Missouri Name Change Laws: How to Legally Change Your Name

Missouri handles a legal name change as a circuit court petition, not an administrative filing. An adult files a verified petition under RSMo 527.270 in the circuit court of the county where they live, and a judge grants it once satisfied the new name is "proper and not detrimental to the interests of any other person." Missouri Supreme Court Rule 95 fills in most of the procedural detail the statute leaves out, including how minors petition, what public notice looks like, and how the court's final order is worded.

There is no single statewide filing fee. Missouri splits name-change cases across 46 separate circuit courts, and filing costs vary from one to the next, so what a petitioner pays in Springfield can look very different from what someone pays in Joplin or St. Louis. The rest of this page walks through the adult petition, the minor process under Rule 95, publication, the sex offender restriction, and how marriage and divorce affect a Missouri name.

Information last verified on 2026-08-11. This article has not yet been reviewed by a licensed lawyer.

How to Legally Change Your Name as an Adult in Missouri

To change your name as an adult in Missouri, you file a verified petition in the circuit court of the county where you live. Missouri's official petition form is CAFC401, Petition for Change of Name (For Adult Individual). Under Missouri Supreme Court Rule 95, as summarized by the courts' self-help resources, the petition itself is expected to state information such as your date and place of birth, your parents' names, your spouse's name if married, your children's names, whether you have previously changed your name, and whether any money judgment is pending against you; confirm the exact required contents against the current CAFC401 form when you file.

The statute does not set a minimum length of time you must have lived in the county before filing, only that you reside there. The grant standard comes from the statute itself: RSMo 527.270.1 directs the judge to order the change if satisfied that it "would be proper and not detrimental to the interests of any other person." Rule 95.04 restates the same test for the court.

RSMo 527.280 does not name a dollar figure or hand fee-setting to the circuits. It says only that fees in a name-change proceeding "shall be the same as are now or may hereafter be allowed in similar cases in said court, to be paid by the petitioner," which pins the cost to each court's existing schedule for comparable cases. Statutory clerk fees, locally set surcharges, and publication costs then differ across Missouri's 46 circuits, so there is no single number to budget for statewide. Verified examples from individual circuits include $207.50 in Greene County (which folds in the cost of publication), $127.50 in Jasper County, and $138.50 in Webster County. Contact your circuit clerk's office directly for the current fee where you plan to file, and ask about a fee waiver if you cannot afford it.

Changing a Minor's Name in Missouri

A parent, guardian, or near relative can petition to change a minor's name using the same Chapter 527 framework, but the consent and notice mechanics come from Rule 95.03 rather than the statute. Written consent is required from each known living parent. If a parent will not consent, the petitioner must serve that parent with the petition and mail notice of the hearing date, by registered or certified mail to their last known address, at least 30 days before the hearing.

The court applies the same "proper and not detrimental to the interests of any other person" standard used for adults, set by RSMo 527.270.1 and restated in Rule 95.04. Missouri's forms for a parent-filed minor petition include CAFC402 (Petition for Change of Name by Parent), CAFC411 (Petition, Consent and Order for Parent's Appointment as Next Friend), and CAFC412 (Consent to Minor Child's Change of Name), all available through the courts.mo.gov self-help library.

Publishing Notice of a Missouri Name Change

Missouri's publication rules come from two overlapping sources that describe the timing slightly differently. RSMo 527.290 says notice of the change must be published at least three times within 20 days after the order, in a newspaper in the petitioner's county (or a St. Louis or Jefferson City paper if no local one exists). Rule 95.05 separately calls for publication "at least once each week for three consecutive weeks" after the order, with proof filed with the clerk within 10 days of the final publication. Because the statute and rule frame the timeline a little differently, follow your local circuit clerk's specific instructions.

Domestic violence and child abuse victims are exempt from this entire step. RSMo 527.290(2) waives publication, and also bars Missouri's online case-information system from posting the change, for a petitioner who is a victim of a crime with an underlying act of domestic violence, a victim of child abuse under RSMo 210.110, or a victim of domestic violence as defined in RSMo 455.010.

Restrictions: The Sex Offender Registry

Missouri's one hard, categorical bar on a name change applies to anyone required to register under the state's sex offender registry law, RSMo 589.400 to 589.425. Under RSMo 527.270(2), a registrant cannot change their name for the entire period they are required to register. Filing anyway risks denial and does not pause or excuse the underlying registration duty.

