Agree the rule before the first bill
The fairest split is one people understand before they commit. Some costs belong to the whole group. Others belong to the people staying in an apartment, taking a transfer or joining a meal. Start by agreeing that a shared holiday does not automatically make every purchase a shared expense.
For each bill, make four things clear: what it was for, who paid, how much they paid and who is sharing it. A note saying “stuff for the trip” is hard to check weeks later. “Groceries for Saturday dinner, eight people” gives everybody a useful explanation.
Only count money that’s actually been paid
Imagine an apartment costs £2,400 for four people. Alex pays a £600 deposit. The amount paid so far is £600, which works out at £150 per guest. Alex has covered their own £150 as well as the other three guests’ shares. Those three each owe Alex £150.
The remaining £1,800 is still due. If Emma pays the rest later, add her £1,800 payment separately. Each of the four guests has a £450 share of it. What everyone owes can then be worked out using both payments. Don’t count the full £2,400 as paid and then add the deposit on top.
Our accommodation and deposits guide explains what to keep with the booking. The budget guide helps you plan for bills still to come, as well as money already spent.
Split smaller-group costs with the smaller group
If four of eight travellers take a taxi, include those four. If two apartments have different prices, split each apartment with its own guests according to the arrangement they agreed. Do not rely on one default “everyone” list for the entire holiday.
People who leave a plan early or stay fewer nights can make an equal split less obvious. Agree a specific arrangement before the payment where possible. A visible explanation is better than an unexplained adjustment after the trip.
Paid in euros, splitting in pounds?
Say Emma pays €100 for lunch, but the group is keeping track in pounds. If each euro works out at £0.8633, that lunch comes to £86.33. We’re using a made-up exchange rate here to show the calculation. Keep the €100 on the bill as well as the amount in pounds, so everyone can follow the calculation.
The penny matters: four equal shares of £86.33 cannot all be exactly equal to the penny. Three can be £21.58 and one £21.59. Together, the four shares still need to come to £86.33.
In Pistio., enter the amount on the bill and choose the currency you paid in. The app works out the amount in your group’s currency using an independent exchange rate. If you’re offline, it can use a rate saved while you were connected. The date is shown, and later rate changes don’t alter a bill you’ve already saved. Your card may charge a different amount or add a fee; that doesn’t quietly become everyone else’s bill.
Separate repayments from new spending
Paying a friend back changes what you owe them. It doesn’t make the holiday more expensive. When James sends Alex the £150 he owes for the deposit, mark that amount as paid back. Adding “deposit repayment” as another apartment expense would inflate total trip spending.
Keep corrections equally clear. If you entered the wrong amount or included the wrong person, correct that bill. Don’t add another expense just to make the totals look right. If a deposit is already included in the shared costs, don’t add it again as a separate bill.
Check the bills before the goodbyes
Before everybody settles up, check what’s been paid and what’s still due. Make sure meals are split between the people who ate them, and that money already paid back has been taken off what people owe. Ask whether anybody still has bills to add, including ones saved while they were offline.
It’s much easier to settle up when everybody can see how you got to the final amounts. Pair this process with the shared itinerary and guest lists, so it is easier to remember who joined what. Pistio. works out what people owe. You pay each other directly outside the app.