Kansas Alimony Calculator
Estimate spousal support and how long it lasts under K.S.A. § 23-2902 (maintenance); K.S.A. § 23-2904 (121-month duration limit). Enter your numbers below for an instant estimate with a step-by-step breakdown and statute citations.
Kansas Alimony Calculator
This state publishes a guideline equation that takes a share of the payor’s income and subtracts a share of the payee’s.
Based on K.S.A. § 23-2902 (maintenance); K.S.A. § 23-2904 (121-month duration limit) · Verified June 1, 2026
Kansas has no statutory alimony formula
Kansas has no statutory alimony formula, so this figure uses the AAML national guideline (30% of the payor's gross income minus 20% of the payee's, capped at 40% of combined income) purely as a ballpark. The figure below is an estimate to give you a ballpark — a Kansas judge decides the actual amount and duration using the factors listed beneath the calculator. About this method.
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Eligibility: No minimum marriage length to be eligible; either spouse may request maintenance and the court awards it based on need and ability to pay. Original award capped at 121 months by statute (K.S.A. 23-2904).
Factors Kansas Courts Weigh
- •Age and the present and future earning capacities of each party
- •Duration of the marriage
- •Property owned by the parties and the property division in the divorce
- •The parties' current and anticipated needs and financial resources, including separate property
- •The time, expense, and effort needed for the recipient to acquire education or training to become self-supporting
- •The standard of living established during the marriage
- •Each party's overall financial situation and ability to pay versus need for support
- •Tax consequences of the award to each party
- •Contributions of each spouse to the marriage, including non-economic contributions as homemaker
How Kansas Alimony Works
- •Kansas has no statewide statutory equation for the amount of maintenance. K.S.A. 23-2902 only requires an amount that is 'fair, just and equitable under all of the circumstances'; the amount is judicial discretion guided by case factors such as age, earning capacity, length of marriage, need, and ability to pay.
- •A commonly referenced practical tool in the Kansas City metro is the Johnson County Bar Association Family Law Section advisory guideline (June 2022 revision: 25% of the first $300,000 of the gross-income difference plus 10% of the excess, dropping to 20%/10% when child support is also paid and rising to 28%/10% for marriages of 25+ years; suggested duration is one-third of the marriage, capped at the 121-month statutory maximum). The $300,000 figure is a tier break inside the formula, not a cutoff. It is advisory only, not Kansas law and not court-mandated, originated in the Johnson County area, and is applied unevenly or not at all elsewhere in the state — so it is not a reliable statewide formula.
- •By statute (K.S.A. 23-2904) a court may NOT order maintenance for more than 121 months (about 10 years and 1 month) in the original decree; the recipient can seek reinstatement only if the decree reserves that authority, and each reinstatement period is likewise capped at 121 months.
- •Maintenance may be paid as a lump sum, periodic payments, a percentage of earnings, or any other basis, and the decree controls whether it is modifiable or terminable (K.S.A. 23-2902, 23-2903).
- •Marital misconduct/adultery is generally not a basis for maintenance in Kansas, which is a no-fault divorce state; courts focus on need and ability to pay rather than fault.
This is an estimate for educational purposes only, not legal advice. Alimony is highly discretionary; a Kansas judge can order a different amount or duration. Consult a licensed Kansas family-law attorney about your situation. See the official Kansas resource.
How Kansas Calculates Alimony
Kansas addresses spousal support under K.S.A. § 23-2902 (maintenance); K.S.A. § 23-2904 (121-month duration limit). It uses a guideline equation that takes a percentage of the payor's gross income and subtracts a percentage of the payee's gross income, with statutory caps. The calculator above applies that equation to your figures and shows each step.
Unlike child support, alimony is one of the most discretionary areas of family law. Even in states with a guideline equation, the figure is a starting point a judge can adjust after weighing the statutory factors, the length of the marriage, and each spouse's needs and ability to pay. Treat any number here as an informed estimate, not a guaranteed award.
