How to split a restaurant bill

The bill arrives, someone says “shall we just split it?”, and the person who had soup and tap water does some quiet arithmetic. Here is how to split a restaurant bill so that nobody has to be the one who objects.

Split the bill evenly or by what you ordered?

Split evenly when everyone ordered within a few dollars of each other. It is fast, it is friendly, and the small unfairness evens out over a year of dinners with the same people. Total including tip, divided by heads, done.

Split by what you ordered when the gap is big enough that someone would mind. In practice that is almost always one of three things:

• Drinks. A bottle of wine shared by three is a real cost to the fourth person who didn’t have any.
• One very different order. A steak next to a side salad.
• Someone who arrived late or left early and missed most of the meal.

A reasonable rule: if splitting evenly would cost anyone more than about 15–20% over what they actually ordered, split by order. Below that, split evenly and don’t spend the end of a nice evening on a calculator.

How to split by what you ordered, without itemising every line

You don’t need to assign every bread basket. Sort the bill into three piles:

1. Shared plates — starters, sides, anything that went in the middle. Split evenly between the people who ate them.
2. Personal items — each person’s main, dessert, their own drinks. Charged to whoever ordered them.
3. Shared drinks — the bottle or the jug. Split between the people who drank it, not the whole table.

Add up each person’s piles. That is their subtotal. Then add the tip.

How to split a bill with tip

The tip is a percentage of the food, so the fair way is to apply the same percentage to each person’s subtotal. Someone whose subtotal was $29 tips on $29, not on a quarter of the table’s $162.

If the restaurant already added a service charge, it works exactly the same way — it is a tip that has been decided for you. The thing to watch for is tipping twice: on top of an included service charge, most people leave nothing or only rounding.

Tax works the same way as the tip: proportional to each person’s subtotal. In the example below, menu prices include tax, so there is only the tip.

A worked example: four friends, one bill

Ana, Ben, Chloe and Dev have dinner. The bill:

• Shared starters: $36.00
• Mains: Ana $24.00, Ben $18.00, Chloe $22.00, Dev $16.00
• A bottle of wine shared by Ana, Ben and Chloe: $42.00
• Dev’s soda: $4.00

Subtotal $162.00, plus an 18% tip of $29.16, makes $191.16. Ana puts down her card.

Split evenly, that is $47.79 each. But Dev didn’t drink, and his main was the cheapest. Split by what each person ordered:

The tips add up to exactly $29.16 and the totals to exactly $191.16 — no rounding needed here. When a tip percentage produces fractions of a cent, round each person’s figure and give the leftover cent to whoever paid the card.

Dev pays $34.22 instead of $47.79 — $13.57 less, which is roughly what the wine and the difference in mains cost. The other three each pay between $0.59 and $7.67 more than an even split. That is the typical pattern: one person is badly served by an even split, and everyone else barely notices the change.

The bill split calculator does this for you: enter the items, who had what, and the tip.

One card, then everyone pays back

Most tables end with one person paying and the rest owing them. That is the simplest arrangement for the restaurant and the cleanest one for the group, as long as the paying-back happens the same day.

Record it as one expense: Ana paid $191.16, split between all four by exact amounts — the four totals above. In kisir the editor won’t save until those amounts add up to the bill, which catches the typo before it becomes a debt.

If the same group eats out several times — on a trip, say — don’t settle after every meal. Record each dinner as it happens and settle the whole lot at the end in the fewest transfers. When different people pay on different nights, here is how to split group bills with several payers.

The awkward cases

The non-drinker. Drinks are the most common reason an even split is unfair, and the person who didn’t drink is the least likely to say so. Offer before they have to ask: drinks go to the drinkers.

Two cards for one bill. If Ana and Ben each paid half, record one expense with two payers, each for the amount they actually put in. The split between the four people doesn’t change.

Cash on the table. Three people throw in $50 notes for a $140 bill and one of them takes the $10 change. The cash covered the bill, so the only question is whether each person put in what they owed. Work that out once, at the table, while the notes are still there.

The birthday. If the group is treating someone, split their share evenly between everyone else. Easiest is to leave them out of the split altogether.

The short version

Even split when orders are similar. By order when drinks or one big gap make it unfair. Shared plates go to whoever shared them, the tip follows each person’s subtotal, and whoever paid the card gets paid back before everyone goes home.