UK Mileage Tax Relief 2026/27

HMRC Approved Mileage Allowance Payments: 45p per mile for the first 10,000 business miles, 25p above; 24p motorcycles, 20p bicycles. Unchanged since April 2011. If your employer pays less, claim Income Tax relief on the shortfall.

Your business travel

Only business travel — not your commute to a permanent workplace.

p

0 if you get no reimbursement at all.

Tax relief you can claim

£400

On a £2,000 shortfall — claim through HMRC.

HMRC entitlement
£5,000
Employer paid
£3,000
Shortfall (or excess)
£2,000
Relief (or extra tax)
£400

Claim via P87 online (Personal Tax Account) if total expenses claim < £2,500; Self Assessment otherwise.

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How the calculation works

  1. HMRC entitlement = first 10,000 miles × 45p + remaining × 25p (car/van). Motorcycles: miles × 24p flat. Bicycles: miles × 20p flat.
  2. Employer paid = miles × pence-per-mile your employer reimburses.
  3. Shortfall = entitlement − employer paid. If positive, you can claim Income Tax relief on it at your marginal rate. If negative, the excess is taxable earnings on your P11D.
  4. Relief = shortfall × your marginal Income Tax rate (20% / 40% / 45%).

Sources

FAQ

What are the HMRC mileage rates?
HMRC Approved Mileage Allowance Payments (AMR), unchanged since April 2011: 45p per mile for the first 10,000 business miles in a tax year (car or van), 25p per mile above 10,000; 24p per mile for motorcycles; 20p per mile for bicycles. These are the ceiling for what employers can reimburse tax-free - payments above count as taxable earnings.
What counts as a business mile?
Travel from your normal workplace to a temporary workplace, or between two workplaces in the course of your job. The commute between home and your permanent workplace is NOT business travel and CANNOT be claimed. If you're a home-based worker your home can be your permanent workplace - then travel to any client site is business mileage.
What if my employer pays less than 45p/25p?
You can claim Income Tax relief (not a cash reimbursement) on the shortfall. Multiply the shortfall by your marginal Income Tax rate (20%, 40%, or 45%). Example: 12,000 miles at 25p from employer = £3,000; AMR entitlement = £5,000; shortfall £2,000; relief at 20% = £400 / at 40% = £800.
How do I claim the tax relief?
If total claim is under £2,500 per year: fill in form P87 online via your Personal Tax Account, or write to HMRC. If over £2,500: use Self Assessment. Keep mileage records - HMRC can ask for proof up to 4 years after the end of the tax year. Fuel receipts are helpful but a mileage log is the primary evidence.
What if my employer pays more than 45p?
The excess is taxable as earnings. Example: employer pays 60p/mile for 8,000 miles = £4,800; AMR = £3,600; excess £1,200 is added to your taxable income. Most employers cap payments at AMR to avoid this. If yours pays more it should appear on your P11D.
Can I claim mileage if I use a company car?
Different rules. Company-car drivers use HMRC Advisory Fuel Rates (AFR), pence-per-mile figures set quarterly by HMRC that cover only the fuel cost (not wear and tear, since the employer owns the car). AFR is much lower than AMR - typically 8-22p depending on engine size and fuel. This calculator is for personal-vehicle-for-business-use.
Can I claim for carrying passengers on business trips?
Yes - there's a separate Passenger Payment scheme: employers can pay an extra 5p per mile tax-free for each fellow employee you carry on a business journey. The passenger must also be on business travel. You cannot claim tax relief on the passenger payment if your employer does not pay it - AMR only covers the driver portion.
Does this apply to self-employed people?
Yes - sole traders can use the same AMR rates as a simplified expense deduction (45p/25p/24p/20p). Alternative: track actual motoring costs (fuel, servicing, insurance, depreciation) and claim the business-use proportion. You must pick one method per vehicle per year - you can't mix.

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