Yes, for some of your people, and no as a blanket purchase. Microsoft 365 Copilot earns its licence for the people who spend the working day in Outlook, Teams, Word and Excel: directors, finance, sales and anyone whose job is meetings, email and documents. It pays off fastest when your SharePoint and Teams permissions are tidy, because Copilot can see everything the user can see. It isn't worth buying for all your staff on day one. Start everyone on the free Copilot Chat that comes with your Microsoft 365 business plan, buy paid seats for the heavy users, measure what they actually use, then decide on the rest.
What does Microsoft 365 Copilot cost in the UK?
Three options sit inside Microsoft 365, and one sits outside it. Prices are from Microsoft's own UK pages and Microsoft Learn as of September 2026, per user per month, excluding VAT.
| Option | UK price (ex VAT) | Billing terms | Who can buy it | What you get |
|---|---|---|---|---|
| Microsoft 365 Copilot Chat | £0, included | Comes with your plan | Eligible Microsoft 365 plans, including Business Basic, Standard and Premium | Work-safe AI chat grounded in the web and in files people upload or reference; Copilot in Outlook. Custom agents are metered |
| Microsoft 365 Copilot Business | £16.10, or £13.80 offer price for the first year | Annual subscription, auto-renews; £19.32 on a monthly subscription. Offer: 1 July to 31 December 2026, annual commitment, first year only, existing Microsoft 365 customers | Business Basic, Standard or Premium customers, up to 300 seats per tenant | Copilot in Word, Excel, PowerPoint, Outlook and Teams, grounded in each person's email, meetings, chats and files; Researcher and Analyst agents; usage analytics |
| Microsoft 365 Copilot | £23.10 | Paid yearly, annual subscription, auto-renews | Over 300 users, or enterprise plans such as E3 and E5 | The same capabilities, for larger organisations |
| Copilot in Power BI and Fabric | Not included in any of the above | Azure, by the hour. Smallest capacity (F2) is 2 units at £0.1546 per unit hour pay-as-you-go in UK South: about £0.31 an hour, about £226 a month if left running | A paid Fabric capacity (F2 or larger) or Power BI Premium (P1 or larger). Trial capacities aren't supported | Copilot inside Power BI reports and Fabric; its usage draws on the capacity |
Sources, all as of September 2026: Microsoft 365 Copilot business pricing (UK), enterprise pricing (UK), Copilot Business FAQ, Copilot Chat requirements, Copilot for Power BI requirements, and Microsoft's Azure retail price list for Fabric in UK South (Fabric pricing). The F2 monthly figure is my arithmetic: £0.1546 × 2 × 730 hours.
Two notes. Microsoft's UK page says its prices are for marketing purposes and the real price shows at checkout, so your IT provider's quote may differ slightly. And Microsoft's own FAQ says Copilot Business "delivers the same capabilities" as the enterprise product; it's simply the lower price for businesses of 300 users or fewer. Some pages now call them "Microsoft Copilot" and "Microsoft Copilot Business"; same products.
What's the difference between the free Copilot Chat and a paid licence?
Copilot Chat answers from the web and from whatever a person pastes, uploads or points it at, under your organisation's sign-in and Microsoft's enterprise data protection. For drafting, rewording and summarising a document someone has open, it's good, and it costs nothing extra.
The paid licence changes what Copilot can reach: the person's mailbox, calendar, Teams meetings and chats, and the SharePoint and OneDrive files they can open. That's the difference between "summarise this document I've pasted in" and "what did we agree with this customer across the last three meetings, and where's the latest proposal?"
Switch Chat on first. Microsoft UK's research (13 October 2025, 2,003 UK employees) found 71% had used unapproved consumer AI tools at work, and 28% said their company didn't provide a work-approved option (Microsoft UK Stories, as of September 2026). A free, approved option is the quickest fix.
What is Copilot actually good at?
To be fair to Microsoft, the paid version is at its best on the jobs that already eat a senior person's week:
- Meetings: recaps, actions and "what did I miss" from Teams transcripts.
- Email: summarising long threads and drafting replies in context.
- Finding things: the latest version of a document, wherever it was saved in SharePoint or Teams.
- First drafts: proposals, policies and board paper outlines in Word, built from files you already hold.
- Excel: writing and explaining formulas, and a first look at a table of data.
It works where your people already work, under the permissions and compliance settings you already have. For a Microsoft 365 business, that's a real advantage over standalone AI tools.
How many hours does a Copilot licence need to save to pay for itself?
This is arithmetic, not a statistic. I'm not quoting a productivity figure, because I don't know one I'd trust for your business. Swap in your own numbers.
Example assumptions: £40,000 salary, 37.5-hour week, 28 days' holiday including bank holidays (5.6 weeks), so 46.4 working weeks.
- Working hours a year: 37.5 × 46.4 = 1,740
- Salary cost per hour: £40,000 ÷ 1,740 = £22.99
- Copilot Business: £16.10 × 12 = £193.20 a year
- Hours it needs to save: £193.20 ÷ £22.99 = 8.4 hours a year, about 11 minutes a working week
At the £13.80 offer price that's £165.60 a year and 7.2 hours. On the £19.32 monthly subscription, £231.84 and 10.1 hours. For the enterprise product at £23.10, £277.20 and 12.1 hours, about 16 minutes a week. That's salary only; add employer's National Insurance and pension and the break-even gets lower still.
The bar is low, so the price is rarely the real question. What decides it:
- Whether saved minutes turn into anything. Thirty-second savings scattered across the week change nothing. An hour of meeting write-ups that no longer need doing does.
- Whether the person uses it. An unused seat costs the full £193.20 and saves nothing. It's an annual subscription (Microsoft's page gives a seven-day window for a prorated refund on the offer), so a seat abandoned in March is still on the bill in December.
