Illinois Spousal Support Calculator
The Illinois Spousal Support Calculator provides an estimate of spousal support based on the statutory formula outlined in state guidelines. By entering basic information about your income and marriage duration, you can gain a clearer understanding of how support may be calculated in your case.
Estimate Alimony Payments*
** This calculator is for informational purposes only and does not constitute legal advice. The results provided are approximate and may differ from the final determinations made by the court. For personalized assistance, consult a licensed attorney. These are estimated values and may present inaccurate results for high income individuals, individuals who are self-employed, or have additional income sources. For a more accurate estimate as to support payments, including both child support and maintenance, please schedule a consultation with one of our attorneys.
** This calculator is for informational purposes only and not legal advice. Consult a family law attorney for your specific case.
How the Illinois Spousal Support Calculator Works
Our calculator uses Illinois’ statutory spousal support formula, requiring just two key details:
- Annual Net Income: Enter your income and your spouse’s income after taxes.
- Marriage Duration: Input the total number of years, rounded to the nearest year, you were married.
Below is an Example Calculation:
- Payor's Net Annual Income: $120,000
- Recipient's Net Annual Income: $40,000
- Length of Marriage: 10 years
(33%×120,000)−(25%×40,000)=39,600−10,000=29,600per year
Combined Net Income = $120,000 + $40,000 = $160,000
40% of $160,000 = $64,000
The recipient’s total income, including support, would be $40,000 + $29,600 = $69,600.
Since this exceeds the $64,000 cap, the spousal support amount must be adjusted downward.
Adjusted Support = $64,000 – $40,000 = $24,000 per year ($2,000 per month).
For a 10-year marriage, the duration multiplier is 0.60:
10years×0.60=6years
The estimate is calculated based on Illinois state law and serves as a helpful starting point for understanding potential spousal support. For an in-depth evaluation, scheduling a consultation with an attorney is recommended.
Take the Next Step
Understand your options and protect your financial future. Speak directly with an experienced family law attorney about your spousal support estimate.
Frequently Asked Questions (FAQs)
Illinois uses a formula to estimate spousal support based on the annual net income of both spouses and the length of the marriage. Specifically:
Spousal Support=(33%×Payor’s Net Income)−(25%×Recipient’s Net Income)
The calculated amount, when added to the recipient’s net income, cannot exceed 40% of the combined net income of both parties. The duration of support depends on a multiplier applied to the length of the marriage. Courts can deviate from these guidelines if special circumstances exist.
While the calculator is based on statutory guidelines, courts may also consider other factors, including, but no limited to:
- Each spouse’s needs and financial resources.
- The standard of living during the marriage.
- The impact of spousal support on taxes for both parties.
- Contributions to the marriage, such as homemaking or caregiving.
- Any agreements between the parties (e.g., prenuptial agreements).
These variables may lead to adjustments in the final court order.
No. The results provided by this calculator are informational only and not legally binding; these are estimates to get you started. Courts have discretion to adjust spousal support amounts based on specific circumstances unique to each case. For example, deviations might occur due to additional financial obligations, health conditions, or property settlements.
In most cases, spousal support ends after the duration specified in the court order. However, it can terminate earlier if:
- The recipient remarries.
- The recipient cohabitates with a new partner in a marriage-like relationship.
- The payor or recipient passes away.
It is important to review the terms of your court order to understand your specific obligations or rights.
Yes, spousal support orders can be modified under certain circumstances, such as:
- A significant change in either party’s financial situation (e.g., job loss, salary increase).
- A change in the recipient’s need for support.
- Changes to the payor’s ability to pay.
To request a modification, you must file a motion with the court and provide evidence supporting your request.
Failure to pay spousal support as ordered by the court is considered a violation and can lead to serious consequences, such as:
- Wage garnishment.
- Seizure of tax refunds.
- Suspension of professional or driver’s licenses.
- Contempt of court, which may result in fines or jail time.
If you’re facing non-payment, contact your attorney or the court to explore enforcement options.
