Alimony Calculator
Enter the payer's and recipient's monthly income, the length of the marriage and your state's guideline percentage to estimate monthly spousal support (alimony).
Not legal advice This is a general estimate only, not legal advice. Alimony laws vary widely by state and depend on many factors courts consider. Consult a qualified family law attorney for your situation.
Alimony Calculator
Estimate monthly spousal support
Estimated alimony = (payer income × guideline %) − recipient income, floored at zero, often capped by marriage-duration rules. Results are estimates only.
⚠️ Double-check important results. This is an educational estimate, not professional advice — and where it uses a rate, bracket or fee, those change over time. Verify anything you'll rely on, especially in legal, financial, tax or medical matters, and read our full disclaimer. Think a result is wrong? Tell us so we can fix it.
How Alimony Estimates Work
A common guideline formula estimates alimony as a percentage of the payer's income minus the recipient's income:
Estimated alimony = max(0, payer_income × guideline% − recipient_income)
**Important caveats**: - Every state has different laws and formulas; some use income shares, others use needs-based approaches - Courts consider many factors: age, health, earning capacity, standard of living, contributions to the marriage, and more - Duration often relates to marriage length (e.g., support may last half the marriage length for shorter marriages) - Temporary (pendente lite) support differs from post-divorce support
This calculator gives a rough ballpark only — actual awards are determined by a court or negotiated agreement.
- Guideline formula varies by state
- Many factors beyond income affect awards
- Duration often tied to marriage length
- Estimate only — consult an attorney
Worked Example
Example: Payer earns $6,000/month, recipient earns $2,000/month, 30% guideline.
- Payer share: $6,000 × 30% = $1,800 - Minus recipient income: $1,800 − $2,000 = −$200 - Floor at zero: estimated alimony = $0/month
If recipient earned $500/month: $1,800 − $500 = $1,300/month estimated alimony.
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Open calculator →Frequently Asked Questions
Is this a legal calculation?
No. This is a general estimate based on a common guideline formula. Actual alimony is determined by state law, the judge, and the specific facts of your case. Consult a family law attorney.
Does marriage length matter?
Yes — many states tie the duration (and sometimes amount) of alimony to how long the marriage lasted. This calculator doesn't model duration limits.
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