AI receptionist for small business: what it costs and how to set one up

Every call you miss during a busy week is a client who may ring the next business on the list. An AI receptionist for small business answers, books and takes messages for less than a part-time hire, but the price on the sales page is rarely what you pay. This guide explains how it works, what it really costs at your call volume, and the rules to check before it picks up.

It names the main services and how each one charges, and gives you the questions to judge any of them. The worked example is an accounting firm in tax season, but the steps apply to any small business that lives on the phone.

How an AI receptionist works

An AI receptionist is software that answers your business calls with a natural-sounding voice. It answers common questions from your own information, takes messages, books appointments into your calendar, and sends you a summary. Urgent or complex calls go through to a person.

A typical call runs like this:

1. The call comes in. You keep your existing number and forward calls to the service, either all of them or only the ones you don’t answer.
2. It greets the caller. The greeting names your business and says the caller has reached an automated assistant.
3. It answers or acts. It answers questions from the information you gave it, takes a message, or books an appointment.
4. It transfers when it should. Rules you set decide which calls go to a person, such as urgent issues, upset callers or anyone who asks for a human.
5. It sends a summary. After the call you get the caller’s name, number, reason for calling and what was agreed, usually by email or text, often with a transcript.

The quality of the answers depends on what you feed it. A short, accurate information sheet beats a long one full of exceptions.

What it can and can’t handle

Handles well	Needs a person
Opening hours, location and parking	Complaints and upset callers
What services you offer	Advice of any kind: tax, legal, medical, financial
Booking, moving and cancelling appointments	Anything involving money, payments or account details
Taking messages with the reason for the call	Detailed questions about a client’s own file
Simple intake questions for new enquiries	Negotiating fees or scope
Screening spam and sales calls	Callers who clearly want a human

A useful rule: if a wrong answer could cost the caller money or break a rule you’re bound by, the call goes to a person.

What an AI receptionist costs

Prices change too often to quote, and plans are hard to compare because services bill in different ways. These are the four common models:

Billing model	How you’re charged	Best for	Watch out for
Per minute	A rate for every minute the assistant is on a call	Short, simple calls	Long calls and callers on hold add up fast
Per call	A fee for each call answered	Steady call volume with varied length	Spam and wrong numbers may still count as calls
Per caller	A fee for each unique caller in a month	Repeat callers, such as clients ringing back	How “unique” is defined
Flat fee with a cap	A monthly price that includes a set number of minutes or calls	Predictable budgets	The overage rate once you pass the cap

What pushes the price up:

• Call length. A three-minute average costs three times a one-minute average on a per-minute plan.
• Overage rates. The price per minute or call beyond your plan is often much higher than the included rate.
• Extra numbers and languages. Each extra line or language can be an add-on.
• Busy seasons. If your calls double in a peak month, a capped plan can jump in price that month.

A worked example (illustrative numbers only). Say a business gets 100 calls a month, averaging two minutes each: 200 minutes. On a per-minute plan, you multiply 200 by the rate. On a per-call plan, you multiply 100 by the fee. On a capped plan, check that 200 minutes fits inside the cap with room for a busy month. Run the same numbers through every option you’re considering, using your own call log rather than the example.

Compared with the alternatives, an AI receptionist usually costs less than a part-time receptionist and often less than a human answering service at the same volume. A human service handles complex calls better, and a part-time hire does other work too. The right choice depends on what your calls actually are.

Is an AI receptionist worth it?

Use a simple test before you sign up:

1. Count missed calls for two weeks. Your phone system or call log shows unanswered calls. Note which hours they happen in.
2. Estimate how many were new enquiries. Check voicemails and call-backs. Even a rough share is enough.
3. Put a value on a new client. Use your average first-year fee, not your best client.
4. Compare. Monthly missed new enquiries, times the share you’d normally win, times the value of a client. If that number is several times the monthly cost, it’s worth trying.

It’s probably not worth it if:

• you rarely miss calls, or already have someone who answers reliably;
• most of your calls need expert judgment rather than information or booking;
• your callers strongly expect to reach a person, and losing that would cost you more than missed calls do.

