Calculator · Money & dating

Split Bills Calculator for Couples

Should you split 50/50 or by income? Enter both incomes and your shared costs to see both options.

  • Each person's share by income
  • The 50/50 split for comparison
  • What each costs as a share of pay
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50/50 vs. proportional split

A 50/50 split is simple but can be harsh when incomes differ a lot: the lower earner spends a much bigger share of their pay. A proportional split means each person pays the same percentage of their income, so the bills hurt equally.

What counts as a shared cost?

  • Rent or mortgage
  • Utilities and internet
  • Groceries and household supplies
  • Shared subscriptions

Personal spending usually stays separate.

Money and relationships

Money is one of the most common sources of conflict for couples, and one of the factors in the Breakup Calculator. Compare with the Cost of Being Single to see what living together saves you.

Frequently asked questions

Is splitting bills by income fair?

Many couples think so, because each person contributes the same share of what they earn.

Should couples have a joint account?

Many use one for shared bills and keep personal accounts.

When should couples start splitting bills?

Usually once you live together.