@Quincygeen probleem !
@Alexander154: unfortunately, each city has its own rules for renting out to tourists and these rules change constantly. So I am afraid that you have to ask at each different municipality what their specific rules are, there is no central website where you can find the links to the rules of each city. For
Amsterdam we need a permit for either B&B ( less than 40% of the space of yur house wher you live in at the same time amoung other rules) or Vakantieverhuur ( renting out your whole house/apartement where you normally live, up to 30 days per year amoug other rules)
The rules for Amsterdam are to be found here:
https://www.amsterdam.nl/wonen-leefomgeving/wonen/vakantieverhuur/