Microsoft 365 Business Premium vs Standard for a 20-Person Firm

Microsoft 365 Business Standard and Business Premium look almost identical on the marketing pages. Same apps, same email, same Teams, same SharePoint. The price gap, roughly double, suggests something more is happening. There is, and it is almost all in security and device management.

For a 20-person Australian business, the choice between Standard and Premium is one of the more consequential licensing decisions you will make in a year. This is a practical breakdown of what Premium adds, and when each plan is the right call.

The headline difference, in one line

Standard gives you the productivity apps. Premium gives you the productivity apps plus enterprise-class security and device management, normally only available in much larger Microsoft 365 plans.

The Microsoft positioning calls this "advanced security", which is accurate but unhelpfully vague. The four things Premium specifically adds are tangible and worth understanding.

What Premium adds that matters

1. Microsoft Defender for Business

Endpoint protection across every managed device, with anti-malware, anti-ransomware, attack-surface reduction, and a security operations dashboard. In Standard, you rely on Defender Antivirus alone, the basic protection that ships with Windows. Premium upgrades this to full endpoint detection and response.

If you have ever had to deal with a ransomware incident, you know why this is the line in the sand.

2. Microsoft Intune device management

Intune lets you manage every business device (Windows, macOS, iOS, Android) from a central console. You can enforce policies (password length, screen lock, encryption), remotely wipe a lost or stolen device, separate personal and business data on a phone, and stop a leaver from walking off with data on a device that is no longer monitored.

Without Intune, leaver offboarding is largely manual. With Intune, it is a few clicks and the device is no longer a risk.

3. Conditional Access and identity protection

Premium includes Azure Active Directory Premium P1 (now Microsoft Entra ID P1), which is where Conditional Access lives. This is the policy engine that lets you require multi-factor authentication only from unfamiliar locations, block sign-ins from high-risk countries, or require a managed device for access to specific systems.

It is the difference between MFA on or MFA off, and MFA configured to the actual risk profile of the business.

4. Information protection (sensitivity labels and DLP)

Sensitivity labels let you mark documents and emails as "Internal" or "Confidential", and Microsoft enforces the rules. Data Loss Prevention policies prevent credit card numbers, tax file numbers, and similar from being emailed externally by mistake. Useful for finance, legal, healthcare, and anyone with regulator interest.

When Standard is enough

Business Standard is the right plan if all of the following are true:

• You have a separate, capable endpoint security product already, and pay for it separately
• You have a separate Mobile Device Management or Endpoint Management product, or you have no mobile devices to manage
• Your team works only from devices you control, and your data is not particularly sensitive
• You are happy with MFA either on or off, with no Conditional Access nuance
• You are not in an industry with regulator interest in data handling

That profile exists, but it is increasingly rare for an Australian SMB in 2026.

When Premium pays itself back

For most professional services, finance, and managed services firms, the maths is short:

• Stripped out costs. If you currently pay for a separate endpoint security product ($8 to $15 per user per month is typical), an MDM platform ($5 to $10 per user), or a separate DLP tool, Premium often replaces two or three line items
• Reduced incident risk. One ransomware incident, even a small one, easily exceeds a year of the Premium price difference. The endpoint protection in Premium meaningfully reduces that exposure
• Faster offboarding. Intune-managed devices can be wiped remotely. Without it, you are coordinating physical device collection or relying on the user's goodwill
• Compliance posture. If you are working toward SMB1001, ASD Essential Eight, or any client-driven security audit, Premium is doing most of the heavy lifting for you

The Australian pricing reality, mid-2026

List prices per user per month, ex GST, billed annually:

• Microsoft 365 Business Basic: roughly $11. Web and mobile apps only
• Microsoft 365 Business Standard: roughly $24. Adds the desktop apps
• Microsoft 365 Business Premium: roughly $43. Adds the security and management features above

The $19 per-user gap between Standard and Premium is the question on the table. For a 20-person business that is about $380 per month or $4,560 per year, ex GST.

If Premium replaces two existing third-party tools, or covers off one client security audit, or prevents one ransomware incident, it has paid itself back several times over. For most businesses we work with, it does at least one of those.

What we usually recommend

Defaults, not rules:

• Premium for any business handling client data, financial records, or regulated information. Anyone over 15 staff. Anyone working with mobile devices in any capacity
• Standard for small operations where the security tooling is already mature and separately licensed, where there is no plan to add device management, and where the team works only from desk-bound devices in a controlled environment
• Basic for casuals, contractors, or roles that only need email and web access

For mixed teams, you can mix and match. A 20-person business might use Premium for everyone in client-facing roles, Standard for two roles that never touch sensitive data, and Basic for two casuals. The licensing is per-user.

The hidden conversation: managing what Premium enables

Buying Premium is the easy part. Configuring Defender, Intune, Conditional Access, and DLP properly is the harder part, and the part where a managed IT partner earns its fee. Premium without configuration is just an expensive Standard. Premium configured well is a meaningful uplift in your security posture, your compliance position, and your day-to-day operational risk.