That bar is recent. The Revisor's source note for RSMo 527.270 reads "(RSMo 1939 § 1706, A.L. 2026 H.B. 2637 & 3155 merged with S.B. 982)," meaning subsection 2 was added by the 2026 legislature and took effect on August 28, 2026. Anyone working from pre-August-2026 practice, including registrants who were told a petition was available to them, should treat the restriction as a change in the law rather than a longstanding rule. Apart from that specific bar, Missouri applies the same general "proper and not detrimental" standard to every petitioner, with no separate fraud-intent disclosure clause spelled out in the statute.

Name Change After Marriage in Missouri

No Missouri statute governs a name change at marriage. RSMo 451.160, titled "Names of children born before marriage shall be recorded," addresses only how the names of children born before the marriage get recorded with the marriage certificate; it does not create a spousal name-change right. In practice, a newly married person in Missouri changes their name at the Social Security Administration and the Department of Revenue using their certified marriage certificate as proof, without filing anything in court.

Name Change After Divorce in Missouri

Missouri has no explicit statutory right to restore a former name in a divorce. Chapter 452's judgment-content requirements (RSMo 452.305) and its provisions on separation agreements (RSMo 452.325) do not mention name restoration at all. Missouri courts nonetheless restore a maiden or former name as an exercise of general equitable authority when the request is made in the dissolution petition and addressed in the judgment, following consistent practitioner practice rather than a codified statute. Someone who did not ask during the divorce, or whose decree did not address it, can still use the standard Chapter 527 petition process described above once the divorce is final.

A sealed state record, or the RSMo 527.290 publication exemption described above, does not automatically make a name change confidential with the Social Security Administration, the State Department's passport office, or other federal agencies. A domestic violence or child abuse survivor changing their name in Missouri should also look at the state's Safe at Home Address Confidentiality Program (RSMo 589.663 et seq., administered by the Secretary of State), which substitutes a mailing address for program participants but does not itself seal a name-change court file.

Related Missouri Records

A Missouri name change often comes up alongside other record-related questions. See Missouri marriage and divorce records for how to document a maiden-name restoration, Missouri court records for how sealed name-change files fit into the state's broader court-records rules, and Missouri divorce laws for the dissolution process itself.

For the national picture on filing costs, see how much does it cost to change your name. For the general step-by-step process, see how to legally change your name, and for updating your accounts and IDs afterward, see the name change checklist. For how marriage and divorce name changes work nationally, see name change after marriage and name change after divorce. For every state's process side by side, see name change laws by state.

Disclaimer

This article provides general information about Missouri name-change law. It is not legal advice and does not create an attorney-client relationship. Fees, forms, and court procedures change, and vary by circuit; verify current details with your Missouri circuit court clerk or a licensed Missouri attorney before relying on anything here for a specific filing.

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Last updated: 2026-08-11. Fees and forms reflect their published status as of August 2026.

Frequently Asked Questions

How much does it cost to change your name in Missouri?

There is no statewide fee. RSMo 527.280 sets a name-change fee at whatever the court already allows in similar cases, and clerk fees, local surcharges, and publication costs differ across Missouri's 46 judicial circuits. Verified county examples range from about $127.50 in Jasper County to about $207.50 in Greene County. Confirm the current fee with your circuit clerk.

Do I have to publish notice of my Missouri name change?

Generally yes. RSMo 527.290 requires publication at least three times within 20 days after the order, and Rule 95.05 describes it as once a week for three consecutive weeks. Domestic violence and child abuse victims are exempt from publication and from the online case-posting system.

Can a registered sex offender change their name in Missouri?

No. RSMo 527.270(2) bars anyone required to register on Missouri's sex offender registry from changing their name for as long as the registration requirement lasts. The Missouri legislature added that subsection in 2026, effective August 28, 2026, so it is a recent change rather than a longstanding rule.

How do I change my name after getting married in Missouri?

There is no court process. You use your certified marriage certificate as proof to update your name with the Social Security Administration, the Department of Revenue, and other agencies.

Does a Missouri divorce automatically restore my former name?

Only if you ask and the court addresses it in the judgment. No Chapter 452 statute creates the right, but Missouri courts routinely grant the request as a matter of practice. If it was not addressed in your decree, you can still file the standard Chapter 527 petition afterward.

How does a minor's name change work in Missouri?

A parent files under Missouri Supreme Court Rule 95.03, with written consent from each known living parent, or, for a non-consenting parent, service of the petition plus mailed notice of the hearing at least 30 days ahead.