- What the rollout costs. Tidying permissions, a short session on asking good questions, and time checking its work in the first weeks. None of that is on the price list.
Should we buy Copilot for everyone?
Usually not at the start. The same arithmetic for a 60-person business on Copilot Business:
- All 60 staff: 60 × £193.20 = £11,592 a year
- The 12 heaviest users: 12 × £193.20 = £2,318.40 a year
The people who gain most have full calendars and inboxes; staff who open Outlook twice a day will do fine on Copilot Chat. Buying for everyone also means everyone's permissions must be right on day one, which is the harder job.
Microsoft's UK page offers a one-month free trial of Copilot Business (card required, converts to paid unless cancelled), and the licence includes usage analytics. Use both: pick the pilot group, agree two or three tasks you expect it to help with, and check usage after a month. The people still using it daily are your answer.
Is Copilot safe? What can it see?
Copilot sees exactly what the user can see, and nothing more. Microsoft says Copilot "only surfaces organizational data to which individual users have at least view permissions", and that prompts, responses and your data aren't used to train the underlying models (Data, Privacy, and Security for Microsoft Copilot, as of September 2026).
That's reassuring, and it's the risk. In plenty of businesses a salary spreadsheet or board paper was shared with "everyone" years ago and nobody noticed, because nobody went looking. Copilot goes looking. If the file is open to that person, it'll find it.
So tidy permissions first: the SharePoint sites and Teams holding finance, HR and board material, sharing links set to "anyone in the organisation", and sites with no current owner. Microsoft helps here: assigning even one Copilot licence gives your SharePoint admins the SharePoint Advanced Management features built for oversharing checks (Microsoft Learn, as of September 2026). Ask your IT provider to run those reports before the pilot starts.
Will Copilot give us the right answers about our numbers?
Only as right as the data underneath, and that's what owners worry about most. In the FSB's June 2026 survey, 92% of small firms had some concern about AI risk, and the biggest single concern, at 54%, was AI producing inaccurate responses (FSB, June 2026, as of September 2026).
A bad paragraph is easy to spot; a bad number isn't. Ask for last quarter's margin and Copilot will answer confidently from whichever spreadsheet it found. If there are three versions, you have a one-in-three chance of the one finance signed off. Sage's research found 42% of UK SMEs say their financial information is too spread out to make better use of AI, and only one in ten can see their full financial picture in one place (Sage UK, 23 September 2026, as of September 2026). One version of the truth has to exist before any assistant can find it.
If your management information lives in Power BI, Copilot can answer questions there too, but that's the separate Fabric purchase in the table's last row, and it depends on how well your reports are defined. I've covered that in my post on Copilot readiness for Power BI, so I won't repeat it. In short: when two reports disagree, Copilot picks one and sounds sure.
Where do we start?
In this order:
- Switch on Copilot Chat for everyone. Included, approved, and a safe place to build the habit.
- Tidy permissions on finance, HR and board sites before anyone gets a paid seat.
- Trial Copilot Business for a month with five to fifteen heavy Outlook, Teams and Word users.
- Measure with the usage analytics and a short conversation with each person. Keep the seats used daily; drop the rest before the annual commitment starts.
- Leave the numbers questions until the numbers are agreed.
If Power BI is where your numbers live and Copilot is on the roadmap, my AI-Ready Power BI Assessment (£2,950 fixed) tests whether your reports give Copilot correct answers against thirty real business questions, models the Copilot capacity and licence cost, and recommends who should and shouldn't get access yet. To talk through which roles to license first, book a free 20-minute call.
Common questions
Is Microsoft 365 Copilot worth it for a small business?
For the people who spend most of the day in Outlook, Teams, Word and Excel, usually yes, provided your file permissions are tidy. For everyone at once, usually not. Start with the free Copilot Chat, license the heavy users, and measure before buying more.
How much is Microsoft 365 Copilot in the UK?
As of September 2026, Microsoft's UK page lists Copilot Business at £16.10 per user per month paid yearly, ex VAT, or £19.32 on a monthly subscription, with a £13.80 first-year offer on annual commitments made between 1 July and 31 December 2026. The enterprise Microsoft 365 Copilot is £23.10 per user per month paid yearly, ex VAT.
What's the difference between Copilot Business and Copilot Enterprise?
Microsoft says Copilot Business has the same capabilities as Microsoft 365 Copilot at a lower price. It's for organisations on Business Basic, Standard or Premium, up to 300 seats per tenant. Over 300 users, or on enterprise plans such as E3 and E5, you buy Microsoft 365 Copilot.
Is Copilot Chat really free?
Yes. Copilot Chat is included at no extra cost with eligible Microsoft 365 plans, including Business Basic, Standard and Premium. It works from the web and files people upload or reference, and includes Copilot in Outlook. Custom agents are charged on a metered basis if you use them.
Can Copilot see files it shouldn't?
Copilot only shows a person data they already have permission to view. The risk is that permissions are often wider than anyone realises, so an old file shared with everyone becomes easy to find. Review sharing on finance, HR and board sites before rolling out paid licences.
How many hours does Copilot need to save to be worth it?
As arithmetic, not a statistic: at a £40,000 salary over 1,740 working hours, an hour costs £22.99. A £16.10 monthly licence is £193.20 a year, so it needs to save about 8.4 hours a year, roughly 11 minutes a working week. The harder test is whether the time saved becomes useful work.
Does Microsoft 365 Copilot include Copilot in Power BI?
No. Copilot in Power BI needs a paid Fabric capacity (F2 or larger) or Power BI Premium (P1 or larger), billed separately through Azure; trial capacities aren't supported. Its answers are only as good as the definitions in your reports.