Sharing household expenses means benefiting from expenses (children, people without income, etc.) as well as contributing to income (parent displaced for work reasons).

In general, the minimum expenses that must be shared, that is to say, must be paid from a common budget, for a person to be considered a member of the household are those related to housing and/or food.

People who are absent can be understood to share expenses and/or income, either because they are economically dependent on the household (absent students who do not have economic independence, have no income) or because, although temporarily absent, they contribute with their income to the family economy (absent spouse).

A person is considered to be economically dependent on the household when they participate in its budget, that is, they share expenses and/or income with the other people who make up the household. A common budget is considered to be the pool of resources that allows the homemaker or person in charge of managing the household to cover its common expenses.