The short answer
A 10% service charge is usually added; extra is optional. If the 10% isn't on the bill, leaving it is polite but not obligatory.
What to tip, service by service
- Restaurants
- A 10% 'serviço' is typically on the bill — paying it is customary; add a little more for great service.
- Bars & cafés
- Round up.
- Taxis & rideshare
- Round up the fare.
- Hotels
- Round up or a few reais for housekeeping.
- Tour guides & drivers
- 10% for guides.
Good to know
If the 10% isn't on the bill, leaving it is polite but not obligatory. Customs shift over time and by venue, and tourist areas often expect more than locals give. When in doubt, a small tip in the local currency and cash is rarely wrong.