Illinois Alimony Calculator
Get an estimate of future spousal support payments based on the Illinois formula.
How is Alimony Calculated in Illinois?
In cases where couples earn less than a combined $250,000 annually, a standard formula can be applied to determine how much is expected to be paid in alimony. Even in cases outside of the ordinary, the formula may be used as a guideline.
Here is a rough estimate of how it will be calculated: (30% of the payer's gross income) – (20% of the payee's income) = the yearly maintenance support. However, that support cannot cause one spouse to earn more than 40% of the couple's combined income.
The length is determined in large part by the length of the marriage:
- (Marriage 0-5 years) x (20%)
- (Marriage 5-10 years) x (40%)
- (Marriage 10-15 years) x (60%)
- (Marriage 15-20 years) x (80%)
- Marriages of 20+ years – the court will either order permanent spousal maintenance or maintenance for the length of the marriage.
So, for example, spousal support awarded to someone in a 10-year marriage would be paid for six years.
Illinois Spousal Maintenance Calculation Examples
|Payer's Monthly Income||Receiver's Monthly Income||Estimated Monthly Maintenance Award|
* Note: The above table does not reflect maintenance duration.
What else is taken into consideration?
The legal basis of spousal maintenance is rooted in an effort to grant a measure of independence to a financially dependent spouse. A typical example of this is when one spouse has given up their career to be a homemaker in order to support the other in chasing a higher career level. Though the formula can be used as a guide to spousal support, the court uses a number of factors to determine how maintenance is specifically paid out:
- The income and properties held by each spouse, taking into account the property division process
- The needs of each spouse
- The age, income, job skills, employability, and physical health of each spouse
- The length of the marriage
- Earning capacity and career potential of each spouse
- Tax consequences as a result of the property division aspect of the divorce
- Reductions to career and earning potential as a result of one spouse delaying or stopping their career advancement as a result of marriage or childcare
- Any agreements made by either spouse in a prenuptial or post-nuptial agreement
- Contribution by one party to the increased earning power of the other
- The time required by the spouse seeking maintenance to secure job training or education necessary to advance their career and employment prospects
- The couple’s standard of living during the marriage
- Any other factor the court considers to be “just and equitable”
Alimony Articles & Frequent Questions
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