Tipping in Switzerland
Service is included. Here is the simple version of what people commonly do in Zurich restaurants, cafés and taxis.
Short version: tipping is not mandatory because service is included. Rounding up is common; around 5–10% can be used for good service.
Restaurants and cafés
For a CHF 47 bill, saying “50, please” is completely normal. With card payments, state the total before the terminal is processed.
Do not import another country’s rules
You do not need a US-style 20% calculation. A gratuity is a gesture, not an automatic surcharge.