Microsoft 365 Business Premium vs Business Standard: Which Should You Choose in 2026?

The short version: Business Standard gives you the Office apps. Business Premium gives you the Office apps plus the security and device management that most businesses now need. The gap is about £6.40 per user per month. If your staff handle customer data, use company laptops, or you want Cyber Essentials without a fight, Premium is the right answer for most of them. If a role is genuinely just email and documents on a personal device, Standard is fine.

This guide sets out exactly what each plan includes, what the extra money buys, where Standard is enough, and how to mix the two so you don't overpay.

Business Standard vs Business Premium at a glance

	Business Standard	Business Premium
Desktop Office apps	Yes	Yes
Email, Teams, SharePoint, 1 TB OneDrive	Yes	Yes
Endpoint protection (Defender for Business)	No	Yes
Device management (Intune)	No	Yes
Conditional Access (Entra ID P1)	No	Yes
Safe Attachments and Safe Links	Email links only	Yes
Sensitivity labels and DLP (Purview)	No	Yes
Archive mailbox	No	Yes
Price, annual commitment	£11.34	£17.75

Whether you search for Business Standard vs Business Premium or Business Premium vs Business Standard, the question is the same: is the security layer worth £6.40 a month per person? For most businesses handling other people's data, it is.

Prices in 2026

Current UK prices, per user per month, excluding VAT, as of September 2026. Microsoft's July 2026 repricing raised Standard and left Premium alone, which narrowed the gap.

Plan	Annual commitment, billed monthly	Monthly commitment, billed monthly
Business Standard	£11.34	£12.96
Business Premium	£17.75	£20.28
Business Standard with Copilot	£19.01	£21.72
Business Premium with Copilot	£25.83	£29.52

Both columns are billed monthly. The monthly-commitment price costs about 14% more for the right to drop seats at a month's notice. Annual is the right default for a stable headcount. Both plans are capped at 300 users, and the "with Copilot" bundles add the paid Microsoft 365 Copilot licence at a small discount over buying it separately. Charities pay much less on every tier: Standard is £2.84 and Premium £4.41 at nonprofit pricing. See our charity licensing guide.

What both plans include

Standard and Premium share the same productivity core:

• Desktop versions of Word, Excel, PowerPoint and Outlook on up to five PCs or Macs per user, plus tablets and phones
• Exchange email with a 100 GB mailbox (50 GB before the July 2026 changes)
• 1 TB of OneDrive storage per user
• SharePoint, Teams, Bookings, Forms, Planner and Clipchamp
• Copilot Chat, the free tier, not the paid Microsoft 365 Copilot licence
• Multi-factor authentication through Security Defaults
• URL time-of-click protection in email, added to Standard in 2026

So on a normal day, a Standard user and a Premium user open the same apps and see the same features. The difference is everything that happens around them.

What Business Premium adds

Premium bundles four security products that Microsoft sells separately, plus a handful of smaller extras.

Microsoft Defender for Business

Endpoint detection and response for Windows, macOS, iOS and Android. It watches what runs on the device, not just what arrives by email, and can isolate a machine that starts behaving badly. Standard has no endpoint protection beyond what Windows ships with.

Microsoft Intune

Device management. Enrol company laptops and phones, push settings and Wi-Fi profiles, require encryption and a PIN, block unmanaged devices from company data, and wipe a lost laptop remotely. This is the piece that turns "we think all the laptops are encrypted" into a report that says so. Our Intune and encryption guide covers the practical setup.

Microsoft Entra ID P1

Conditional Access. Rules such as "block sign-in from outside the UK", "require a compliant device for SharePoint" and "require MFA for every admin action". Standard's Security Defaults give you MFA, but no way to say who, where or on what device. Entra ID P1 also unlocks self-service password reset with on-premises writeback and group-based licensing.

Defender for Office 365 Plan 1

Safe Attachments, which detonates attachments in a sandbox before delivery, and Safe Links across email, Teams and Office documents. Standard now gets time-of-click URL protection in email only.

The smaller extras

• Purview Information Protection and Data Loss Prevention: sensitivity labels, encryption of individual documents and emails, and policies that stop, say, a spreadsheet of National Insurance numbers leaving by email.
• Exchange Online Archiving: an auto-expanding archive mailbox, useful for retention and subject access requests.
• Windows Autopilot: new laptops set themselves up from the box with no engineer visit.
• Azure Virtual Desktop rights: run Windows in the cloud without a separate Windows licence.
• Shared computer activation for hot-desking and terminal servers.

What the difference would cost separately

Buying the Premium security stack as add-ons on top of Standard, at current UK prices on annual commitment billed monthly, excluding VAT:

Nobody should buy Standard plus those add-ons. The real decision is Standard alone versus Premium.

When Business Standard is enough

Standard makes sense when all of the following are true for a user:

• They don't handle personal, financial or client data beyond ordinary email
• They work on a personal or unmanaged device, and the business is comfortable with that
• There is no compliance requirement pointing at device control, such as Cyber Essentials Plus, an insurer, or a client contract
• The business is small enough that an incident on that account wouldn't reach anything important

In practice that describes a fairly narrow group: some part-time and seasonal staff, associates who mostly use their own systems, and very small firms in the first year or two.

When Business Premium is the answer

Premium is the sensible baseline for anyone who:

• Uses a company laptop or phone
• Handles customer, employee, financial or health data
• Has admin rights to anything
• Works from home or travels, where Conditional Access does most of the work
• Is in scope for Cyber Essentials

On that last point: Cyber Essentials requires MFA on cloud services, separate admin accounts, device screen locks, encryption and prompt patching. You can pass with Standard, but you'll be proving each control by hand. With Premium, Intune enforces the device controls and reports on them, and Conditional Access covers the access rules. Our Cyber Essentials guide walks through the controls.

Mixing the two

You don't have to choose one plan for everyone. The most cost-effective layout for a typical 25-person business is usually:

• Business Premium for the directors, finance, anyone with admin rights, and everyone on a company laptop
• Business Standard for the handful who only need desktop Office and work on a personal machine
• Business Basic for volunteers, contractors and shared mailboxes that only need email and Teams in a browser

Two cautions. First, Conditional Access policies apply to the tenant, but a Standard user has no Entra ID P1 licence, so strictly they should be excluded from those policies or licensed. Second, a Standard user on an unmanaged laptop is the weak point in an otherwise well-secured tenant. Keep them away from sensitive SharePoint sites.

Moving from Standard to Premium

Upgrading is a licence change in the admin centre and takes effect within minutes. Nothing is reinstalled and nobody loses data. The work is in what you do afterwards: enrolling devices in Intune, designing Conditional Access, turning on Defender, and setting labels. Done properly that's a few days of engineering for a small business, and it's where most of the value sits. A Premium licence with none of that configured is just an expensive Standard licence.

We do this as a fixed-scope tenant hardening project, and we monitor the result afterwards through our Microsoft 365 management and monitoring service.

Our recommendation

Put anyone with a company device or access to sensitive data on Business Premium. Use Standard only where you can name the reason. Review the split at every renewal, because the July 2026 repricing made Premium relatively cheaper and the gap will probably keep narrowing.

If you'd like us to look at your current licence mix and tell you what a sensible split would cost, get in touch. It usually takes an hour and often pays for itself in the first month.