AI receptionist disclosure: should it say it's an AI?

Yes, in the first sentence and every time a caller asks. What the 2026 rules in the US, UK and EU say, what callers do, and the four moments that matter.

Ivar André KnutsenAI systems and workflow automation9 min read
AI receptionist disclosure: should it say it's an AI?: cover

Yes. An AI receptionist should say it's an AI in its first sentence and tell the truth whenever a caller asks. The EU requires it. Maine requires it if a caller could mistake it for a person, Utah requires a straight answer when asked, and the UK regulator expects it. Say it up front and never deny it. That one script fits all four, and it costs about a second.

I'm a plumber who builds AI phone receptionists for trade firms in the US and the UK. My first client, a plumbing company, goes live this month. I've written about whether customers mind an AI answering and which voice and greeting to pick. This post is what those skipped: the rules as of October 2026, what callers do once they're told, and the four moments on a call where the AI's honesty gets tested. I'm not a lawyer, so check anything here with your own advisor.

The rules in October 2026 fit in one table

What matters is where your callers are, not where your vendor is based.

Where your callers are What the rule says What it means on the phone
EU AI Act Article 50: people must be told they're dealing with an AI at the latest at the first interaction, unless it's obvious. It took effect on schedule on 2 August 2026. Say it in the greeting
UK CMA guidance, March 2026: if knowing it's AI might affect a customer's decisions, tell them Say it in the greeting, and don't oversell what it can do
Maine 10 MRSA 1500-DD: covers voice as well as text; clear notice if a reasonable consumer could think it's human Say it in the greeting
Utah Utah Code 13-77: must admit it's AI when clearly asked; safe harbor if it says so at the outset and throughout Say it at the start and every time it's asked
California Bot law definitions are written for online accounts on websites and apps Unclear for a phone line, so ask a lawyer
Colorado The 2024 AI Act was repealed and replaced in May 2026 by a narrower law on automated decisions about jobs, housing, lending, insurance and the like Not aimed at a trade receptionist

Every rule that touches a phone receptionist lands on the same script: say it early, never deny it. None of them rewards hiding it. Other US states have bills moving, so check where you operate. More background on the EU, Utah and California laws is in the post on whether customers like AI answering.

For UK firms, the CMA guidance settles it. I couldn't find a UK statute that says "announce the robot". But the regulator has written down, in plain English, that you shouldn't let customers think a service is being provided by a real person when knowing it's AI could change what they decide. A homeowner choosing who to trust with a tripped board or a leak is making exactly that kind of decision.

Your AI's words are your words

Two of those sources say something that matters more than the disclosure itself. Utah's law says it is no defense that generative AI made the statement or did the act. The CMA says you are responsible for what an AI agent does in the same way you are responsible for what an employee does, even if someone else built it for you.

So when the AI tells a caller "someone will be there by four", you promised it. When it quotes the call-out fee you changed last month, you quoted it. Saying "I'm the AI assistant" at the start doesn't get you out of anything it says afterwards.

This is why mine catches the call, asks what, where and how urgent, hands it to you, and stops there. It does not book, quote or promise a time. Each of those would be your promise, made by a machine that can't see your van, your board, or the job that just turned into a full afternoon. The less it promises, the less it can get wrong in your name.

What callers do when they're told it's an AI

The fear is simple. Say "AI" and they hang up. There's some truth in it, but it comes from the wrong kind of call.

The study everyone quotes is a 2019 field experiment where a lender's bot rang customers to sell loan renewals. When it announced itself first, more than half of the people who answered hung up within five seconds. I went through it in the voice post. Those were sales calls nobody asked for. Your caller rang you, with water on the floor.

Closer to your situation, researchers at the University of Göttingen ran two online experiments in which about 200 people each read through a customer-service chat with an energy company. The bot introduced itself as "Leon". At the end, half were told Leon was a chatbot. When the request was high-stakes and the bot handled it, being told cost a little trust: 6.10 against 6.56 on a seven-point scale. When the bot failed, being told raised trust from 3.55 to 4.06, and with it their intention to stay a customer.

Read that as a tradesman. Your AI will get something wrong. It will mishear a street name or a letter in a postcode. A caller who knows it's a machine blames the machine and waits for your callback. A caller who thought "Leon" was a person, and finds out later, has two complaints instead of one.

