Alimony in Missouri: how it works, what courts award, and how to plan

Last updated 2026-07-09

What is alimony called in Missouri, and what's the basic law?

Missouri calls it maintenance. Search the state's court forms or statutes for 'alimony' and you'll come up empty, so the word matters for practical reasons. The governing law is Missouri Revised Statutes Section 452.335, which sets out a two-step test a judge must run before awarding a dollar. ^[1]

Step one is a threshold. The spouse asking for maintenance has to show they lack enough property to meet their reasonable needs AND either can't support themselves through appropriate work, or is caring for a child whose circumstances make it appropriate that the parent stay home. That second prong carries weight. A spouse with no kids at home who's capable of working can be denied maintenance outright, even after a long marriage, though courts often still award it in those cases.

Step two kicks in once the threshold is met. The judge weighs a list of factors to set the amount and how long it runs. Missouri uses no formula. No percentage of income, no calculator, no multiplier for years married. That discretion is exactly why settling maintenance by agreement beats litigating it almost every time.

For a wider look at how maintenance and alimony work state by state, that overview covers the map.

What factors does a Missouri judge use to set the amount?

Section 452.335.2 lists the factors a judge has to consider. ^[1] Here's the full set:

• The financial resources of the spouse seeking maintenance, including marital property awarded and the ability to meet needs independently
• The time needed to acquire education or training for appropriate employment
• The standard of living during the marriage
• Duration of the marriage
• Age and physical and emotional condition of the spouse seeking maintenance
• The ability of the paying spouse to meet their own needs while paying maintenance
• The conduct of the parties during the marriage (Missouri lets fault into the maintenance analysis)
• Any other relevant factor

Conduct matters more here than in a pure no-fault state. A judge can cut or deny maintenance based on marital misconduct, including adultery. The Missouri Court of Appeals has upheld conduct-based adjustments in several cases, but no appellate decision has published a clean formula for how much an affair moves the number. It's discretion, not math.

The practical weight on each factor shifts by county and by judge. St. Louis County and Jackson County judges tend to be more predictable in long-marriage cases because those circuits generate more appellate precedent. Rural circuit judges have more room to swing.

How long does maintenance last in Missouri?

Missouri recognizes three kinds of maintenance by duration: temporary (during the divorce itself), short-term or rehabilitative (a bridge to self-sufficiency), and long-term or indefinite (long marriages, or where self-sufficiency isn't realistic). ^[1]

Temporary maintenance runs only until the final decree. You request it with a motion for temporary orders. It shows up most when one spouse was the breadwinner and the other has no independent income during the months the divorce takes to close.

Short-term maintenance usually runs one to five years and ties to a goal: finishing a degree, getting back into the workforce, or getting past a stretch of caring for young children. Courts sometimes attach conditions like school enrollment or a job search requirement, though those are hard to police in practice.

Long-term or indefinite maintenance is reserved for long marriages (Missouri practice generally treats 15-plus years as long, though the statute sets no minimum), big income gaps, or cases where age or health make self-sufficiency genuinely unlikely. 'Indefinite' isn't 'permanent.' Either spouse can go back to court and ask for a change when circumstances shift.

Uncontested divorces in Missouri usually finalize 30 to 90 days after filing, so temporary maintenance rarely lasts long in a truly agreed case. ^[2]

What are typical maintenance amounts in Missouri?

Nobody has good data on this. Missouri doesn't track or publish average maintenance awards, so there's no official number to cite. The closest proxies are surveys of family law attorneys and informal bench data from individual circuits, and both come with caveats.

From those informal sources, practitioners in the Kansas City and St. Louis metros describe awards in long marriages (over 15 years) with large income gaps landing commonly around 20% to 35% of the paying spouse's gross income, minus the receiving spouse's income. Take a marriage where one spouse earns $120,000 and the other earns nothing: awards often fall in the $2,000 to $3,500 a month range, depending on the specific factors. A shorter marriage with a smaller gap might produce $500 to $1,000 a month for two or three years.

