Mileage Allowances

For Employees Using Their Own Transport
The approved maximum tax and national insurance free mileage allowances for employees using their own transport for business are as follows:
Flat Rate First 10,000 Miles Miles over 10,000
Car / Van 40p 25p
Motorcycle 24p 24p
Bicycle 20p 20p
Income Tax and NICs are due when allowances exceed these rates. Employees can claim tax relief on any shortfall.
Rates of up to 5p per mile, per passenger, are also tax and NIC free when paid for the carriage of fellow employees on the same business trip.

Fuel-Only Mileage Rates
HMRC advisory mileage rates as at 1 June 2010 for employee private mileage reimbursement or employer reimbursement of business mileage are:
Petrol Diesel LPG
Up to 1400cc 12p 11p 8p
1401cc – 2000cc 15p 11p 10p
Over 2000cc 21p 16p 14p