How to split expenses as a couple

Money is one of the biggest sources of conflict in relationships, almost always because there's no clear agreement. These three methods help you split expenses fairly.

Iván Sevilla
Iván SevillaFounder of Neto
Updated 26 June 2026 2 min read
How to split expenses as a couple
THE ESSENTIALS

Pick a method (50/50, proportional to income, or separate accounts + shared pot), set clear rules, and review the numbers together once a month.

Method 1: split 50/50

Each person pays 50% of shared expenses. It's the simplest option and works well when incomes are similar. If one earns much less, it can feel unfair.

Method 2: proportional to income

Each person contributes a percentage based on what they earn. If you bring in 60% of the household income, you pay 60% of shared expenses. This is the fairest method when there's an income gap.

Method 3: separate accounts + a shared pot

You keep your own accounts and create a shared fund for common expenses (rent, food, bills). Each person pays their share into it every month. It gives independence and clarity at the same time.

The key: review it together every month

Whatever method you pick, sit down once a month to look at the numbers together. With Neto each partner can track their own spending and net worth privately, without connecting the bank.

Frequently asked questions

Which method is fairest?

Proportional to income is usually fairest when there's an income gap. If you earn similar amounts, 50/50 is simpler.

Is a shared account a good idea?

A shared pot for common expenses simplifies things and avoids arguments about who paid what. Combine it with separate accounts for personal spending.

How does Neto help couples?

Each partner tracks their own finances in Neto (spending, savings, net worth) privately, and you agree how to split shared costs with clear numbers in front of you.

Related: the 50/30/20 ruleexpense tracking in Netohow to budget on iPhone.

Start tracking your spendingDownload Neto

How to choose your method

There's no correct split, there's one that works for you. To decide:

  1. Put the numbers on the table. Without knowing what each of you earns, any split is guesswork.
  2. Choose based on the income gap. If you earn similar amounts, 50/50 works. If one earns considerably more, splitting proportionally stops the lower earner from living worse.
  3. Separate shared from personal. A joint account for shared costs and the rest kept separate removes half the arguments.
  4. Revisit it when things change. A raise, a period out of work or a move all change what a fair split looks like.

The method matters less than talking about it. Clear accounts don't prevent money problems, but they do prevent misunderstandings, which is most of them.

Iván Sevilla
WRITTEN BY
Iván Sevilla

Founder of Neto. Writes about expense tracking, net worth and investing from your phone, without connecting your bank.

Your money clear, without spreadsheets.

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This guide is general information and is not financial or investment advice.