Hello specialists, I use a company car which I am taxed at 1%, I do not keep a travel book. In our company, however, it is “gentlemen agreement” that the fuel card is not used on holiday. This of course reduces my monetary advantage, the tax office assumes that the flat-rate 1% taxation covers all the costs of the car. Question: Can I deduct these self-paid fuel costs from the tax (or has someone ever done so? In this case, it is not possible to do so in the same way as in the past.