Hello @Lillian8.
I can try to explain a little bit.
In Norway you have to pay income-taxes if you rent your properties.
With some exceptions:
*If you live in the same building and the expected income is less than 50% of the VALUE (yes this is a potential trap) of the entire house if rented.
*If you make less than 20000 NOK a year on the property.
*If you rent it out less then 6 months a year. AND make less than 20000 NOK
For cabins there are different rules. Here you have to pay taxes of every amount FROM 10000 NOK. Note that you can deduct ANY cost you have to keep your cabin at same standard. If you have to fix something broken, like a shower, and make 20000, you pay tax for 10000-2500(cost)=7500 NOK. But you can NOT deduct if you do something only to increase the standard.
These are not taxes that AirBnB charge for you. You have to list it yourself every year when you file your taxes.
I hope this helps a bit?
Mariann 🙂