Missouri courts award two distinct types of financial support in divorce cases: spousal maintenance (alimony) and child support. Under RSMo §452.335, maintenance provides financial assistance to a spouse who lacks sufficient resources for self-support. Child support, governed by RSMo §452.340 and calculated using Form 14, ensures both parents contribute to their children's expenses. The average Missouri divorce involves maintenance awards ranging from $500 to $3,000 per month, while child support obligations typically range from $300 to $1,500 per month depending on income levels and custody arrangements. Understanding the difference between alimony and child support in Missouri is essential for anyone navigating divorce proceedings in the Show-Me State.
Key Facts: Missouri Divorce at a Glance
| Category | Details |
|---|---|
| Filing Fee | $133-$233 (varies by county; add $75-$100 if children involved) |
| Waiting Period | 30 days minimum after filing petition |
| Residency Requirement | 90 days in Missouri before filing |
| Grounds | No-fault (irretrievable breakdown) |
| Property Division | Equitable distribution |
| Maintenance Statute | RSMo §452.335 |
| Child Support Statute | RSMo §452.340 |
| Child Support Calculation | Form 14 (Income Shares Model) |
| Child Support Terminates | Age 18 or high school graduation (whichever is later) |
What Is Spousal Maintenance (Alimony) in Missouri?
Spousal maintenance in Missouri provides financial support from one spouse to another when the receiving spouse lacks sufficient property to meet reasonable needs and cannot support themselves through employment. Under RSMo §452.335, Missouri courts may award maintenance only after finding that the requesting spouse meets both threshold requirements: insufficient property including marital assets to provide for reasonable needs, and inability to become self-supporting through appropriate employment. Missouri abandoned the term "alimony" in favor of "maintenance" when it adopted the Uniform Marriage and Divorce Act, though both terms remain in common use.
Missouri courts consider seven statutory factors when determining maintenance awards under RSMo §452.335:
- The financial resources of the party seeking maintenance, including marital property awarded to them
- The time necessary to acquire sufficient education or training for appropriate employment
- The comparative earning capacity of each spouse
- The standard of living established during the marriage
- The obligations and assets of each party, including separate property
- The ability of the paying spouse to meet their own needs while paying maintenance
- The conduct of the parties during the marriage
Unlike child support, Missouri has no statutory formula for calculating maintenance amounts. Courts exercise broad discretion in setting both the amount and duration of maintenance awards. A spouse married for 20 years who stayed home to raise children will typically receive a larger and longer maintenance award than a spouse married for 5 years who maintained employment throughout the marriage.
What Is Child Support in Missouri?
Child support in Missouri ensures both parents contribute financially to their children's needs following divorce or separation. Missouri calculates child support using the Income Shares Model established by Missouri Supreme Court Rule 88.01 and codified in RSMo §452.340. The calculation uses Form 14, a standardized worksheet that produces a presumptive support amount based on both parents' gross incomes, the number of children, health insurance costs, childcare expenses, and parenting time allocation. The Missouri Supreme Court issued an updated Form 14 effective January 1, 2026, incorporating a revised Schedule of Basic Child Support Obligations based on the 2024 guideline review.
Form 14 requires three official documents from the Missouri Courts website:
- CS 01 Form 14: Child Support Amount Calculation Worksheet
- CS 01 DIR: Directions, Comments for Use, and Examples
- CS 01 SCH: Schedule of Basic Child Support Obligations
The Schedule provides lookup tables showing presumed basic child support obligations for combined adjusted gross incomes ranging from $750 to $50,000 per month. Missouri courts apply a parenting time adjustment based on overnight visits with the non-custodial parent. The credit begins at 36 overnights per year with a 6% reduction and increases incrementally to a 34% reduction at 181-183 overnights annually. Courts may apply up to a 50% adjustment in specific circumstances.
