The basic split
One-party consent means one participant's consent is enough to record legally. If you're on the call, that's you. This is the federal standard and the rule in most US states, and it's also Canada's rule under s.184(2)(a) of the Criminal Code.
All-party consent means everyone on the call has to agree. Twelve US states work this way: California, Connecticut, Delaware, Florida, Illinois, Maryland, Massachusetts, Montana, New Hampshire, Oregon, Pennsylvania and Washington.
The penalties in those states are not administrative. Illinois treats unlawful recording as a Class 4 felony. Pennsylvania and New Hampshire carry maximum terms of seven years. Our state-by-state guide has the full table.
Calls that cross state lines
This is where people get caught, and it's routine in construction — you're in one state, your supplier is in another.
The safe assumption is that the stricter rule applies. A contractor in Texas (one-party) calling an owner in California (all-party) should treat it as a California call. Whether a particular court would apply the caller's law or the recipient's is a genuinely contested question, and "I assumed my state's rule governed" is not a position you want to be arguing from.
A practical consequence: if your work regularly crosses into all-party states, the simplest policy is to disclose on every call. It removes the need to check where the other person is standing.
Worth knowing: Apple's built-in call recording on the iPhone plays an audible notice to both parties when you start recording, and it can't be disabled. That handles disclosure automatically. Whether the other party's silence after hearing it counts as consent in an all-party state is a separate question — see below.
Does saying it count as consent?
Notice and consent aren't the same thing, and this trips people up.
In many all-party jurisdictions, consent can be implied: if a person is clearly told the call is being recorded and continues talking, courts have often treated that as consent. That's the theory behind every "this call may be recorded" announcement you've ever heard.
But implied consent depends on the notice being clear, given before recording starts, and unambiguous enough that continuing to talk really does signal agreement. A mumbled aside halfway through the call is weaker than a clear statement at the top.
The stronger position, and the easier one, is to get an actual yes. It takes four seconds.
How to ask without making it weird
The worry is that asking sounds adversarial — like you're building a file on someone. In practice it doesn't, as long as you say it early and casually and give a reason that's obviously about you rather than about them.
First ten seconds of the call
"Hey Marcus — heads up, I record my work calls so I don't lose the details. That alright with you?"
Then wait for the yes. Three things make this work: it's early, so nothing has been captured yet; the reason is your own memory, not their trustworthiness; and it's a question rather than an announcement, which is what actually gets you consent rather than notice.
If someone says no, that's fine — don't record, and say so. Nobody has ever been offended by "no problem, I'll just take notes."
Where it's more sensitive than a work call
Consent law isn't the only consideration. Some conversations carry extra weight regardless of your state's rule:
- Anything with a lawyer. Recording a privileged conversation is a bad idea for reasons beyond consent.
- Medical, financial or HR conversations. Other privacy regimes may attach.
- Calls involving employees about employment. Employment law adds its own layer.
- Anyone who has already said no. Obvious, but worth stating: recording someone who declined is the worst version of this.
This is the practical argument for being able to exclude specific contacts from recording entirely, rather than deciding call by call — a decision made once is more reliable than one you have to remember under pressure.
The short version
Most of the time, in most places, you don't have to tell anyone. In twelve states you do, and the consequences there are criminal. Crossing state lines, assume the stricter rule.
And the practical answer for anyone doing this at work regularly: just say it. Ten seconds at the top of the call, every call, removes the entire problem — the jurisdictional question, the implied-consent question, and the awkwardness of being asked later why you didn't mention it.
Common questions
Do you legally have to tell someone you are recording a phone call?
In most US states and throughout Canada, no — you are a party to the conversation and your own consent suffices. Twelve US states require every participant to consent: California, Connecticut, Delaware, Florida, Illinois, Maryland, Massachusetts, Montana, New Hampshire, Oregon, Pennsylvania and Washington.
What happens if you record a call in a two-party consent state without permission?
These are criminal statutes, not civil ones. Illinois treats it as a Class 4 felony; Pennsylvania and New Hampshire carry maximum terms of seven years. Civil liability to the recorded party may also follow.
Which state's law applies when a call crosses state lines?
It's a genuinely contested question, and the safe assumption is that the stricter state's rule governs. If you're in a one-party state calling someone in an all-party state, treat the call as requiring all-party consent.
Does an announcement that a call is recorded count as consent?
Notice and consent aren't identical, though many jurisdictions recognize implied consent when someone is clearly told recording is occurring and continues the conversation. That depends on the notice being clear and given before recording starts. Getting an explicit yes is stronger and takes a few seconds.
How do you ask to record a call without making it awkward?
Say it in the first ten seconds, give your own memory as the reason rather than implying distrust, and phrase it as a question: 'I record my work calls so I don't lose the details — that alright with you?' Then wait for the answer.
Stop losing the details between calls.
Iron Notes records your work calls and voice notes and sends you a plain recap — what was said, who owes what, and what's next. Free for 30 days.
See how it worksRecording laws change and vary by jurisdiction. This is general information, not legal advice. If you record calls regularly for work, it's worth a short conversation with an attorney in your state.