Those are generalizations. Judges aren't bound by any of them.

One thing is certain. For divorces finalized after December 31, 2018, maintenance is taxable to neither party under federal law. The Tax Cuts and Jobs Act of 2017 killed the deduction for the paying spouse and the income inclusion for the receiving spouse for any agreement signed after that date. ^[3] That reshaped the math of negotiating maintenance, because the old tax arbitrage that once made larger awards palatable to paying spouses is gone.

Before you talk to a divorce attorney about your own numbers, pull your last three years of tax returns and your spouse's. That's the right first move.

Can spouses agree on maintenance without a judge deciding?

Yes, and most family lawyers will tell you it's the better road when both people are willing to negotiate honestly. Missouri courts fold a maintenance agreement negotiated by the spouses directly into the divorce decree. The agreement has to be in writing, signed by both parties, and submitted as part of the final settlement. ^[4]

A negotiated deal has two real advantages. You control the outcome instead of handing it to a judge who's never met you. And you can get creative in ways a court can't: a lump-sum buyout instead of monthly checks, duration tied to a specific event like a child finishing school, cost-of-living adjustments built in. Judges ordering contested maintenance rarely do any of that.

The biggest single decision in any maintenance agreement is whether to make it modifiable or non-modifiable. Under Missouri law, the parties can agree that maintenance is non-modifiable, meaning neither side can ever return to court to change it, no matter what happens. ^[1] That's a heavy choice. Non-modifiable maintenance buys certainty and gives up flexibility. If the paying spouse loses a job or the receiving spouse's income jumps, nobody can adjust the number. Think hard before you sign that.

For couples running their own uncontested divorce, DivorceClear's $149 document packet includes the separation agreement language you need to document a maintenance arrangement a Missouri court will accept. The forms are state-specific.

For the full picture of what goes into divorce papers in an uncontested case, that walkthrough covers the usual requirements.

How does Missouri treat temporary maintenance during the divorce?

While a divorce is pending, a spouse can file a motion for temporary maintenance in the circuit court where the case was filed. Missouri circuit courts have authority to enter temporary orders under Section 452.315. ^[5]

To get it, the requesting spouse files the motion, usually attaches an income and expense statement, and asks for a hearing. That hearing might land within a few weeks in some circuits, or take a couple of months in busier ones.

Temporary orders aren't final. They don't bind the decree. A judge who orders temporary maintenance of $1,500 a month might set something entirely different at trial, or the couple might settle on another figure. Temporary orders exist for one reason: getting both people through the waiting period without a financial collapse.

If your divorce is genuinely uncontested and you've both agreed on maintenance before filing, you skip the temporary motion. You file, submit your settlement agreement, wait out the mandatory 30-day period after service, and the agreed maintenance takes effect with the final decree. ^[2]

Can maintenance be modified or terminated later?

Yes, unless the original agreement locked it as non-modifiable. For modifiable maintenance, either spouse can file a motion to modify under Section 452.370 when there's been a "substantial and continuing change in circumstances" that makes the current amount unreasonable. ^[6]

What clears that bar? Missouri courts have found that a big jump in the paying spouse's income counts, as does a big rise in the receiving spouse's income or a drop from disability. A temporary layoff usually doesn't. Courts want changes that are reasonably permanent, not a single bad quarter.

Two things end maintenance automatically under Missouri law: the death of either spouse, and the receiving spouse's remarriage. ^[1] Cohabitation is murkier. Missouri has no statute that automatically cuts off maintenance when the receiving spouse moves in with a new partner, but courts have modified or ended awards where cohabitation clearly shrinks the recipient's needs. You'd still have to file a motion and prove the change.

If you're paying and your ex has remarried, get the marriage date documented and file to terminate right away. Payments made after a remarriage are generally not recoverable.

How does property division affect whether maintenance gets awarded?

Missouri is an equitable distribution state, which means courts split marital property fairly, and fair doesn't always mean 50/50. ^[7] What each spouse walks away with feeds straight into the maintenance analysis, because step one of the test asks whether the requesting spouse has enough property to meet reasonable needs.

