 55p + 2,000 × 25p = £6,000 tax-free | Paid 45p for 10,000 miles: 10p × 10,000 × 20% = £200 relief
Worked Example: Community nurse, 9,500 business miles
Relief on an employer shortfall is claimed from HMRC on form P87 (or via self-assessment) and can be backdated up to four tax years.
What Counts as a Business Mile
Business mileage is travel you make for work, visiting clients, driving between sites, attending meetings or training away from your normal base. Your ordinary commute between home and your permanent workplace never counts, even if you drive it. Temporary workplaces are treated differently: travel there can qualify if the assignment is limited in duration. If you use the same vehicle partly for private journeys, only the business proportion is claimable, which is why a dated mileage log matters.
Mileage Tax Relief on a Shortfall
Many employers still pay 40p, 45p or fuel-only arrangements. The gap between what they pay and the approved rate is called Mileage Allowance Relief. You do not get the shortfall paid directly; you claim tax relief on it, meaning HMRC repays the tax you overpaid: the shortfall in pounds multiplied by your marginal rate (20%, 40% or 45%). Claims are made on form P87 if you do not file a self-assessment, and HMRC allows backdating of up to four tax years, so a rate change like the move to 55p is worth checking against what your employer actually pays.
Frequently Asked Questions
For the 2026/27 tax year, the Approved Mileage Allowance Payment (AMAP) rate for cars and vans is 55p per mile for the first 10,000 business miles, then 25p per mile above that. Motorcycles qualify for 24p per mile and bicycles for 20p per mile, with no annual cap. The car and van rate rose from 45p to 55p for 2026/27, its first increase since 2011. Payments up to these rates are tax-free.