Spousal Support Calculator
Estimate spousal support (alimony) payments based on income, duration of marriage, and other factors. This calculator provides a rough estimate using common guidelines.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Spousal Support Estimator
- Enter Payer's Annual Gross Income – Input the higher-earning spouse’s yearly income (e.g.,
80000). - Enter Recipient's Annual Gross Income – Input the lower-earning spouse’s yearly income (e.g.,
30000). - Enter Duration of Marriage – Provide the number of years married (e.g.,
10). - Enter Number of Children – If applicable, add the number of children (default is
0). - Click "Calculate Support" – The estimated monthly spousal support will display below.
What the Calculator Does:
- Calculates income difference (Payer minus Recipient).
- Applies a base rate of 25% of the difference.
- Adjusts for marriage duration (capped at 20 years) and children (5% per child).
- Divides by 12 to get a monthly estimate.
Note: All incomes must be in US dollars and positive. Marriage duration and children must be non-negative numbers. The result is a rough guideline, not legal advice.
Previous Results
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Frequently Asked Questions
This calculator uses a common guideline: 25% of the income difference between payer and recipient, adjusted for marriage duration and number of children. Actual support may vary by jurisdiction.
No, this is for estimation purposes only. Consult a legal professional for actual support determination.
If the payer's income is lower, the calculator may show $0 support, as support is typically based on the higher earner paying the lower earner.
