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Fair contribution calculator

How much should each of you put toward the household? Enter both incomes, the shared monthly costs and your own committed costs, and compare what four ways of contributing leave each of you.

Incomes

Shared monthly costs

Everything the household pays together each month. The split calculator can add it up for you.

Example figures. Replace them with yours.

Each one's own committed costs

Optional: what each of you pays on your own before anything else, like your own loan, phone or insurance.

Stays in your browser: nothing you type is sent or saved.

The four ways side by side

Partner A has US$5,500 after their own costs. Partner B has US$3,800 after their own costs.

Equal amounts

Each of you puts in the same amount.

Partner A puts in
US$1,50050% of the shared costs25% of their incomePartner A has left: US$4,000
Partner B puts in
US$1,50050% of the shared costs37.5% of their incomePartner B has left: US$2,300

Gap in money left: US$1,700

By income

Each of you puts in the same share of your income.

Partner A puts in
US$1,80060% of the shared costs30% of their incomePartner A has left: US$3,700
Partner B puts in
US$1,20040% of the shared costs30% of their incomePartner B has left: US$2,600

Gap in money left: US$1,100

Custom

You choose the split.

Partner A's share in the custom way
Partner A puts in
US$1,50050% of the shared costs25% of their incomePartner A has left: US$4,000
Partner B puts in
US$1,50050% of the shared costs37.5% of their incomePartner B has left: US$2,300

Gap in money left: US$1,700

Equal money left

Each of you ends the month with the same amount left, after your own costs.

Partner A puts in
US$2,35078.3% of the shared costs39.2% of their incomePartner A has left: US$3,150
Partner B puts in
US$65021.7% of the shared costs16.3% of their incomePartner B has left: US$3,150

Gap in money left: US$0

What each way leaves each of you
  • Partner A
  • Partner B

Equal amounts

By income

Custom

Equal money left

Agreeing on contributions is a start. Following them is the rest.

HomePocket shows what each of you puts into the household each month, next to the household's spending, and keeps your own money private.

Free for your first month.

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The link opens the calculator empty: your figures are never in it.

How the contribution calculator works

Where the split calculator divides a list of expenses, this one starts from one shared amount and compares what four ways of paying it leave each of you, after each of you has paid your own committed costs.

Equal amounts: each puts in half. By income: each puts in the same share of their own pay. Custom: you set the split. Equal money left: the contributions are set so that you both end the month with the same amount, after your own costs and the shared ones.

Equal money left can't always be had. If one of you has much less after your own costs, evening it out would mean the other paying them, which is a transfer between you rather than a contribution. The calculator then shows the closest: the one with less puts in nothing. If you don't have enough between you for the shared costs, it says so.

A worked example

Partner A takes home $6,000 and pays $500 of their own costs; Partner B takes home $4,000 and pays $200. The household costs $3,000 a month. Equal amounts leave Partner A $4,000 and Partner B $2,300. By income, both put in 30% of their pay, leaving $3,700 and $2,600. For equal money left, Partner A puts in $2,350 and Partner B $650, and each keeps $3,150.

What each way weighs

Equal amounts treat the household as a shared bill. By income treats it as a shared effort. Equal money left treats your income as one pot after your own costs, close to pooling everything. A custom split lets other things count, like unpaid work at home. None is right for every couple; it helps to look at the money left, not only at the contributions.

Questions

How much should each partner contribute to household expenses?

It depends on what you both think is fair. Common ways are equal amounts, the same share of each income, or contributions that leave you both with the same amount. This calculator shows all four side by side so you can talk about the results rather than the principle.

What does equal money left mean?

That after paying your own committed costs and your contributions, you both have the same amount left for the month. It's close to pooling your incomes for everything, while keeping your own accounts.

Why can't equal money left always be worked out?

When one of you has much less left after their own costs than the other, equal money left would need the other to pay them on top of covering the household. The calculator shows the closest it can do without a negative contribution and tells you so.

How is this different from the split expenses calculator?

The split calculator divides a list of shared expenses. This one compares ways to contribute and counts each person's own costs, so you can see what each way leaves both of you.

Is anything I type saved?

No. It all stays in your browser, and nothing is sent to our server.

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