Child support · KS
Kansas child support calculator
The Kansas Child Support Guidelines effective July 2025: one schedule per family size, a column per age group, and the time adjustments.
Rules read on official Kansas pages on · Checked by Radif Partners · How we calculate
- Model
- Income shares
- Income counted
- Gross income
- Shared parenting
- No fixed formula
- 1 child, $5,000 / $3,000
- $809
- a month, rules of July 1, 2025
Kansas prices child support per child and by age. The guidelines in force since July 1, 2025 (Supreme Court Administrative Order 2025-RL-121) print six schedules, one per family size, each with three columns: children aged 0 to 5, 6 to 11 and 12 to 18. A family with $4,000 and $2,000 of gross monthly income and two children in the middle group reads $798 per child on the $6,000 line, $1,596 in all, of which the parent with $4,000 owes $1,065 a month. The youngest group costs 16% less than teenagers and the middle group 6% less. The calculator has no age field, so it uses the 6 to 11 column for every child. Time counts from 35% of the year with the other parent, and equal parenting time has its own formula.
Guideline child support in Kansas, per month
$809
$9,705 a year
| Combined child support income | $8,000 |
| Per-child amount, age 6-11 column used for every child, 1 child | $1,294 |
| Gross child support obligation | $1,294 |
| Paying parent’s share (nearest tenth) | 62.5% |
Estimate under the Kansas guideline as published, from the incomes you enter. Deviations, imputed income, other children and the judge's findings can change the order. How this is calculated.
Three columns per child
Appendix II is built backwards from teenagers. The 12 to 18 amount is the result of a support function; the 6 to 11 amount is that value times 0.94, and the 0 to 5 amount times 0.84, rounded only at the end. A child's age is taken at the nearest birthday, so a child five months short of twelve already counts as twelve. For one family, the age mix alone moves the total.
| Two children | Gross child support obligation |
|---|---|
| both under 6 | $1,426 |
| both 6 to 11 | $1,596 |
| both 12 to 18 | $1,698 |
| one of 4, one of 15 | $1,562 |
The paying parent's share is the income percentage, rounded to a tenth of a point. Orders for families whose children cross an age boundary are not adjusted automatically, but a child moving into a new age group counts as a material change that allows a motion to modify.
Time with the paying parent
The parenting time adjustment of section IV.H.2 is a table, applied to the paying parent's share: 10% from 35% of the child's time, 20% from 40% of the child's time, 30% from 45% of the child's time. School and day care hours do not count toward the percentage. Equal parenting time leaves this table for a direct expense formula: half the difference between the two parents' shares, plus 7% of the total obligation when combined income is at most $4,690, 10.5% up to $8,125 and 15% above, paid by the parent who does not cover the children's direct expenses. The calculator assumes that parent is the one paying support.
| Overnights a year with the paying parent | Monthly support, two children aged 6 to 11 |
|---|---|
| 0 | $1,065 |
| 128 | $958 |
| 146 | $852 |
| 164 | $852 |
| 183 | $434 |
Past the last line
The schedules stop at $18,000 of combined income. Under each one, the guidelines print an extended formula: income raised to the power 0.6386, times 3.5596 for two children, gives the 12 to 18 amount per child. The result is discretionary, not presumptive; at $15,000 and $10,000 it suggests about $2,584 a month for two school-age children. Courts also run an ability-to-pay check against the federal poverty guideline for one person. The guidelines and the worksheet are on kscourts.gov; compare Nebraska and Oklahoma.
