Microsoft 365 Plans Compared for Small Businesses

Microsoft 365 is the backbone of most small business operations - email, documents, video calls, and file storage all in one subscription. But Microsoft offers multiple plans, and choosing the wrong one means either paying for features you do not use or leaving your business exposed because you are missing protection you actually need.

This guide compares the three main Microsoft 365 Business plans so you can make an informed decision for your team.

The Microsoft 365 Business Plans

Microsoft offers four plans under the Business tier, designed for organisations with up to 300 users. The three most relevant for small businesses are:

• Microsoft 365 Business Basic - Web and mobile apps, Teams, email, SharePoint, and OneDrive
• Microsoft 365 Business Standard - Everything in Basic, plus the full desktop applications
• Microsoft 365 Business Premium - Everything in Standard, plus enterprise security and device management

There is also Microsoft 365 Apps for Business, which gives you the desktop apps and OneDrive but no Exchange email. It is a niche option - most businesses need email, so we will focus on the three main plans.

Plan Comparison at a Glance

Prices are approximate AUD and based on Microsoft's published retail rates. Microsoft adjusts pricing periodically - verify current pricing at microsoft.com/en-au or contact us for current partner pricing.

Microsoft 365 Business Basic

Basic is the entry-level plan and works well for businesses where staff primarily use browser-based tools. You get Exchange email, Teams, SharePoint, and OneDrive, plus the web and mobile versions of Word, Excel, and PowerPoint.

Basic is a reasonable choice if:

• Your team works mainly in a browser or on shared/thin-client devices
• You use industry-specific software (like a practice management system) and only need email and Teams from Microsoft
• You are a very small operation with a tight budget and straightforward needs

Basic is not the right fit if:

• Your team regularly creates or edits documents, spreadsheets, or presentations - the web apps are functional but not a full replacement for the desktop versions
• Staff work offline or in areas with unreliable internet
• You need to run macros or use advanced Excel features

Microsoft 365 Business Standard

Standard is the most popular plan for small businesses. It adds the full installed desktop applications on up to five devices per user, which means Word, Excel, PowerPoint, Outlook, OneNote, and Publisher running natively on your computers - not in a browser.

Standard also includes Teams webinar features, customer booking tools, and video editing for recordings, which Basic does not include.

Standard is the right choice if:

• Your team does regular document, spreadsheet, or presentation work
• You want staff to have a consistent, full Office experience across all devices
• You use advanced features in Excel or Word (mail merge, complex formulas, macros)
• Staff occasionally work without a reliable internet connection

For most small businesses that do not handle sensitive data and have strong existing security controls, Standard covers the day-to-day productivity needs without the higher cost of Premium.

Microsoft 365 Business Premium

Premium is the plan we most commonly recommend to small businesses that handle sensitive client data, operate under compliance requirements, or have remote workers. On top of everything in Standard, it adds a suite of security and device management tools that would otherwise require separate subscriptions.

What Premium adds that matters most

Microsoft Defender for Business is enterprise-grade endpoint protection. It goes far beyond basic antivirus - it includes behavioural monitoring, automated threat response, attack surface reduction rules, and a centralised security dashboard. This is the same technology large organisations pay significant licensing fees to access separately.

Microsoft Intune lets you manage and secure all company devices from a central portal. You can enforce encryption, require PINs, push security policies, and remotely wipe a device if it is lost or stolen. For businesses with remote workers or staff using personal devices for work, this is genuinely important.

Conditional Access (via Azure AD Premium P1) lets you set rules like: only allow access to company email from compliant, managed devices, or block logins from outside Australia. This is one of the most effective controls against account takeover attacks.

Premium is worth it if:

• You handle client financial, health, or legal data (medical practices, law firms, accountants)
• You have remote workers or staff on personal devices
• You are working toward Essential Eight compliance
• Your cyber insurer requires endpoint protection and device management
• You want a single subscription that covers productivity and security

The Security Gap in Basic and Standard

One thing many small business owners do not realise is that Microsoft 365 Basic and Standard do not include meaningful endpoint security. Microsoft provides Defender Antivirus (built into Windows) for free on all Windows devices, but this is basic protection - it does not include the advanced threat detection, automated response, and centralised management that Defender for Business in Premium provides.

If you are on Basic or Standard, you need a separate endpoint security solution. The alternatives are a third-party antivirus/EDR product, or upgrading to Premium. In most cases, upgrading to Premium is simpler and more cost-effective than buying and managing a separate security tool.

The other security gap worth knowing about: none of the Microsoft 365 plans include proper backups. If ransomware encrypts your OneDrive or SharePoint files, Microsoft will not restore them beyond a short recovery window. You need a separate Microsoft 365 backup solution regardless of which plan you are on.

Getting the Most Out of Your Microsoft 365 Plan

Many businesses pay for Microsoft 365 but only use a fraction of what is included. A proper setup makes a significant difference to both security and productivity. Whether you are on Basic, Standard, or Premium, there are configuration steps that should be done at the start:

• Multi-factor authentication (MFA) - Enabled for all users. This alone blocks more than 99% of account takeover attacks.
• Admin account separation - Your global admin account should not be used for day-to-day work. A separate account with limited permissions is best practice.
• Conditional Access policies - Available in Premium. Set rules about where and how your data can be accessed.
• Email security - Anti-phishing, anti-spoofing, and safe links policies should be configured. The defaults are not adequate.
• SharePoint permissions - Audit what is shared externally and with whom. Overshared SharePoint sites are a common data leak source.

Our Microsoft 365 management service covers all of this - setup, security hardening, ongoing monitoring, and licensing optimisation so you are not paying for seats you do not need.

Which Plan Should You Choose?

As a general guide:

• Basic - Small teams (1-4 people) with simple email and collaboration needs, primarily browser-based work, tight budget
• Standard - Most small businesses that need the full Office desktop apps and do not handle highly sensitive data
• Premium - Any business handling client financial, health, or legal data; businesses with remote workers; anyone working toward cyber security compliance or with a cyber insurance requirement

If you are unsure, Premium is generally the safer default for small businesses in regulated industries or with sensitive data. The extra cost per user is modest compared to the cost of a security incident, and it consolidates your security tooling into a single subscription you are already managing.

We are happy to review your current Microsoft 365 setup and licensing - whether you want to make sure you are on the right plan or get more value from what you already have. We are based in Ocean Grove and work with businesses across Geelong, the Bellarine Peninsula, and the Surf Coast.