Alimony in Missouri: Who Qualifies and How Long It Lasts

In Missouri, alimony is called maintenance, and not every divorcing spouse qualifies. Under RSMo 452.335.1, a court can only award maintenance to a spouse who (1) lacks enough property — including the marital property they're set to receive in the divorce — to cover their reasonable needs, and (2) either cannot support themselves through appropriate employment or is the custodian of a child whose circumstances make it inappropriate for that parent to work outside the home. If a spouse has enough assets or income to meet their own reasonable needs, Missouri law does not authorize a maintenance award to them, regardless of the length of the marriage.

There is no fixed formula, percentage, or set number of years attached to Missouri maintenance. The amount and duration are left to the judge's discretion, guided by a list of factors in the statute. That flexibility is a common source of confusion for people going through a divorce, so this article walks through what actually determines eligibility, amount, and duration under Missouri law — and what to do if you need to ask for maintenance, or need to change or end an existing order.

Who qualifies for maintenance in Missouri

Missouri's threshold test comes straight from RSMo 452.335.1. A judge must find both of the following before maintenance is even on the table:

• The requesting spouse lacks sufficient property, including the share of marital property they are awarded in the divorce, to provide for their reasonable needs; and
• The requesting spouse is unable to support themselves through appropriate employment, or is the custodian of a child whose age or condition makes it inappropriate for that spouse to be required to work outside the home.

Both prongs matter. A spouse who has significant assets awarded in the property division generally will not qualify, even if their income is modest, because the law looks at total resources — not just a paycheck. Likewise, a spouse who could reasonably support themselves through employment will typically not qualify just because they earned less than their spouse during the marriage.

How Missouri courts set the amount and duration

Once eligibility is established, RSMo 452.335.2 directs the court to set maintenance "in such amounts and for such periods of time as the court deems just," after weighing all relevant circumstances, including:

• The financial resources of the spouse seeking maintenance;
• The time that spouse needs to acquire 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 spouse;
• The duration of the marriage;
• The age, and physical and emotional condition, of the spouse seeking maintenance;
• The paying spouse's ability to meet their own needs while paying maintenance;
• The conduct of the parties during the marriage; and
• Any other relevant factors the court identifies.

Because the statute lists factors rather than a formula, two Missouri cases with similar incomes can come out differently depending on how a judge weighs these considerations. If you are trying to estimate an amount, expect a range rather than a precise figure, and treat any online calculator promising an exact Missouri number with caution — the law does not work that way.

Modifiable vs. nonmodifiable — and when it must be decided

RSMo 452.335.3 requires the maintenance order itself to state whether the award is modifiable or nonmodifiable, and the court has the option to build in a termination date. This designation matters a great deal later: it controls whether either spouse can go back to court if circumstances change. If you are negotiating a settlement or awaiting a judgment, confirm which designation applies to your order — it will shape your options for years afterward.

Time-sensitive: when maintenance changes or ends

These are the facts most likely to catch people off guard, so flag them early:

• Modification requires a substantial, continuing change. Under Mo. Rev. Stat. § 452.370.1, a modifiable maintenance award can only be changed if the person asking shows changed circumstances so substantial and continuing that the existing terms have become unreasonable. A minor or temporary change in income is unlikely to meet this bar.
• Remarriage of the receiving spouse generally ends maintenance automatically. Unless the parties agreed otherwise in writing, or the judgment expressly says otherwise, the obligation to pay future maintenance terminates when the spouse receiving it remarries.
• Death of either spouse generally ends maintenance. Again, this default can be overridden only by a written agreement or an express provision in the judgment — so if you want maintenance to survive death or remarriage (or, conversely, want the default termination to clearly apply), make sure the judgment says so explicitly.
• Temporary maintenance is available while the case is pending. Under RSMo 452.315, a spouse does not have to wait for the final judgment to ask for support — temporary (pendente lite) maintenance can be requested while the dissolution case is still in progress.

Because these termination rules are automatic defaults that can be waived only through specific written language, review your judgment or settlement agreement carefully — or have it reviewed — before assuming maintenance will or won't continue past a remarriage or a death.

Filing timeline basics

Before a dissolution case can even move to judgment in Missouri, one spouse must have resided in the state for 90 days immediately before the case was filed, and the court cannot enter a final judgment until at least 30 days have passed since the petition was filed (RSMo 452.305). These are floor requirements, not guarantees of speed — actual case timelines vary by county and by how contested the case is, so confirm current local practice with your Missouri circuit court.

What you can do in Missouri

1. Check the two-part eligibility test first. Before assuming you qualify (or that your spouse doesn't), look honestly at property division and employability — both prongs of RSMo 452.335.1 must be met.
2. Gather documentation on the RSMo 452.335.2 factors. Pay stubs, tax returns, a list of marital and separate property, evidence of education or training needs, and records of the marital standard of living all speak directly to what a judge must weigh.
3. If you need support now, ask about temporary maintenance. You don't have to wait for the divorce to finalize; a request under RSMo 452.315 can be made while the case is pending.
4. Confirm the modifiable/nonmodifiable designation before you sign anything. Ask your attorney or review the proposed judgment specifically for this language, and for any provision addressing what happens on remarriage or death.
5. If circumstances have changed substantially, don't assume the order will just adjust itself. You generally need to file to modify a modifiable award and show the change is both substantial and continuing.
6. Confirm residency and timing with your circuit court clerk. The 90-day residency and 30-day pre-judgment waiting period under RSMo 452.305 are minimums — verify current local filing procedures before you file.
7. If maintenance is owed and the paying spouse files bankruptcy, know your protections. Federal law treats alimony/maintenance as a domestic support obligation that cannot be discharged in bankruptcy and is paid first among unsecured claims; property-settlement debts from the divorce are also generally non-dischargeable in a Chapter 7 case (11 U.S.C. §§ 507(a)(1), 523(a)(5), 523(a)(15)).

Not legal advice. This article explains general Missouri law for informational purposes only and is not a substitute for advice from a licensed Missouri attorney about your specific situation.