Missouri Child Support Calculator
Estimate child support under Missouri Supreme Court Rule 88.01 and Civil Procedure Form 14. Calculate baseline support, parenting time overnights, health insurance credits, and work-related childcare costs.
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MO RulesEstimated Child Support
MO EstimateUnderstanding Missouri Child Support Guidelines
Missouri operates an Income Shares model governed by Supreme Court Rule 88.01 and calculated strictly via Form 14. Combined gross income determines basic support, with credits on Line 11 for overnight visitation.
Shared Custody & Overnights in Missouri
Missouri Form 14 Line 11 provides a sliding scale overnight adjustment: 36–72 nights yields 6%–10% credit; 110–183 nights yields up to 34% credit (and up to 50% for equal parenting under local court rules).
Calculate Your Exact Overnights →Official Court Worksheets & Forms
Family court filings in Missouri require completing: Form 14 (Child Support Amount Calculation Worksheet). Review official forms before filing.
View State Worksheets Directory →Worked Calculation Example: Standard Missouri Scenario
Here is a realistic line-by-line computation for two parents in Missouri raising 2 children:
| Guideline Worksheet Line Item | Parent A (Paying) | Parent B (Receiving) | Combined / Order Total |
|---|---|---|---|
| Monthly Guideline Income | $4800 | $3300 | $8100 |
| Parental Income Proportion | 59% | 41% | 100% |
| Basic Child Support Schedule Obligation | - | - | $1370 /mo |
| Work-Related Childcare Cost | - | - | +$390 /mo |
| Health & Dental Insurance Premium | - | - | +$210 /mo |
| Total Combined Child Financial Needs | - | - | $1970 /mo |
| Final Estimated Monthly Support Order | Paid by Parent A to Parent B | $1100 /month | |
Frequently Asked Questions in Missouri
Key legal questions regarding child support establishment, modifications, and enforcement in Missouri.
What is Form 14 in Missouri?
Form 14 is the mandatory Missouri Supreme Court worksheet used to calculate presumptive child support in all dissolution, legal separation, and paternity proceedings.
How does the Line 11 overnight credit work in Missouri?
Line 11 gives the paying parent an adjustment based on annual overnight visitation: 36–72 nights gives a 6% to 10% credit, 73–109 nights gives 10% to 14%, and 110+ nights gives 15% to 34%.
Can parents agree to waive child support in Missouri?
No. Under Missouri law, child support belongs to the child. Courts will not enforce a private agreement to waive support without approval of a Form 14 calculation or justified deviation.
Next Useful Steps for Your Case
Take the next step in preparing your family financial documentation:
Convert Irregular Income
Standardize hourly wages, seasonal overtime, or commissions into monthly gross figures.
Launch Income Tool →Explore 50/50 Custody
See how equal time sharing and reciprocal guidelines impact final transfer payments.
50/50 Custody Tool →Download Official Worksheets
Find the exact PDF court forms and financial affidavits required by your court clerk.
Court Worksheets Directory →