Cadastral income

I have always included it in previous years, but I also do part of my business from home, so I think it's only logical to include it. There is even an already created cost category for it in Dexxter, called 'property tax'. In terms of percentage, all these mixed costs are standard set to 20% in Dexxter. But you can always deviate from this, of course. You should also view the article in the learning center. Search for 'professional percentage' and you'll find it :)

Good luck!