Microsoft 365 Business Standard vs Premium: which do you need?

It is the question we are asked more than any other about Microsoft licensing, usually at renewal, usually with a spreadsheet open: is Premium worth the extra? The unhelpful answer is “it depends”. The useful answer is that the two plans give you exactly the same software. The difference is entirely about who controls the devices and identities using it. Once you see the comparison that way, the decision usually makes itself.

The short version

Business Standard and Business Premium contain identical productivity software. Word, Excel, Outlook, PowerPoint, Teams, Exchange, SharePoint, OneDrive, on desktop, web and mobile, are the same on both. Nobody in your business will open an app and find a feature missing because you chose Standard.

What Premium adds is a layer underneath: identity controls, device management, and threat protection. It is not more software for your staff. It is more control for whoever is responsible for security. In a small business that is usually you, or us.

So the question is not “which plan has the better apps”. It is “do we need to control the devices and accounts that reach our data?” For a business where everyone sits in one office on company laptops, the honest answer might be no. For one where staff read email on personal phones and work from home on their own machines, it is almost certainly yes.

What Premium actually adds

Five things do nearly all the work. It is worth knowing them by name, because they are what you are paying for and what a provider should be configuring on your behalf.

Two clarifications on that last row, because both get oversold. Windows 11 Business is an upgrade right, not a Windows licence. The machine still needs an underlying Windows Pro licence, which almost every business laptop ships with. And archiving is not backup, which we come back to below.

The MFA myth, worth clearing up

You will occasionally be told that you need Business Premium to turn on multi-factor authentication. That is not true, and it is worth saying plainly because it is used to sell upgrades.

MFA is available on every Microsoft 365 plan, including Business Basic and Business Standard, through security defaults, at no additional cost. If you have Standard and MFA is not switched on, you do not have a licensing problem. You have a configuration problem, and it should be fixed this week regardless of which plan you end up on.

What Premium adds is granularity. Security defaults are all-or-nothing: MFA applies to everyone, everywhere, on the same terms. Conditional Access lets you say something more sensible. No second factor on a managed device in the office, always one from an unrecognised device, never a sign-in from a country you do not trade with, and stricter rules for the finance team and admin accounts than for everyone else. That is a real improvement, and for many businesses it is the single most valuable thing in the Premium bundle. But it is an improvement on MFA you should already have, not a replacement for MFA you have been going without.

Where Standard is genuinely enough

We would rather talk a business out of an upgrade it does not need than sell it and have the conversation later. Standard is a reasonable place to stop if most of the following is true:

• Everyone works on company-owned computers that you control and can physically get hold of.
• Staff do not read company email on personal phones, or you genuinely do not mind if they do.
• You hold no particularly sensitive data. No health records, no client financial detail, no significant volumes of personal data.
• You have no contractual or regulatory security requirements from clients, insurers or a framework you tender into.
• You already run a competent endpoint protection product and something is actively managing Windows updates.

A business like that, with security defaults switched on and a proper backup in place, is in a defensible position on Standard. Paying for Premium and then not configuring Intune or Conditional Access is worse value than staying on Standard, because you get the invoice without the protection. Unconfigured Premium is one of the most common things we find during an audit.

Where Premium earns its money

The picture changes quickly once any of these apply:

• Staff use their own phones for work. Without Intune you have no way to remove company email from a phone that is lost, sold or leaves with an employee. With it, you remove the company data and leave the personal side untouched. That is also why staff agree to enrol.
• People work remotely on machines you cannot see. Conditional Access is what lets you distinguish a managed laptop from an unknown computer in a hotel.
• You handle client data that would be damaging to lose. Data loss prevention and sensitivity labels stop the accidental send, which is a far more common cause of breaches than a dramatic attack.
• Someone has started asking security questions. Insurers, larger clients and public-sector buyers increasingly ask how devices are managed and how access is controlled. “We trust our staff” is not an answer that closes those forms.
• You are working towards a certification. More on that below.
• You are paying for a separate antivirus product. Defender for Business is included in Premium, so part of the upgrade is often replacing a cost you already carry.

