Joint, separate or a bit of both?

There's no single right way to share money as a couple. The options, the trade-offs, and how to choose together.

3 min read
A couple dropping coins into three glass jars, with a big shared jar marked with a heart in the middle

The short version

Money
  • There's no right answer. What matters is that you choose it together and it feels fair to you both.
  • All joint, all separate, and “yours, mine and ours” each work for different couples.
  • Agree how you'll split shared costs, keep some money each, and review it now and then.

Moving in, getting engaged, or just getting more serious often brings up the question: should we combine our money?

People have strong feelings about this, often for good reasons. Here's a calm way to work out what suits you.

The three common setups

All joint

Everything in one pot

Simple, and very “us”. Needs lots of trust and similar habits. Can feel restrictive if one of you values independence.

All separate

Each keeps their own

Plenty of independence and fewer daily debates. Shared bills need a system, and it can feel less like a team.

Yours, mine, ours

A shared pot plus your own

Shared costs come from a joint account, and each of you keeps some money of your own. Popular because it does a bit of both.

What one study found

In a recent experiment, Jenny Olson and colleagues randomly asked engaged and newly married couples to open a joint account, keep separate accounts, or do whatever they liked. Over two years, the couples with separate or self-chosen setups showed the usual small dip in relationship quality. The joint-account couples didn't.

Two bank cards, one lavender and one pink, leaning together
Two cards, one team.

It's one study, mostly of well-off couples, and it doesn't mean joint is right for everyone. But it hints that a shared pot can help couples feel like a team.

Splitting shared costs fairly

If you earn different amounts, fair doesn't always mean 50/50. A few options:

  • Half each. Simple, and works well when incomes are similar.
  • In proportion. Each puts in the same percentage of their income, so whoever earns more pays more.
  • Split by bill. One covers rent, the other covers food and utilities. Simple, but check it stays fair as prices change.

Talk about what fair means to each of you. For some people it's equal amounts. For others it's equal effort, or equal money left over.

Prepare privately first: your ideal, what you could live with, and what's a no. Then share why you want what you want before anyone suggests a solution. Most stalemates come from arguing about solutions before understanding each other's reasons.

Don't forget fun money

A party popper bursting with confetti and coins
Fun money: the best line in any budget.

Whatever setup you choose, most couples do better when each person has some money that's just theirs, no questions asked. It stops small purchases turning into debates, and keeps a bit of independence.

Choose together, then review

  1. 1

    Share your money stories

    Why does each option feel right or wrong to you? Our money talk guide has questions to start with.

  2. 2

    List your shared costs

    Rent or mortgage, bills, food, the car, holidays, pets.

  3. 3

    Pick a setup to try

    And agree how you'll split the shared costs.

  4. 4

    Agree your fun money

    An amount each, no reporting back.

  5. 5

    Review in three months

    What's working? What feels unfair? Adjust.

Sources and further reading

  • Olson, J. G., Rick, S. I., Small, D. A., & Finkel, E. J. (2023). Common cents: Bank account structure and couples' relationship dynamics. Journal of Consumer Research, 50(4), 704–721.

We describe these studies in our own words, and we're not affiliated with their authors. This article is general information, not therapy or professional advice.

Put it into practice, together.

Mon Ami turns ideas like these into small steps: a question a day, games and dates, and Ami to help you talk things through.

Download on the App Store

Start on your own. Invite your partner when you're ready.

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