Alimony vs Child Support Missouri: Core Differences
The difference between alimony and child support in Missouri centers on purpose, calculation method, duration, and tax treatment. Spousal maintenance supports an ex-spouse who cannot meet their own financial needs, while child support ensures children maintain an appropriate standard of living regardless of which parent has primary custody. Missouri courts treat these obligations as separate and distinct, and a parent may owe both simultaneously.
| Factor | Spousal Maintenance | Child Support |
|---|---|---|
| Purpose | Support former spouse | Support children |
| Governing Statute | RSMo §452.335 | RSMo §452.340 |
| Calculation Method | Judicial discretion (7 factors) | Form 14 formula |
| Presumptive Amount | No | Yes (rebuttable) |
| Typical Duration | Varies by marriage length | Until age 18 or high school graduation |
| Terminates on Remarriage | Yes (automatic) | No |
| Terminates on Death | Yes (either party) | Yes (paying parent only) |
| Tax Deductible (Payor) | No (post-2018 divorces) | No |
| Taxable Income (Recipient) | No (post-2018 divorces) | No |
| Modification Standard | Substantial change in circumstances | 20% change under Form 14 |
How Missouri Courts Calculate Maintenance
Missouri courts determine spousal maintenance amounts by weighing the seven statutory factors listed in RSMo §452.335 without applying a fixed formula or mathematical guideline. This discretionary approach means maintenance awards vary significantly across Missouri's 45 judicial circuits. A Jackson County judge and a St. Louis County judge may reach different conclusions on identical facts. The standard of living during the marriage serves as a critical benchmark, with courts typically attempting to allow both spouses to maintain a reasonably comparable lifestyle post-divorce when marital resources permit.
Missouri recognizes several types of maintenance awards:
- Temporary maintenance: Paid during the divorce process until the divorce is finalized
- Short-term maintenance: Most common type, supports a spouse until they can obtain employment or complete education
- Permanent maintenance: Long-term support typically reserved for spouses unable to become self-supporting due to age, illness, or disability
- Maintenance in gross: Lump-sum payment rather than periodic payments
Maintenance orders can be designated as modifiable or non-modifiable. A modifiable order allows either party to return to court and request changes based on substantial changes in circumstances. Non-modifiable orders typically can only be changed if both parties agree.
How Missouri Courts Calculate Child Support Using Form 14
Missouri courts calculate child support using Form 14, which applies the Income Shares Model to determine each parent's proportional contribution to child-related expenses. The Missouri Supreme Court updated Form 14 effective January 1, 2026, incorporating revised support obligations based on the 2024 guideline review. Parents and attorneys using outdated schedules will arrive at incorrect basic obligation amounts. Always download the current CS 01 SCH schedule from courts.mo.gov before running calculations.
The Form 14 calculation follows these steps:
- Calculate each parent's monthly gross income (wages, salaries, commissions, bonuses, self-employment income, investment income)
- Apply appropriate deductions (taxes, prior child support obligations, other court-ordered support)
- Determine combined adjusted gross income
- Look up the basic child support obligation from the Schedule based on combined income and number of children
- Calculate each parent's proportional share based on their percentage of combined income
- Add work-related childcare costs and health insurance premiums
- Apply parenting time adjustment if applicable
- Arrive at the presumptive child support amount
Missouri law creates a rebuttable presumption that the Form 14 calculation produces the correct support amount. Either parent may argue the amount should be higher or lower, but must demonstrate that applying the guidelines would be unjust or inappropriate under the specific circumstances.
Duration: How Long Does Each Type of Support Last?
Missouri maintenance has no statutory time limits, giving courts broad discretion to award support for whatever period they deem just based on individual circumstances. Courts typically consider the length of the marriage, the receiving spouse's age and health, and the time needed to become self-supporting. A 55-year-old spouse who left the workforce for 25 years to raise children may receive maintenance until retirement age. A 35-year-old with marketable skills after a 10-year marriage might receive maintenance for 3-5 years while pursuing additional education or rebuilding their career.
Child support in Missouri terminates when the child reaches age 18 or graduates from high school, whichever occurs later, under RSMo §452.340. Missouri extends child support obligations to age 21 when a child enrolls in vocational or higher education no later than October 1 following the child's 18th birthday or high school graduation. The child must maintain enrollment in at least 12 credit hours per semester and achieve passing grades in a minimum of 6 credit hours each term. The October 1 enrollment deadline is strictly enforced by Missouri courts.
