Do I have to pay tax on Airbnb income?
Yes, with no de minimis threshold. Income from short-term letting is taxable income and is declared as income from furnished flats — with all rental income actually received, including cleaning fees passed on. There is no amount below which declaration falls away; even three weeks of holiday letting belong in the tax return. Deductible are debt interest, maintenance costs and, in many cantons, a flat rate for wear on the furnishings. With furnished letting this point weighs more heavily than with long-term renting: textiles, crockery and small appliances wear out faster under changing use. Two particularities. Anyone letting owner-occupied property temporarily may reduce the imputed rental value (Eigenmietwert) by the letting period — which presupposes evidence of the occupied days. And if the property does not lie in your canton of residence, an inter-cantonal tax apportionment may become necessary: the canton and municipality where the property lies then have a say in the taxation.
