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Calculator to split expenses with different salaries

When you earn different amounts, splitting down the middle is not the same as each paying the same percentage of their salary. Enter what each person earns and the expense: we show what each one pays and what share of their income it takes.

Your numbers

Read as €1,225.00 The rent, the electricity bill, the weekly shop…
Read as €3,000.00
Read as €1,700.00

Enter what each person earns over the same period as the expense: if the expense covers a month, use monthly salaries. And the same kind of figure for everyone: all take-home pay, or all gross.

Leave someone blank and that person pays nothing in the income-based split.

With JavaScript enabled the result updates as you type.

What each person pays

You are looking at an example: a rent of €1,225.00 between two people earning €3,000.00 and €1,700.00. Change the numbers to see your own split.

Each person pays 26.1% of what they earn That is what makes the split fair: the amounts differ, but the effort is the same for everyone. Create a free account

Person Income Based on income Split evenly Difference
Person 1 €3,000.00 €781.91 63.8% of the expense 26.1% of their income €612.5020.4% of their income pays €169.41 more
Person 2 €1,700.00 €443.09 36.2% of the expense 26.1% of their income €612.5036.0% of their income pays €169.41 less
Total €4,700.00 €1,225.00 €1,225.00

Person 1

Income
€3,000.00
Based on income
€781.91 63.8% of the expense 26.1% of their income
Split evenly
€612.50 20.4% of their income
Difference
pays €169.41 more

Person 2

Income
€1,700.00
Based on income
€443.09 36.2% of the expense 26.1% of their income
Split evenly
€612.50 36.0% of their income
Difference
pays €169.41 less

If the salaries are similar, splitting evenly works fine. If there is a big gap and it is a fixed expense such as the rent, the income-based split is what people usually go for.

Both columns add up to exactly €1,225.00: the cents that do not divide evenly are handed out one by one, so nothing is left over or missing.

Half each, or by salary

When two people earn different amounts, paying half each does not mean the same effort: for whoever earns less, half the rent takes a far bigger share of their salary. Splitting in proportion to income leaves both paying the same percentage of what they earn — different amounts, equal effort.

There is no single fair answer: it is a conversation, and this calculator is here so you can have it with the numbers on the table. That is why it shows both figures at once.

What this calculator does and does not do

  • It splits an expense between 2 and 8 people, by income or evenly, and shows you the difference.
  • We store nothing: the figures never reach a database and are not passed on to anyone. They travel inside the address of this page, so you can copy the link and send the calculation to the other person, or delete it from your history if you would rather it did not stay there.
  • It asks for no account and no email address. The result is fully visible from the start.
  • There is nothing to install: it runs in the browser, on mobile too.

Frequently asked questions

How do I work out paying the same percentage as my partner?

You add up both salaries and each person pays the share of the expense that matches their weight in that total. With €3,000.00 and €1,700.00 and an expense of €1,225.00, that comes to €781.91 and €443.09: both pay 26.1% of what they earn.

Do we pay half each, or the share that matches our salaries?

It depends on what you agree. Down the middle, everyone pays the same in euros; by income, everyone pays the same percentage of what they earn, which is usually what people are after when salaries differ a lot. The calculator shows both figures at once, and the gap between them, so the decision is made looking at it.

Do I enter the monthly or the yearly salary?

The same period as the expense. For the split in euros it makes no difference (45,000 € and 37,000 € a year split exactly like 3,750 € and 3,083 € a month), but the percentage at the top does depend on it: with yearly salaries and one month of rent you will get a percentage twelve times smaller. If the expense is monthly, divide the yearly salary by twelve.

Can I split an expense between more than two people?

Yes, up to 8 people: a flat share, a trip or a household with several people in it. Each one enters their income and the calculator splits the expense between all of them.

Do I need to sign up or install an app?

No. The calculator runs in the browser, with no account, no email address and nothing to install, and it does not store the figures you type. Only if you want to keep track of your shared expenses month after month will you need an account.

That was a one-off calculation. What about next month?

The calculator remembers nothing. The app does: