Traditionally, tips are calculated on the pre-tax subtotal. The server's service has nothing to do with the tax rate. However, tipping on post-tax is also common and results in a slightly higher tip. Either is acceptable—the difference is usually small.

15-20% is the standard range for restaurant service in the US. 15% is acceptable for average service, 18-20% for good service, and 20%+ for excellent service. For poor service, 10-12% may be appropriate.

Yes, tip on the entire bill including alcohol. Unless your bill is unusually high due to expensive wine, include drinks in your tip calculation. For bottle service at bars, some suggest tipping on the pre-discount price.

Always check your bill for "gratuity included" or "service charge" (common for large parties, 18-20%). If included, you don't need to add more, but you can leave extra for exceptional service.

Five states have no state sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon. However, Alaska allows local jurisdictions to collect their own sales tax.

No. Many states exempt groceries from sales tax but still tax restaurant food. Some states have reduced rates for food. Always check your specific state and local rules.

The simplest method: divide the total (including tax and tip) by the number of people. For fairness with different orders, calculate each person's items plus their share of tax and tip. Our calculator handles both.

Tipping on takeout is optional but appreciated. If you do tip, 10-15% is common, or $1-2 for simple orders. Consider tipping more if the order is complex, large, or if the staff helped carry it.

They're essentially the same thing. Gratuity is the more formal term often used on bills and for automatic service charges. Tip is the casual, everyday term. Both refer to extra payment for service.

Yes, but it should be disclosed. Many restaurants add 18-20% automatic gratuity for parties of 6+ guests. This must be printed on the menu or communicated before ordering in most jurisdictions.