Tip by type of restaurant
- Full-service, sit-down: 18–20%. Go to 22–25% for great service, a long stay at the table, or a complicated order.
- Buffet: around 10%, since the server mainly brings drinks and clears plates.
- Counter service and fast casual: optional. 0–15% is normal; tip more if staff carried food to the table or handled a large custom order.
- Takeout: optional; 0–10% is common, a little more for a big or fiddly order.
Large parties and auto-gratuity
Many restaurants add an automatic gratuity (often 18–20%) for parties of six or more. Check the receipt for "gratuity" or "service charge" lines before adding a tip on top. If it is already there, you don't need to tip again unless service was exceptional.
Pre-tax or after tax?
Etiquette guides such as the Emily Post Institute recommend tipping on the pre-tax amount. The difference is small (about 1–2 dollars on a $100 dinner), so either is fine, but pre-tax is the standard.