You use a vehicle as part of your
- commercial,
- self-employed or
- agricultural or forestry activity?
Then the costs incurred for business journeys are business expenses.
In order to be able to prove this to the tax office, you must be able to separate the costs for business journeys from the costs for private journeys.
To do this, you can
- keep a logbook,
- calculate the private use of the vehicle according to the interval rates or
- estimate the extent of private use if you use the vehicle for business purposes but do not fulfil the requirements for a calculation based on the interval rates.
Note: You may not recognise the costs for private journeys as As a business expense. If you have allocated the vehicle to your business assets, you must recognise the use for private journeys as a withdrawal and therefore as business income.
You must also separate costs for business and private journeys if you are provided with a car by your employer and are allowed to use it for private journeys. The costs incurred for your private use are regarded as wages, which you must pay tax on.