Microsoft 365 in 2026: what it actually is today

Microsoft 365 has evolved significantly over the past few years. What was once seen primarily as email and Office software is now a platform that underpins:

• Identity and access management

• Device and endpoint security

• Data protection and compliance

• Collaboration and remote working

• Embedded AI and automation

In 2026, Microsoft 365 should be viewed less as a “licence” and more as core business infrastructure.

This shift is why licence choice matters more than it used to.

The main Microsoft 365 business licences (at a glance)

Most UK businesses fall into one of four licence categories:

• Business Basic

• Business Standard

• Business Premium

• Enterprise (E3 / E5)

Each is designed for a different level of complexity, risk, and internal capability. Problems usually arise when licences are chosen based on price alone, without considering security or management requirements.

What actually matters when choosing a Microsoft 365 licence

Before looking at individual licences, it’s important to understand the factors that should drive the decision.

In our experience, the right licence depends less on company size and more on:

• How sensitive your data is

• How your users access systems (office, remote, hybrid)

• Whether devices are company-managed or personal

• Your tolerance for security risk

• Your ability to monitor and respond to incidents

Licensing decisions should follow risk and operational reality, not just user count.

Licence breakdown (with context and remediation)

Microsoft 365 Business Basic

What it’s good for

• Cloud email and collaboration

• Lightweight access for frontline or occasional users

• Organisations with very limited device requirements

Where it falls short

• No desktop Office apps

• No device management

• Limited security controls by default

How businesses typically improve it To use Business Basic safely, organisations usually need to add:

• Strong identity controls (MFA enforcement)

• Third-party endpoint security

• Additional monitoring and policy controls

When it makes sense

• Very small teams

• Users who only need web access

• Environments with low data sensitivity

For most businesses, Business Basic is best used selectively, not as a standard licence.

Microsoft 365 Business Standard

What it’s good for

• Desktop Office apps

• Email and collaboration

• Familiar experience for most users

Where it falls short Business Standard is popular — but on its own, it provides limited identity and device security.

Out of the box, it lacks:

• Advanced identity protection

• Centralised device management

• Strong enforcement of security posture

How businesses typically improve it To secure a Business Standard environment, organisations often need:

• Enhanced identity controls

• Endpoint protection and device policies

• Better visibility over sign-ins and activity

Why this matters Without these controls, businesses may struggle to:

• Prevent account compromise

• Enforce consistent security across devices

• Respond quickly to suspicious behaviour

When upgrading makes sense In many cases, businesses find that Business Premium becomes more practical and cost-effective, as these security capabilities are included natively rather than bolted on separately.

Microsoft 365 Business Premium

What it’s good for Business Premium is often where Microsoft 365 starts to make sense as a security platform, not just a productivity suite.

It includes:

• Entra ID features for stronger identity control

• Device management and policy enforcement

• Improved visibility and access control

Why it’s commonly recommended For most SMEs, Business Premium provides:

• A good balance of cost and capability

• Built-in controls for modern working

• A foundation for security and compliance

Where it may fall short

• Limited advanced threat hunting

• Less suited to highly regulated environments

• Requires correct configuration to deliver value

Our typical recommendation For many SMEs, Business Premium is the minimum baseline we recommend, provided it’s properly configured and actively managed.

Microsoft 365 Enterprise (E3 / E5)

What they’re designed for Enterprise licences are built for organisations with:

• Complex compliance requirements

• Larger user bases

• Dedicated internal IT or security teams

E3 typically focuses on

• Advanced compliance and data governance

E5 adds

• Advanced security analytics

• Threat detection and investigation

• Greater visibility across the environment

Where caution is needed Enterprise licences are powerful — but expensive.

We often see organisations paying for E5 features they:

• Don’t use

• Don’t configure

• Don’t have the resources to manage

Enterprise licensing makes sense when the operational maturity is there to support it.

Recommendations by business type (general guidance)

SMEs (10–300 users)

• Business Premium as a baseline

• Selective use of Basic licences where appropriate

Growing businesses

• Business Premium with a clear security and device strategy

• Early planning for identity and access controls

Remote or hybrid teams

• Strong identity and device management is critical

• Business Premium or higher usually justified

Regulated or high-risk environments

• Enterprise licences may be appropriate

• Only when compliance and monitoring requirements demand it

These are guidelines, not rules — context always matters.

Common Microsoft 365 mistakes businesses make

• Choosing licences purely on cost

• Assuming security is “on by default”

• Mixing licences without a plan

• Ignoring device and identity management

• Treating Microsoft 365 as a set-and-forget service

Most issues arise not from Microsoft 365 itself, but from misalignment between licensing and reality.

Microsoft 365 and AI: what’s changing

AI is becoming increasingly embedded across Microsoft 365.

This includes:

• Copilot and contextual assistance

• Automation across everyday workflows

• Enhanced search and insight

These capabilities rely heavily on:

• Identity

• Permissions

• Data structure

Licensing and configuration decisions made today directly affect how safely and effectively AI can be adopted later.

How to sanity-check your current Microsoft 365 setup

A useful starting point is asking:

• Do our licences match our risk profile?

• Are identity and device controls enforced?

• Do we know who can access what?

• Are we paying for features we don’t use — or missing ones we need?

This is often where a structured Microsoft 365 Security Assessment provides clarity without committing to change.

People Also Ask

Is Business Premium worth it for small businesses?

For many SMEs, yes — because it includes identity and device security that would otherwise need to be added separately.

Is Microsoft 365 secure out of the box?

It provides strong foundations, but configuration and management are essential.

Do all users need the same licence?

No. Mixed licensing is common and often sensible when planned properly.

Is E5 necessary for most businesses?

No. E5 is powerful but only appropriate where advanced security and compliance are required.

Do licences alone provide security?

No. Licensing enables features — configuration and monitoring deliver protection.