Car & travel · 2026/27

Mileage allowance calculator UK 2026/27

Calculate approved employee business mileage amounts for 2026/27. Compare car, motorcycle or bicycle miles with employer payments and potential expense relief.

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Your estimate

Approved Income Tax mileage amount

£6,000.00
Employer payments received£0.00
Potential unreimbursed expense relief£6,000.00
Payment above approved amount£0.00

2026/27 approved Income Tax mileage amount, not an automatic cash refund or employer payment entitlement. Own vehicle and qualifying business travel only; excludes commuting, company cars and passenger supplements. The unreimbursed amount is potential expense relief, not the tax saving.

How the mileage allowance calculator uk 2026/27 works

Cars: first 10,000 miles at 55p, then 25p. Motorcycles: 24p; cycles: 20p. Subtract employer reimbursement to show potential relief.

UK data and rules

2026/27 data · Checked 16 October 2026. Rules are a dated snapshot, not a live feed.

Read about data coverage and updates

Worked example: business mileage allowance

This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.

Total business miles in the tax year
12,000
Employer mileage payments received (£)
0
Your own vehicle
Car / van

Approved Income Tax mileage amount: £6,000.00

Cars: first 10,000 miles at 55p, then 25p. Motorcycles: 24p; cycles: 20p. Subtract employer reimbursement to show potential relief.

Business mileage allowance: questions answered

Is the unreimbursed mileage amount a tax refund?

No. It is the potential qualifying expense left after employer reimbursement. Any tax relief depends on your tax position; the approved amount is not an automatic cash payment from HMRC.

Plan the next step

Fuel cost calculator UK: petrol and diesel: Estimate a trip using UK miles and imperial MPG.

Income Tax calculator UK 2026/27: Work out annual Income Tax using the right UK country bands.

Browse the car & travel calculators for more tools in this topic.

Using your result

Example inputs are a starting point. Replace them with your figures and select Calculate result. Results are rounded for display; calculations use unrounded values.

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