Which AI tools does a small UK business actually need, and which are free?

A small UK business usually needs far fewer AI tools than the lists suggest: the AI already inside the software it pays for, one general assistant on a business account, and a specialist tool only where a weekly job earns it. Some of that costs nothing extra, because Microsoft 365 and Google Workspace business plans now include AI.

Several of the lists that rank for this question are written by companies selling tools. This is not a best of list: it is the order I would buy in, for a UK owner led business of three to twelve people.

What AI tools does a small business actually need?

A small business needs three layers at most, bought in this order, stopping as soon as the weekly work is covered.

The test for any tool is one sentence: this does a named job, every week, for a named person. If you cannot finish that sentence, you do not need the tool yet.

Which AI tools are free?

The AI inside Microsoft 365 and Google Workspace business plans costs nothing extra, and the main assistants and automation tools have free versions with limits. The included tools sit under business terms; the free personal accounts do not.

Paying for a personal plan does not change the terms. ChatGPT Plus at £20 a month and Claude Pro at £18 a month, or £15 a month paid yearly, are still personal accounts, with the same training setting for you to manage.

Are free AI tools safe for client data?

Free personal accounts are fine for work with no personal data in it, but not for client details. You have no data processing agreement, and you cannot see or close a login that belongs to a member of staff. Google also says a subset of chats on personal Gemini accounts is read by human reviewers.

The included tools sit under your business agreement once staff sign in with work accounts, so check the terms, then use them. My guide on whether it is safe to put client data into ChatGPT covers what UK GDPR asks of you. Neither guide is legal advice.

Which tool does each everyday job need?

Each of the six everyday admin drains can usually start with software you already have. My guide to which jobs to hand to AI first explains how to pick the job.

Read down the middle column before you spend anything. And simplify before you automate: a muddled process done faster by software is still muddled.

When is a paid AI plan worth it?

A paid plan is worth it when client details are involved, or when free limits stop someone doing a weekly job. A seat at about £18 a month costs £216 a year, which at £15 an hour, the honest cost of delegating admin, is 14.4 hours. Across 48 working weeks, that is about 18 minutes a week.

So the question is rarely the price; it is whether anyone uses the seat. Buy for the people with a weekly job for it. My guides on choosing between Microsoft Copilot, ChatGPT and Claude and which ChatGPT plan a small UK team should use compare the options in pounds.

The seat prices in the first table run from ChatGPT Business at £15 a month paid yearly to Claude Team at £22.50 paid monthly, which includes VAT. Microsoft 365 Copilot Business is £16.10 a month paid yearly before VAT, and was on offer at £13.80 when I checked.

A note on dates: AI plans, plan names, prices and data terms change often. The details in this guide were correct when I checked them on 5th November 2026. If you are reading this after that date, check the vendors' own pages before you decide.

Which AI tools can a small business skip?

A small business can skip anything that repeats a job another tool already does, or that nobody can name a weekly job for.

• A second general assistant. Two subscriptions mean two logins, two bills and two homes for your templates.
• A separate tool for each kind of writing. One assistant with a good brief and an example covers quotes, emails and summaries.
• A custom build. Rarely worth it for a single workflow while a ready made tool can do the job.

How do you find out what you already have?

Go through a month's business bank statement, list every software subscription, and check each vendor's pages for AI features your plan includes. It may save you a purchase.

1. List what you pay for. Include accounting, email, CRM and booking software.
2. Test one feature on a real job. Run it for a week, timed against the usual way, with client details kept out until you have checked the terms.
3. Cancel what nobody uses. Check every subscription again each month.

Who is this for, and who is it not for?

This guide is for owners of businesses with three to twelve people who want to know what to buy, or suspect they are paying for too much.

It is not for larger firms choosing enterprise systems, or for regulated firms such as solicitors or financial advisers, who should check their regulator's guidance first.

What should you do next?

List what you already pay for, then try the included AI on one repetitive job this week. If you would rather talk it through, the free Mini Assessment is a ten minute call with Danni, our AI business analyst, then a fifteen minute call where I hand you one fix.