Understanding Kansas child support laws helps both custodial and non-custodial parents know their rights and obligations. This comprehensive Kansas child support guide covers how payments are calculated, what income counts, when support can be modified, and how orders are enforced. Whether you are going through a divorce, seeking a modification, or dealing with non-payment, this guide explains Kansas’s child support system in plain language.
Verified against Kansas statutes and federal OCSE guidelines as of April 2026.
In This Kansas Child Support Guide:
Kansas Child Support Overview
| Calculation Model | Income Shares Model |
| Support Ends At | 18. Exceptions: if the child turns 18 before completing high school, support continues until June 30 of the school year in which the child turned 18. If the child is still a bona fide high school student after that date, the court may extend support through the school year in which the child turns 19, provided parents jointly participated or acquiesced in delaying completion. Parents may also agree in writing to extend support beyond 18. |
| College Support Required | NO. Kansas courts cannot order parents to pay postsecondary education costs. How |
| Enforcement Agency | Kansas Department for Children and Families — Child Support Services (DCF-CSS) |
Kansas uses the income shares model for calculating child support. This model is based on the principle that children should receive the same proportion of parental income they would have received if the family were intact. Both parents’ incomes are combined, and the support obligation is divided proportionally.
Both parents’ gross incomes are combined to determine a total child support obligation from the guidelines schedule (based on combined income and number/ages of children in three age groups: 0-5, 6-11, 12-18). Each parent’s share is proportioned by their percentage of combined income. Adjustments are made for health insurance, childcare, and parenting time. Governed by Kansas Supreme Court Administrative Order, most recently updated effective July 1, 2025 (Order 2025-RL-121).
How Kansas Calculates Child Support
The Kansas child support calculation considers multiple factors:
- Determine each parent’s gross income — wages, salary, commissions, bonuses, self-employment income, investment income, and other sources.
- Calculate combined parental income — add both parents’ adjusted gross incomes together.
- Apply the guideline schedule — Kansas’s guidelines provide a base support amount based on combined income and number of children.
- Prorate between parents — each parent’s share is proportional to their percentage of the combined income.
- Add healthcare and childcare costs — these are added to the base amount and divided proportionally.
- Apply adjustments — parenting time credits, other child obligations, and special circumstances may adjust the final amount.
Online calculator: Use our child support estimator below to calculate your estimated obligation.
What Counts as Income in Kansas
Domestic gross income from all sources including wages, salaries, commissions, bonuses, self-employment income, investment income, rental income, Social Security benefits, workers’ compensation, unemployment insurance, and disability benefits. Excludes child support received for other children, and means-tested public assistance (Medicaid, SSI, TANF). Income is adjusted for child support paid in other cases and spousal maintenance paid or received.
Imputed income: YES. When a parent is deliberately unemployed or underemployed, the court may impute income considering assets, earnings history, work search efforts, job skills, education, age, health, and barriers to employment. The court must make written findings supporting the decision to impute income.
Deviation factors: Courts may deviate up to 5% from guidelines without specific findings; deviations exceeding 5% require the court to state the guidelines amount and explain why it would be unjust or inappropriate. Factors include: extraordinary medical expenses, special educational needs, travel costs for long-distance parenting time, significant independent income or assets of the child, and parenting time adjustments (10% reduction for 35-39% parenting time, 20% for 40-44%, 30% for 45-49%). Equal parenting time triggers the Direct Expense/Shared Expense Formula.
Healthcare & Childcare in Kansas Child Support
Health insurance: Health insurance premiums and uninsured medical expenses are added to the basic child support obligation. The court allocates healthcare costs between parents proportional to income. If employer-provided insurance is available at reasonable cost, the parent with access is typically ordered to maintain coverage.
Childcare costs: Actual, reasonable, and necessary childcare costs paid to permit employment or job search of a parent are added to the support obligation. The net amount (after deducting third-party reimbursements) is used. The court has discretion to determine whether proposed or actual childcare costs are reasonable based on income and circumstances of each party.
When Does Kansas Child Support End?
In Kansas, child support generally ends when the child reaches 18. Exceptions: if the child turns 18 before completing high school, support continues until June 30 of the school year in which the child turned 18. If the child is still a bona fide high school student after that date, the court may extend support through the school year in which the child turns 19, provided parents jointly participated or acquiesced in delaying completion. Parents may also agree in writing to extend support beyond 18.. However, support may continue or end earlier based on:
- The child graduates from high school (if still a minor)
- The child becomes emancipated (marriage, military service, self-supporting)
- The child has special needs requiring ongoing support
- College support: NO. Kansas courts cannot order parents to pay postsecondary education costs. However, parents may voluntarily agree in writing to contribute to college expenses, and such agreements are enforceable by the court.
Modifying Kansas Child Support
When to modify: A change in financial circumstances that would increase or decrease the child support amount by at least 10% when applying current guidelines. Also: a child moving to a higher age group (passing 6th or 12th birthday). Within three years of the original or last modification order, a material change in circumstances must be shown. After three years, no material change need be demonstrated.
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How to modify: File a motion to modify with the district court that issued the original order, including a completed domestic relations affidavit and proposed child support worksheet. Kansas DCF Child Support Services (CSS) can also review and pursue modifications for IV-D cases. Either parent may request a review through CSS at no cost.
Either parent can request a modification. Changes are typically not retroactive to before the date of filing the modification request.
Kansas Child Support Enforcement
Kansas has multiple tools to enforce child support orders when a parent fails to pay:
- Income withholding (immediate withholding required on all new/modified orders per K.S.A. 23-3101
- up to 50% of disposable income)
- tax refund intercept (state and federal)
- driver’s license suspension
- professional/vocational/recreational license suspension
- contempt of court (including imprisonment)
- liens on property
- credit bureau reporting
- passport denial for arrears over 2500
- bank account garnishment
Contact Kansas Department for Children and Families — Child Support Services (DCF-CSS) at https://www.dcf.ks.gov/services/CSS/Pages/default.aspx for enforcement assistance.
Additional Kansas rules: Kansas uses three child age categories (0-5, 6-11, 12-18) with different support amounts for each bracket. The Kansas Payment Center (kspaycenter.com) processes all child support payments statewide. Kansas applies a self-support reserve ensuring the paying parent retains enough income to meet basic needs. The 2025 guidelines revision clarified the Direct Expense Formula for equal parenting time situations.
Official Sources & Resources
- Kansas Department for Children and Families — Child Support Services (DCF-CSS): https://www.dcf.ks.gov/services/CSS/Pages/default.aspx
- Federal OCSE: acf.hhs.gov/css
- Cornell LII — Child Support: law.cornell.edu
- Kansas Guidelines Statute: K.S.A. 23-3001 through 23-3007 (Kansas Family Law Code, Article 30); K.S.A. 20-165 (Supreme Court authority to adopt guidelines); Kansas Supreme Court Administrative Order 2025-RL-121 (effective July 1, 2025, most current guidelines)
Last verified April 2026. Contact us if you notice outdated information.
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Formulas last verified: May 2026. This is an estimate only. Actual court-ordered support may differ based on deductions, health insurance, childcare costs, and judicial discretion. This is general educational information, not legal advice. Consult a family law attorney for your specific situation.