Updated 2026-09-22
Missouri call recording law
Missouri is a one-party consent state under Mo. Rev. Stat. § 542.402.
One-party consent.
What this means for a law firm
Because Missouri follows the one-party rule, your firm’s own participation in the call is enough to record it lawfully. The statute is aimed at someone outside the conversation intercepting it.
That is the floor, not the ceiling. A caller who later learns they were recorded without being told is a caller who does not retain you, and the call that crosses into an all-party state stops being a one-party question entirely.
The interstate problem is the real one. A firm in Missouri takes calls from outside Missouri, and courts have applied the stricter state’s rule in that situation. Announcing the recording on every call removes the question rather than answering it.
How ClerkBird handles it
ClerkBird opens every call with the same sentence, before it asks anything: “Thanks for calling [firm]. I’m an AI assistant, and this call is recorded. How can I help you today?”
That line is enforced in code. It is not a setting, and a firm cannot edit it out — which is the point: a disclosure that any customer can disable is not a compliance control. It also covers the second obligation, bot disclosure, which California and other states impose independently of recording law.
Firms that would rather not hold audio at all can set retention to zero, and ClerkBird keeps only the transcript.
Other one-party consent states
This page is a reference, not legal advice, and it is not a substitute for reading Mo. Rev. Stat. § 542.402. Statutes are amended and courts reinterpret them. Confirm the current rule with counsel licensed in Missouri before relying on it.