One person had a burger and two iced teas. Another had pad thai. Two of you shared a dessert, and everyone picked at the dumplings. Now there's one bill and three different answers to "what do I owe?"
When orders differ, the fair answer is an itemized split: everyone pays for what they had. This guide shows exactly how to do it, including the parts that usually cause arguments: shared dishes and items ordered in different quantities.
The method in four steps
- Assign every line on the receipt. Each item belongs to one person, or is shared by specific people.
- Divide shared items among the people who shared them, equally or by portion.
- Add up each person's food total. Check that the totals add up to the receipt's subtotal.
- Add tax and tip in proportion to each person's food total, then round so the shares add up to the bill exactly.
Worked example: three friends, five lines on the receipt
A, B and C have lunch. The receipt looks like this:
| Line on the receipt | Price | Who had it |
|---|---|---|
| 2 × burger ($15 each) | $30.00 | A one, B one |
| 3 × iced tea ($3 each) | $9.00 | A two, C one |
| Pad thai | $17.00 | C |
| Dumplings | $9.00 | Shared by all three |
| Dessert | $8.00 | Shared by B and C |
| Subtotal | $73.00 |
Tax is 10% ($7.30) and the group tips 15% of the subtotal ($10.95). The total is $91.25.
Step 1 and 2: assign items and divide what was shared
Lines with a quantity are the ones people get wrong. "3 × iced tea, $9" is three drinks at $3, and A had two of them. So A owes $6 for iced tea, not a third of $9. Divide by quantity, not by person.
- Burgers: $30 for two, so $15 each for A and B.
- Iced tea: $3 each, so A pays $6 (two) and C pays $3 (one).
- Dumplings: $9 shared by three, so $3 each.
- Dessert: $8 shared by two, so $4 each for B and C.
Step 3: each person's food total
| Person | Items | Food total |
|---|---|---|
| A | Burger $15 + 2 iced teas $6 + dumplings $3 | $24.00 |
| B | Burger $15 + dumplings $3 + dessert $4 | $22.00 |
| C | Iced tea $3 + pad thai $17 + dumplings $3 + dessert $4 | $27.00 |
| Check | Must equal the receipt subtotal | $73.00 ✓ |
That check is the most useful habit in bill splitting. If the food totals don't add up to the subtotal, an item is missing or counted twice. Find it now, before anyone pays.
Step 4: add tax and tip in proportion
Tax plus tip is $18.25, which is 25% of the $73 subtotal. So each person pays their food total × 1.25:
| Person | Food | Tax (10%) | Tip (15%) | Pays |
|---|---|---|---|---|
| A | $24.00 | $2.40 | $3.60 | $30.00 |
| B | $22.00 | $2.20 | $3.30 | $27.50 |
| C | $27.00 | $2.70 | $4.05 | $33.75 |
| Total | $73.00 | $7.30 | $10.95 | $91.25 |
An equal split would have been $30.42 each. That's close for A, but B would overpay by nearly $3 and C would underpay by over $3. Small amounts, but exactly the kind that make an itemized split feel fairer.
The "multiplier" shortcut
You don't need to calculate tax and tip separately for each person. Divide the final total by the subtotal once:
multiplier = total ÷ subtotal = $91.25 ÷ $73.00 = 1.25
Then multiply each person's food total by it. This works for any combination of tax, tip and service charge, as long as they're all shared in proportion to what people ordered. It also works when the receipt shows a discount: the multiplier simply comes out a bit lower.
Handling quantities that don't split evenly
Sometimes a shared item isn't shared equally. Two people share a large pizza, but one has five of the eight slices. Split it by portion: five-eighths and three-eighths of the price. The same goes for a bottle of wine where one person had one glass and another had three. Portion weights are fairer than "half each", and easy to apply once you think of them as quantities. How to split shared food and drinks covers more of these cases.
Rounding without losing cents
Proportional shares often come out to fractions of a cent. Round each person's amount down to the cent, then hand out the leftover cents one at a time, starting with whoever has the largest dropped fraction. That way the shares always add up to the bill exactly and nobody is out of pocket by more than a cent. A good bill splitter uses this "largest remainder" method automatically.
Common situations
Someone ordered only a drink
They pay for the drink plus its share of tax and tip. With the multiplier above, a $4 coffee costs them $5.00.
Someone arrived after the starters
Leave them out of the shared starters. Assign the starters only to the people who ate them.
Two people want to pay as a couple
Treat them as one person in the split, or split normally and add their two totals together at the end. The result is the same.
Frequently asked questions
How do you split a bill when people ordered different amounts?
Give each person the items they ordered, divide shared dishes among the people who shared them, then add tax and tip in proportion to each person's food total.
Do I split tax and tip equally if we itemize?
No. When you itemize, tax and tip should follow the food: someone who ordered twice as much pays twice as much tax and tip.
What if an item has a quantity, like "3 × iced tea"?
Divide the line by its quantity to get the price per item, then charge each person for the number they had.
How do I check that I haven't missed anything?
Add up everyone's food totals. They must equal the receipt's subtotal before tax and tip.
How to Split a Restaurant Bill Fairly