02/09/2026
From 1 September 2026 HMRC's new Advisory Fuel Rates apply. If you have employees using company cars, or if you use a company car yourself this is worth knowing about.
Advisory Fuel Rates are the approved rates HMRC uses to calculate reimbursement for business mileage in company cars. They are reviewed and updated four times a year in March, June, September, and December, to reflect changes in fuel prices.
Here is why they matter.
If your business reimburses employees for business mileage in a company car using the correct Advisory Fuel Rate, no tax or National Insurance is due on that reimbursement.
If you reimburse at a higher rate than HMRC allows, the difference is treated as a taxable benefit. If you reimburse at a lower rate, employees can claim the difference back through their tax return.
Getting this right is straightforward but only if you are using the correct rates. And with rates changing four times a year it is easy to miss an update.
The new rates from 1 September 2026 are available on the HMRC website, or get in touch with us and we will make sure you are using the right figures.
π² Get in touch today if you have any questions about Advisory Fuel Rates or any other aspect of your business finances.