How Much Does an AI Consultant Cost in the UK? (2026)

AI consultant cost in the UK depends on how you buy it. Contract AI consultants had a median day rate of £575 in the six months to 6 October 2026 according to ITJobsWatch, fixed-fee AI audits for small businesses are published at roughly £495 to £1,500, and monthly retainers sit around £1,500 a month. For most small firms, a fixed-fee audit followed by one small build is the lowest-risk way in.

AI consultant cost in the UK: typical pricing models

There are three common ways to pay for AI help. The table shows published figures at the time of writing, with the source for each.

Sources for the audit and retainer figures: All Sorted AI, The Automation Agency and Revio. The ITJobsWatch figures come from contract job adverts, mostly placed by larger organisations, so they describe the ai consultant day rate uk market for corporate work more than for a 10-person trade business.

What an AI audit should include

AI audit cost for a small business is only worth paying if you come away with something you can act on. A useful audit should cover:

• Where time goes. A walk-through of your week: enquiries, quoting, scheduling, invoicing, chasing, reporting.
• Your systems. Which tools you use, what they connect to and where data is typed twice.
• A ranked list of opportunities. Each with estimated hours saved, rough build cost and payback time.
• What not to do. A good audit tells you which ideas aren't worth it yet.
• Data protection. Which processes involve personal data and what checks are needed. The ICO's AI and data protection risk toolkit is a useful reference, though it is under review after the Data (Use and Access) Act.
• A fixed price for the first build. So you know exactly what step one costs.

Fixed fee vs day rate vs retainer

Fixed fee

You agree the deliverable and the price up front. The risk of overrunning sits with the consultant, which is why it suits small businesses. The downside: scope must be clear, and changes cost extra.

Day rate

You pay for time. It works when the job is exploratory or you have your own team to direct the consultant. It is hard to budget for, and a £575 day rate adds up quickly over a three-week project.

Retainer

You pay monthly for a set amount of advice, builds and support. An ai consultancy retainer makes sense once you have proved value with one build and have a pipeline of further work. It makes little sense as a first purchase, because you are paying for capacity before you know what you need. That is why ours has a 3-month minimum rather than a 12-month contract.

How to compare quotes

Turn every proposal into one number: the total cost of your first three months, including software and support. As an illustrative example, five days at the £575 median day rate comes to £2,875 before anything is built. A £495 audit plus a £1,000 build comes to £1,495, with one automation live at the end. A day-rate consultant may cover more ground in those five days, so compare what you will actually have, not just the price.

Do you need an AI consultant at all?

Often, no. At least not yet. The FSB's Confidence Code report (July 2026) found 55% of small firms now use AI, and 92% of owners have concerns about the risks. Much of the early value comes from staff using a general AI tool well, which you can learn yourself.

The FSB's own ten steps to adopting AI (August 2026) starts with putting the team on a paid plan of a general-purpose AI tool and having the owner learn it first, before buying anything specialist. We agree with that order.

You probably do benefit from outside help when:

• You want AI to act on its own, such as replying to customers or moving data between systems.
• The process involves customer or children's personal data.
• Several tools need to talk to each other: CRM, job software, accounts, email.
• You have tried to build it yourself and it keeps breaking.
• You simply don't have the hours to learn and build it, and your time is worth more on the tools or with customers.

Questions to ask before hiring

1. Can you show me something similar you have built that is live now, and how long it has been running?
2. Is the price fixed, and what exactly is included?
3. What are the monthly costs after launch, including software and usage?
4. Whose accounts will the automations run in, and can I take them with me if we part ways?
5. How do you test it before it goes live?
6. What happens when it gets something wrong, and who is alerted?
7. How do you handle personal data, and will you sign a data processing agreement?
8. Which of my ideas would you advise against?

The last question is the most revealing. A consultant who thinks everything should be automated is probably selling rather than advising.

What to expect in the first 90 days

Testing is where good and bad consultants differ most. When we built email triage for The PE Specialists, the system went live with 591 automated tests and had 0 errors on its first day live. For the ActionCOACH Essex Central studio app, which edits recordings, adds captions and drafts social posts for approval, we wrote 144 tests. You don't need to read the tests, but you should ask whether they exist.

What Apex charges

• Discovery call: free, 30 minutes. Book here.
• AI assessment: £495, credited in full against your first build.
• Custom automation: from £1,000 per standard automation, 30 days support included, then support from £97 a month depending on scope.
• AI consultant retainer: £1,500 a month for 2 calls, 2 automations and support, 3-month minimum.

More detail on how we work is on our AI consulting page, and build prices are covered in AI automation cost UK.