Your Staff Can Now Turn On Microsoft's AI Assistant Without Asking You First

A client called us last week convinced their Microsoft bill had gone up again. It had not. What had changed was that three people on their team had quietly started using Copilot inside Word and Outlook, generating drafts and summarising emails, without anyone deciding the company should have an AI assistant reading its inbox. Nobody had bought anything. Nobody had asked IT. The trial had simply been sitting there, switched on, waiting for someone to click it.

That is not a one-off. Microsoft has made this the default behaviour for small business tenants running Microsoft 365 Business plans, and most owners we talk to have no idea it happened in theirs. Here is what the trial actually does, what it can see, and the two-minute check that puts the decision back in your hands instead of your staff's.

Quick answers

Does my company already have this trial running? Possibly. Any Business Basic, Standard or Premium tenant with up to 300 users is eligible, and the option to start it is on by default unless an admin has turned it off.

Will we get billed automatically when the trial ends? No. According to Microsoft's own Tech Community post, users simply lose the premium features after 30 days unless an admin assigns a paid licence. There is no credit card on file and no automatic charge.

Can one employee start a trial for the whole company? No, each trial is per user, started from that person's own Copilot Chat. But because it needs no admin approval, several employees can each start their own trial independently, which is exactly how it can spread through a team unnoticed.

How do I turn it off if we are not ready? In the Microsoft 365 admin center, go to Settings, then Org settings, then Self-service trials and purchases, and disable self-service Copilot trials for the tenant. It takes under a minute.

What Microsoft actually switched on, and why it is opt-out

The offer is often called Copilot in 30 by partners, though Microsoft's own naming is simply the self-service Copilot trial. It gives up to 25 users per tenant full access to Microsoft 365 Copilot, including Copilot Chat grounded in your organisation's own files and mail, for 30 days at no cost. No payment method is required to start it, which is exactly what makes it frictionless enough to spread without a decision ever being made.

The eligibility is deliberately broad. Any tenant on Business Basic, Business Standard or Business Premium with up to 300 users qualifies, and Microsoft's stated aim is to get more small businesses actually trying Copilot rather than reading about it. That is a reasonable goal. The part worth pausing on is the default: Microsoft ships this switched on, and it is the business owner's job to notice and decide, not Microsoft's job to ask first.

Is this the same Copilot we already pay for?

Not quite, and the distinction matters if your company already made a purchasing decision here. We covered the Copilot bundle that Microsoft folded into Business Standard and Premium back in July, which is a paid add-on you consciously choose and pay roughly nine dollars a user more for each month. This trial is different: it is a separate, temporary, zero-cost activation of the full premium feature set, aimed at businesses that have not bought anything yet. If your company already pays for the bundled version, this trial mostly does not apply to you. If it does not, this is the version currently running, or available to run, inside your tenant right now.

What can Copilot actually see once someone starts it?

This is the part that should decide whether you let the trial run, not the price tag. Copilot Chat, once activated, is grounded in Microsoft Graph, which means it can search and summarise whatever the signed-in user already has permission to open: shared mailboxes, SharePoint sites, Teams channels, OneDrive folders. It does not gain any new access. It just makes existing access dramatically easier to use, including by someone who was never supposed to see a document in the first place because a permission was left too open years ago.

That is the actual finding from every Microsoft 365 security assessment we have run for a small business: sharing permissions accumulate silently for years, and nobody notices until a tool comes along that is very good at surfacing what is technically shared but practically forgotten. A trial that switches itself on for free, with no review step, is precisely the scenario that turns a stale permission into a real exposure.

What comes with the trial that you do not get from ChatGPT

The trial is not just a chat box bolted onto Word. It includes Researcher and Analyst, two agents built to work through your own tenant data rather than the open internet. Researcher can pull together a multi-step answer from documents, emails and meeting notes spread across a project, the kind of task that normally means someone spends an afternoon reading through a shared folder. Analyst reads data directly from an Excel file or a connected source and answers questions about it in plain language, without the user having to write a formula.

For a twenty-person company, that combination is usually where the actual time saving sits, not in drafting emails a little faster. It is also exactly why the sharing-permissions review matters more here than with a generic AI chatbot: Researcher and Analyst are useful precisely because they are grounded in your company's real files, which means a permission mistake is not theoretical.

What the decision actually costs, either way

The trial itself costs nothing, but the decision at the end of it is not free, and pretending otherwise is how a 30-day pilot turns into an unplanned recurring cost. If your team decides to keep it, Microsoft 365 Copilot as a standalone add-on runs at a price close to the twenty-three dollars fifty a user per month we documented for the bundled Business Standard version in July, which for a twelve-person team is more than a thousand dollars a year, recurring. That is a perfectly reasonable spend if three or four people genuinely use it daily. It is a wasted one if the trial quietly expired after two people opened it once out of curiosity and nobody ever checked whether it changed how the team actually worked.

Should you switch it off, or do it properly instead?

Turning it off buys you time, not a solution, because Microsoft will keep offering this trial and a curious employee will eventually find it again. The better move for most small businesses is a short, deliberate pilot: pick five to ten people who would genuinely benefit, check their sharing permissions first, and run the 30 days as an actual trial with a decision date at the end of it, rather than as background noise that either quietly expires or quietly becomes a habit nobody budgeted for.

If you decide it is worth pursuing properly, that is where our AI services come in: we scope which roles actually gain from Copilot, clean up the sharing permissions it would expose, and give you a straight answer on whether the ongoing licence cost is worth it for your team, rather than letting the decision get made by default the way the trial itself was switched on.

What happens to work created during the trial if you let it lapse?

Documents, drafts and summaries Copilot helped produce stay exactly where they were saved, in Word, Outlook or Teams, because Copilot is a feature layered on top of your existing files rather than a separate storage location. Nothing gets deleted when the trial ends. What stops is the ability to generate new drafts, summaries or chat answers, and the premium agents such as Researcher and Analyst that came with the trial. For most small teams that used the 30 days to test whether Copilot actually saved anyone real time, that is a clean stopping point: no data loss, no lock-in, just a straightforward decision on whether to buy.