Restaurant Guide · 2026 Tip Calculator With Tax — US Restaurant Guide Should you tip before or after tax? How much is 20% on a $85 bill with NYC tax? Get the exact answer instantly. ⚡ Quick Answer In the US, the standard is to tip on the pre-tax subtotal — not the final amount after tax is added. For example, on an $80 bill with 8.875% NYC tax, you tip on $80, not on $87.10. Use the free calculator below for instant results. Tip Calculator With Tax — Free Tool Enter your bill subtotal, your tip percentage, and your local sales tax rate. The calculator will show you the exact tip amount, grand total, and per-person split. 10% 15% 18% 20% 25% Custom Bill Amount $ Tip % % Split Between 👤 Sales Tax % (optional) % ...