Maintenance terminates automatically upon the receiving spouse's remarriage or either party's death under RSMo §452.370. Cohabitation does not automatically terminate maintenance but may support a modification request if the relationship constitutes a substitute for marriage. Child support obligations continue regardless of the custodial parent's remarriage.
Tax Treatment of Alimony vs Child Support in Missouri
Neither spousal maintenance nor child support payments carry tax consequences for divorces finalized after December 31, 2018. The Tax Cuts and Jobs Act of 2017 eliminated the federal tax deduction for maintenance payments and removed the income inclusion for recipients. This change applies to all divorce agreements executed after December 31, 2018, including Missouri divorces. Both maintenance and child support are now tax-neutral: the paying spouse cannot deduct payments, and the receiving spouse does not report them as income.
For divorces finalized before January 1, 2019, the previous tax rules still apply. Under the prior system, maintenance payments were tax-deductible for the paying spouse and taxable income for the receiving spouse. Child support has never been tax-deductible or taxable under federal law. Missouri couples with pre-2019 divorce agreements should consult a tax professional before modifying their maintenance arrangements, as modifications may trigger the new tax rules.
Which Is More: Alimony or Child Support?
Which is more, alimony or child support in Missouri? Child support obligations often exceed maintenance awards for families with multiple children and significant income disparities between parents. A parent earning $150,000 annually with three children and a spouse earning $50,000 may face monthly child support obligations exceeding $2,500 under Form 14 calculations. Maintenance awards in the same scenario might range from $1,000 to $2,000 monthly depending on the marriage length and other statutory factors.
However, maintenance can exceed child support in longer marriages where one spouse earned substantially more than the other. A 25-year marriage where one spouse earned $300,000 annually while the other stayed home might produce maintenance awards of $5,000-$8,000 monthly, while child support for one teenager approaching age 18 might be $1,500-$2,000 monthly. The total support obligation depends on individual circumstances, and Missouri courts consider each type of support separately.
Modification of Maintenance and Child Support
Missouri courts apply different standards when modifying maintenance versus child support. Either party may petition to modify a modifiable maintenance order by demonstrating a substantial and continuing change in circumstances under RSMo §452.370. Common grounds include job loss, significant income changes, serious illness, or the receiving spouse becoming self-supporting. Non-modifiable maintenance orders typically cannot be changed absent agreement by both parties.
Child support modifications require a showing that applying Form 14 guidelines would result in a change of 20% or more from the existing support amount, creating a prima facie case for modification. Missouri courts will also consider other substantial changes in circumstances affecting the child's needs or either parent's ability to pay. The custodial parent receiving an inheritance does not reduce the other parent's child support obligation, as child support is calculated based on parental incomes rather than household resources.
Missouri Divorce Filing Requirements
Filing for divorce in Missouri requires meeting specific residency and procedural requirements. Under RSMo §452.305, at least one spouse must have been a Missouri resident for 90 days immediately before filing the divorce petition. Military members stationed in Missouri for 90 days also satisfy this requirement. Missouri does not impose county residency requirements, so you may file in any county where either spouse resides.
Missouri divorce filing fees range from $133 to $233 depending on the county and whether minor children are involved. Counties with minor children typically charge $75-$100 more than filings without children. Additional costs include $25-$75 for sheriff service of process or $50-$200 for a private process server. Parents must complete an approved parenting education program costing $25-$75, such as the Focus on Kids program administered through MU Extension.
Missouri imposes a mandatory 30-day waiting period after filing before a judge can finalize the divorce. An uncontested divorce where both spouses agree on all terms typically takes 60-90 days from filing to final judgment. The court retains jurisdiction for 30 days after entry of the judgment for potential appeals or motions to set aside. Fee waivers are available for applicants whose income falls near or below 125% of the federal poverty level (approximately $19,088 for a single person or $39,000 for a family of four in 2026).
