Divorce in Missouri With Children: Custody, Support, and Parenting Plans

Getting a divorce in Missouri with children involves three requirements that childless divorces do not: a written parenting plan filed within 30 days of service, a Form 14 child support worksheet, and compliance with a 2024 law that presumes roughly equal parenting time is best for the child. At least one spouse must have lived in Missouri for 90 consecutive days before filing, and no judge can sign a final decree until at least 30 days after the other spouse is served.¹

Missouri is a no-fault state. The only ground is that the marriage is “irretrievably broken,” which the court accepts if one spouse says so.¹ You file in the circuit court of the county where either spouse lives. The 30-day waiting period is a floor; contested cases take considerably longer.

The Parenting Plan You Have to File

Both parents must submit a proposed parenting plan, jointly or separately, within 30 days after service of process or the respondent’s entry of appearance, whichever is first.² This is not optional. Some circuits will strike your pleadings if you miss the deadline.

The plan has to lay out a detailed physical custody schedule:

Which parent has the child for each holiday, school break, birthday, Mother’s Day, and Father’s Day.
Day-to-day residential arrangements during the school year and summer.
Specific times and locations for pickup and drop-off, and how transportation is shared.
Rules for telephone and electronic contact with the other parent.

It also has to address legal custody — how parents will share decisions about education, medical care, extracurriculars, and childcare. If you want sole decision-making authority, you have to state why.² The plan needs a dispute-resolution procedure for future disagreements, from mediation up to returning to court.

The financial section covers suggested child support, which parent provides health insurance, and how uninsured medical costs, educational expenses, childcare, and extraordinary costs are split. Standardized parenting plan forms are available through the Missouri Courts website and your local circuit clerk.

How Missouri Decides Custody

Missouri splits custody into two concepts. Legal custody is who makes major decisions. Physical custody is where the child lives. Each can be joint or sole. Joint physical custody means the child spends significant time with each parent, not necessarily a perfect 50/50 split.

The 2024 Equal-Parenting-Time Presumption

Since August 2024, Missouri law carries a rebuttable presumption that equal or approximately equal parenting time is in the child’s best interests.³ That is a real shift from how many Missouri cases used to run, where one parent got primary custody and the other got standard visitation. If you want something other than roughly equal time, you now carry the burden of proving why.

The presumption gets overcome by a preponderance of the evidence under the best-interests factors, or when both parents agree to a different arrangement. A finding of a pattern of domestic violence also rebuts it.

The Best-Interests Factors

When parents cannot agree, the judge weighs the following and must issue written findings:³

Each parent’s wishes and their proposed parenting plans.
The child’s need for a frequent, continuing, and meaningful relationship with both parents, and each parent’s willingness and ability to fulfill that role.
The child’s relationships with parents, siblings, and other significant people.
Which parent is more likely to allow the child frequent and meaningful contact with the other. Judges watch this closely. Bad-mouthing the other parent or obstructing visitation hurts your own case.
The child’s adjustment to home, school, and community.
Mental and physical health of everyone involved, including any history of abuse.
Either parent’s intention to relocate the child’s primary residence.
The child’s own input, free of coercion, about the arrangement.

No single factor controls. A child’s stated preference matters more as they get older, but judges are trained to tell a genuine wish from a coached one.

If Domestic Violence Is in the Picture

A documented pattern of domestic violence changes two things. It rebuts the equal-parenting-time presumption. And if the court still awards some custody to the abusive parent, the judge has to write specific findings explaining why and structure the arrangement to protect the child and the victimized parent from further harm.³ When visitation is restricted or supervised for this reason, the court can keep the victim’s home address out of records shared with the other parent.

Child Support and the Form 14 Worksheet

Missouri calculates child support using Form 14, a worksheet established by Missouri Supreme Court rule. It starts with each parent’s gross monthly income from all sources, then applies adjustments to produce a presumed support amount.

The main adjustments:

Work-related childcare costs for each parent, reduced by any childcare tax credit.
Health insurance premiums paid for the children.
Extraordinary expenses such as special educational needs or ongoing medical treatment.

These costs are shared in proportion to each parent’s income, not in proportion to parenting time.⁴ The resulting figure is what the court presumes is correct. Either parent can argue for a different number, but you need solid evidence the presumed amount is unjust or inappropriate.

Both parents file a completed Form 14. In some circuits the deadline runs as short as 15 days after initial pleadings, and missing it can get your pleadings struck.

Form 14 only works if the income numbers are honest. Missouri requires each spouse to file a sworn statement of income and expenses, plus a property statement listing all marital and non-marital assets and debts. You exchange pay stubs, tax returns, and other income documentation with the other side. Deadlines vary by circuit; the requirement itself doesn’t. Lying on a sworn financial statement creates contempt exposure and a credibility problem that can bleed into custody and support outcomes.

