Kansas Child Support Calculator

Kansas calculates child support under the Kansas Child Support Guidelines, adopted pursuant to Kansas Statute Annotated 23-3001 and Supreme Court Administrative Order 276. The state uses the Income Shares model, under which both parents' combined gross monthly incomes are used to determine the basic support obligation from the Kansas Child Support Schedule. The schedule reflects economic research on what parents at various income levels typically spend on their children, and the obligation is then divided between the parents in proportion to each parent's contribution to the combined income.

Kansas courts are required to follow the guideline schedule as a rebuttable presumption of the appropriate support amount. A deviation requires the court to make written findings explaining why the guideline amount would be unjust or inappropriate in the specific case and how the amount ordered serves the best interest of the child. This presumption ensures consistency and predictability across Kansas child support cases, reducing the scope for arbitrary judicial discretion in routine cases while preserving flexibility for exceptional circumstances.

The Kansas guidelines apply in all cases where child support is established or modified, including divorce proceedings, paternity actions, and modifications of existing orders. Kansas regularly reviews the Child Support Schedule through the Joint Committee on Children's Issues and by consulting with the Supreme Court's Child Support Advisory Committee, ensuring that the schedule stays current with economic data on child-rearing costs. Updates to the schedule may trigger eligibility for modification of existing orders if the new amounts would differ substantially from the current obligations.

Kansas defines gross income broadly for child support purposes to include income from all sources: wages, salary, commissions, bonuses, overtime, self-employment income, rental income, interest and dividends, pension and retirement income, Social Security benefits, disability benefits, workers' compensation, and any other regular source of income. The guidelines are designed to capture the full economic capacity of each parent, preventing manipulation through income restructuring or strategic reduction of reportable earnings.

Kansas permits certain adjustments to gross income before the two parents' incomes are combined. Parents may deduct child support payments actually being made for children from other relationships pursuant to an existing court order, as well as maintenance payments being made to a former spouse pursuant to a court order. After these adjustments, each parent's adjusted gross income is added to the other's to produce the combined adjusted gross income used to consult the Kansas Child Support Schedule.

For parents who are voluntarily unemployed or underemployed without good cause, Kansas courts may impute income based on earning capacity. Earning capacity is determined by evaluating the parent's education, training, employment history, job skills, and the availability of suitable work in the local market. Kansas courts do not impute income lightly — they require a factual basis and an opportunity for the burdened parent to explain their circumstances. However, where the evidence supports it, imputation prevents a parent from gaming the system by deliberately reducing income to lower child support.

Kansas adds childcare and health insurance costs to the basic obligation from the Child Support Schedule before dividing the total proportionally between the parents. Work-related childcare expenses must be necessary for the parent to maintain employment, seek work, or attend job training. The net amount of qualifying childcare — after subtracting any applicable federal childcare tax credit — is added to the basic obligation and shared proportionally. Kansas courts carefully examine childcare claims to ensure the costs are legitimate and directly related to employment rather than voluntary or discretionary spending.

Health insurance premiums for the child — specifically the incremental cost of adding the child to an existing employer plan — are also added to the calculation and divided proportionally. Kansas courts typically order the parent with access to the most accessible and affordable employer-provided group coverage to maintain the child on that plan. If only one parent has employer coverage, they typically carry the child, and the premium cost is factored into the guideline total so that both parents share the burden.

Extraordinary medical expenses beyond those covered by insurance are addressed through a proportional sharing arrangement ordered by the court. These include significant dental work, vision care, mental health treatment, physical therapy, and other specialized medical or therapeutic services not covered by the child's health plan. Kansas courts commonly include a provision in the support order directing that unreimbursed medical expenses above a threshold be shared between the parents in the same proportion as their incomes, providing a clear framework for handling unanticipated costs without requiring repeated court appearances.

Kansas's child support guidelines provide a shared residential credit that reduces the obligation of the non-primary parent when they exercise significant parenting time with the child. The rationale is straightforward: when a parent has the child for a substantial number of overnights, they are directly bearing many of the costs of the child's care — housing, food, clothing, activities — and it would be inequitable to also require them to pay the full standard transfer payment calculated under the assumption that they have minimal parenting time.

The Kansas shared residential credit is calculated using a formula that takes into account the percentage of parenting time each parent exercises. As the non-primary parent's parenting time increases beyond the baseline used in the standard guideline calculation, a credit is applied that progressively reduces their transfer obligation. For parents approaching a 50/50 parenting split, the credit can substantially reduce or potentially eliminate the transfer payment, reflecting the economic reality that both parents are functioning as near-equal primary caregivers.

Kansas courts require clear documentation of the actual parenting schedule to apply the shared residential credit. If the parenting plan specifies the exact number of overnights each parent will have, those numbers are used in the credit calculation. If the schedule is variable or disputed, courts may average overnights over a representative period or require the parties to track actual parenting time prospectively. Parents who believe they are entitled to the shared residential credit should maintain accurate records of overnights and present those records to the court when requesting the adjustment.

Kansas allows courts to deviate from the guideline support amount when the standard result would be unjust or inappropriate. The Kansas Supreme Court has identified a non-exhaustive list of factors courts may consider in determining whether deviation is warranted: the child's educational needs or special needs requiring extra costs; the financial resources of both parents and the child; the standard of living the child would have enjoyed had the family remained intact; the physical and emotional needs of the child; and any other relevant factor affecting the child's welfare and the parents' ability to contribute.

Upward deviations are appropriate in cases involving a child with extraordinary medical or therapeutic needs, a parent with exceptionally high income that makes the standard schedule disproportionately low relative to the child's accustomed standard of living, or other circumstances where the basic obligation is clearly insufficient. Downward deviations are appropriate when strict application would leave the obligor unable to meet basic living needs, when the custodial parent has substantial independent means, or when the child has significant income or assets of their own.

Kansas child support orders may be modified when there has been a material change in circumstances since the last order was entered. A change is material if it is significant and ongoing rather than temporary. Kansas courts look at whether the change would produce a guideline amount that differs meaningfully from the current order — typically 10% or more — as evidence that modification is warranted. Either parent may file a motion to modify, and modifications are prospective from the date of filing. Parents who fall into arrears under the existing order cannot avoid those arrears through modification — only prospective amounts are affected.