People also want to be told. In a 2024 Salesforce survey of 15,015 people in 18 countries, including the US and the UK, nearly 75% said they want to know if they're talking to an AI agent, and 45% said a clear escalation path makes them more likely to use one. For a trade firm, the escalation path is you, ringing back.

Here's what AI can't do. It can't be sure the caller heard the disclosure. An 80-year-old on a crackly landline may miss "AI assistant" entirely, and the AI carries on as if they heard it. So the words go first and plain, not tucked into a long sentence, and a human calls back fast.

The four honest moments on every call

Disclosure isn't one line in the greeting. On a real call, honesty gets tested four times. I call them the four honest moments, and I script every one.

  1. The greeting. Who they've reached, that it's the AI assistant, what happens next: the who-what-next greeting, under eight seconds, set as a fixed message so it never changes. If you record calls, the recording notice goes here too; the UK and US versions are in the UK plumbers post.
  2. The question. "Am I talking to a real person?" The answer is one sentence of truth, then back to the job: "No, I'm the AI assistant for Dave's Plumbing. I'll get this to Dave now. What's the address?" No joke, no "I'm here to help", no change of subject. Utah requires a straight answer to a clear question, and its safe harbor asks for disclosure at the outset and throughout. I read that as: never contradict the greeting. Check that reading with your advisor.
  3. The limit. The caller asks for something only a person can give. A price, a time, "can you come now?" This is where AIs drift into promises. The script says what it can't do and who can: "I can't give times, I'm the AI assistant. Dave will ring you back with that." The CMA puts it as don't overstate what the AI can or cannot do.
  4. The callback. You ring back and own it: "Hi, it's Dave. You spoke to my AI assistant a few minutes ago, and I've got your notes." Don't pretend the AI was a colleague called Sarah. The caller hears that nothing was hidden and that a real person read what they said.

One more for US firms: keep the AI on the answering side. The FCC ruled in 2024 that AI-generated voices count as an "artificial" voice under the TCPA, so a call the AI makes needs the called person's prior express consent, absent an emergency or an exemption. Mine never rings out. The callback is a person, in their own voice. Texts and consent are covered in the TCPA post.

What disclosure costs, worked out

Owners worry that saying "AI" costs jobs. Run it both ways.

Say 60 calls a month reach your AI: after hours, plus the ones you can't grab on a job. "I'm the AI assistant" takes about a second and a half to say. That's 90 seconds of airtime a month.

Now the other way. Say one caller in ten asks whether it's a real person, and the AI dodges. That's six dodges a month. In Utah, the consumer protection division can fine up to $2,500 per violation. If each dodge counted as one, that's up to $15,000 a month on paper.

I don't expect a regulator to start with a plumber's phone line. The point is the ratio: ninety seconds of airtime against a five-figure risk, plus six callers who now doubt every word the AI told them. In the UK, the CMA's guidance reminds businesses that consumer law breaches can bring fines of up to 10% of worldwide turnover.

The bigger cost was never the fine. It's the job. For the other half of the sum, what a missed call is worth to you, the calculator runs it with your own numbers.

Do this this week

  1. Ring your own line from a phone it doesn't know. Count the seconds until it says "AI". If it never says it, that's your first fix.
  2. Ask whether it's a real person three ways: "Is this a robot?", "Am I talking to a human?", "Are you real?" Every answer should say plainly that it's the AI assistant, then go back to the job.
  3. Ask "can someone be here by four?" It should say it can't promise times and that a person will ring back. If it says yes, it just made a promise in your name.
  4. If it has a human name, swap it for a job title.
  5. Write your callback opener on a card in the van: "You spoke to my AI assistant a few minutes ago."
  6. Ask your vendor one question: does it ever make outbound calls? If yes, ask how consent is handled before you sign anything.

If you'd like a second pair of ears on your script, book a growth call. Thirty minutes, free. If your phone rings twice a day and you answer both, I'll tell you to keep your money. What I build for trade firms is on the AI phone receptionist page.

Questions people ask

Does an AI receptionist legally have to say it's an AI?

It depends where your callers are. The EU has required it since 2 August 2026. Maine requires it whenever a reasonable caller could mistake the AI for a person, and Utah requires a straight answer when a caller clearly asks. In the UK, the CMA's guidance says to tell people if knowing could affect their decisions. Saying it in the first sentence, and never denying it, fits all four. Check with your own advisor.

