Learn the why behind the math
QuickTip is more than a calculator. Use these guides to understand tipping norms, sales tax rules, and common edge cases like large groups or delivery services.
Tipping basics in the U.S.
Clear percentages, when to tip, and how to handle quick‑service vs full‑service.
Read the guideTax vs tip: what counts?
Learn how to calculate tips on pre‑tax totals and why it matters.
Read the guideSplitting bills the smart way
Tips for groups, shared items, and fair totals without awkward math.
Read the guide