Alimony Estimate
Estimate a rough monthly alimony from an income difference.
About Alimony Estimate
A common rough approach treats roughly a third of the income difference as annual support, capped by the recipient's needs. The result is a starting estimate, not a court order. Alimony rules differ sharply between states and depend on marriage length and lifestyle, so any estimate should be confirmed with legal advice.
Formula
Alimony Estimate
Annual alimony = min(needs x 12, income difference / 3)
- needs
- recipient's monthly needs
Worked example
With the default values below, Alimony Estimate returns Monthly Alimony of $1,666.67. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Payer income
- 80,000
- Recipient income
- 20,000
- Monthly needs
- 4,000
Results
- Monthly Alimony
- $1,666.67
- Annual Alimony
- $20,000.00
- Support Share of Income
- 25.00%
Step by step
- 1Values used
- 2Alimony Estimate
- 3Monthly Alimony= 1,666.67
- 4Annual Alimony= 20,000.00
- 5Support Share of Income= 25.00
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- Estimate only. Actual spousal support is determined by a court and varies widely by jurisdiction and circumstances.
- This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Estimate only. Actual spousal support is determined by a court and varies widely by jurisdiction and circumstances.
Frequently Asked Questions
How is Alimony Estimate calculated?
Annual alimony = min(needs x 12, income difference / 3) A common rough approach treats roughly a third of the income difference as annual support, capped by the recipient's needs. The result is a starting estimate, not a court order.
Why does Alimony Estimate matter?
Alimony rules differ sharply between states and depend on marriage length and lifestyle, so any estimate should be confirmed with legal advice.
What values do I need to enter?
This calculator takes 3 inputs: Payer income, Recipient income, Monthly needs. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.