A spouse who takes significant assets, say $200,000 in home equity plus half a retirement account, is less likely to get maintenance than one who leaves with little liquid property. Courts look at what the property can earn. A $200,000 investment account is assumed to throw off some return. A house someone plans to live in is not.

That sets up a real negotiating dynamic. A spouse who wants to keep the house and also wants maintenance may find a court treating those two asks as partly at odds. Trading some property claim for a longer or higher maintenance commitment, or the reverse, is a legitimate strategy.

In uncontested cases you set both property division and maintenance by agreement, so you're free to structure the tradeoff however fits your finances. No judge and no formula box you in.

What does it cost to handle maintenance in a Missouri divorce?

If you reach a maintenance agreement with your spouse and skip the lawyers, your out-of-pocket cost stays small. Missouri circuit court filing fees for a divorce run roughly $100 to $250 depending on the county. ^[8] Jackson County (Kansas City) sits toward the high end; smaller rural circuits run lower. Confirm the exact fee at your circuit clerk's office or on the court's website.

Contest maintenance and the cost climbs fast. A contested maintenance hearing in Missouri, counting attorney time to prepare, subpoena financial records, and argue the motion, commonly runs $3,000 to $10,000 or more per side, depending on complexity and how much discovery is involved. A full contested trial with maintenance as a central issue can hit $15,000 to $50,000 per side in metro areas.

For most couples with a clear income picture and a willingness to be reasonable, agreeing is far cheaper than fighting. The money you burn arguing over $500 a month often tops the extra maintenance itself inside the first year.

Divorce type	Approximate total cost (Missouri)	Maintenance decision
Uncontested, no attorney	$100-$400 (filing fees only)	By mutual agreement
Uncontested, document service	$149-$500	By mutual agreement
Uncontested, attorney review	$500-$2,000	By mutual agreement
Contested, settlement before trial	$5,000-$20,000 per side	Negotiated with attorneys
Contested, full trial	$15,000-$50,000+ per side	Judge decides

How does fault affect maintenance in Missouri?

Missouri is a no-fault divorce state, so you don't have to prove fault to get divorced. Fault still touches maintenance, though. Section 452.335.2 names "the conduct of the parties during the marriage" as a factor a court may weigh when setting the amount and duration. ^[1]

In practice, proven marital misconduct (adultery being the example raised most often) can shrink what a cheating spouse receives or lift what a cheated-on spouse receives, at the judge's discretion. Missouri appellate courts have upheld both results. The misconduct has to be shown with evidence, though. Accusations with no corroboration rarely move anything.

A fault finding doesn't automatically wipe out maintenance. A spouse who committed adultery can still receive it if the threshold test is otherwise met and the disparity is big enough. Courts balance misconduct against need. A spouse with no income, no work history, and three kids to raise is unlikely to be shut out entirely over an affair.

In uncontested divorces, fault barely surfaces. Both spouses typically file on irretrievable breakdown grounds and negotiate maintenance around financial reality instead of blame.

How do you actually request or agree to maintenance when filing in Missouri?

Filing without an attorney? Here's how the process actually runs.

Uncontested divorce with agreed maintenance: your petition for dissolution of marriage should state that you're seeking maintenance, even when it's already settled, because it has to appear in the pleading. Your separation agreement, also called a marital settlement agreement, spells out amount, duration, modifiability, and termination conditions. You file the petition and the agreement with the circuit court clerk, pay the filing fee, serve your spouse (or have them enter their appearance and waive service), wait out the mandatory 30-day period, and submit a proposed decree that incorporates your agreement. ^[2][4]

Contested request: the requesting spouse puts a maintenance request in the petition. The responding spouse can agree, propose a different number, or fight it. If it's contested, it usually resolves at a temporary hearing, in mediation, or at trial.

Missouri's self-help center for self-represented litigants has forms and instructions. ^[9] The Missouri Bar's lawyer referral service can connect you with an attorney for a limited-scope review if you want a professional set of eyes on your settlement agreement without paying for full representation.

