How much does an AI chatbot cost for a small business?

Updated August 2026 · about a 5-minute read

Short answer: for a small business in 2026, expect to pay roughly £20 to £150 per month for a genuinely capable AI chatbot, far less than a part-time receptionist, and often recovered by a single extra booking a month.

But the monthly figure only tells half the story. Below is what actually sits behind the price, the traps to avoid, and a simple way to work out whether it's worth it for your business.

The typical price bands

Most small-business AI chatbots fall into three tiers, based on what they can do rather than just answer:

For reference, Dave on Duty sits right in these bands, £29, £59 and from £119 a month, with a 7-day free trial and no card needed to start.

Which tier is actually yours?

The fastest way to avoid overpaying is to match the tier to what you need the bot to do, not to how impressive the feature list looks:

• A café, shop or trades business that mainly needs questions answered — hours, prices, "do you do X", directions — lives happily on the bottom tier. Answers plus lead capture covers the real workload, and the £20-something price means one saved enquiry a month clears the bill.
• Anywhere that runs on appointments — dentists, salons, physios, garages, clinics — should start at the middle tier, because booking is where the money is. A bot that answers "are you free Thursday?" but can't actually book the slot leaves the job half done; the visitor still has to call, and evening visitors won't.
• A business with stock, orders and shipping — parts suppliers, retailers — is the only one that genuinely needs the top tier: live inventory search, shipping quotes, order status, returns. If you don't sell physical products, you'll likely never miss it.

Start one tier lower than you think and upgrade when the transcripts show visitors asking for things the bot can't yet do. A decent provider applies everything you've set up the moment you switch, so nothing is wasted by starting small.

What a "conversation allowance" means in practice

Flat-priced chatbots usually include a monthly allowance of AI conversations — commonly a few hundred, where one conversation means one visitor's session, not one message. Before you sign up, get answers to three questions:

• What counts? One visitor asking eight questions in a row should count once, not eight times.
• What happens at the limit? The good answer is a basic mode — the bot keeps greeting visitors and taking messages, it just stops composing AI replies until the month resets. The bad answer is a dead widget on your site, which looks broken to customers.
• Can it charge you more without asking? Top-ups should be something you approve, never an automatic overage fee that turns a busy month into a surprise invoice.

For scale: a typical small-business site sees far fewer real conversations than owners expect — most visitors read and leave. If you're regularly using hundreds of conversations a month, that's a lovely problem, and the upgrade will be paying for itself.

The cost nobody puts on the pricing page: your hours

DIY chatbot builders look cheap until you price your own evenings. Building conversation flows by hand, writing every answer, testing every path, then redoing it when your prices change — that's real cost, just paid in time instead of money. The alternative model is done-for-you: the provider scans your website, builds the bot from it, and installation is one line of code (or they do that too). When you compare prices, compare the whole cost: subscription plus the hours you'll personally spend before it's live and every month after.

What drives the cost up or down

• Capability, not conversation count. A bot that only answers is cheap. One that books appointments or checks your stock in real time does more work, so it costs more.
• Which AI model it runs on. Better models give more human, accurate replies but cost the provider more to run. Good providers absorb this into a flat fee so you're not billed per message.
• Setup and support. Some tools make you build the bot yourself; others (like Dave) scan your site and set it up for you, which saves you hours.
• Conversation volume. Very busy sites may need a higher allowance, but most small businesses stay comfortably inside a mid-tier plan.

Hidden costs to watch for

• Per-message or per-resolution fees that make a busy month unpredictable. Prefer a flat monthly price with a clear allowance.
• Setup or onboarding fees charged on top of the subscription.
• Long contracts. A month-to-month plan you can cancel any time is lower risk than an annual lock-in.
• "Unlimited" that quietly throttles. Read what happens when you hit a limit — a good bot keeps working in a basic mode rather than going dark.

Is it actually worth it?

Work out the value of one customer to you. For a dentist that might be a £90 hygiene appointment; for a garage, a £250 service; for a salon, a £120 colour. Then — rather than trusting anyone's industry statistic, including ours — count your own reality for one week: every enquiry that arrived after you'd closed, every call you missed mid-job, every question you answered for the third time. Your own tally is the only number that matters. A chatbot that captures or books even a fraction of that list pays back many times its cost, which is why the honest way to judge price isn't "how cheap is it?" but "how many customers is it saving me?"

The arithmetic is blunt. At £29 a month, one £90 hygiene appointment rescued from a 9pm enquiry covers nearly four months. At £59, a single £250 garage job covers five. You're not hoping for a transformation — you're asking whether the bot can save you one job a month, and everything above that line is margin.

The bottom line

A capable AI chatbot for a small business costs about the same as a couple of hours of staff wages a month, but it works 24/7 and never takes a break. Start on a low tier, watch what it captures during a free trial, and only move up when the bookings justify it.

Want to see it on your own site? Here's how Dave works for a small business, or start a 7-day free trial, no card needed.