Family Law Laws in Missouri

Family Law Law in Missouri: Overview

Missouri family law is governed by Missouri Revised Statutes Chapter 452 (Dissolution of Marriage, Divorce, Alimony and Separate Maintenance). Missouri is a purely no-fault divorce state, permitting dissolution only on the ground that the marriage is irretrievably broken. The state follows equitable distribution for dividing marital property and uses the income shares model for child support. Missouri applies the best interests of the child standard for custody and has specific statutory factors for both custody and maintenance determinations. The state requires a 90-day residency period and imposes a 30-day waiting period after filing. Missouri distinguishes between marital and nonmarital property, with only marital property subject to division. The state has also developed a comprehensive parenting plan framework that encourages shared parenting responsibilities.

Key Statutes & Deadlines

Form 14 Child Support Calculation

Missouri uses a unique child support calculation worksheet known as "Form 14," which is the state's implementation of the income shares model. The calculation begins with each parent's gross income, then applies adjustments for taxes, other child support obligations, and childcare costs to arrive at adjusted gross income. The parents' combined adjusted gross income is used to determine the presumed child support amount from a schedule. Each parent's share is proportional to their adjusted gross income. Additional adjustments are made for health insurance, extraordinary medical expenses, and a custody adjustment when the non-custodial parent has significant parenting time. The Form 14 amount is presumptively correct, and deviations require written findings explaining why the guidelines amount would be unjust or inappropriate.

Parenting Plans and Custody

Missouri requires the submission of a parenting plan in all custody cases under Mo. Rev. Stat. § 452.375.9. The plan must include a specific written schedule of parenting time, a plan for making decisions regarding the child's health, education, and welfare, and provisions for resolving future disputes. In determining custody, the court considers the best interests of the child using factors including the wishes of the parents and child, the child's need for a frequent and meaningful relationship with both parents, the interaction between the child and parents and siblings, the child's adjustment to home, school, and community, the mental and physical health of the parties, any history of abuse, the intention of either parent to relocate, and which parent is more likely to allow frequent and continuing contact with the other parent.

Maintenance (Alimony) Considerations

Missouri courts may award maintenance under Mo. Rev. Stat. § 452.335 when a spouse lacks sufficient property to provide for reasonable needs and is unable to support themselves through appropriate employment. The court considers the financial resources of the requesting spouse, the time needed for education or training, the comparative earning capacity of each spouse, the standard of living during the marriage, the obligations and assets of each spouse, the duration of the marriage, the age and physical and emotional condition of the requesting spouse, the ability of the paying spouse to meet their own needs while paying maintenance, and the conduct of the parties during the marriage. Missouri does not have a statutory formula for maintenance amount or duration, giving courts broad discretion. Maintenance terminates upon the death of either party, the remarriage of the recipient, or a showing that the recipient is cohabiting.

Missouri Court System

Family law cases in Missouri are heard by the Circuit Courts, which are the state's trial courts of general jurisdiction. Missouri has 45 judicial circuits covering 114 counties plus the City of St. Louis. Many larger circuits, including Jackson County (Kansas City) and St. Louis County, have dedicated family court divisions. Missouri courts encourage mediation and settlement conferences in family law cases. The state utilizes guardians ad litem in contested custody cases and may appoint custody evaluators. Appeals from Circuit Court family law decisions go to the Missouri Court of Appeals (organized into three districts: Eastern, Western, and Southern) and may be further reviewed by the Missouri Supreme Court.

Damages & Penalties

Missouri divides only marital property equitably, with nonmarital property (premarital assets, gifts, inheritances) excluded from division. The court considers each spouse's economic circumstances, the contribution of each spouse to the acquisition of marital property, the value of nonmarital property, the conduct of the parties during the marriage, the custodial arrangement, and any other relevant factors. Maintenance is awarded at the court's discretion based on statutory factors without a formula. Child support is calculated using Form 14, the state's income shares model, with the presumed amount based on the parents' combined adjusted gross income. Enforcement of support orders includes income withholding, contempt of court, license suspension, tax refund intercepts, and criminal prosecution. Missouri permits modification of maintenance and child support when there is a continuing and substantial change in circumstances, with child support modification typically requiring at least a 20% change in the calculated amount.

Recent Legislative Changes

Missouri has updated its Form 14 child support calculations to reflect current economic data and has improved its parenting plan requirements. The state has also expanded access to mediation and other alternative dispute resolution services in family law cases and enhanced its processes for handling domestic violence cases.

Frequently Asked Questions