Missouri Child Support Calculator

Free instant estimate based on Missouri's Income Shares model (Form 14, RSMo §452.340)

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Select a state and enter your monthly gross income to see an estimated child support payment based on net income.

How Missouri Calculates Child Support

Missouri calculates child support using the Income Shares Model as defined in RSMo §452.340 and Supreme Court Rule 88.01 (Form 14). Both parents' gross incomes are combined to determine the total support obligation from the state schedule. Each parent's share is then allocated proportionally based on their percentage of the combined income.

The Form 14 calculation adds health insurance premiums for the child and work-related childcare costs to the base obligation. These additional expenses are shared proportionally between the parents. Missouri also maintains a self-support reserve of $1,060 per month (2024) to ensure the obligor retains enough income for their own basic needs.

Courts may deviate from the presumed Form 14 amount with written findings explaining why the presumed amount is unjust or inappropriate. Factors considered include the child's educational needs, the standard of living the child would have enjoyed, and the financial resources of both parents.

Frequently Asked Questions

How does Missouri calculate child support under the Income Shares method?
Missouri uses the Income Shares Model under RSMo §452.340 and Supreme Court Rule 88.01 (Form 14). Both parents' incomes are combined to determine the total support obligation, which is then allocated to each parent proportionally based on their share of combined income.
What is Form 14 in Missouri child support?
Form 14 is the official Missouri child support calculation worksheet. It combines both parents' monthly incomes, references the state support schedule to find the base obligation, and adjusts for health insurance, childcare, and other expenses to arrive at the presumed child support amount.
What counts as income for Missouri child support?
Income includes wages, salary, commissions, bonuses, self-employment income, interest, dividends, rental income, royalties, pensions, severance pay, and Social Security benefits. Missouri uses gross income from all sources.
Does Missouri consider both parents' income for child support?
Yes. Missouri uses the Income Shares Model, which requires combining both parents' gross incomes to determine the total support obligation. Each parent is responsible for their proportional share based on their percentage of combined income.
Can Missouri child support be modified?
Yes. Either parent can request a modification if there has been a substantial and continuing change in circumstances that makes the current order unreasonable, such as a significant change in income, custody, or the child's needs.

Important Legal Disclaimer

The information provided on SupportCalc is for general informational and educational purposes only. Nothing on this website should be taken as legal advice. Child support calculations are estimates based on publicly available state guidelines and may not reflect the exact amount ordered by a court. Every case is unique, and many factors can affect the final support order. Please consult with a qualified family law attorney in your jurisdiction for advice specific to your situation.