How to Split Tax and Tip Fairly
When you split a restaurant bill by item, tax and tip are the part people get wrong. Dividing them evenly quietly overcharges whoever ordered the least. Here's the fair way — with the math worked out.
Why splitting tax and tip evenly isn't fair
Imagine three people: one orders $60 of food, the others $20 each. If you split a 20% tip evenly, everyone pays the same $6.67 of gratuity — even though the big order is driving most of the bill. The light eaters end up subsidising the tip on food they never ate.
The fair method: split in proportion to each order
The fair approach is simple: each person's share of tax and tip should match their share of the food. If your order is 60% of the subtotal, you cover 60% of the tax and 60% of the tip. Mathematically, that's the same as applying the same tax rate and tip percentage to each person's own items.
A worked example
A $100 subtotal, $8 tax, and a 20% ($20) tip — split three ways by what each person ordered:
| Person | Order | Share | Tax | Tip | Total |
|---|---|---|---|---|---|
| Alex | $60 | 60% | $4.80 | $12.00 | $76.80 |
| Sam | $20 | 20% | $1.60 | $4.00 | $25.60 |
| Jordan | $20 | 20% | $1.60 | $4.00 | $25.60 |
Split evenly, each person would have paid $42.67. The proportional method has Alex paying $76.80 and the others $25.60 — which is exactly fair, because Alex ordered three times as much.
Let the app do the math
Doing this by hand for a table of six is where people give up. Check Please! splits tax and tip in proportion to each person's items automatically — you just scan the receipt and assign dishes, and every share comes out fair. For a quick even split instead, use the bill split calculator.
Split your next bill in seconds
Download the Check Please! bill splitter app, scan the receipt, and let the AI do the math.