What should an AI receptionist say when a caller asks if it's a real person?

The truth in one sentence, then straight back to the job: 'No, I'm the AI assistant for Dave's Plumbing. I'll get this to Dave now. What's the address?' No joke, no dodge, no change of subject. Test it with three different phrasings, because real callers don't ask the way the vendor's demo does.

Will callers hang up if the AI says it's an AI?

Some will. The study people quote is a 2019 experiment where more than half hung up on an AI sales call that announced itself first, but those were outbound sales calls nobody asked for. Your caller rang you with a problem. In a 2024 Salesforce survey across 18 countries, nearly three in four people said they want to know when they're talking to an AI.

Can I give my AI receptionist a human name if it says it's an AI?

You can, and I wouldn't. A name like Sarah makes callers treat it as a person, ask for her next week and trust her promises. Maine's law turns on whether a reasonable caller could be misled, and a human name pushes that way. Give it a job title instead: 'the AI assistant for' and your company name.

Is my business responsible for what the AI receptionist says?

Yes. Utah's law says it's no excuse that the AI made the statement, and the UK's CMA says you're responsible for an AI agent the same way you are for an employee, even if a vendor built it. That's why mine doesn't book, quote or promise times. A promise from the AI is a promise from you.

Sources

  1. 1.EU AI Act, Article 50: Transparency obligations for providers and deployers of certain AI systems · 50(1): people must be informed they are interacting with an AI system unless obvious to a reasonably well-informed person; 50(5): clear and distinguishable, at the latest at the first interaction
  2. 2.Baker Botts: EU AI Act Article 50 transparency obligations go live (10 September 2026) · Article 50 took effect on 2 August 2026 as scheduled; the Digital Omnibus postponed high-risk requirements to December 2027 but left the Article 50 date in place
  3. 3.CMA: Complying with consumer law when using AI agents (9 March 2026) · Responsible for an AI agent as for an employee, even if a third party provides it; label it if knowing it's AI might affect decisions; do not overstate what it can or cannot do; human in the loop; fines up to 10% of worldwide turnover
  4. 4.Maine Revised Statutes, Title 10, section 1500-DD (PL 2025, c. 294) · Chatbot defined to include textual or aural communication; clear and conspicuous notice required if a reasonable consumer could be misled into thinking it is human; a violation is a violation of the Maine Unfair Trade Practices Act
  5. 5.Utah Code, Title 13, Chapter 77: Generative AI consumer disclosures and enforcement · 13-77-102: not a defense that generative AI made the statement; 13-77-103: disclose if the consumer clearly and unambiguously asks; 13-77-104: safe harbor for disclosure at the outset and throughout; 13-77-105: administrative fine up to $2,500 per violation
  6. 6.California Business and Professions Code, section 17940 (definitions for the bot disclosure law) · 'Bot' means an automated online account; 'online' means a public-facing website, web application or digital application
  7. 7.Colorado General Assembly: SB26-189, Automated decision-making technology · Became law 14 May 2026; repeals and reenacts the 2024 AI Act (SB24-205) around automated decisions on education, employment, housing, financial services, insurance, health care and government benefits
  8. 8.FCC Declaratory Ruling FCC 24-17: AI technologies and the TCPA (February 2024) · TCPA limits on artificial or prerecorded voice cover AI-generated voices; calls using them need the called party's prior express consent, absent an emergency purpose or exemption
  9. 9.Salesforce: State of the AI Connected Customer research (31 October 2024) · YouGov survey of 15,015 consumers in 18 countries including the US and UK, July to August 2024; nearly 75% want to know if they are communicating with an AI agent; 45% more likely to use one with a clear escalation path
  10. 10.Mozafari, Weiger and Hammerschmidt: Trust me, I'm a bot. Repercussions of chatbot disclosure in different service frontline settings (Journal of Service Management, 2022) · Two online experiments (201 and 197 participants), energy-provider chat with a bot called Leon, identity revealed at the end; high-stakes success: trust 6.56 undisclosed vs 6.10 disclosed; bot failure: 3.55 undisclosed vs 4.06 disclosed, with a positive indirect effect on retention
Ivar André Knutsen

Written by Ivar André Knutsen

I build and run AI systems, internal tools and workflow automation. You work directly with me from the first conversation through implementation and support. About Ivar

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