SupportDecode

Reviewed for current 2026 law

Missouri Alimony Calculator

Missouri law calls alimony maintenance. A court first decides whether a spouse qualifies, then sets a just amount and length after weighing ten factors.

Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log

maintenance calculator

No statewide dollar formula

No invented award amount

No responsible dollar estimate is available

MO sets alimony by judicial discretion; there is no statutory formula. Courts weigh the enumerated factors below.

Factors the court weighs instead

  1. 1Seeking spouse’s resources, apportioned property, needs, and child-custodian support
  2. 2Time needed for education or training
  3. 3Comparative earning capacity
  4. 4Marital standard of living
  5. 5Each party’s obligations, marital property, and separate property
  6. 6Marriage duration
  7. 7Seeking spouse’s age and physical and emotional condition
  8. 8Paying spouse’s ability to meet both parties’ needs
  9. 9Conduct during the marriage
  10. 10Any other relevant factor

Mo. Rev. Stat. § 452.335.2

Duration limits

  • Threshold findings: Maintenance is available only after findings that the seeking spouse lacks sufficient property for reasonable needs and cannot self-support through appropriate employment, or appropriately remains home as a child’s custodian.
  • Term and modification: The court sets a just amount and period and states whether the order is modifiable or nonmodifiable; a dated modifiable order may be changed for a substantial and continuing change before termination.
  • Default termination: Unless agreed in writing or expressly provided in the judgment, future statutory maintenance ends on the death of either party or the remarriage of the recipient.

Mo. Rev. Stat. §§ 452.335.1, 452.335.3, and 452.370.3

Assumptions

  • This tool does not estimate a dollar amount for discretionary states: any number would be invented.
  • Missouri supplies threshold findings and ten factors, not a mandatory statewide dollar formula.

Estimate only. The court or state agency calculation controls.

Missouri alimony under Mo. Rev. Stat. § 452.335.

Maintenance starts with two required findings

Under Mo. Rev. Stat. § 452.335, a court may order maintenance for either spouse, but only if the spouse asking for it lacks enough property, including the marital property awarded in the divorce, to meet reasonable needs.

That spouse must also be unable to support themselves through appropriate employment, or be the custodian of a child whose condition or circumstances make it appropriate not to work outside the home. Both findings come before any amount.

Amount and length come from ten factors, not a formula. The court orders what it deems just after weighing resources and needs, time needed for education or training, each spouse’s earning capacity, the marital standard of living, debts and assets, marriage length, age and health, the paying spouse’s ability to meet their own needs, conduct during the marriage, and any other relevant factor.

Every order must say whether it is modifiable or nonmodifiable, and it may include an end date. Unless agreed in writing or stated in the judgment, future maintenance ends when either party dies or the recipient remarries, under § 452.370.

Authority
Mo. Rev. Stat. § 452.335source
Threshold findings
Two: unmet reasonable needs and inability to self-supportsource
Dollar formula
None statewidesource
Order must state
Modifiable or nonmodifiable, § 452.335.3source
Ends by default
Death of either party or the recipient’s remarriagesource
During the case
Temporary maintenance by motion with an affidavitsource

Do not skip eligibility

Start with the two threshold findings. Gather proof of reasonable monthly needs, the property each spouse will receive in the divorce, work history and job prospects, and any child-care circumstance that makes working outside the home inappropriate.

Then organize evidence by factor. The court weighs all ten, including the paying spouse’s ability to meet their own needs, so both budgets matter.

What this estimate includes

  • Eligibility test
  • Ten-factor checklist
  • Temporary maintenance, modification, and termination rules

What it leaves out

  • Fabricated dollar award
  • Outcome prediction
  • Property division

Missouri maintenance calculator FAQs

Is there a Missouri maintenance formula?

No. Section 452.335 sets two threshold findings and ten factors, then leaves the amount and period to what the court deems just. No statewide percentage or chart applies.

Who can get maintenance in Missouri?

Either spouse, but only after the court finds both that the spouse lacks enough property to meet reasonable needs and that they cannot support themselves through appropriate employment or should stay home to care for a child.

How long does maintenance last in Missouri?

As long as the order says. Missouri has no duration table. The court sets the period it deems just, may include a termination date, and weighs the length of the marriage as one of the ten factors.

Can I get temporary maintenance while the divorce is pending?

Either party may ask. Under § 452.315 the motion must include an affidavit stating the facts and the amounts requested, and a temporary order ends when the final judgment is entered.

Does marital misconduct matter?

It can. Conduct of the parties during the marriage is one of the ten factors.

Can Missouri maintenance be changed later?

A modifiable order can be raised, lowered, ended, or extended after changed circumstances so substantial and continuing that the terms become unreasonable, § 452.370. A nonmodifiable order cannot be changed that way. A modification reaches only installments that come due after the motion is served.

Does remarriage end maintenance in Missouri?

Yes, unless the parties agreed otherwise in writing or the judgment says otherwise. Section 452.370.3 ends future statutory maintenance at the recipient’s remarriage or the death of either party.

What if the recipient lives with a new partner?

Living together does not end maintenance automatically. When deciding whether circumstances changed, the court considers how far a person the party lives with shares their reasonable expenses.

Is maintenance taxable?

Not federally for newer orders. For divorce or separation agreements signed after 2018, the payer cannot deduct maintenance and the recipient does not report it as income, according to IRS Topic 452.

Why does this page show no dollar amount?

Because Missouri law contains no formula. Any number would have to come from somewhere other than the statute that decides your case.

Official sources

Official sources last verified: .

Changelog: page reviewed . Material changes appear in the update log.