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Split office lunches fairly

The fairest way to split office lunch orders is by item, with tax and tip shared in proportion to what each person ordered. Track the week in one group and the person who paid least picks up next.

Updated November 2026

Office lunches often run on goodwill. Someone puts the group order on their card, someone else grabs coffees, and the money mostly evens out. Except when it does not, and the same person ends up covering the team every week. A shared group keeps it fair without anyone having to chase colleagues.

Worked example: one week, four colleagues

Maya, Ben, Carlos and Hannah order lunch together. Monday and Wednesday orders are split equally. On Friday everyone ordered different things, so Carlos split it by item, with tax and tip shared in proportion to what each person ordered.

Friday's order, split by item

Maya $14, Ben $18, Carlos $12, Hannah $16. Subtotal $60. Tax was $5.40 and they tipped 20%, which is $12. Total $77.40. Tax and tip together add 29% to each order ($17.40 ÷ $60), so each person pays 1.29 times their own subtotal:

Maya: $14 × 1.29 = $18.06
Ben: $18 × 1.29 = $23.22
Carlos: $12 × 1.29 = $15.48
Hannah: $16 × 1.29 = $20.64

Those add up to $77.40, the full bill.

The whole week

Expense	Paid by	Amount	Split between
Monday lunch	Maya	$64	All 4 equally ($16 each)
Wednesday lunch	Ben	$72	All 4 equally ($18 each)
Friday lunch	Carlos	$77.40	By item, as above
Coffee run	Hannah	$20	All 4 equally ($5 each)
Total		$233.40

Person	Paid	Fair share	Balance
Maya	$64	$57.06	+$6.94
Ben	$72	$62.22	+$9.78
Carlos	$77.40	$54.48	+$22.92
Hannah	$20	$59.64	−$39.64

A plus balance means the group owes you. A minus balance means you owe the group.

Hannah only paid for coffee, so she owes $39.64. Maya, Ben and Carlos are owed $6.94, $9.78 and $22.92, which add up to $39.64. Three payments clear the week:

Hannah pays Maya $6.94
Hannah pays Ben $9.78
Hannah pays Carlos $22.92

Or, simpler still, Hannah buys next Monday's lunch and the balances shrink on their own.

Why by-item splitting matters at work

Equal splits are fine among friends who order similar things. At work, one person gets a salad and another gets a steak sandwich and two sides. Splitting by item, with tax and tip spread in proportion, means everyone pays for what they ate, and nobody has to bring it up.

How to set it up in SplitSimple

Create a team lunch group. Set the currency your office uses.
Invite colleagues by link. Post it in your team channel. It works in the browser, so nobody needs to install anything.
Log each order. Use equal splits for shared platters and by-item splits for individual orders. Add tax and tip, and they are spread in proportion to each order.
Rotate who pays. Check balances and let the person with the biggest negative balance pay next time.
Settle when someone leaves the team. Settle up shows the fewest payments needed to clear it.

Tips for office lunches

Leave people out of orders they did not join. Nobody should pay for a lunch they skipped.
Keep work and personal groups separate. Team lunches should not mix with weekend plans.
If the company reimburses some lunches, keep those out of the group. Only track what colleagues pay each other.
For a leaving gift or a birthday cake, add it as an expense and leave the guest of honour out of the split.

FAQ

How do you split a group lunch order fairly?

Split by item: each person pays for what they ordered, plus a share of tax and tip in proportion to their order. Use an equal split only for shared dishes.

Should the tip be split equally or proportionally?

Proportionally is fairer when orders differ a lot, because the tip is a percentage of the bill. See our guide on splitting a bill with tip and tax for a full comparison.

Do colleagues need to install an app?

No. SplitSimple works in the browser, and there is an Android app. The iPhone app is coming soon.

Track it with your group

SplitSimple is free: add expenses, see who owes whom, and settle up with the fewest payments.

Start a group, free