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Rule 90.09.Claims of Third Parties--Notice--Intervention.

Part III · Rule 90: Garnishments and Sequestration · Last amended January 1, 1999 · Last verified July 22, 2026

In one sentenceRule 90.09 requires the garnishor to notify, by certified mail, any third party whom the garnishee's interrogatory answers reveal as claiming an interest in the garnished property, and lets that person intervene in the garnishment case, generally within 15 days of receiving notice.

Full Text of Rule 90.09

Text sizeJump to: (a) (b)

(a) Notice to Third Parties. If the garnishee’s answers to interrogatories disclose that any person other than the debtor and the garnishor claims an interest in all or part of the property subject to garnishment, then the garnishor shall attempt to notify such person of the pendency of the garnishment proceeding and of the right to intervene therein within the time allowed in Rule 90.09(b). Such notification shall be served by mailing the notice by registered or certified mail, requesting a return receipt signed by the addressee only, to the last known address, if any, of each such person disclosed in the garnishee’s answers to interrogatories within ten days after service of the garnishee’s answers to interrogatories.
(b) Intervention. Any person who claims an interest in the property subject to garnishment may intervene pursuant to Rule 52.12. Persons notified of the garnishment proceeding as provided in Rule 90.09(a) shall move to intervene within fifteen days after receiving the notice.

Amendment History

Adopted May 15, 1998, eff. Jan. 1, 1999.

Plain-English Summary

Garnished property does not always belong only to the debtor. When a garnishee’s interrogatory answers reveal that someone else — not the debtor and not the garnishor — claims an interest in all or part of the property, Rule 90.09 requires the garnishor to try to bring that person into the case. Notice goes out by registered or certified mail, addressed to that person’s last known address as disclosed in the garnishee’s answers, and it must ask for a return receipt signed by the addressee alone. The garnishor has to send this notice within ten days after the garnishee’s answers to interrogatories are served.

Once notified, the third party has a real chance to protect that interest by intervening in the garnishment proceeding under the general rule governing intervention. The rule sets a clock on that opportunity, too: anyone notified under Rule 90.09(a) must move to intervene within fifteen days of receiving the notice.

This process matters because a garnishment judgment can otherwise resolve competing claims to the same property without the true owner ever getting a say. By requiring notice and giving a defined window to intervene, Rule 90.09 gives a third-party claimant a real chance to be heard before the court decides who gets the garnished property.

Frequently Asked Questions

Who must the garnishor notify under Rule 90.09?

Anyone the garnishee’s interrogatory answers identify as claiming an interest in all or part of the property subject to garnishment, other than the debtor and the garnishor.

How must that notice be sent?

By registered or certified mail, requesting a return receipt signed by the addressee only, to the last known address disclosed in the garnishee’s answers.

How quickly must the garnishor send the notice?

Within ten days after the garnishee’s answers to interrogatories are served.

How does a third party protect a claimed interest once notified?

The third party may intervene in the garnishment proceeding under the general intervention rule, and must move to intervene within fifteen days of receiving the notice.

What happens if a third party with a claimed interest is never identified in the answers?

The notice duty under Rule 90.09 is triggered by disclosures in the garnishee’s interrogatory answers, so it applies only to interests the answers themselves reveal.

Source & verification. Rule text and amendment history are reproduced verbatim from the Missouri State & Federal Court Rules, adopted by the Supreme Court of Missouri. Last verified July 22, 2026. · Official source
Also known as: third party claim garnishmentintervention in garnishment casenotice to third party garnisheecompeting claims garnished propertycertified mail garnishment notice