How do tax, tip and splitting combine?
A 20% tip and an 8% sales tax are both percentages, but they are not necessarily percentages of the same number. This example tips on the pre-tax subtotal, so each part can be checked separately.
What we put into the calculator
The meal subtotal is $120. Sales tax is an illustrative 8%, the tip is 20% of the pre-tax subtotal, and four people divide the final bill evenly. No fixed service charge or item-by-item allocation is assumed.
The numbers behind the result
| Food and drinks | $120.00 |
|---|---|
| Sales tax (8% × $120) | $9.60 |
| Tip (20% × $120) | $24.00 |
| Combined total | $153.60 |
| Equal split among four | $38.40 |
What the result means
The tip is $24, not 20% of the taxed total. The final bill is $120 + $9.60 + $24 = $153.60; dividing by four gives $38.40 each. If your group tips after tax instead, the 20% tip would be $25.92 and each share would rise to $38.88. Neither option is chosen automatically by the calculator—you can select the tip basis.
Try changing one assumption
Switch “Tip calculation basis” from before tax to after tax, then change the number of people from four to three. Check how each assumption changes the per-person result.
Open calculator with these inputs ↗Where the estimate stops
Restaurants can calculate service charges differently, sales taxes vary, and groups often pay unequal shares. The calculator models a simple even split; agree on any cent-rounding adjustment at payment time.
Calculation method: The displayed sample result is checked against the same JavaScript formula that powers the calculator. No live quotes, rates or financial data are implied.