California Alimony Calculator
Estimate spousal support (alimony) payments based on California Family Code guidelines. Input incomes, marriage duration, and other factors.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the California Alimony Calculator
This tool estimates monthly spousal support based on California Family Code Section 4320 guidelines. Follow these steps:
- Enter Higher Earner’s Monthly Gross Income – Input the higher earner’s gross monthly income in dollars (e.g., 10000).
- Enter Lower Earner’s Monthly Gross Income – Input the lower earner’s gross monthly income (e.g., 4000).
- Enter Marriage Duration – Provide the length of the marriage in years (e.g., 10). Use decimals for partial years.
- Select Children Factor – Choose “No children” or “Children (standard adjustment)” to account for child support obligations.
- Click “Calculate Alimony” – The result shows the estimated monthly spousal support and a breakdown of the calculation.
Important Notes:
- All incomes must be non-negative, and the higher earner’s income must exceed the lower earner’s.
- If marriage duration is less than 10 years, the guideline amount is proportionally reduced.
- The result is rounded to two decimal places and displayed in USD.
Previous Results
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Frequently Asked Questions
It uses a simplified guideline: 40% of the income difference, prorated for marriages under 10 years, with a 20% reduction for standard child support adjustment.
No, it provides an estimate only. Actual alimony is determined by a judge based on California Family Code Section 4320 factors.
For marriages under 10 years, the guideline amount is multiplied by (marriage duration / 10), resulting in a lower support amount.