DivorceClear's document packet covers Missouri-specific uncontested divorce paperwork, including the separation agreement, which is where your maintenance terms actually live. If the case is genuinely uncontested and the terms are agreed, the paperwork is manageable without a divorce lawyer.

What should you watch out for when negotiating maintenance on your own?

A handful of things trip people up.

Undervaluing long-term need. The lower-earning spouse often accepts a short maintenance term to close the deal fast, then hits a wall two years later when the payments stop and the job market hasn't opened up the way they hoped. If you're leaving a 20-year marriage with a large income gap, don't let the urge to be done push you into a term that strands you.

Ignoring retirement. When the paying spouse retires at 65, their income drops hard. Without a specific provision, they still owe the agreed amount until they go back to court and prove changed circumstances. You can negotiate a step-down or a termination tied to retirement age right in the agreement, which saves a fight later.

Forgetting the tax change. Post-2018 divorce agreements give the paying spouse no deduction, which shifts the after-tax cost of maintenance against a property settlement. A CPA or financial advisor can model this before you lock in numbers.

Signing non-modifiable terms without really getting them. Non-modifiable sounds good to the receiving spouse (security) and sometimes to the paying spouse (certainty). But life moves. Both sides need to understand that a non-modifiable agreement can't be touched even if one spouse gets seriously ill, loses a job through no fault of their own, or wins the lottery.

For background on the broader money side of divorce, the divorce rate in America data and the financial disputes behind it are useful context.

Frequently asked questions

Does Missouri have a formula for calculating maintenance?

No. Missouri courts use judicial discretion guided by the factors in Section 452.335, not a formula or percentage. Some states use income-share or percentage models. Missouri does not. Outcomes can vary a lot by judge and county, which is one strong reason to agree on maintenance with your spouse rather than leaving it to a judge to decide.

How long do I have to have been married to get maintenance in Missouri?

There's no minimum marriage length in Missouri law. Even short marriages can technically produce an award if the threshold test is met. In practice, courts rarely grant long-term or indefinite maintenance for marriages under five years. Duration is one factor among several, not a gate. A two-year marriage with a very dependent spouse might still produce short-term rehabilitative maintenance.

Does adultery affect maintenance in Missouri?

Yes, it can. Missouri law lists marital conduct as a factor in setting maintenance amount and duration. Proven adultery can reduce what the cheating spouse receives or increase what the cheated-on spouse receives. But misconduct doesn't automatically eliminate maintenance. Courts weigh it against financial need, so a dependent spouse who committed adultery may still receive some maintenance if the disparity is large enough.

Can I waive maintenance entirely in a Missouri divorce?

Yes. Both spouses can agree to waive maintenance in the separation agreement. Courts generally honor a waiver made knowingly and voluntarily. Waivers are usually non-modifiable by their nature, meaning neither party can come back later and ask for maintenance. If you're the lower-earning spouse waiving it, think hard about your long-term financial security before you sign.

What happens to maintenance if my ex-spouse remarries?

Maintenance ends automatically on the receiving spouse's remarriage under Missouri law. You don't need to file a motion. The obligation stops by operation of law on the date of the new marriage. If your ex remarries and doesn't tell you, payments made after that date are generally not owed and recovering them is difficult. Document the remarriage date and stop paying promptly.

Can maintenance be paid as a lump sum in Missouri?

Yes, by agreement. Nothing in Missouri law stops the parties from agreeing to a lump-sum maintenance payment instead of monthly installments. Courts can order a lump sum in some cases too. A lump sum offers finality and sidesteps enforcement headaches with monthly checks. Under current federal tax law (post-2018), lump-sum maintenance carries the same neutral tax treatment as periodic payments.

How is maintenance different from child support in Missouri?

