Where an employee uses their own vehicle in the course of more
than one employment during a single tax year, each employment is
treated separately (so each has its own 10,000 mile higher rate
limit for cars and vans, see
EIM31240).
This rule is modified if the employments are associated. The
business mileage from all associated employments is added together
when working out whether the 10,000 mile limit has been reached
(see example at
EIM31380).
This applies both for working out the amount of any mileage
allowance payments that are exempt from tax as approved mileage
allowance payments and for working out the amount of any mileage
allowance relief that is due (see
EIM31235).
In broad terms, two employments are associated if the earnings
are added together in working out if an employee earns at least
£8,500 a year, see
EIM20106.
In more detail, one employment is associated with another
if:
To see if the first or second of these apply, use the guidance at EIM20106. If there is a situation that does not come within the first or second and that you consider might come within the third, seek advice from an Inspector who deals with technical issues on corporation tax.