However, according to recent research from the restaurant app Toast, Washington customers are among THE WORST tippers in the nation. Toast Analyzed Transactions From 171-Thousand LocationsThe average restaurant tip at Toast restaurants in the U.S. is 19.3% at full-service restaurants (FSRs) and 15.8% at quick-service restaurants (QSRs) as of Q1 2026. Read More: WA's Most Beloved Raccoon Gets His Own Night With the MarinersThe average tip at full-service restaurants in Washington was at 17.8%. Acording to Toast, How Customers Receive Their Food Affects the Tip Amount Given• Dine-in service = Highest tipping rates• Take-out orders = Moderate tipping rates• Delivery orders = Lower tipping rates than dine-inThis pattern suggests that the level of personal service and interaction directly correlates with tipping behavior in restaurant settings. Get our free mobile appThe average tip percentage for eating out is 15% to 20%.