Free Assumption Calculator

Post-Separation Budget Calculator™

Estimate what your monthly cash flow may look like after separation by comparing take-home income with housing, transportation, debt, children, insurance, and everyday living expenses.

This is a planning calculator, not a support calculator. It does not calculate child support, spousal support, taxes, or legal obligations. Enter only the income and expense assumptions you want to test.

Build a Monthly Budget

Enter estimated monthly amounts. Use zero for categories that do not apply.

Monthly Income
Use only amounts you intentionally want included in this scenario.
Housing
Transportation
Children & Family
Insurance, Debt & Living Expenses

Why post-separation budgeting matters

One household becoming two can change the financial picture even when income has not changed. Expenses that were once shared may need to be paid separately, and some costs may be easy to overlook during the early stages of separation.

  • Housing often becomes one of the largest post-separation expenses.
  • Insurance, utilities, transportation, and household costs may increase when two households are maintained.
  • Children's expenses can continue across both homes even when parenting time is shared.
  • Debt payments may limit the amount available for housing or savings.
  • A budget should leave room for irregular expenses, repairs, emergencies, and future changes.

A budget does not tell you what decision to make. It helps you see whether the assumptions you are considering appear financially workable before you commit to them.

Important Educational Disclaimer

Post-Separation Budget Calculator™ is an educational planning tool only. It does not calculate child support, spousal support, taxes, legal obligations, property division, debt responsibility, or court-ordered amounts. It does not provide financial, legal, tax, credit, or investment advice. Results depend entirely on the estimates entered by the user and may omit significant or irregular expenses. Consider appropriate qualified professional guidance when evaluating major financial decisions.