Splitting fairly

How to split a restaurant bill (including tip, tax, and the wine)

6 min readFamZam

Short answer

Split a restaurant bill evenly when everyone ordered roughly the same — if the gap between the largest and smallest order is under about 15%, itemising costs the table more goodwill than it saves anyone money. When the gap is genuinely large, split by what each person ordered and share tip and tax in proportion to those amounts rather than evenly. The one exception worth making every time: pull alcohol out as its own line and split it between the people who drank it.

Key points

  • Under ~15% variance: split evenly. Over it: itemise.
  • Tip and tax follow the food. Splitting them evenly on top of uneven food is the common mistake.
  • Alcohol is the single biggest source of quiet resentment. Separate it.
  • Check for a service charge already on the bill before adding a tip.
  • Decide the method before ordering, not while the card machine is waiting.

Even or itemised?

Use the 15% rule. Glance at the bill: if the most expensive order is less than about 15% above the cheapest, split evenly. At a £30-a-head dinner that is a £4 difference, and the four minutes and mild tension of itemising are worth more than £4 to almost everyone at the table. Above that, itemise — a £48 steak next to a £14 pasta is not a rounding error, and pretending otherwise is how people quietly stop coming to dinners.

The drinks problem

The most reliable source of unspoken irritation at a shared table. Three bottles of wine at £38 each add £114 to a bill. Split evenly across eight people, the two who drank water contribute £14.25 each to alcohol they did not touch.

The fix takes twenty seconds: split the food evenly, then split the drinks between the drinkers only. You do not have to itemise the whole meal to fix the one line that is actually skewed. Do it without being asked — the person who does not drink usually will not raise it, and will notice every time.

Tip and tax: the mistake nearly everyone makes

When you itemise the food but split the tip and tax evenly, you undo most of what itemising achieved.

Two people, £100 of food, 20% tip — who pays what
OrderedEven tip splitProportional tip split
Person A£70£80.00£84.00
Person B£30£40.00£36.00

£4 on a £100 bill; £20 on a £500 one. Tip and tax should ride along in proportion to what each person ordered, because both are calculated as a percentage of the food in the first place. A calculator set to "by what they ordered" does this automatically.

Tip before or after tax?

Convention is to tip on the pre-tax subtotal, and that is what most calculators do. Tipping on the post-tax total is more generous and adds roughly the tax rate multiplied by the tip rate — cents per person. Not worth a discussion in either direction.

Check for a service charge first

In the UK, much of Europe, and increasingly elsewhere, a 12.5% service charge is often already on the bill. Read the bill before anyone reaches for a tip figure. Tipping on top of an included service charge is a 25% tip, which is fine if intended and irritating if accidental.

Split your bill now

Restaurant bill split calculator

Split a restaurant check with tip and tax, evenly or by what each person actually ordered.

Split

Everyone pays the same.

People (4)
Each person pays

Enter a check total (before tip) to see the split.

  • Person 1$0.00
  • Person 2$0.00
  • Person 3$0.00
  • Person 4$0.00
Check total (before tip)
$0.00
Total
$0.00

Eat out with this group often?

FamZam keeps a running tab across every dinner, so nobody has to remember who covered the last one. Free, no ads, no subscription.

The awkward situations

  • Someone arrived after the starters. Give them a partial share — 0.7 is a normal landing point — or itemise just their part. Do not make them pay for food that was eaten before they arrived.
  • One person ordered for the table. Sharing plates are genuinely shared. Split those evenly and itemise only the individual orders.
  • Someone forgot their wallet. Cover it and log it. This is exactly what a running balance is for, and it removes the need for anyone to remember.
  • The restaurant will not split the payment. Increasingly common. One person pays the whole bill and everyone transfers their share within the hour — while they still remember, not "later".
  • Someone is quietly short of money. Suggest splitting evenly rather than itemising, and let the more expensive orders carry it without commentary. It is the one situation where the less precise method is the kinder one.
  • It is someone’s birthday. Say before ordering that the table is covering them, so they can order without doing arithmetic. Split their share across everyone else evenly.

The etiquette that actually saves time

  1. 01Decide the method before you order, not after. "Shall we just split it evenly?" at the start changes what people order and removes the entire negotiation at the end. Asked afterwards, it is a request to subsidise someone.
  2. 02One person pays, everyone transfers. Faster than eight card taps, and it lets one person handle the tip cleanly.
  3. 03Transfer immediately, at the table. The single largest cause of unsettled debts is intending to pay later.
  4. 04Do not audit a small difference in public. If someone under-transfers by £3, let it go or mention it privately. The table is not the venue.
  5. 05Round up, not down. If the split leaves an odd amount, the person paying the bill should not be the one absorbing it.

Frequently asked questions

Should you split a restaurant bill evenly or by what you ordered?

Split evenly when the most expensive order is within about 15% of the cheapest — the difference is small enough that itemising costs the table more goodwill than it saves. Itemise when the gap is genuinely large, and always pull alcohol out separately regardless of how the food is split.

How do you split the tip when everyone ordered different amounts?

In proportion to what each person ordered, not evenly. Tip is calculated as a percentage of the food, so splitting it evenly on top of an itemised bill undoes most of the fairness itemising was meant to achieve. On a £500 bill the difference is around £20.

How do you split a bill when someone does not drink?

Split the food evenly and split the drinks only between the people who drank them. Three bottles of wine on an eight-person bill adds about £14 per head to people who had water. It takes twenty seconds to fix, and the person who does not drink usually will not ask.

Do you tip before or after tax?

The convention is to tip on the pre-tax subtotal. Tipping on the post-tax total is slightly more generous and adds roughly the tax rate times the tip rate — usually a few cents per person. Either is acceptable and not worth debating at the table.

Should you tip on top of a service charge?

Usually not. In the UK and much of Europe a service charge of around 12.5% is often already on the bill. Read the bill before anyone suggests a tip figure — adding a full tip on top of an included service charge amounts to roughly 25%.

When should you agree how to split the bill?

Before ordering. Asking "shall we just split evenly?" at the start lets people order accordingly and removes the negotiation entirely. Asking after the food arrives is effectively asking people to subsidise an order they did not know about.