Calculate household contributionsand settlement amounts

Enter each person's take-home income and the household expenses they have already paid.

The calculator suggests contributions that bring the money left after household expenses closer together.

Your entries are not saved. Everything is calculated only in this browser.

Entries for each member

Enter one month of take-home income and household expenses paid.

Monthly take-home income:: Income such as salary after taxes and social insurance
Household expenses paid:: Payments such as rent and groceries

Member 1

NameRequired

Monthly take-home incomeRequired

Household expenses paidRequired

Member 2

NameRequired

Monthly take-home incomeRequired

Household expenses paidRequired

Calculation method

Balance household contributionsAdjust contributions only within the household expense total. No transfer exceeds shared expenses.Balance money left to spendInclude income differences to equalize money left after expenses. Transfers may exceed household expenses.

Compare the methods

Balance household contributions adjusts only expense contributions, with a minimum of ¥0.

Balance money left to spend includes income differences, so someone may receive money even when household expenses are ¥0.

How the calculation works

The calculator adjusts contributions based on the amount each person has left after paying household expenses. This differs from an even split or a fixed percentage of income.

Choose whether to balance household contributions or money left to spend. The calculator then compares each person's suggested contribution with what they already paid and creates a settlement.

Use it as a starting point for conversations between couples, families, housemates, or anyone sharing household expenses.