Recording consent law in Massachusetts
Massachusetts is subtly different from the other all-party states: its law bans secret recording, so open recording is lawful even if someone doesn't affirmatively agree.
General information, not legal advice. Recording law turns on facts — where each person physically is, whether the exchange counts as oral or electronic, and what your profession separately requires. If the answer matters, ask a lawyer licensed in Massachusetts.
Short answer: Massachusetts (Mass. Gen. Laws ch. 272, § 99) prohibits secretly recording a wire or oral communication. The operative element is secrecy, not consent — if everyone is aware recording is happening, there is no interception and no violation, even without affirmative agreement. Secret recording is a felony.
At a glance
| Statute | Mass. Gen. Laws ch. 272, § 99 |
|---|---|
| Applies to | Both in-person and telephone / electronic communications |
| Criminal penalty | Felony for unlawful interception — up to 5 years in state prison (or up to 2.5 years in a house of correction) and/or a fine up to $10,000. |
| Civil liability | Yes, under § 99(Q) — actual damages but not less than liquidated damages of $100 per day or $1,000, whichever is higher, plus punitive damages and attorney's fees. |
The detail that catches people out
This is the distinction worth getting right, because it's different from every other state on this list. Massachusetts does not, in strict terms, require consent. It prohibits secret recording — the statute defines interception as secretly hearing or recording a communication.
The practical effect: if the recording is open and known to everyone present, there is no violation, even if a participant never says “yes, go ahead.” They simply can't be kept unaware. In Commonwealth v. Hyde (2001) the Supreme Judicial Court upheld the conviction of a driver who secretly recorded police during a stop, holding the statute has no exception even for recording on-duty officers — what mattered was the secrecy.
Later federal decisions have carved out First Amendment protection for openly recording police in public, but the core rule for private conversations stands: don't record secretly.
What this means for AI meeting notes
In Massachusetts the safe rule is simply to record in the open. Announce it, make sure everyone knows, and you're outside the statute — you don't need each person to affirmatively agree, only to be aware. A hidden recording, by contrast, is a felony.
Two things worth separating. Whether a recording bot is visible in the attendee list has no bearing on any of the above — the statute governs the recording, not how obvious your tooling is. And where the recording is processed is a different question again: Massachusetts law decides whether you may record at all, while your duty of confidentiality decides who may then receive it.
A tool that captures audio through your own machine and processes it locally, like Oats, removes the second problem and leaves the first entirely intact. You still need whatever consent Massachusetts requires.
If people are in different states
A call with someone in a one-party-consent state and someone in Massachusetts is not a one-party call. Standard conservative practice is to comply with the strictest rule represented on the call — get everyone's agreement, out loud, and note that you got it. See our overview of US recording consent law for the wider picture and the other all-party states.
Sources: Mass. Gen. Laws ch. 272, § 99. Commonwealth v. Hyde. RCFP — Massachusetts. Verified July 2026. Laws change — check the primary source before relying on this.
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