The advisory fuel rates published by HMRC set fixed amounts that can be paid to an employee using a company car for business mileage, without income tax consequences. It’s possible to use a higher rate, but you must show that the actual fuel cost per mile is greater than the advisory rates.

HMRC has now published the advisory rates applicable from 1 December 2023, with a 1p increase for all diesel car users.

The rates per mile will be:

Engine size Petrol LPG   
1,400cc or less 14p 10p  
1,401cc to 2,000cc 16p 12p  
Over 2000cc 26p 18p  
 

Engine size Diesel
1,600cc or less 13p
1,601cc to 2,000cc 15p
Over 2,000cc 20p