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Illinois Maintenance (Alimony) Calculator

If you're navigating a divorce in Illinois, understanding how spousal support (also known as maintenance or alimony) may be calculated is an important part of preparing for what comes next. Our calculator offers a general estimate based on the statutory guidelines used across the state.

This calculator provides an estimate based on your inputs and does not account for asset or debt division. Actual spousal support may vary based on the specifics of your case.

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How Spousal Support Is Calculated in Illinois

Spousal support in Illinois is typically determined by a formula set forth in state law. It’s intended to provide financial assistance to the lower-earning spouse after a divorce, especially when there’s a significant income gap. Our calculator offers a simple estimate using two key inputs:

  • Each spouse’s annual net income (that’s income after taxes)
  • Each spouse’s annual net income (that’s income after taxes)

This estimate applies to most cases, but there are exceptions. Judges can consider other factors when calculating support, especially if the couple has an unusual financial arrangement or a prenuptial agreement.

Talk to an Attorney for a Clearer Picture

Keep in mind, every case is different. Our calculator is a starting point, but divorce settlements are influenced by more than just numbers. If you’re considering divorce or have questions about support, the team at Keller Legal Services is here to help. Call (630) 505-1515 to schedule a free consultation and get answers tailored to your situation.

Disclaimer: This tool is designed for informational purposes only and is not a substitute for legal advice. The estimate provided is based on the basic statutory formula and may not reflect your unique financial situation. Results may vary for individuals with high net worth, multiple income sources, or self-employment income. For personalized guidance, contact Keller Legal Services today.