Key Rules in Kansas
- Kansas has no statewide statutory equation for the amount of maintenance. K.S.A. 23-2902 only requires an amount that is 'fair, just and equitable under all of the circumstances'; the amount is judicial discretion guided by case factors such as age, earning capacity, length of marriage, need, and ability to pay.
- A commonly referenced practical tool in the Kansas City metro is the Johnson County Bar Association Family Law Section advisory guideline (June 2022 revision: 25% of the first $300,000 of the gross-income difference plus 10% of the excess, dropping to 20%/10% when child support is also paid and rising to 28%/10% for marriages of 25+ years; suggested duration is one-third of the marriage, capped at the 121-month statutory maximum). The $300,000 figure is a tier break inside the formula, not a cutoff. It is advisory only, not Kansas law and not court-mandated, originated in the Johnson County area, and is applied unevenly or not at all elsewhere in the state — so it is not a reliable statewide formula.
- By statute (K.S.A. 23-2904) a court may NOT order maintenance for more than 121 months (about 10 years and 1 month) in the original decree; the recipient can seek reinstatement only if the decree reserves that authority, and each reinstatement period is likewise capped at 121 months.
- Maintenance may be paid as a lump sum, periodic payments, a percentage of earnings, or any other basis, and the decree controls whether it is modifiable or terminable (K.S.A. 23-2902, 23-2903).
- Marital misconduct/adultery is generally not a basis for maintenance in Kansas, which is a no-fault divorce state; courts focus on need and ability to pay rather than fault.
How Long Alimony Lasts in Kansas
No formula sets duration; it is discretionary, but K.S.A. 23-2904 imposes a hard statutory ceiling: the original decree may not order maintenance for more than 121 months (~10.08 years), and each reinstatement period is also capped at 121 months. There is no state-published duration formula; some Johnson County practitioners estimate duration relative to marriage length, but that practice is advisory and not statewide. The 121-month statutory cap always controls.
What Counts as Income
Kansas's calculation uses each spouse’s gross income — earnings before taxes, including wages, bonuses, commissions, self-employment income, and many recurring sources. Courts can also impute income to a spouse who is voluntarily unemployed or underemployed, meaning support can be based on what a spouse could earn rather than what they currently do. Use your most recent pay stubs and tax return for the most accurate estimate.
Eligibility & Modifying an Order
No minimum marriage length to be eligible; either spouse may request maintenance and the court awards it based on need and ability to pay. Original award capped at 121 months by statute (K.S.A. 23-2904).
Alimony orders can usually be modified when there is a substantial change in circumstances — for example, a significant change in either spouse's income, the recipient's remarriage or cohabitation, retirement, or the payor's loss of employment. The specific rules and any non-modifiable agreements depend on your court order and Kansas law.
Frequently Asked Questions
Is this Kansas alimony calculator accurate?
It applies the Kansas guideline from K.S.A. § 23-2902 (maintenance); K.S.A. § 23-2904 (121-month duration limit) to the numbers you enter, so it gives a close estimate of a typical guideline award. It is not an official court calculation — a judge can order a different amount after weighing the statutory factors.
Is alimony taxable in Kansas?
For divorces finalized after December 31, 2018, alimony is not deductible by the payor and is not taxable income to the recipient under federal law. Most states follow the federal treatment, but check Kansas's current rules for state income tax.
Does cheating affect alimony in Kansas?
It depends on the state. Some states let courts consider marital misconduct among the alimony factors, while others bar it entirely. Review K.S.A. § 23-2902 (maintenance); K.S.A. § 23-2904 (121-month duration limit) and speak with a Kansas attorney about how fault is treated where you live.
Can alimony be changed later?
Usually yes. Alimony can often be modified when there is a substantial change in circumstances — such as a large change in income, the recipient's remarriage or cohabitation, or the payor's retirement — unless your order or agreement makes it non-modifiable.
Disclaimer
This calculator provides estimates for educational purposes only and is not legal advice. Alimony is highly fact-specific and discretionary; the amount and duration a Kansas court actually orders may differ significantly from any estimate here. For advice about your situation, consult a licensed Kansas family-law attorney.
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