Missouri Child Support Calculator (2026)
In Missouri, child support is based on both parents' combined income and the number of children. The total is split between you based on how much each parent earns, and parenting time can change the amount. Use the free calculator below for an instant estimate.
Calculate Your Missouri Child Support
Free estimate — official Missouri guidelines
Include wages, salary, bonuses, and other income
How Much Is Child Support in Missouri?
If you make $60,000 a year in Missouri, child support for 1 child is estimated at $749 per month ($8,988 per year). This assumes the other parent earns approximately $36,000/year. Actual amounts depend on both parents' incomes, custody time, and add-on expenses (child care, health insurance).
$1,000/week ($52,000/year): approximately $704/month for 1 child.
Missouri Child Support Estimates by Income (2026)
| Annual Income | 1 Child | 2 Children | 3 Children |
|---|---|---|---|
| $40,000/yr | $606/mo | $917/mo | $1,101/mo |
| $50,000/yr | $693/mo | $1,045/mo | $1,252/mo |
| $60,000/yr | $749/mo | $1,122/mo | $1,333/mo |
| $70,000/yr | $807/mo | $1,205/mo | $1,429/mo |
| $80,000/yr | $878/mo | $1,301/mo | $1,531/mo |
| $100,000/yr | $1,009/mo | $1,500/mo | $1,768/mo |
| $120,000/yr | $1,128/mo | $1,657/mo | $1,929/mo |
Estimates assume the other parent earns 60% of your income. Actual amounts vary. Compare all states →
How Child Support Is Calculated in Missouri
Factors That Affect Child Support in Missouri
Technical details and legal basis
Missouri uses the Income Shares model (Missouri Form 14 (MO Supreme Court Rule 88.01)) to calculate child support. This model combines both parents' incomes to determine the total obligation, then divides it proportionally based on each parent's share.
Important Notes for Missouri
- • Missouri uses the Income Shares model through its Form 14 worksheet, combining both parents' adjusted gross incomes to determine the total child support obligation.
- • Adjusted gross income is calculated by subtracting other court-ordered child support, spousal support paid, and other allowable deductions from gross income.
- • Missouri applies a custody adjustment credit when the non-custodial parent exercises overnight custody for more than the standard amount of time.
- • The court may deviate from Form 14 if the presumed amount is unjust or inappropriate, considering factors such as extraordinary costs or the child's special needs.
Example Calculation
Scenario: Parent A earns $5,000/month, Parent B earns $3,000/month, 2 children.
Step 1: Combined income: $8,000
Step 2: Parent A's share: $5,000 / $8,000 = 62.5%
Step 3: Look up basic obligation for $8,000 combined and 2 children.
Step 4: Multiply by Parent A's share (62.5%).
Adjustments for health insurance, child care, and parenting time may apply.
Key Facts: Child Support in Missouri
- Missouri uses the Income Shares model via the Form 14 worksheet, basing child support on both parents' combined adjusted gross income.
- The basic child support obligation for 1 child ranges from $91/month at $1,350 combined income to $3,332/month at $40,000 combined monthly income (2026 schedule).
- Each parent pays their proportional share of the total obligation based on their percentage of the combined income.
- Missouri includes adjustments for health insurance, work-related child care, and custody time credits for the non-custodial parent.
- The Form 14 amount is presumed correct but courts may deviate if the result is unjust or inappropriate based on the specific circumstances.
Missouri Child Support FAQ
How is child support calculated in Missouri?
What is Form 14 in Missouri child support?
What income is included in Missouri child support calculations?
Can the court deviate from Missouri child support guidelines?
How long does child support last in Missouri?
About This Calculator
Uses the official Missouri Form 14 (MO Supreme Court Rule 88.01) (2026 guidelines). Last verified: 2026-05-31.
Disclaimer: Estimates only, not legal advice. Actual amounts are set by Missouri courts. Full disclaimer.
Methodology: Income Shares model per Missouri Form 14 (MO Supreme Court Rule 88.01).