Group trips
How do you split costs on a group trip?
Assign one payer per category — one person books the house, another covers the big dinner, a third handles the rental car — and settle up once at the end. Record who paid for what as it happens, in something everyone can see. Reconstructing three days of receipts after the trip is where groups fall out.
Splitting every expense in the moment produces a long tail of small transfers that nobody completes. Splitting by category produces four or five numbers, which one settlement resolves. Use a dedicated expense-splitting app for the arithmetic; that's a solved problem and worth using a tool built for it.
The part that goes wrong is the record, rather than the maths. Somebody covers three taxis and a bar tab, mentions it in a chat that scrolls away, and it never makes the final tally. Writing it down at the time is the whole discipline.
Keeping the bookings themselves visible on the trip plan helps for a different reason: when everyone can see that the house is reserved and what it cost, the question stops being asked. Arriv holds reservations against the day they belong to, and Pro can pull confirmation details in from email, though the settlement itself is better handled by an app made for it.
Do it in Arriv
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