What AI really costs a small business (including the bit nobody quotes)

"How much does AI cost?" is a bit like asking how much a vehicle costs. A bike and a lorry are both vehicles, and they solve different problems.

UK small firms are understandably careful here. In IONOS and YouGov's 2026 survey of 1,001 UK decision-makers, 29% said they would allocate no budget to AI projects this year and 25% would only use free tools.

Here's what you're actually choosing between, followed by the costs that rarely make it onto the price list.

The three levels of spending

The figures below are ExpertSure's estimates for UK small businesses, verified in October 2026. They're rough guides rather than quotes, and prices move quickly, so check with each supplier before you budget.

Level one: off-the-shelf tools

This is a subscription you log into, usually for writing, summarising and research. ExpertSure puts AI writing tools at £15 to £100 a month, and a basic toolkit covering writing, email, bookkeeping and social at £80 to £400 a month.

It's a good place to learn. The catch is that the tool doesn't know your business and doesn't connect to anything, so someone still copies and pastes between systems.

Level two: connected tools and automation

This is where software starts passing work along without being asked. An enquiry arrives, gets logged in the CRM and a reply is drafted. ExpertSure estimates workflow automation tools at £15 to £150 a month and customer service chatbot platforms at £50 to £500 a month.

The software is often cheap. The setup is where the work goes, because someone has to map the process, connect the systems and test it on real examples.

Level three: custom builds

This means an agent, app or assistant made around how your business works. ExpertSure puts custom chatbot builds at £3,000 to £12,000 and custom AI projects at £5,000 and up.

That's a real investment, so it should be aimed at a job with a real cost attached. If the sum doesn't work, stay at level one or two.

The bit nobody quotes

Whichever level you choose, these are the costs that tend to turn up later.

Usage charges. Plenty of AI services charge partly by how much you use them, so a busy month costs more. Pax8's research found 39% of UK firms paying for AI in the past year had received at least one unexpectedly high bill. Ask how pricing scales and whether you can set a cap.

Your team's time. Someone has to explain the process, supply examples, test the first versions and check the output. This is usually the biggest cost, and it never appears on an invoice.

Checking the work. If a person needs to review every result, that time comes off your saving. It's still worth doing for anything important, but it has to be in the sum.

Upkeep. Prices change, the tools you connect to get updated and your own services change too. An assistant quoting last year's prices is worse than no assistant at all.

Sorting out your data. AI built on a messy, out-of-date price list gives messy, out-of-date answers. Tidying up first can take longer than people expect.

Getting data protection right. Fear of data theft or third-party access was named by 51% in the IONOS survey. You'll want to know what each tool does with your information before anything is switched on, and that takes time too.

The payback sum

Put the numbers side by side. Here's an example with made-up figures, so swap in your own.

Maybe that's a yes. Maybe the same job at level two pays back in three months and you never need the build. Either way, you're deciding with numbers rather than headlines.

Don't only count hours, either. If an AI assistant picks up enquiries you'd otherwise have missed, the benefit is extra income rather than time saved, and that can be worth far more. Work it out from your own enquiry numbers and your own average job value.

Five questions to ask any AI supplier

1. What's the total cost in year one, and in year two?
2. Which charges go up with usage, and can I set a limit?
3. How much of my team's time will this need?
4. Who looks after it when something changes?
5. Where does my data go, and can I take my work with me if I leave?

If the answers come back vague, take that as your answer.

How we approach it

At Just Creative People we look for the jobs eating your time before recommending anything, and we start with one automation tested on real examples. Sometimes the honest recommendation is a modest subscription and a bit of training. That's fine with us. AI should earn its place in your business, like everything else on the payroll.