# Couples: track shared money without a joint account

Plenty of couples never open a joint account. Some prefer to keep their money separate, some are not there yet, and some simply find the paperwork not worth it. The shared expenses happen anyway: rent, groceries, a holiday, the vet. The question is how to keep track of them without merging your finances.

## Decide what counts as shared

Before any tool, agree on what is shared and what is not. Most couples land on one of these:

- **Only the common costs are shared.** Rent, bills and groceries go in the shared record; personal spending stays out.
- **Everything is visible.** Both of you record all your spending, which makes budgeting together easier but asks for more trust and more discipline.
- **A mix.** Common costs are shared, and each of you adds anything else that affects both of you, such as a big purchase.

There is no right answer. What matters is that you both know which one you picked.

## Keep your own accounts, share the record

You do not need to share an account to share a record of your money. Each of you keeps paying from your own card or bank account, and every shared expense gets written down in one place you both see.

That record should say:

- **what** it was and how much it cost;
- **which account** it was paid from, so you know whose money it was;
- **when** it happened;
- **what it was for**, with a tag such as "the flat" or "the trip".

Over a month, this tells you what your life together actually costs, and how it is paid for, without anyone moving money around.

## Look at it together, regularly

A shared record only helps if you both look at it. A short check once a week or once a month is enough:

- Did anything unexpected come up?
- Is one of you paying for much more of the shared costs than you agreed?
- Is there something coming up, like a trip or a move, worth putting money aside for?

Keep it short and factual. The point of writing things down is that neither of you has to remember or guess.

## When the money is in more than one currency

Many couples earn or save in two currencies, or share expenses across a border. Keep each currency's balance separate instead of converting everything into one, and store the exchange rate of the day with each movement. We wrote more about this in [how to keep track of shared money in two currencies](https://contamos.xyz/en/blog/shared-money-in-two-currencies).

## Frequently asked questions

### Should couples split everything 50/50?

Not necessarily. Many couples split shared costs in proportion to income, so each person keeps a similar amount for themselves. Either works if you both agree on it.

### Do we need a joint account at some point?

No. A joint account is convenient for paying shared bills, but you can track shared money perfectly well from separate accounts.

### How often should we look at the numbers?

Once a month is enough for most couples. A short, regular look beats a long one when something has already gone wrong.

## Doing it in Contamos

[Contamos](https://contamos.xyz/en) is a shared ledger for any group that shares money, couples included. You create a team, invite your partner, and add the accounts you each pay from. Then:

- both of you record income, expenses and transfers in one place, and see [who recorded what](https://contamos.xyz/en/docs/members-and-roles);
- each account keeps [its own currencies and balances](https://contamos.xyz/en/docs/accounts-and-currencies);
- [tags](https://contamos.xyz/en/docs/tags) group spending by what it was for, across categories;
- you can connect [an AI assistant](https://contamos.xyz/en/docs/ai-assistants) and just tell it "we spent 40 on groceries from my card".

Contamos does not connect to your bank or move money, and it does not work out who owes whom: it keeps an honest record of what you both enter. It is free to start, and the [quickstart](https://contamos.xyz/en/docs/quickstart) takes a few minutes.