# Split bills with your flatmates without a spreadsheet

> Log shared costs, split them equally, by percentage, by shares or exact amounts, and see who owes whom. Settle up with fewer payments. Free.

Updated: 2026-10-09

Log what you paid, choose how to split it, and Flatsby keeps a running balance for everyone in the household.

## Four ways to split

Each expense keeps its own split, so a 60/40 rent payment and a 50/50 grocery run can sit side by side in the same balance.

- Equally between everyone, or between the people you pick.
- By percentage, for example rent split 60/40 by room size.
- By shares, for example 2 parts to 1 when one person uses twice as much.
- By exact amounts, when each person owes a specific sum.

![Splitting an expense between flatmates on iPhone](https://raw.githubusercontent.com/RaphaelMitas/flatsby/assets/ios/04-expense-split.png)

## Balances and settling up

Flatsby shows what each person owes or is owed. It simplifies the debts, so the household needs fewer payments to get back to zero.

When someone pays a flatmate back, record it as a settlement and both balances update.

![List of shared expenses with who paid and how it was split](https://raw.githubusercontent.com/RaphaelMitas/flatsby/assets/web/web-expenses.png)

## Currencies and categories

Expenses can be in EUR, USD or GBP. Flatsby does not convert between currencies. It keeps a separate balance per currency instead.

Every expense has a category, such as groceries, internet or home goods, so you can see where the money goes.

## Rent and other recurring costs

There are no recurring expenses yet. Add rent as a new expense each month.

## Questions

### Can I move my expenses over from Splitwise?

Yes. Export your group from Splitwise as CSV, then upload it under Group settings, Import expenses. You pick the currency and match Splitwise names to your flatmates. Each expense keeps the exact amount every person owed, so percentage splits arrive as amounts. Rows in other currencies or with several payers are skipped, and the preview lists them first.

### How does Flatsby split an expense?

Equally, by percentage, by shares (for example 2 parts to 1), or by exact amounts per person. Expenses can be in EUR, USD or GBP, and Flatsby keeps a running balance per person for each currency.

### Can I set up rent as a recurring expense?

Not yet. Add rent as a new expense each month. Each expense keeps its own split, so a 60/40 rent split and a 50/50 grocery split can sit in the same balance.

## More about Flatsby

- [Home page](https://www.flatsby.com/index.md)
- [A shared shopping list the whole flat can use](https://www.flatsby.com/features/shopping-lists.md): One shopping list for the whole flat on web, iPhone and Android, sorted by category, with who added each item. Free.
- [Split bills with your flatmates without a spreadsheet](https://www.flatsby.com/features/expenses.md): Log shared costs, split them equally, by percentage, by shares or exact amounts, and see who owes whom. Settle up with fewer payments. Free.
- [Ask your household anything](https://www.flatsby.com/features/ai-assistant.md): Ask about your shared lists and expenses in plain language on the web. Get charts and tables, or have it add items and expenses for you.
- [A Splitwise alternative built for shared flats](https://www.flatsby.com/splitwise-alternative.md): Flatsby vs Splitwise: no daily expense limit, no ads, a shared shopping list built in, and a Splitwise CSV import. Plus where Splitwise is better.
- [Free for the whole household](https://www.flatsby.com/pricing.md): Shopping lists, expenses, settlements and groups are free with no member limit and no ads. Starter ($4.99) and Pro ($9.99) add AI credits.
- [Questions about Flatsby](https://www.flatsby.com/faq.md): Answers about Flatsby: price, Android and iPhone, splitting rent by percentage, moving from Splitwise, privacy and the AI assistant.