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Split household expenses by income

Enter what each person earns and the total of the shared expenses: the calculator shows each person’s percentage, what they put in every month and what is left of their income. Switch to equal parts to compare.

By income, both put in 48% of what they earn.

It works for a couple, for roommates or for a family with more than one income: two to four people. Change the names and the figures; the result updates as you type and nothing is saved.

Calculator: split expenses by income

Who shares the expenses

Rent, power, groceries, internet: everything that belongs to the household.

How you split
Currency

It only changes how the figures are written: nothing is converted.

What each person puts in

Ana puts in 60% ($ 36,000) and Martín puts in 40% ($ 24,000).

  • Ana60%

    Puts in per month
    $ 36,000
    Left of their income
    $ 39,000
  • Martín40%

    Puts in per month
    $ 24,000
    Left of their income
    $ 26,000

If you already paid some of it this month

Enter what each person already paid of those expenses and you will see who owes how much to whom to come out even.

Together you paid $ 60,000. It is split with the same percentages.

  • Ana pays Martín $ 14,000

In Llegamos, the split is saved as the group’s agreement: equal parts or custom, with a percentage the app proposes from what each person earns. Every month it counts what each one paid and tells you who owes how much to whom. Each currency is settled on its own.

01

How to use the calculator

  1. Enter who shares and what each one earns

    Use take-home pay, not gross salary. If someone’s income varies, use an average of the last few months.

  2. Add up the shared expenses

    The monthly total of what belongs to the household: rent, building fees, utilities, internet, groceries.

  3. Choose how you split

    By income splits in proportion to what each one earns; equal parts gives everyone the same share. Switch between them to see what is left for each person.

  4. If someone already paid, enter it

    With what each person paid, the calculator tells you who pays whom to come out even, using the same percentages.

02

Proportional vs. equal split

Splitting by income means everyone puts in the same percentage of what they earn. If together you bring home $ 125,000 and one of you earns $ 75,000, that person brings 60% of the household’s money and pays 60% of the expenses. An equal split is simpler, but when incomes are far apart, the person who earns less ends up with much less to spare.

Example (Uruguayan pesos): Ana earns $ 75,000, Martín $ 50,000, shared expenses are $ 60,000
By income: Ana puts in (60%)
$ 36,000
By income: Martín puts in (40%)
$ 24,000
By income: left for each
$ 39,000 and $ 26,000
Equal parts: each puts in
$ 30,000
Equal parts: left for each
$ 45,000 and $ 20,000

By income, both spend 48% of what they earn on the household. In equal parts, Ana spends 40% and Martín 60%.

  • By income tends to feel fairer when incomes differ a lot and the expenses are equally everyone’s: rent, food, bills.
  • Equal parts works when you earn about the same, for roommates with separate finances, or when nobody wants to share their salary.
  • Custom: you can also agree on something else, say 55/45, because one person uses the car more. What matters is that you agree on it and revisit it when an income changes.

03

What counts as a shared expense

What usually goes into the total and what does not
KindExamples
Almost always sharedRent or mortgage, building fees, power, water, gas, internet, groceries, cleaning supplies
To agree onCar, pets, kids, going out together, holidays, streaming services
Almost always personalClothes, going out on your own, your own phone, debts from before, gifts

04

Expenses in more than one currency

Keep each currency separate. If rent is in dollars and the rest in pesos, run the calculator twice with the same percentages: once with the dollar total and once with the peso total, so nobody depends on the exchange rate used to add them up. If incomes are in different currencies, convert one at today’s rate only to work out the percentages. The currency selector only changes how figures are written; it converts nothing. Llegamos handles several currencies per group and settles each one on its own.

05

Keep the split going month after month

The calculator gives you the agreement; keeping it is the hard part. In Llegamos the split is saved as the group’s agreement, equal or with a percentage for each person that the app can propose from what each one earns. Everyone enters what they pay and Between you tells you who owes how much to whom, with one tap to mark it as paid back.

Frequently asked questions

Is it fairer to split by income or in equal parts?

It depends on how different your incomes are and what you agree on. By income, everyone spends the same share of what they earn on the household; in equal parts, whoever earns less keeps less. Try both in the calculator and compare what is left.

Should I use gross or take-home pay?

Take-home pay: it is the money that actually pays the bills. If an income varies, use an average.

What if one person has no income for a while?

Split by income, their share is zero. If you would rather they still put something in, pick equal parts or a custom percentage for that period.

Does the calculator store what I type?

No. Everything is worked out in your browser and nothing is sent anywhere; close the page and it is gone.

Does it work for more than two people?

Yes, up to four in the calculator. A Llegamos group can have as many people as you want, on the free plan too.

Keep reading

  • Shared expensesOne home, several people: each one records what they pay and the app says who owes whom.
  • Monthly savings calculatorHow much to put away each month to have the money for a bill, a trip or any goal on time.
  • Multiple currenciesEvery amount in its own currency, one account per currency, and an optional estimate of it all together.