The shared kitty that keeps every expense straight
Trips, shared flats, bachelor parties: someone always fronts the cost. La Caisse weights expenses by household size and, at the end, only names payments between the people who actually shared something.
Free · no sign-up · no fee on your money
- “Who paid for the big grocery run again?” — receipts in a glovebox, screenshots in the group chat, three different memories of who paid.
- Settling up after every single outing. Dozens of tiny transfers and constant mental math — when most of it would even out on its own.
- The mood turns on the last night. Someone does the maths and feels like they carried far more than everyone else.
- Set up a kitty
Name the kitty and list the households or people splitting the cost — with an adult and optional child factor. Two minutes, no sign-up.
- Share the link
One single link for everyone involved — in a group chat or a message. Whoever has it can see the kitty and add expenses.
- Everyone logs their own spending
Whoever pays logs the amount and type of expense right after — from their own phone, in the moment.
- See the final split
Used versus paid, per household — and a suggestion for who owes whom. With a full breakdown, receipt by receipt.
Unlike the class-fund product, the shared kitty needs no separate per-household links: everyone opens the same link, sees the same balance, and logs their own expenses.
Every settlement line can be expanded: receipt by receipt, who paid what and when. Nobody has to just take the total on trust.
How does the final settlement work?
For each household, what they used is compared against what they paid. From the difference, the kitty suggests transfers — only between households that actually shared an expense together. Households that never shared anything won't get a suggested payment between them; that occasionally means one extra transfer, but every line stays traceable.
What does it cost?
Nothing. The shared kitty is free, no sign-up required, and money never runs through La Caisse — you settle up directly between yourselves.
Does everyone need to sign up?
No. The link is the access. No account, no password, no email address — none is stored either.
How are different household sizes or children handled?
Each household enters its number of adults, plus children with their own factor — commonly half for school-age kids, none for toddlers. For an expense that only concerns some of you — a dinner with alcohol, say — you can adjust the split for just that one expense without touching the rest.
How long does a kitty stay available?
Two years from the last visit — and that period renews every time it's opened. A kitty that's in use never expires.
What is the shared kitty meant for?
Anything where several households or people pay for shared things and want to settle up at the end: a trip with friends or family, shared flat expenses, a bachelor/bachelorette party, a barbecue. If instead you need a fixed contribution collected into one pot — a class trip, daycare, a club — La Caisse's other product, the class-fund model, fits better (currently German-language only).
Two minutes to set up, and “who owes whom?” is answered before anyone has to ask.