Example: an accounting firm in tax season

From January to April, most calls to a small accounting firm fall into four groups:

• “Did you get my documents?” The assistant shouldn’t confirm this from memory. It points the caller to the client portal, where they can see what has been received, or takes a message for the team.
• “When will my return be ready?” It gives the firm’s standard timeline and takes a message if the caller needs a specific answer.
• Appointment changes. It books, moves and cancels directly in the calendar.
• New-client enquiries. It collects name, contact details and the type of return, then transfers the call during office hours or books an introduction call after hours.

A short script for the first group might read: “Thanks for calling. The quickest way to check your documents is the client portal, where you can see everything we’ve received. Would you like me to send you the link, or take a message for the team?”

The firm keeps everything involving a client’s actual return with a person. For the wider plan of what to prepare before the rush, see the tax season checklist for accounting firms.

How to set one up in an afternoon

1. Write the information sheet. Copy your opening hours, address, services, booking rules and the ten questions you’re asked most often from your website and inbox.
2. Write the call script. Greeting, how to answer the common questions, when to take a message, and the closing line. Keep each answer to one or two sentences.
3. Set business hours and after-hours rules. Decide what happens to calls outside office hours: message, booking, or an emergency transfer.
4. Connect your calendar. Set which appointment types it can book, their length, and the buffer between them.
5. Set transfer numbers and rules. Who gets which calls, and what the assistant says while it transfers.
6. Choose where summaries go. One shared inbox or channel is easier to manage than several.
7. Test ten calls yourself. Ask the common questions, try an awkward one, ask for a human, and try to book outside hours. Fix the script after each test.
8. Start with unanswered calls only. For the first week, forward only the calls you miss. Once the summaries look right, decide whether it should answer first.

AI receptionist services to compare

Checked on each vendor’s own site in October 2026. Prices change, so the table shows how each one charges rather than a figure.

Service	What it is	How it charges
Smith.ai	AI-first, hybrid or human receptionists, with US-based staff for the human side	Per call
Ruby	Live human receptionists, with AI extras included	Monthly bundles of minutes
Goodcall	AI phone agent for small businesses	Per unique caller each month
Dialpad AI Agents	AI receptionist inside the Dialpad phone system	AI credits on top of a phone plan
RingCentral AI Receptionist	AI that answers, books and routes calls	Add-on licence (standalone in the US and Canada)
Aircall AI Voice Agents	AI voice agent on the Aircall phone system	Per minute, with bundles

Per-minute and per-call pricing suits low volume; a flat or per-caller price suits a busy line. Run your own call log through each model before you choose.

Questions to ask before you sign up

Ask every provider the same questions and get the answers in writing:

1. What exactly counts as a billable minute or call? Ask whether spam, wrong numbers, hold time and transferred calls count.
2. What’s the overage rate, and does the plan warn you before you pass the cap?
3. Can I keep my own number? Forwarding should be enough. Porting your number to a provider makes it harder to leave.
4. How do transfers work? Can it transfer to different people by call type and time of day, and what happens if nobody answers?
5. What does the summary include, and can it go to a shared inbox?
6. Where are recordings and transcripts stored, who can see them, and how long are they kept? Can you switch recording off?
7. Does it use my call data to train its models? For a professional firm, the answer should be no.
8. How do I change the script? You’ll edit it often in the first month, so it should take minutes, not a support ticket.
9. What’s the notice period to cancel? Month-to-month is safest while you test.

Consent, recording and privacy rules

Check these before the assistant takes its first call. This is general information, not legal advice.

• Tell callers it’s automated. Put it in the greeting.
• US recording consent. Federal law (18 U.S.C. 2511) allows one-party consent, but some states require every party to agree. If your callers are in all-party states, say in the greeting that the call is recorded.
• US outbound calls. The FCC ruled in 2024 that AI-generated voices count as “artificial” voices under the TCPA (FCC declaratory ruling). Get the caller’s consent before the assistant calls anyone back.
• UK. Follow the ICO’s guidance on electronic communications for calls and its guide to data security for recordings and transcripts.
• Australia. The OAIC has guidance on using commercially available AI products, including what to check before personal information goes into one.
• Tax and accounting firms. IRS Publication 4557 sets out how to protect taxpayer data. Never let the assistant read out return details, balances or identity numbers.
• Where recordings live. Know who can access recordings and transcripts, and how long they’re kept.

