Kansas Alimony Calculator 2026

Kansas Alimony Formula & Factors

Kansas has no statewide formula for the amount of maintenance, but it limits the length of an order. K.S.A. 23-2902 lets the court award maintenance in an amount it finds to be fair, just and equitable under all of the circumstances, as a lump sum, in periodic payments, on a percentage of earnings or on any other basis. The statute lists no factors and no percentage.

What the Illustrative Estimate Is

Because Kansas law gives no figure to calculate, the dollar amount on this page is an illustration only. It uses the reference method recommended by a commission of the American Academy of Matrimonial Lawyers (AAML) and adopted by its Board of Governors in March 2007: 30% of the payor's gross income minus 20% of the recipient's gross income, limited so that the recipient ends up with no more than 40% of the couple's combined gross income. The method is set out in Mary Kay Kisthardt's article in the Journal of the American Academy of Matrimonial Lawyers (vol. 21, 2008) and summarised by Maryland's highest court in Boemio v. Boemio (2010).

The AAML method is not Kansas law and Kansas courts are not bound by it. It lists its own reasons to depart from the result, such as a spouse caring for a young or disabled child, age or health, or a career given up for the other spouse. It was written when alimony was still tax-deductible for the payer, and it does not apply when combined gross income is above $1,000,000 a year. Treat the figure as a starting point for a conversation with a lawyer, not as a prediction.

Kansas Alimony Rules at a Glance

Worked Example: Kansas Alimony Calculator

Take gross incomes of $8,000 and $3,000 a month. Under the AAML reference method, 30% of $8,000 is $2,400 and 20% of $3,000 is $600, a difference of $1,800. The limit is 40% of the combined $11,000, which is $4,400, less the recipient's own $3,000: $1,400. The illustrative amount is the lower figure, $1,400 a month ($16,800 a year). This is an illustration, not an amount set by Kansas law.

For a 12-year marriage, the Kansas rule on length gives up to 10 years 1 month.

These are the figures the calculator shows when the page first loads. A real order depends on evidence a calculator cannot see.

Kansas Alimony Duration Rules

Under K.S.A. 23-2904 the court may not award maintenance for a period of more than 121 months. If the original decree reserves the court's power to hear a later motion, and the recipient files before the period ends, the court may reinstate payments in whole or in part for a further period of up to 121 months.

Is Alimony Taxable in Kansas?

For federal income tax, alimony or separate maintenance paid under a divorce or separation agreement executed after 2018 is not deductible by the payer and is not included in the recipient's income. Payments under an agreement executed before 2019 are generally still deductible by the payer and taxable to the recipient, unless the agreement was later modified and the modification expressly adopts the new rule (IRS Topic No. 452). Child support is never deductible and is not income.

This page does not cover Kansas state income tax. State rules are set separately and can differ from the federal rule, so check with the state tax agency or a tax adviser.

Modifying Kansas Alimony

Whether an order can be changed depends on its wording and on the type of support. In most cases either spouse can ask the court to modify periodic payments after a substantial change in circumstances, unless the decree or the spouses' agreement makes the support non-modifiable.

Read the order itself and K.S.A. 23-2902, 23-2904 before relying on a general rule, and get advice from a family lawyer licensed in Kansas about your own case. Nothing on this page is legal advice.

Last updated: October 2026. Sources: K.S.A. 23-2902 (Kansas Office of Revisor of Statutes); K.S.A. 23-2904 (Kansas Office of Revisor of Statutes); AAML Commission recommendations (Kisthardt, 21 J. Am. Acad. Matrim. Law. 61); IRS Topic No. 452.