Frequently Asked Questions
What is the difference between alimony and child support in Missouri?
Spousal maintenance (alimony) supports a former spouse who cannot meet their own financial needs, while child support ensures children receive adequate financial support from both parents. Maintenance is governed by RSMo §452.335 and determined by judicial discretion weighing seven statutory factors. Child support is calculated using Form 14 under RSMo §452.340 based on both parents' incomes and produces a presumptive support amount.
How is spousal maintenance calculated in Missouri?
Missouri courts calculate maintenance by weighing seven statutory factors without applying a formula: the requesting spouse's financial resources, time needed for education or training, each spouse's earning capacity, marital standard of living, each party's obligations and assets, the paying spouse's ability to pay, and marital conduct. Awards typically range from $500 to $3,000 monthly depending on these factors.
How is child support calculated in Missouri?
Missouri calculates child support using Form 14, which applies the Income Shares Model under Missouri Supreme Court Rule 88.01. The calculation considers both parents' gross incomes, number of children, health insurance costs, childcare expenses, and parenting time. A parent with 36+ overnights annually receives a 6-34% parenting time credit depending on total overnights.
When does child support end in Missouri?
Child support terminates when the child reaches age 18 or graduates from high school, whichever occurs later. Support extends to age 21 if the child enrolls in higher education by October 1 following their 18th birthday or high school graduation, maintains 12 credit hours per semester, and passes at least 6 credit hours each term. Support may continue indefinitely for children with physical or mental incapacity preventing self-support.
Does remarriage affect alimony in Missouri?
Maintenance terminates automatically upon the receiving spouse's remarriage under RSMo §452.370. Cohabitation does not automatically terminate maintenance but may support a modification petition if the relationship constitutes a substitute for marriage. The paying spouse's remarriage does not automatically affect their maintenance obligation, though increased household expenses might support a modification request.
Is alimony taxable in Missouri?
For divorces finalized after December 31, 2018, maintenance payments are neither tax-deductible for the paying spouse nor taxable income for the receiving spouse under federal law. The Tax Cuts and Jobs Act of 2017 eliminated the previous tax treatment. Divorces finalized before January 1, 2019, remain under the old rules where maintenance was deductible for the payor and taxable to the recipient.
Can I receive both alimony and child support in Missouri?
Yes, Missouri courts may award both spousal maintenance and child support in the same divorce case. The court analyzes each obligation separately under different statutes and standards. A custodial parent who lacks sufficient resources for self-support and has children with the other parent may receive both types of support simultaneously. The total combined award depends on the paying spouse's ability to meet both obligations.
How do I modify child support in Missouri?
File a motion to modify with the court that entered the original order, demonstrating that applying current Form 14 guidelines would change support by 20% or more from the existing amount. This creates a prima facie case for modification. Other substantial changes in circumstances affecting the child's needs or either parent's ability to pay may also justify modification. Use the January 1, 2026, updated Form 14 for all calculations.
What happens to support if I move out of Missouri?
Missouri retains jurisdiction over support orders entered by Missouri courts regardless of where either party relocates. The Uniform Interstate Family Support Act (UIFSA) governs interstate enforcement. You can register a Missouri support order in another state for enforcement purposes. Modifications typically must be filed in Missouri unless both parties and the children have left the state.
Can spousal maintenance be waived in Missouri?
Yes, spouses may waive maintenance rights in a prenuptial agreement, postnuptial agreement, or marital settlement agreement. Missouri courts generally enforce maintenance waivers if the agreement was entered voluntarily, with full financial disclosure, and is not unconscionable at the time of enforcement. Courts may decline to enforce a waiver that would leave one spouse destitute or dependent on public assistance.
This guide reflects Missouri law as of April 2026. Filing fees current as of January 2026; verify with your local circuit clerk. Child support calculations use Form 14 effective January 1, 2026. This information is educational and does not constitute legal advice. Consult a Missouri family law attorney for guidance on your specific situation.
Reviewed by Antonio G. Jimenez, Esq. | Florida Bar No. 21022