The Kansas guideline this calculator applies
| Rule | Kansas |
|---|---|
| Model | Income shares, combined gross monthly income schedules with per-child amounts by age group (Kansas Child Support Guidelines, Appendix II) |
| Income counted | Gross income before taxes, as the state guideline defines it. |
| Shared parenting | No overnight formula in the calculator (see the rule below) |
| In force since | July 1, 2025 |
Monthly support for one paying parent, the other parent without income
| Paying parent’s monthly income | 1 child | 2 children | 3 children | 4 children |
|---|---|---|---|---|
| $2,000 | $444 | $684 | $822 | $904 |
| $3,000 | $612 | $974 | $1,227 | $1,356 |
| $4,000 | $762 | $1,196 | $1,512 | $1,728 |
| $5,000 | $904 | $1,402 | $1,776 | $2,028 |
| $6,000 | $1,039 | $1,596 | $2,025 | $2,312 |
| $8,000 | $1,294 | $1,960 | $2,490 | $2,844 |
| $10,000 | $1,534 | $2,298 | $2,925 | $3,340 |
| $12,500 | $1,819 | $2,694 | $3,435 | $3,924 |
| $15,000 | $2,090 | $3,068 | $3,918 | $4,476 |
| $20,000 | $2,569 | $3,734 | $4,776 | $5,460 |
How the amount is set. Rows are $50 apart up to $2,000 and $100 apart from $2,000 to $18,000. For income amounts not shown, income is rounded to the nearest amount on the schedule (Guidelines VI.J.2). Use the schedule for the total number of children; read each child's amount in its age column (age at nearest birthday) and add them (Guidelines IV.B, IV.D.2). source
Income. Child support income = domestic gross income (wages and income from all sources; self-employment net of reasonable business expenses) after adjustments for child support paid in other cases and spousal maintenance paid or received in the present or other cases (Guidelines II.A, II.C-D, III).
Above the table. Above $18,000 the court exercises discretion; the extended formula printed under each schedule is: age 12-18 per-child amount = income ^ .6386 x 4.8982 / 3.5596 / 3.0359 / 2.6015 / 2.3175 / 2.1083 for 1-6 children; 6-11 = x 0.94; 0-5 = x 0.84 (Guidelines IV.G, Appendix II).
Parenting time. Parenting time adjustment: if the child spends 35% or more of its time with the nonresidential parent the court decides whether to adjust; the table gives 10% (35-39%), 20% (40-44%), 30% (45-49%) of that parent's share (worksheet line E.1.a: % x Line D.5) (Guidelines IV.H.2). Extended parenting time of 14+ consecutive days may reduce support by up to 50% (IV.H.3). Equal parenting time (discretionary): shared expense formula or direct expense formula = (higher share - lower share) / 2 plus 7% (combined income <= $4,690), 10.5% (> $4,690 and < $8,125) or 15% (>= $8,125) of the gross child support obligation (Guidelines VI.B-F).
Child care and health care. Work-related child care costs are added and shared proportionately (worksheet line G; Guidelines IV.J). Health, dental, vision and orthodontic premiums for the child are added and shared proportionately (worksheet line F; Guidelines IV.I). Each parent's proportionate obligation = gross support share + parenting time/shared residency adjustment + share of premiums + share of work-related child care (Guidelines IV.C).
Low incomes. Ability to pay: subtract the current federal poverty guideline for a household of one from the parent's child support income; support owed is the lesser of that and the guideline amount, or a best-interest amount if the available income is lower (Guidelines VI.G). The schedules note the 2023 poverty guideline for one person as $1,250 per month (rounded up to $50).
When support ends. Support ends at 18 unless agreed otherwise; if the child is still in high school it continues to June 30 of the school year in which the child turned 18, and on motion may continue through the school year in which the child turns 19 (K.S.A. 23-3001(b)). source
Worth knowing in Kansas
- Kansas schedules give a per-child amount that depends on each child's age group (0-5, 6-11, 12-18); the 0-5 and 6-11 amounts are 84% and 94% of the 12-18 amount (Appendix II). source
- The current guidelines took effect July 1, 2025 under Kansas Supreme Court Administrative Order 2025-RL-121 (dated October 3, 2025), superseding the May 1, 2025 version. source
- A parenting time adjustment can start when the child spends 35% or more of its time with the nonresidential parent (Guidelines IV.H.2). source
- Above $18,000 combined monthly income the schedules print a discretionary extended formula (income to the power .6386 times a multiplier) (Guidelines IV.G). source
- The child's age is taken at the nearest birthday (Guidelines IV.D.2). source