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Who owes whom

How do couples know who owes whom?

How to calculate a shared-expense balance when both partners paid different bills during the month.

Short answer

Calculate each partner’s expected share of shared expenses, then compare it with what each partner actually paid. The person who paid less than their expected share owes the difference.

Why this matters

The balance is not about blame. It is just the difference between contribution owed and money already fronted.

How to handle it

  1. Add all shared expenses.
  2. Calculate each person’s share based on the split rule.
  3. Add what each person actually paid.
  4. Subtract paid amount from expected share.
  5. Settle only the net difference.

Watch out for this

If previous balances are included, label them clearly so this month’s spending is not confused with old debt.

How Couplesplit helps

Couplesplit shows the live balance and balance details, including the pieces that explain how the final number was calculated.

Shared money, clearer

Try Couplesplit with your partner.

Split expenses, see balances, and close the month without reconstructing everything by hand.