For information about pecuniary liabilities see EIM00580. Some
employers arrange for their employees to submit bills which the
employee has personally incurred for repayment. For example, fuel
and service bills for which the employee has contracted with the
provider.
Providing such payments are paid in recognition of the use of
the employee’s privately owned car, they fall within the
definition of relevant motoring expenditure.
This is one of the differences between the NICs motoring expenses scheme and the income tax statutory scheme. For income tax purposes, pecuniary liability payments are not mileage allowance payments, see EIM31210, so must be returned on form P11D in the normal way.