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Alimony / Spousal Support Calculator

Estimate monthly alimony and total spousal support using the widely cited AAML formula: 30% of the higher earner's gross income minus 20% of the lower earner's gross income, adjusted for marriage length and alimony type. Awards vary significantly by state — some have statutory formulas, others leave it to judicial discretion — so treat the output as a planning estimate.

Marriage & Income Information

For reference. Calculator uses the AAML guideline.
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Legal Disclaimer: Alimony laws vary dramatically by state. Some states (e.g. Texas, North Carolina) heavily restrict alimony; others (e.g. Massachusetts, Florida) have detailed statutory formulas; many leave amount and duration to the judge's discretion. This calculator uses the AAML guideline as a benchmark only and does not reflect any specific state's rules. Always consult a licensed family law attorney before relying on these estimates.

How Alimony Is Determined

Courts typically consider: each spouse's income and earning capacity, marriage length, standard of living during the marriage, age and health of both spouses, contributions to the marriage (including homemaking), and the recipient's ability to become self-supporting. The AAML formula — 30% of the payor's gross income minus 20% of the recipient's — produces an estimate, but the result is generally capped so the recipient does not receive more than 40% of the couple's combined income.

Duration is usually tied to marriage length. Short marriages may yield only temporary support; medium-length marriages often warrant rehabilitative alimony of 30–50% of the marriage length; long marriages may produce long-term or indefinite awards, especially when the recipient cannot reasonably re-enter the workforce.