Some employers have stated that they cannot pay the national Agenda for Change mileage rate because they would have to process P11Ds for staff to calculate tax on the additional income. They say this would cost too much or take too much time. However, here at the RCN, we believe this should not stop our members from being properly reimbursed for their expenses.
HMRC set the thresholds for mileage and other expense rates. If an employer pays up to the threshold, no additional tax is due to be paid. However, tax will need to be paid for any expenses paid over the rate set by HMRC here.
Section 17 of the NHS Terms and Conditions booklet sets out mileage rates that trusts can use to reimburse work mileage. These rates can be found here.
NHS Terms and Conditions set a rate of 59 pence per mile (for the first 3,500 miles per year). This is above the tax threshold set by HMRC. Therefore, only the excess amount of 14 pence per mile is subject to tax. If your employer uses payroll to pay your expenses, the P11D is not required. Your payroll can simply calculate the extra pence per mile as income and calculate your tax or National Insurance on a single amount of your salary, plus the mileage.
For example, if your gross salary is £2,500 per month, and you also claimed 500 work miles in the month, your pay slip would show your gross salary of £2,500 and your mileage payment of £295 (500 miles at 59 pence per mile). You would pay tax and national insurance on your salary and £70 of the mileage payment. This would not require the P11D.
If your employer pays your expenses separately from payroll, then a P11D is required to ensure you only pay the correct amount of tax, and that your employer also pays the correct National Insurance contributions. While this is an extra process, it is automated by many payroll systems. Many NHS and other employers manage to process these payments to employees every month.
If your employer is using this as a barrier to increasing mileage rates, please contact us for support.