looking at possibly ending up as self-employed in Leuven, it seems one can only deduct from tax the accommodation costs if rental contract explicitly states professional use of the property is allowed.
What happens if one is booking B&B, hotels etc. only? in that case there would not be a rental contract and no such clause... E.g. via AirBnB one could get monthly or even longer term booking but that would never have a rental contract nor a specific clause in it for professional use...
Thanks for any thoughts,