Alternatives to an AI receptionist

Option	Best for	Cost shape	Main drawback
Voicemail with transcription	Very low call volume	Low or included with your phone line	Callers often hang up instead of leaving a message
Human answering service	Calls that need judgment or warmth	Per minute or per call, usually higher	Higher cost, and quality varies by operator
Shared line with call groups	Small teams in one office	Included with most business phone systems	Only works when someone is free to answer
Part-time or virtual human receptionist	Steady daytime volume plus admin work	Hourly or monthly	The most expensive, and no after-hours cover
AI receptionist	Routine calls, booking and after-hours cover	Per minute, call, caller or flat with a cap	Needs a good script and clear transfer rules
AI assistant for the follow-up	Turning call summaries into action	Usually a monthly subscription	Doesn’t answer the phone itself

The last row is how NeatlyReady works. Grok Bot doesn’t answer calls, but it handles everything after them: reading the summaries, drafting replies, booking meetings and adding tasks. You can set up Grok Bot for a small business alongside any of the options above.

After the call: turning summaries into follow-ups

The summary is only useful if someone acts on it. A simple routine:

1. Send every summary to one inbox. A shared address or channel that the whole team can see.
2. Sort them daily. New enquiries, appointment changes, document questions and messages for a named person. An AI assistant like Grok Bot can do this sorting and draft the reply for each one.
3. Answer new enquiries the same day. A quick reply is usually what wins the client.
4. Log new clients. Add them to your onboarding process straight away.

If your follow-up includes text messages in the US, you’ll need business texting registration first: see how to register for business texting (A2P 10DLC). For more ideas on where AI saves time in a small business, see practical AI uses for small business, and for a full day run by an assistant, how an AI assistant runs a firm’s day.

An AI receptionist is worth testing if missed calls cost you clients. Start with unanswered calls only, keep advice and account questions with a person, and judge it on the summaries it sends you after the first week.

Questions

How does an AI receptionist work?

You forward your business number to it. When a call comes in, it greets the caller in a natural-sounding voice, answers common questions from information you give it, takes a message or books an appointment into your calendar, and sends you a summary. Calls it should not handle are transferred to a person.

Is an AI receptionist worth it for a small business?

It is worth it when you miss calls that would have become paying clients. Count missed calls for two weeks, estimate how many were new enquiries and what a new client is worth, and compare that with the monthly cost. If you rarely miss calls, or most calls need expert advice, voicemail or a human answering service may be enough.

How much does an AI receptionist cost per month?

It depends on the billing model: per minute, per call, per caller or a flat monthly fee with a usage cap. Call length, overage rates, extra phone numbers and extra languages push the price up. Work out your own monthly calls and average call length, then price each option on those numbers rather than on the headline plan.

Is there a free AI receptionist?

Some services offer a free trial or a small free allowance of minutes, which is useful for testing your script. Ongoing free plans are rare and usually limit minutes, features or call transfers, so budget for a paid plan if you rely on it for real calls.

Can an AI receptionist book appointments and transfer calls?

Yes. Most can check your calendar and book, move or cancel appointments, and transfer a call to a person based on rules you set, such as during office hours, for urgent issues or when the caller asks for a human.

Do I have to tell callers they are talking to an AI?

Tell them. It is good practice everywhere and may be required where you operate, especially if calls are recorded. A short line in the greeting, such as saying the caller has reached the firm’s automated assistant, covers it.

Can an AI receptionist work for an accounting or law firm?

Yes, for the routine calls: opening hours, appointment changes, document questions and new-client enquiries. Keep it away from advice and from anything involving account details or client records, and transfer those calls to a person.