Missouri Child Support Calculator
Calculate child support in Missouri using the state's official Income Shares Model. Includes custody adjustments, health insurance credits, and childcare deductions.
Missouri divorces typically cost 52% less than the national average of $12,900.
Child Support in Missouri
- Formula
- Income Shares Model
- Income cap
- None specified
- Equal parenting presumption
- Yes - 50/50 default
- Property system
- Equitable distribution
Child Support Calculator in Missouri: What You Should Know
Missouri uses the Income Shares Model, calculated on the state's Form 14 worksheet. Both parents' gross incomes are combined, the basic obligation is read from a schedule, and Form 14 then applies credits for things like other children, health insurance, childcare, and overnight parenting time. Missouri also starts from a presumption favoring joint custody, so the parenting schedule that feeds the support credit often reflects substantial time with both parents. There is no statutory income cap, and the court can rebut the Form 14 amount when it would be unjust.
Key point: Missouri calculates Income Shares support on its Form 14 worksheet, which applies credits for parenting overnights, health insurance, and childcare.
Tell us the basics
Locked to Missouri on this page.
Use your gross (before-tax) monthly income. If you are paid annually, divide by 12.
Use their gross (before-tax) monthly income. If they are paid annually, divide by 12.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.
Child Support in Missouri - Frequently Asked Questions
How is child support calculated in Missouri?
Missouri uses the Income Shares Model to calculate child support. Both parents' gross incomes are combined, and each parent's share of the total obligation is proportional to their share of the combined income.
Can child support be modified in Missouri?
Yes. Either parent can request a child support modification if there has been a substantial change in circumstances, such as a significant change in income, change in custody arrangements, or changes in the child's needs. Courts in Missouri typically require a change of at least 15-20% in the support amount to justify modification.
Does custody arrangement affect child support in Missouri?
Yes. Parenting time is a significant factor in child support calculations. Missouri presumes equal parenting time by default. Parents with shared custody (typically defined as 40% or more overnights) receive a proportional reduction in their child support obligation.
Is there an income cap for child support in Missouri?
Missouri does not set a specific income cap in its child support formula. However, courts have discretion to deviate from the guideline amount in cases with very high incomes.
How long does child support last in Missouri?
Child support in Missouri typically continues until the child turns 18 or graduates from high school, whichever is later. Support may continue longer if the child has a disability or if the parents agree to extend support for college expenses.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.