If you get reimbursed less than HMRC’s advisory amount by your employer (or not at all), then you can claim mileage allowance relief (MAR) as a tax deduction. For more details and to check if you can - and how to - make a claim, go to the gov.uk website. You’ll need to ke...
3) They run the risk of having the wrong mileage rate being used which will result in increased costs as employees may claim, for instance, 0.45p, when the correct rate should be 0.25p. If they pay more than the Approved Mileage Allowance Payment rate, then it becomes taxable on the P1...