Mileage allowance payments – the maximum tax-free amount
To save work, employers can pay employees a mileage allowance if they use their own car for business journeys. The Government have recently cleared up confusion as to what can be paid tax-free, confirming the maximum tax-free amount.
Mileage allowance payments
The approved mileage allowance payments system is a simplified system that allows employers to pay tax-free mileage allowance payments to employees who use their cars for business travel. Under the system, payments can be made tax-free up to the ‘approved amount’.
A similar, but not identical, system applies for National Insurance purposes.
The approved amount
The approved amount for tax is calculated for the tax year as a whole and is simply the reimbursed business mileage for the tax year multiplied by the tax-free mileage rates for the type of vehicle used by the employee. Rates are set for cars and vans, motor cycles and cycles and are as shown in the table below. They have been unchanged since 2011/12.
Kind of vehicle
Rate per mile
Car or van
45 pence per mile for first 10,000 business miles
25 pence per mile for subsequent business miles
24 pence per mile
20 pence per mile
Mo uses his own car for business and drives 12,350 miles in the tax year. The approved amount is £5,087.50 (10,000 miles @ 45p per mile + 2,350 miles @ 25p per mile).
Any payments made in excess of the approved amount are taxable and must be reported to HMRC on the employee’s P11D. If, on the other hand, the employer does not pay a mileage allowance or pays less than the approved amount, the employee can claim a deduction for the difference between the approved amount and the amount actually paid, if any.
Earlier in the year, a petition went before Parliament calling for an increase in the advisory rate from 45 pence per mile to 60 pence per mile to reflect the increases in fuel prices since 2011. Parliament rejected the petition stating that the rates remained adequate as they covered all running costs and the fuel element was only a small part. However, in their response, they pointed out that employers could pay higher amounts tax-free where this represented the amount of actual expenditure and could be substantiated:
'The AMAP rate is advisory. Organisations can choose to reimburse more than the advisory rate, without the recipient being liable for a tax charge, provided that evidence of expenditure is provided.'
The Government subsequently backtracked on this, stating in a written Parliamentary statement that:
‘The response [to the petition] stated that actual expenditure in relation to business mileage could be reimbursed free of Income Tax and National Insurance contributions. This is in fact only possible for volunteer drivers. Where an employer reimburses more than the AMAP rate, Income Tax and National Insurance are due on the difference. The AMAP rate exists to reduce the administrative burden on employers.’
Maximum tax-free amount
The maximum amount that can therefore be paid tax-free to employees using their own car for work is the approved amount, regardless of the car that they drive or the actual costs incurred. However, if the employer wishes to pay more, car sharing could be encouraged and the employer could also pay passenger payments (of 5pence per mile) for each colleague that the driver gives a lift to (providing the journey is also a business journey for them).
For company car drivers, the maximum tax-free amount that can be paid is governed by the prevailing advisory fuel rates published by HMRC.