The city tax (Kurtaxe) is CHF 3.50 per person per night, effective 1 January 2024, replacing the previous CHF 2.50 rate. It is charged in addition to the base room rate. Payment includes free use of buses and trains within the A-Welle city network, zones 560 and 570, from 2:00 p.m. on the day of arrival until 2:00 p.m. on the day of departure, plus various other offers in and around Baden.
The source does not specify any exemptions or reduced rates; it describes the city tax as CHF 3.50 per person per night for guests.
The source provides no specific rule for short-term or Airbnb-style rentals. It only states the mandatory city tax of CHF 3.50 per person per night for guests.