UK Mileage Allowance — What Are Your Business Miles Worth?

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About this tool

If you drive your own car for work, HMRC's Approved Mileage Allowance Payments are 45p/mile up to 10,000 miles, 25p thereafter. Employers can pay less; the shortfall becomes Mileage Allowance Relief, claimed via self-assessment (or P87 form). This calculator computes the approved amount, the gap, and the tax-relief value at your bracket.

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