If your business runs on Microsoft 365 Business Standard, your staff already have the desktop Office apps, business email, Teams and OneDrive, with multi-factor authentication switched on by default. For plenty of small offices that’s a sound setup, and nobody should push you off it just because a dearer plan exists.
Premium usually gets decided on the price per seat and not much else. Either someone recommends it for everyone without saying why, or it gets knocked back because it costs more. Neither answer tells you whether the extra protection matches how your business actually works.
What both plans already give you
Business Premium includes everything in Business Standard. Microsoft’s Business Premium FAQ says so directly, and both plans belong to Microsoft’s business family, which is capped at 300 seats across Basic, Standard and Premium combined.
On either plan, each person gets:
- The desktop versions of Word, Excel, PowerPoint and Outlook, which they can install on up to five PCs or Macs, five tablets and five phones (subscriptions and licences).
- Email filtering for spam, malware and phishing.
- Security defaults, which turn on multi-factor authentication for every account.
- Basic mobile device management.
That’s a solid base. The question is whether your business needs the layer on top.
What Premium adds
Microsoft’s security best practices for business plans lays Basic, Standard and Premium side by side. The rows that only tick for Premium fall into four groups.
Stricter sign-in rules. Security defaults give everyone multi-factor authentication. Premium adds Conditional Access, which Microsoft lists as the option for more stringent requirements. One example from Microsoft’s admin account guidance: on Premium you can require passwordless sign-in for admin accounts, rather than just allow it.
Full device management. Every plan has basic mobile device management. Premium adds full device management with app protection, so company data can be controlled on laptops and phones, including personal phones staff use for work.
Device protection. Premium includes Microsoft Defender for Business, endpoint protection built for businesses of up to 300 users. It protects Windows, Mac, iOS and Android devices against ransomware, malware and phishing, and adds endpoint detection and response with automated investigation. Businesses on Basic or Standard can buy it separately.
Email, file and data protection. Premium adds Defender for Office 365 Plan 1. That brings impersonation protection, Safe Links checking links in email, Office apps and Teams, and Safe Attachments checking attachments and files in SharePoint, OneDrive and Teams. It also adds message encryption, data loss prevention, and sensitivity labels for marking confidential email and documents.
When Standard is enough
Standard is a reasonable choice when most of these are true:
- Staff work on company computers, and those computers are already managed and protected by something you trust.
- Nobody opens company email or files on a personal phone or home computer.
- You don’t send information that needs encrypting, or need to stop certain documents leaving the business.
The more of those that aren’t true for your office, the more Premium is doing work nothing else is doing.
You also don’t have to put everyone on the same plan. Microsoft lets you combine plans within one account. The catch is in the FAQ: Premium’s security and management benefits only apply to people whose devices are managed under Premium, and Microsoft recommends it for everyone for the best protection. A mixed office has gaps wherever the Standard users work.
What our service desk sees
In the 12 months to 18 August 2026, our service desk logged 24 Microsoft licence tickets from 9 businesses. They were mostly day-to-day changes: accounts and licences for new starters, Teams licences, Power BI and Project licences added for individual people, a move from an email-only plan to Business Standard, and one business asking for a licence audit.
The plan itself tends to get chosen once, when Microsoft 365 is first set up, and then it’s left alone. It’s worth choosing again when the way you work changes: people start working from home, bring their own phones, or take on more sensitive client information.
Three questions to answer about your office
- Where do people open company email and files? If it’s only on company computers, the device management side of Premium matters less. If staff use personal phones or home computers, it matters more, because that’s company data sitting on devices you don’t control.
- What protects your computers today? If you already pay for endpoint protection and device management you’re happy with, check what Premium would duplicate before paying for it twice. If you rely on what comes built into Windows, Defender for Business adds detection, response and automated investigation on top of it.
- How much depends on an email being genuine? If your office pays suppliers, handles client money or sends invoices by email, Premium’s impersonation protection and link checking are aimed at exactly that risk.
If you answer all three and still land in the middle, that’s normal. It usually means some roles need Premium and others don’t, and the FAQ’s point about gaps is the thing to weigh.
Check this today
Open the admin centre, go to Billing, then Licenses, and note which plan each person is on (assign or unassign licences). Then answer the three questions for the people on each plan. If the answers differ from one role to the next, you’ve found the conversation to have with whoever looks after your IT.
If you’d like a second opinion on which plan fits your office, get in touch.