For most small businesses, AI is useful in a few specific places: drafting the routine writing you already do (emails, quotes, listings, follow-ups), handling first-contact enquiries so a missed call doesn't turn into a lost job, turning rough notes into finished documents, and doing a fast first pass on research. It shouldn't make the judgement calls your customers actually pay you for. So the question worth asking is which of those jobs you'd be glad to hand to something like AI.
The problem is that almost everything written about AI for small business is written by someone with something to sell — a course, a tool subscription, a consultancy day rate. So it tends to be relentlessly positive, and it rarely tells you what to skip. I've spent about twenty years on the buying & selling side of large technology projects, across Defence, health and the Civil Service, watching organisations with far bigger budgets than yours buy things they didn't need. The same thing can happen to you, just with less room to absorb a bad call. So I've written this to help you avoid it.
The Federation of Small Businesses' late-2025 survey of 904 small business owners found that about 55% of UK small firms now use some AI, up from 20% in 2023. In the same survey, 92% of owners said they had concerns about it, up from 73% two years earlier. So most have tried something, and they're wary while they do it. Both of those are completely normal, and there's no prize for rushing.
What this actually costs
For most people the answer is close to zero when starting out. The large numbers you'll see quoted are real, but they're for a particular kind of requirement, and not where anyone should begin.
| What it is | Typical cost | Setup time |
|---|---|---|
| A general-purpose AI assistant (ChatGPT, Claude, Gemini, Copilot) | £0–£20 per person per month; the free tiers are genuinely usable | Minutes |
| AI features inside software you already pay for (accounts, booking, CRM) | Usually £0 — already in your subscription, often switched off by default | An afternoon to find them and turn them on |
| AI answering your phone and first enquiries | £150–£600 a month, plus a one-off setup fee, often £250–£3,000+ | A few days to a few weeks, usually handled by the vendor |
| A custom-built tool or automation | £4,000–£25,000 as a one-off, plus running costs | Weeks to months |
Most small businesses get real value from the first two rows and never need the last one. If someone is quoting you five figures before you've tried the £20-a-month version on the same problem, ask why.
Where AI actually helps a small business
1. The routine writing you already do. Quotes, enquiry replies, listing descriptions, chase-up emails, the same policy explained for the fortieth time. Paste your rough notes into a general AI assistant and edit the draft down. Saves an hour or two a week for most people. Cost: £0–£20 a month. Read every draft before it goes out — the tone is usually slightly off until you fix it.
2. Answering first-contact enquiries. An AI phone or web assistant can take the details of a routine call — name, job, rough timing — when you can't get to it, so the caller doesn't just ring the next firm on the list. Best fit if you miss calls regularly and lose work because of it. Cost: £150–£600 a month. Use it for triage and booking, and keep it away from advice or anything a customer would be upset to get wrong.
If you want to work out whether one of these is actually worth it for your business, the AI receptionist guide goes through the costs and the case against in full.
3. Turning notes into finished documents. Scrappy notes into a client summary, a set of minutes, a first draft of a report or a proposal. The thinking is still yours; the typing-up isn't. Saves the most time for anyone who writes up the same kind of document often. Cost: usually the same assistant as point 1.
4. A fast first pass on research. "What are the options for X", "summarise these three long documents", "what am I likely to be missing here". Treat the answer as a starting point to check, the way you'd treat a keen but junior colleague's first go. Cost: £0–£20 a month. It will state wrong things confidently. Verify anything you'd act on.
5. The questions you answer over and over. Opening hours, how a process works, what to bring, when payment's due. A simple AI answer on your website or booking page can handle the repeats and leave the ones that need you. Cost: often bundled into the tool from point 2, or built into your existing website software.
What's not worth it
This is the part the pages selling you something leave out.
- Sending anything to a customer without reading it. The draft is a starting point. A generic-sounding message to someone who was expecting a person is a quick way to lose their trust.
- Handing over the decisions that are your actual trade. Pricing, diagnosis, who to hire, whether a job is right for you, what a particular customer actually needs. That judgement is what people pay you for, and it's the last thing you should automate.
- Paying for a custom build before you've tried the cheap version. The £20-a-month assistant solves more than people expect. Find its limits before you commission something bespoke.
- An "AI strategy" for a business of five people. At that size, "AI strategy" is overkill. Find one or two annoying jobs and hand those over first.
- Automating a process that's already broken. If the underlying process is a mess, AI just makes the mess happen faster. Fix the process first, then decide whether it still needs automating.
- Doing something because a competitor mentioned it. A competitor using AI tells you nothing useful. Start from a specific job that eats your time.
Some businesses should do nothing yet, and that's a legitimate answer. If you're very small, your work is almost entirely hands-on skill or physical graft, you don't have an admin backlog, and you have a steady book of regulars — there's no bottleneck here for AI to clear. The honest advice in that case is to spend twenty minutes trying a free assistant on one irritating task, and otherwise carry on.
Where this stops being generic
So the categories are the straightforward part. AI is useful for routine writing, first-contact admin, and making sense of information. It's a poor fit for the judgement your customers pay for.
What a page like this can't tell you is which of those matters for your business, how much time it would actually save you, or which one to do first. That depends on your trade, your size, where your week actually goes, and how you feel about the technology. So the question worth sitting with is a narrower one: of everything above, what would actually make your week easier, and what would it be worth to you? That's what the free report works out for your specific business.
If you want to see this worked through for a single trade or specialism, the estate and letting agents guide and the electricians guide both go through it job by job.