Maintenance goes to a spouse. Child support goes to the custodial parent for the child's benefit. Missouri uses the Form 14 income shares model to calculate child support, a formula based on both parents' incomes and parenting time. Maintenance has no formula. They're separate obligations, taxed differently (child support is neither deductible nor taxable income), and governed by different statutes.

What counts as a 'substantial and continuing change' to modify maintenance?

Under Section 452.370, Missouri courts require the change to be both substantial in degree and reasonably permanent, not temporary. Examples courts have accepted include large permanent income increases or decreases for either party, disability, or retirement. A temporary layoff or short illness usually doesn't qualify. The standard is deliberately high to prevent constant return trips to court over minor swings.

Can I get maintenance if I was a stay-at-home parent?

Yes, and this is one of the clearest cases for maintenance under Missouri law. Section 452.335 specifically names custodial parents whose circumstances make it appropriate not to work outside the home as meeting the threshold. Even with older children, a long employment gap, outdated skills, and primary caregiver status all support a claim. Courts weigh how long it will take to re-enter the workforce at a reasonable wage.

Does cohabitation end maintenance in Missouri?

Not automatically. Missouri has no statute terminating maintenance on cohabitation, unlike some states. A paying spouse would have to file a motion to modify and prove that the receiving spouse's cohabitation substantially reduces their financial need. Courts have modified or ended awards in these situations, but it takes litigation. The safer route is to include a cohabitation termination clause in your original separation agreement.

Where can I get free help with Missouri divorce forms?

Missouri's state court system runs a self-help center for self-represented litigants with forms and instructions. The Missouri Bar's lawyer referral service can connect you with an attorney for limited consultations. Many circuit court clerks can tell you which forms are required, though they can't give legal advice. Legal aid organizations in Kansas City and St. Louis serve lower-income filers.

How do I enforce a maintenance order if my ex stops paying?

File a motion to enforce or a motion for contempt in the circuit court that issued the original decree. Missouri courts can hold a non-paying spouse in contempt, which can mean wage garnishment, seizure of tax refunds, and in extreme cases jail. If your ex has moved out of state, you can register the Missouri order there under the Uniform Interstate Family Support Act and enforce it in that state.

Sources

1. Missouri General Assembly, RSMo Section 452.335 (Maintenance of spouse): Missouri's two-step maintenance threshold test, list of factors for amount and duration, and provisions for non-modifiable agreements and automatic termination upon remarriage
2. Missouri Courts, Self-Represented Litigants: Divorce Overview: Missouri's 30-day mandatory waiting period after service before a divorce can be finalized; typical uncontested timeline of 30 to 90 days
3. IRS, Publication 504: Divorced or Separated Individuals: Tax Cuts and Jobs Act of 2017 eliminated the maintenance deduction for the paying spouse and income inclusion for the receiving spouse for divorce agreements signed after December 31, 2018
4. Missouri General Assembly, RSMo Section 452.325 (Separation agreements): Missouri courts will incorporate a written maintenance agreement signed by both parties into the divorce decree
5. Missouri General Assembly, RSMo Section 452.315 (Temporary orders during dissolution): Missouri circuit courts have authority to enter temporary maintenance orders while a dissolution proceeding is pending
6. Missouri General Assembly, RSMo Section 452.370 (Modification of maintenance): Either spouse may file a Motion to Modify Maintenance upon a substantial and continuing change in circumstances that makes the current amount unreasonable
7. Missouri General Assembly, RSMo Section 452.330 (Division of marital property): Missouri is an equitable distribution state; courts divide marital property fairly based on multiple factors, not necessarily equally
8. Missouri Courts, Circuit Court Filing Fees Schedule: Missouri circuit court filing fees for a dissolution of marriage range from approximately $100 to $250 depending on the county
9. Missouri Courts, Self-Help Center for Self-Represented Litigants: Missouri's state courts self-help center provides forms and instructions for self-represented litigants filing their own divorce
10. IRS, Tax Cuts and Jobs Act: Provisions Affecting Individuals: Post-2018 maintenance agreements have neutral tax treatment for both payer and recipient, eliminating the prior deduction-inclusion framework