Visual Total Bill Composition Share
How Dining Gratuity & Splitting Works
Group restaurant calculation accounts for subtotal base pricing, regional sales tax add-ons, and selectable tip baselines:
Sales Tax Addition
Compute local state or municipal sales tax applied directly to the food and beverage subtotal[cite: 37].
Gratuity (Tip) Computation
Apply the tip percentage multiplier against either the pre-tax food subtotal or the full post-tax receipt total[cite: 37].
Equal Party Group Division
Sum the grand total and distribute costs evenly across all contributing dining guests[cite: 37].
📊 Benchmark Simulation ($100 Subtotal / 18% Tip / 8% Tax / Pre-Tax / 4 People)
Frequently Asked Questions
Should tip be calculated before or after sales tax?
Traditional etiquette suggests tipping on the pre-tax food and beverage subtotal, though post-tax tipping is also common practice[cite: 37].
How do I handle automatic gratuity (auto-grat) for large parties?
If restaurants apply mandatory auto-grat (typically 18–20% for 6+ guests), override manual tip percentage accordingly to avoid double-tipping[cite: 37].
What is standard US restaurant tipping percentage?
Standard service baseline ranges from 15% to 20% for sit-down dining, adjusting upward for exceptional hospitality[cite: 37].