2025 Illinois Alimony Calculator: Estimate Spousal Support
Navigating the financial aspects of divorce can feel overwhelming, especially when it comes to spousal maintenance (formerly known as alimony). Illinois law provides a formula to help determine how much one spouse may owe the other in spousal maintenance, but the final amount can depend on various factors, including income levels, marriage duration, and individual circumstances.
Use our Illinois Alimony Calculator below to estimate potential maintenance payments based on the most recent state guidelines.
Illinois Alimony Calculator: Estimate Your Spousal Support
Estimated Monthly Alimony: $0
How Is Alimony (Spousal Maintenance) Calculated in Illinois?
Under the Illinois Marriage and Dissolution of Marriage Act, spousal maintenance is generally calculated using the following formula: (33% of the payer’s net income) – (25% of the recipient’s net income) = annual alimony amount
However, Illinois law places a key limitation on this calculation: The recipient’s total income (including alimony) cannot exceed 40% of the couple’s combined net income.
Additionally, maintenance is only awarded if a judge determines it is appropriate based on factors like the length of the marriage, financial needs, and earning capacity of both spouses.
Use Our Illinois Alimony Calculator
Simply enter your financial details to get an estimated spousal support amount based on Illinois law. Keep in mind that this calculator provides a general estimate, and actual alimony awards can vary depending on court decisions, case-specific factors, and attorney negotiations. This calculator is for informational purposes only and provides an estimate.
Factors That Can Affect Alimony Awards
While the state formula provides a baseline, the court may adjust or deny alimony based on several considerations, including:
Length of the marriage – Longer marriages may result in higher or longer-lasting maintenance payments.
Income and earning potential – The court evaluates both spouses’ current income and future earning ability.
Standard of living – The lifestyle maintained during the marriage may impact support awards.
Contributions to the marriage – If one spouse supported the other’s career or stayed home to raise children, this could influence maintenance.
Age and health – A spouse’s ability to become financially independent may be a factor.
Need Legal Guidance on Alimony in Illinois?
Every divorce is unique, and spousal maintenance is not automatically granted. If you're seeking legal advice on alimony calculations, modifications, or enforcement, experienced Illinois divorce attorney Benton Page can provide strategic guidance tailored to your situation.
Contact us today to schedule a consultation and discuss your spousal support options.