Most people think Copilot is one thing you either have or don't. It isn't. There are three tiers, and the confusion between them is costing businesses money in both directions, some are paying for a licence they're using like the free version, others think they need to pay when they already have more than they realise.
In short
- Free Copilot is grounded in the public web and knows nothing about your business.
- Copilot Chat is included at no extra cost with most eligible Microsoft 365 business plans, with enterprise data protection, and most teams do not know they have it.
- The paid licence buys automatic grounding in your organisation’s own data, in-document editing, and access to agents and Copilot Studio.
- Check what you already have before you buy. A licence bought too early is the most common way these sit idle.
The free version
Free Copilot, the one anyone can open in a browser or on Windows, is grounded in the public web. It doesn't see your files, your emails, or anything inside your business. It's a capable general assistant. It is not a work tool in any meaningful sense, because it knows nothing about your work.
What you probably already have and don't know about
Here's the one that surprises most leadership teams. If your business already runs Microsoft 365, you very likely have Copilot Chat included at no extra cost. Microsoft lists the qualifying plans as Business Basic, Business Standard, Business Premium, Apps for Business and Enterprise, E3, E5, F1, F3, and Office 365 E3 and E5 (Microsoft 365 Copilot pricing).
This is not the fully public free version. It shows up inside Outlook and the Microsoft 365 Copilot app, you can feed it documents manually and it'll work with them, and it comes with enterprise data protection for anyone signed in with a Microsoft Entra account, with no admin action required. That protection puts your prompts and responses under the same contractual commitments Microsoft applies to your email and your SharePoint files (Microsoft Learn).
Most teams don't know this exists. They assume Copilot means an extra line item, and either skip it entirely or buy the full paid licence without knowing they already had a usable starting point.
What the paid licence actually adds
The paid Microsoft 365 Copilot add-on, sitting on top of an eligible base licence, does three things Copilot Chat doesn't. It reads your organisation's data automatically, emails, meetings, chats, documents, without you manually feeding it anything. It edits live inside your documents rather than just chatting alongside them. And it gives you access to the premium prebuilt agents and Copilot Studio, so you can build agents suited to how your team actually works, rather than starting from scratch.
That's the real gap. Not "AI or no AI". Automatic access to your business's own information, versus doing the legwork yourself every time.
What it costs
Microsoft's own Australian pricing, as listed on 11 September 2026 and excluding GST:
| Option | AUD per user per month | Notes |
|---|---|---|
| Copilot Chat | Included | With an eligible Microsoft 365 plan, no extra cost |
| Microsoft 365 Copilot Business (add-on) | $26.91 paid yearly, $37.68 paid monthly | Promotional pricing on the annual rate through December 2026. Requires an eligible Microsoft 365 Business plan |
| Microsoft 365 Copilot (enterprise) | $44.90 paid yearly | Requires a separate qualifying Microsoft 365 plan |
Actual pricing varies by contract type and reseller, and the Business annual rate above is promotional. Treat these as a starting point for the conversation with your Microsoft partner, not a quote.
The actual decision
Before spending anything, check what you've already got. If your team is on Business Premium or E3 and nobody's shown them Copilot Chat exists, that's a training problem, not a licensing one, and it's free to fix. If your team has hit the ceiling of what manual document uploads and public web grounding can do, and the friction is real, that's when the paid licence earns its cost.
Buying the upgrade before you've used what you already have is how licences end up sitting idle, which is exactly the pattern we see most often, and the one we wrote about in why teams stop using Copilot after the licences are bought.
Sources
- Microsoft 365 Copilot plans and pricing (Australia, business)
- Microsoft 365 Copilot plans and pricing (Australia, enterprise)
- Microsoft Learn: Enterprise data protection in Microsoft Copilot and Microsoft Copilot Chat
Product claims on this page were checked against these sources on 11 September 2026. This part of Microsoft's product moves quickly, so verify anything you are about to act on.