When a Guardian Ad Litem Gets Involved

In any contested custody case, the court can appoint a guardian ad litem, an attorney whose job is to represent the child’s interests rather than either parent’s. Appointment becomes mandatory when child abuse or neglect is alleged.⁵

The guardian ad litem investigates independently. That usually means interviewing the children, visiting both homes, reviewing school and medical records, and talking with teachers or therapists. They then make a recommendation to the judge, who is not bound by it but gives it real weight.

Parents pay for this. The court sets a reasonable fee and can order one or both parents to pay directly, and a parent who ignores the payment order can be held in contempt.⁵ Fees vary with the complexity of the case, and this is an expense many parents do not budget for.

Parenting Education Classes

Many Missouri circuits require both parents, and in some circuits children ages 5 through 17, to complete a parenting education course before the divorce can be finalized. The 16th Circuit (Jackson County) uses a three-hour program called FOCIS (Focus on Children in Separation). Other circuits run their own versions under local rules. These classes cover the effects of divorce on children, co-parenting communication, and conflict reduction. Call your local circuit clerk early, because the court will not sign the decree until the requirement is satisfied.

Health Insurance and Taxes After the Decree

If one spouse carried the family on an employer plan, the other loses coverage when the divorce is finalized. Federal COBRA treats a finalized divorce as a qualifying event, letting the former spouse continue on the group plan for up to 36 months. You have to notify the plan administrator within 60 days of the divorce. COBRA is expensive because you pay the full premium without the employer subsidy, but it buys continuity while you line up other coverage.

Children work differently. A divorce court can issue a Qualified Medical Child Support Order requiring a parent’s employer plan to enroll the children, even if that employee did not previously cover them.⁶ The order must name each child, describe the coverage, and set the time period. The plan does not have to invent benefits it does not already offer, but it has to extend existing coverage to the children named. Your parenting plan should specify who provides health insurance and how uncovered costs are split, because the court wants that nailed down before signing.

Who Claims the Kids on Taxes

Child support is neither deductible by the payer nor taxable to the recipient. You do not report it anywhere on your federal return.

By default, the custodial parent — the one the child lived with for more nights during the year — claims the child as a dependent. If nights were equal, the custodial parent for tax purposes is the one with the higher adjusted gross income.⁷ Claiming the child unlocks the child tax credit (currently $2,200 per qualifying child under 17) and potentially the credit for other dependents.

The custodial parent can release the dependency claim to the other parent by signing IRS Form 8332. Parents often use this as a negotiating chip, sometimes alternating years. The release only transfers the dependency exemption and child tax credit. It does not transfer the earned income credit, the dependent care credit, or head of household filing status, which stay with the custodial parent.⁷

Head of household status gives you a bigger standard deduction and better brackets than filing single. To qualify after divorce, you must be unmarried or considered unmarried at year-end, pay more than half the cost of maintaining your home, and have a qualifying child who lived with you for more than half the year.⁸ A custodial parent who signed Form 8332 can still file as head of household; the two determinations are independent.

Changing Custody or Support Later

The final decree is not necessarily permanent when kids are involved.

To modify custody, you have to show changed circumstances since the original decree (or facts the court did not know) and that the modification serves the child’s best interests.⁹ A parent’s move to another city, a child’s changing needs, or a parent’s deteriorating fitness can qualify. Being unhappy with the arrangement does not. On a motion to modify joint custody, each side is entitled to a change of judge as a matter of right under supreme court rule.

Child support can be modified when circumstances have changed so substantially and continuously that the current terms are unreasonable. Missouri uses a bright line: if running the current Form 14 numbers on both parents’ updated finances would move the support amount by 20 percent or more, that alone presumes modification is warranted.¹⁰ Job loss, a substantial raise, a remarriage that shifts household expenses, or a child’s changed needs can all qualify.

1
Missouri Revisor of Statutes. Missouri Code 452.305 – Judgment of Dissolution, Grounds For
2
Missouri Revisor of Statutes. Missouri Code 452.310 – Petition, Contents, Parenting Plans Submitted
3
Missouri Revisor of Statutes. Missouri Code 452.375 – Custody
4
Missouri Courts. Directions, Comments for Use and Examples for Completion of Form No. 14
5
Missouri Revisor of Statutes. Missouri Code 452.423 – Guardian Ad Litem
6
U.S. Department of Labor. Qualified Medical Child Support Orders
7
Internal Revenue Service. Claiming a Child as a Dependent When Parents Are Divorced, Separated, or Live Apart
8
Internal Revenue Service. Filing Status
9
Missouri Revisor of Statutes. Missouri Code 452.410 – Modification of Custody Decrees
10
Missouri Revisor of Statutes. Missouri Code 452.370 – Modification of Child Support