Missouri does not have divorce. It has dissolution of marriage, and the word matters more than it sounds — Chapter 452 uses that term throughout, and it is what you will see on every document.
Here is the actual sequence, the two deadlines that govern it, and one provision that changed last month and is missing from almost every other page on this topic.
The two numbers that matter
| Requirement | Statute | |
|---|---|---|
| 90 days | One party must have been a Missouri resident — or a servicemember stationed here — for ninety days immediately preceding the filing | § 452.305.1(1) |
| 30 days | Thirty days must have elapsed since the petition was filed before the court can enter judgment | § 452.305.1(1) |
Three things people get wrong about these:
- It is 90 days, not six months. The six-month figure is borrowed from other states and appears constantly in Missouri content.
- Only one party needs to satisfy residency, not both.
- The 30 days is a floor before judgment, not a target for finishing. A genuinely uncontested case with no children and no property might close near it. A contested one will not come close.
What the court has to find
Section 452.305.1(2): the court must find “that there remains no reasonable likelihood that the marriage can be preserved and that therefore the marriage is irretrievably broken.”
Section 452.305.1(3) adds that the court must also have considered and made provision for custody, child support, maintenance and the division of property, to the extent it has jurisdiction. A judge cannot dissolve the marriage and leave the rest for later.
Legal separation uses the mirror image: the court finds “that there remains a reasonable likelihood that the marriage can be preserved.” Same statute, inverted finding.
Missouri is a modified no-fault state, not a no-fault state
This is stated wrongly almost everywhere, including on sites that should know better.
Missouri is no-fault when nobody contests it. The moment one spouse denies under oath that the marriage is irretrievably broken, § 452.320.2 requires the petitioner to satisfy the court of one or more of five facts:
- Adultery, and the petitioner finds it intolerable to live with the respondent
- Behaviour such that the petitioner cannot reasonably be expected to live with the respondent
- Abandonment for a continuous period of at least six months
- Living separate and apart by mutual consent for twelve months
- Living separate and apart for at least twenty-four months preceding the filing
Fault also re-enters through the back door at property division: § 452.330.1(4) lists “the conduct of the parties during the marriage” as a factor the court weighs. So “Missouri is no-fault, conduct doesn’t matter” is wrong twice over.
Under § 452.320.2(2) the court may also continue the matter for a period and suggest counselling — but it cannot require counselling as a condition of granting a decree.
What goes in the petition
Section 452.310.1 requires the petition to be verified — sworn, not merely signed. Section 452.310.2 lists eight required items:
- Each party’s residence, including county, and length of residence in Missouri
- The date of the marriage and where it is registered
- The date the parties separated
- The name, age and address of each child, and which parent the child has primarily resided with
- Whether the wife is pregnant
- The last four digits of the Social Security number of the petitioner, respondent and each child
- Any arrangements as to custody, child support and maintenance
- The relief sought
New in August 2026: pregnancy no longer holds up a judgment
Item 5 above used to be a practical obstacle. Missouri courts commonly declined to finalise a dissolution while a party was pregnant, because paternity and custody could not yet be settled.
That changed. H.B. 1908 & 2337, effective 28 August 2026, added § 452.305.3:
“Pregnancy status shall not prevent the court from entering a judgment of dissolution of marriage or legal separation.”
The same language was written into § 452.310.2(5) as a proviso. The petition still has to disclose a pregnancy — that has not changed — but disclosure no longer stops the judgment.
This is roughly a month old. If you were told at some point that you would have to wait until after the birth, that advice may no longer be current, and it is worth asking again.
The sequence, start to finish
- Confirm residency. Ninety days, one party, county matters for venue.
- Gather documents before drafting. Marriage date and place, separation date, income for both parties, account statements, deeds, retirement statements, debts.
- File the verified petition in the circuit court. The 30-day clock starts here.
- Serve the other party, or have them sign an entry of appearance if it is cooperative.
- Exchange financial information. Income and expense statements and a property statement come from Missouri Supreme Court rules and local circuit rules rather than § 452.310, but they are required in practice.
- Parenting plan, if there are children. Each party proposes one; the court can adopt, modify or reject. Once it is in a judgment it is enforceable, and Missouri has a specific remedy if the other parent ignores it — see our article on the Missouri family access motion.
- Mediation. Most Jackson County family cases route through it.
- Settlement or trial. The large majority settle.
- Judgment. Not before day 30. It must include the last four digits of both parties’ Social Security numbers under § 452.305.4.
Where people actually go wrong
- Treating 30 days as the expected duration. It is the earliest possible date, not a forecast.
- Moving out without thinking it through. It affects the separation date, the status quo for custody, and who is paying for what in the interim.
- Emptying or hiding an account. It surfaces, and “conduct of the parties” is a statutory factor in how property gets divided.
- Assuming everything gets split down the middle. Missouri divides marital property in whatever proportions the court finds just. There is no 50/50 rule.
- Filing an unverified petition. Section 452.310.1 requires verification. A signature is not the same thing.
Frequently asked questions
How long does a Missouri divorce actually take?
An uncontested case with no children and little property can finish not long after the 30-day minimum. A contested case with custody and property disputes commonly runs six to twelve months or longer. The variable is agreement, not paperwork.
Do we both have to live in Missouri?
No. One party needs the 90 days.
What if my spouse won’t sign anything?
A dissolution does not require both signatures. It requires proper service. If your spouse denies the marriage is irretrievably broken, you move to the § 452.320.2 grounds above.
Can we use one lawyer between us?
No. A lawyer represents one party. The other may proceed without counsel, but should understand they are unrepresented.
Is Missouri a community property state?
No. Missouri divides marital property equitably rather than by fixed share.
Talk it through before you file
Troy J. Leavitt has handled Missouri dissolution cases in Jackson, Clay and Lafayette counties for more than 25 years, including time as a prosecutor. Most of what determines how a divorce goes is decided in the first three weeks — where you file, what the petition asks for, and what you do about living arrangements and accounts.
Read more about our divorce practice, contested and uncontested divorce, the Missouri divorce laws that apply, and our case results. Contact the firm or call (816) 228-6000.
This article is general information about Missouri law, not legal advice, and reading it does not create an attorney-client relationship. Statutes cited: §§ 452.305, 452.310, 452.320 and 452.330 RSMo. The pregnancy provision at § 452.305.3 was added by H.B. 1908 & 2337, effective 28 August 2026.
