Mo. Rev. Stat. § 452.335 authorizes maintenance when a spouse lacks sufficient property for reasonable needs and cannot be self-supporting through appropriate employment, or is custodian of a child whose circumstances make outside employment inappropriate, then requires consideration of factors such as financial resources, training time, earning capacity, standard of living, marriage length, conduct, age, health, and other listed factors.
Alimony Calculator - Missouri
Reviewed by TheLegalCalc Editorial Team | Last updated: April 2026
Sources: U.S. Department of Labor | IRS | State Bar Associations
Estimate spousal support payments in Missouri based on income difference and length of marriage. Free Missouri alimony calculator.
Content last reviewed: April 2026
Legal data verified: March 2026•Sources: DOL | NCSL | State Courts•Next review: January 2027
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How the Missouri Alimony calculator works
Missouri maintenance in dissolution actions is governed primarily by Mo. Rev. Stat. § 452.335, which authorizes the court to grant maintenance only if it finds the spouse seeking maintenance lack...
Missouri alimony laws: what you need to know
St. Louis City and St. Louis County family dockets see the highest maintenance volume, with judges expecting updated financial statements before hearings. Jackson County Kansas City metro filings often involve cross-state Kansas employment requiring withholding clarification on pay stubs under Mo. Rev. Stat. § 452.335 analyses.
Greene County Springfield healthcare and logistics overtime swings—use twenty-four-month W-2 charts. Boone County Columbia Mizzou-affiliated stipends may be partially excludable—attach program letters before imputation hearings.
Clay County Kansas City Northland Amazon-style warehouse shift premiums should attach employer policy PDFs before hearings. Jasper County Joplin manufacturing layoffs generate modification motions—attach Missouri unemployment determinations and WARN notices.
Common mistakes include skipping Mo. Rev. Stat. § 452.335 threshold analysis, conflating gross with net income for self-support arguments, and stale financial affidavits after plant closures. Another error is inconsistent gross income between child support and maintenance filings.
Mediation in St. Louis and Kansas City often bundles maintenance with MOSERS or private retirement QDRO drafts—align benefit commencement with maintenance end dates. Cape Girardeau Mississippi River port logistics wages fluctuate—use year-to-date pay ledgers.
Franklin County Washington exurban St. Louis tech stock option refresh grants should include vesting cliffs before arguing gross income. Platte County Kansas City International Airport airline and logistics seasonality should be annualized with employer schedules.
Butler County Poplar Bluff rural healthcare on-call pay should be annualized across rotation schedules. Taney County Branson tourism hospitality dips each winter—use trailing-twelve-month employer schedules before fixing maintenance.
St. Charles County Wentzville logistics commuter toll and parking costs should be documented when arguing reasonable needs. Jefferson County Arnold and Festus Mississippi River industrial bonuses should attach employer incentive plan PDFs.
Cole County Jefferson City state-agency pay steps should be verified with HR printouts before imputation. Newton County Joplin tornado rebuild overtime in construction trades may be temporary—attach project completion letters when arguing changed circumstances.
Pemiscot County Bootheel row-crop and cotton ginnery wages fluctuate seasonally—document cooperative settlement statements. Stone County Table Rock Lake tourism hospitality dips each winter—use trailing-twelve-month employer schedules before fixing maintenance.
Laclede County Lebanon I-44 logistics warehouse shift premiums should attach employer policy PDFs before hearings. Cape Girardeau County Jackson Mississippi River port union overtime should be annualized with local ILA contract excerpts under § 452.335 earning-capacity analyses.
Audrain County Mexico auto supplier layoffs should attach WARN notices and Missouri unemployment determinations when arguing changed circumstances. Boone County Ashland exurban Columbia childcare chain costs should be documented in needs affidavits tied to custodial threshold findings.
Frequently asked questions
No. Courts must first satisfy Mo. Rev. Stat. § 452.335’s threshold findings, then weigh subsection 2 factors for amount and duration.
Modification generally requires changed circumstances so substantial and continuing as to make the terms unreasonable, subject to agreement language and Missouri case law.
No. Missouri child support uses guideline forms, while maintenance under Mo. Rev. Stat. § 452.335 uses statutory threshold findings and factors rather than mirroring child support percentages.
Because threshold findings examine sufficient property including marital property apportioned to the spouse, equitable division directly affects eligibility and subsection 2 analysis.
Courts examine ability to support oneself through appropriate employment under § 452.335; imputation arguments require vocational and labor-market evidence.
Courts may award temporary maintenance while a case proceeds under Missouri procedural rules, but final awards must comply with Mo. Rev. Stat. § 452.335.
Federal tax rules generally control; many post-TCJA orders are non-deductible and non-taxable. Coordinate tax clauses with a tax professional.
Legal Disclaimer: The results provided by TheLegalCalc are estimates for informational purposes only and do not constitute legal advice. Laws vary by state and change frequently. Always consult a licensed attorney in your state before making legal decisions.
State-specific legal disclaimer
This Missouri maintenance estimate is informational only. Mo. Rev. Stat. § 452.335 and Missouri family practice require individualized findings. Consult a Missouri family lawyer before filing or modifying maintenance.
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