How to Split a Bill
To split a bill evenly, add the tip to the total and divide by the number of people. That is the fastest way, but it is not always the fairest. If one person ordered a salad and another ordered steak and three drinks, an even split means the light eater pays for someone else’s dinner.
This guide shows how to split a bill six different ways, from a quick even split to sharing rent by room size and settling up after a group trip, with the numbers worked out for each.
Which Method Should You Use?
| Situation | Fairest method |
| Everyone ordered about the same | Split evenly |
| Orders were very different | Split by what each person ordered |
| Some dishes were shared | Split shared items, then add each person’s own |
| Not everyone drank | Split drinks only between the drinkers |
| Rent or household bills | Split by room size or by income |
| Group trip with several payers | Track who paid what, then settle up |
1. Split the Bill Evenly
Use this when everyone ordered roughly the same amount.
- Take the total, including tax.
- Add the tip.
- Divide by the number of people.
Example: four friends have a $148 bill and want to leave an 18% tip. Tip = 148 × 0.18 = $26.64. Total = $174.64. Each person pays 174.64 ÷ 4 = $43.66.
Round up to make paying easier. If everyone pays $44, the total is $176, and the tip becomes $28, about 18.9%. The tip calculator does this in one step. Enter the bill, the tip and the number of people, then tick the round-up box.
2. Split by What Each Person Ordered
This is the fairest method when orders are very different. Each person pays for their own food, plus a share of the tax and tip that matches what they ordered.
- Add up each person’s items from the receipt, before tax and tip.
- Add the tax and tip together.
- Divide that by the subtotal to get the “extras” rate.
- Multiply each person’s items by 1 plus that rate.
Example: the subtotal is $120. Tax is $9.60 and the group leaves a 20% tip on the food, which is $24.
- Extras: 9.60 + 24 = $33.60
- Extras rate: 33.60 ÷ 120 = 0.28, so everyone adds 28% to their own items
- Alex ordered $50: 50 × 1.28 = $64.00
- Ben ordered $40: 40 × 1.28 = $51.20
- Cara ordered $30: 30 × 1.28 = $38.40
Check: 64 + 51.20 + 38.40 = $153.60, which is the full bill with tax and tip.
This way, tax and tip are shared in proportion, so nobody pays tip on someone else’s steak.
3. Split Shared Dishes First
When the table shares starters or a bottle of wine, split those evenly between the people who had them, then add each person’s own items.
Example: three friends share a $18 starter, which is $6 each. Then each adds their own main course, and you apply the extras rate from Method 2 to each person’s total.
4. Split Drinks Only Between the Drinkers
If some people did not drink, take the drinks off the bill first.
Example: a $210 bill includes $60 of drinks shared by three of the five people.
- Drinks: 60 ÷ 3 = $20 each for the three drinkers
- Food: 150 ÷ 5 = $30 each for everyone
- Drinkers pay $50 each and non-drinkers pay $30 each, before tax and tip
Then add tax and tip to each share at the same rate, as in Method 2.
5. Split Rent and Household Bills
By Room Size
When bedrooms are different sizes, splitting rent by floor area is fairer than an even split.
Example: rent is $2,400 a month. The bedrooms are 150, 120 and 90 sq ft, a total of 360 sq ft.
- 150 ÷ 360 × 2,400 = $1,000
- 120 ÷ 360 × 2,400 = $800
- 90 ÷ 360 × 2,400 = $600
Everyone shares the kitchen and living room equally, though. A popular middle ground is to split half the rent evenly and half by room size:
- Even half: $1,200 ÷ 3 = $400 each
- Room-size half: $500, $400 and $300
- Totals: $900, $800 and $700
You can also add a little to the share of a room with a private bathroom or a balcony. Agree the rule before anyone signs the lease.
By Income
Couples and partners often split shared costs by income instead of 50/50.
Example: one partner earns $60,000 a year and the other earns $40,000. Together that is $100,000, so they pay 60% and 40%. On $3,000 of shared monthly costs, that is $1,800 and $1,200.
Utilities and Subscriptions
Electricity, internet and streaming services are usually split evenly, since everyone uses them. If one person works from home all day or runs a heater constantly, the group may agree a larger share for them.
6. Settle Up After a Group Trip
On trips, different people pay for different things. The easiest way to settle is to work out what each person owes in total, then see who paid more or less than that.
Example: three friends go away for the weekend.
- Alex paid the hotel: $300
- Ben paid for food: $120
- Cara paid for fuel: $60
Total = $480, so each person’s fair share is 480 ÷ 3 = $160.
| Person | Paid | Fair share | Balance |
| Alex | $300 | $160 | Owed $140 |
| Ben | $120 | $160 | Owes $40 |
| Cara | $60 | $160 | Owes $100 |
So Ben pays Alex $40 and Cara pays Alex $100. Two payments settle everything, instead of everyone paying everyone.
For longer trips, a shared expense app such as Splitwise or Tricount keeps a running total, so nobody has to remember who paid for what.
Tips for Splitting a Bill Without Awkwardness
- Agree before you order. “Are we splitting evenly or paying for our own?” is easier to ask at the start than at the end.
- Ask for separate checks early. Many restaurants can split the bill if you ask when ordering, but not always after.
- Photograph the receipt. It makes splitting by item much easier once you are home.
- Tip on the full amount. If someone uses a voucher or a discount, the tip is usually based on the price before the discount.
- Round to the nearest dollar. Small rounding differences are easier to settle than exact cents, as long as the total still covers the bill.
- Settle up quickly. Sending payment the same day keeps things friendly.
Frequently Asked Questions
What is the fairest way to split a bill?
Paying for what you ordered, with tax and tip shared in proportion, is the fairest. An even split is fine when everyone ordered about the same, and it is much quicker.
How do you split a bill with tax and tip?
Add the tax and tip together and divide by the subtotal to get a percentage. Then add that percentage to each person’s own items. In the example above, that was 28%.
How do you split a bill unevenly?
Work out each person’s share of the subtotal first, then apply the same tax-and-tip rate to everyone. You can also split shared items evenly between the people who had them before adding each person’s own items.
How do roommates split rent fairly?
The most common methods are an even split, a split by bedroom size, or a mix of both, such as half evenly and half by room size. Whatever you choose, agree it in writing before you move in.
Do the Sums Faster
For restaurant bills, the tip calculator works out the tip, total and each person’s share at once. For percentage shares, such as a split by income, use the percentage calculator. For more real-life sums like these, see our everyday math examples, or browse all everyday calculators.