Child support · Tool
Kansas child support estimator
Kansas splits the cost of raising a child in proportion to what each parent earns. This works out your share, your parenting time adjustment and your share of insurance and child care, using the guidelines that took effect on 1 July 2025.
- Income Shares model, as Kansas applies it
- Guidelines effective 1 July 2025
- An estimate, not a court order
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Your estimate
- Combined monthly income
- $9,500
- Your share of the combined income
- 63.2%
- Other parent's share
- 36.8%
- Your share of insurance and child care
- $189
- Parenting time adjustment
- Not available
This percentage is what everything else is split by. It is the number most people get wrong.
63.2% of $300
Kansas opens this adjustment at 35% of the child's time.
Waiting on the schedule figure
Everything above is calculated. Enter the gross obligation from the official schedule in step 4 and this becomes a dollar figure, or let us run the real worksheet with you.
An estimate, not a court order. Kansas requires a completed Child Support Worksheet approved by a judge or hearing officer. Guidelines effective 1 July 2025 (Administrative Order 2025-RL-121).
Where estimates go wrong
The arithmetic is the easy part.
Almost every dispute about a support figure is a dispute about what counts as income, not about the multiplication.
- Self-employment. What counts as a reasonable business expense is argued over constantly, and a schedule C is not the same as child support income.
- Overtime and bonuses. Regularly worked overtime generally counts. A one-off bonus in an unusual year may not.
- Imputed income. A court can attribute income to a parent it decides is not working to capacity, which changes the answer entirely.
- In-kind benefits. A company car, free housing or paid personal expenses can be treated as income.
- Age at nearest birthday. A child of five years and eight months sits in the 6 to 11 bracket, not the 0 to 5 bracket. It is worth checking, because a child crossing brackets is itself a reason to revisit an order.
- Divided residency. Where each parent has primary residency of at least one child, two worksheets are needed and compared. This tool covers the standard single-household case only.
Answers
Child support questions
How is child support calculated in Kansas?
Kansas uses an Income Shares model. Both parents' gross monthly incomes are added together, each parent's percentage share of that combined total is worked out, and the total support figure is read from the Kansas Child Support Schedule based on the combined income, the number of children and their ages. Each parent then carries their percentage share of that figure, plus the same share of health insurance and work-related child care.
What income counts?
Gross monthly income from all sources before deductions: wages, overtime, bonuses, commission, shift differential, self-employment income after reasonable business expenses, military pay including housing and subsistence allowances, VA disability, Social Security Disability Insurance and workers' compensation. Public assistance and child support received for other children do not count. Do not subtract income tax; the schedules already account for it.
Does having the children half the time mean no support?
Not automatically. Kansas treats equal parenting time as a deviation with its own formulas, and where there is a meaningful income gap between the parents there is usually still a payment. The parenting time adjustment itself only becomes available once the child spends 35 percent or more of their time with the parent who does not have primary residency, and the exact amount is a judge's decision.
Why can this tool not just tell me the number?
Every step of the Kansas worksheet is arithmetic except one. The Gross Child Support Obligation is read out of printed tables in Appendix II of the guidelines, and those tables cannot be reproduced from a formula. The power function published alongside them applies only to combined income above 18,000 dollars a month and badly overstates support below that. Rather than invent a number, this tool calculates everything it can calculate exactly and asks you for the one figure it cannot.
How often can a support order be changed?
A Kansas child support order can be reviewed when there is a material change in circumstances. A change in either parent's income, a change in the parenting schedule, a child moving into a higher age bracket on the schedule, or a revision of the guidelines themselves can all qualify.
Which court handles this in Overland Park?
Johnson County cases are heard at the District Court in Olathe, and the Johnson County District Court Trustee handles enforcement and collection of support orders.
Next step
Get the real number.
We run the official worksheet with your actual figures, including the arguments about what counts as income. That conversation is confidential and there is no obligation.
Or simply call
(913) 239-9966- Confidential
- Including the fact that you called.
- Same-day callback
- Weekdays, if you reach us before 3pm.
- Clear on fees
- How billing works, before you leave.
Speak to someone at the firm about your situation in Overland Park, anywhere in Johnson County, or across the line in Missouri.
(913) 239-996614221 Metcalf Ave. Suite 210
Overland Park, KS 66223
Monday to Friday, 8:00 AM to 5:00 PM