On price, we will not quote Microsoft's figures here because they change and we would rather you saw the current list price than a number from an old article. The comparison worth doing is not Standard against Premium in isolation. It is Premium against Standard plus whatever you are already spending on antivirus, device management and email security bought separately. Once those are in the same column, the gap is usually much smaller than it first appears, and sometimes it closes entirely. We are happy to work that out with your actual numbers.

Premium and Cyber Essentials

This is where the question usually arrives from, so let us be precise about it: no licence gives you Cyber Essentials. It is a certification assessed against five technical controls: firewalls, secure configuration, user access control, malware protection and security update management. It is awarded on evidence of how your systems are actually set up, not on what you have bought.

What Premium changes is how hard the evidence is to produce. Intune lets you apply a configuration across every enrolled device and then show that it is applied, rather than checking fifteen laptops individually and hoping nothing has drifted since. Defender for Business covers the malware control and reports on missing updates. Entra ID P1 gives you a defensible answer on access control. None of that is required. Businesses certify on Standard every day, but it turns a manual audit into a report you can run.

If certification is the actual goal, our plain-English guide to the five controls covers what is assessed, and our Cyber Essentials page explains how we take businesses through it. If you are certifying because a contract demands it, Cyber Essentials and council contracts is the piece to read first.

The 300-user cap, and mixing plans

Two practical constraints worth knowing before you plan around either tier.

First, the Business plans stop at 300 users. That includes Premium. Beyond it you are into the Enterprise range, which is licensed on a different basis. So if you are growing towards that number, it is worth modelling the move early rather than discovering it during a hiring push.

Second, you do not have to put everyone on the same plan. Licences are assigned per user, so a common and sensible arrangement is Premium for the people who handle money, client data or administrative accounts, and Standard for the rest. If you do split, split deliberately: the accounts worth protecting most are the ones with the most access, and an unprotected admin account undoes a lot of the benefit elsewhere. Some protections also behave differently when only part of the organisation is licensed, which is a conversation worth having before the renewal rather than after.

What neither plan gives you

One thing to be clear about, because it is the most expensive assumption in this whole area: neither Standard nor Premium is a backup.

Microsoft's responsibility is keeping the service running. It is not recovering your content after somebody deletes it, a departing employee clears a mailbox, or ransomware encrypts a SharePoint library. Retention policies, recycle bins and Exchange Online Archiving are useful, and they are not the same thing as a backup you can restore from a point in time. This holds equally on Premium. The archiving it includes is about mailbox size and retention, not recovery.

A separate backup covering Exchange, SharePoint, OneDrive and Teams is its own product and its own line on the invoice. We cover why in more detail on our backup and disaster recovery page, and it is the first thing we check on any audit.

How to decide, in four questions

1. Do staff access company data on devices you do not own? If yes, Premium is doing something Standard cannot.
2. Would losing or leaking your client data be a serious problem, commercially, contractually or reputationally? If yes, the data protection controls stop being optional.
3. Is anyone, whether a client, an insurer or a framework, asking how you manage security? If yes, Premium gives you evidence rather than assurances.
4. What are you already paying for antivirus, device management and email security? Put that next to the upgrade before deciding it is expensive.

If the answers are no, no, no and nothing, Standard configured properly is a perfectly respectable position and we will say so. If any answer is yes, the upgrade is usually the cheaper end of the conversation.

Getting it configured, not just licensed

A closing point that matters more than the choice itself. Business Premium delivers almost nothing on the day you buy it. Intune has to be set up and devices enrolled; Conditional Access policies have to be written and tested; Defender policies have to be tuned so they catch threats without blocking your own staff. Bought and left alone, Premium is an expensive Standard.

That configuration work is part of what we do under a managed agreement rather than a separate project, and it is a large part of why our Microsoft 365 service exists. Licences are billed at Microsoft's list price alongside your agreement; the work of making them do something is the part we are actually for. If you would rather see the plans and what is included first, everything is published on our pricing page, and our cybersecurity services page covers what sits around the Microsoft stack.

And if you already hold Premium licences and are not certain any of it is switched on, that is worth twenty minutes of somebody's time. It is one of the most common findings in our free IT health check, and it is a problem you have already paid to fix.