Free · Missouri · Current law
Based on Missouri's official Income Shares formula. Enter both parents' incomes and get an estimate in under a minute.
Before taxes — wages, self-employment, bonuses
A best estimate is fine for now
Taxes, mandatory retirement, union dues…
Work or school related
Estimated monthly support
The other parent pays you, the parent with primary timesharing.
Estimate only — based on a simplified reading of 2024 Missouri Child Support Guideline Review Updated Schedule. Official calculator → A judge can deviate. Not legal advice.
Get a plain-English copy of this estimate, the numbers used, and a short checklist for what to review before relying on it.
Missouri's child support is calculated using the Income Shares Model via Form 14. This involves combining both parents' adjusted gross incomes, determining a basic child support obligation from a schedule, and then prorating that obligation based on each parent's share of the combined income. Adjustments are made for health insurance premiums for children and work-related childcare costs. The final amount is the presumed child support obligation.
A substantial change in either parent's income — voluntary or involuntary — can trigger a modification.
Changes in childcare costs or the children's health insurance premiums directly adjust the support amount.
If the custody schedule changes significantly, support can be recalculated under Missouri guidelines.
Medical conditions, disabilities, or educational needs can justify a departure from the guideline amount.
Common questions
Missouri has a mandatory 30-day waiting period after filing. Uncontested divorces typically finalize in 60–120 days for uncontested cases. Contested divorces involving custody disputes or complex assets can take 12–24 months or longer.
To file for divorce in Missouri, there is no fixed residency waiting period, though you must be domiciled in Missouri at the time of filing. Filing in the wrong jurisdiction can result in your case being dismissed, so confirm with your county clerk if you recently moved.
Missouri is a no-fault divorce state. You can file citing 'irreconcilable differences' or 'irretrievable breakdown of the marriage' without proving the other spouse did anything wrong. Fault grounds (adultery, cruelty, abandonment) still exist but are rarely needed and don't typically affect property division.
Missouri follows equitable distribution. Courts divide marital property fairly but not necessarily equally, considering factors like each spouse's income, contributions to the marriage, and economic circumstances. Separate property (owned before marriage or received as a gift or inheritance) is generally not divided.
Missouri uses the Income Shares model to calculate child support. Both parents' incomes are considered along with the number of children, timesharing schedule, childcare costs, and health insurance. The resulting guideline amount is presumed correct but a judge can deviate based on special circumstances.
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