Microsoft 365 is a core platform for many small and medium businesses, delivering essential productivity, security and collaboration tools. However, we frequently see organisations spending far more than they need to on Microsoft 365 licences, security add-ons and Copilot upgrades, often without receiving any additional benefit.
At AST Technologies, we support businesses across the Illawarra, South Coast and Southern Highlands in reviewing their Microsoft 365 environment to ensure it is cost-effective, secure and aligned with real operational needs. This article outlines the most common areas of overspend and provides practical steps to help your organisation optimise its investment.
What Microsoft 365 Already Provides (Before You Add Premium Upgrades)
Many businesses purchase additional licences without realising how much capability is included in their existing plan. Understanding your baseline features is the first step in avoiding unnecessary spend.
Most Microsoft 365 Business plans include:
Identity & Access Protection
Multi-factor authentication (MFA)
Conditional Access
Single sign-on
Entra ID (Azure AD)
Threat Protection
Anti-malware and anti-phishing scanning
Safe Links and Safe Attachments
Microsoft Defender protection for email and collaboration tools
Data Security & Compliance Tools
Retention policies
Audit logs
Data Loss Prevention (depending on plan level)
Basic reporting for compliance and user activity
These built-in capabilities often overlap with premium add-ons or third-party tools, leading to unnecessary duplication.
For more on protecting your organisation’s data: https://astt.net.au/cyber-security/
Where Businesses Commonly Overspend on Microsoft 365
Overspending is rarely intentional — it usually occurs gradually and unnoticed. When we audit Microsoft 365 tenants for clients, we consistently identify the following issues:
1. Over-allocating Premium Licences (E3/E5)
High-tier licences are powerful, but not all staff require them. Frontline, administrative or part-time roles often only need Business Basic or Business Standard.
2. Licences Assigned to Inactive or Departed Staff
As roles change or employees leave, unused licences often remain active. Without consistent auditing or automated offboarding, these costs accumulate quickly.
3. User Accounts Deleted Without Unassigning Licences
Deleting an account does not automatically reclaim the licence. Unless licences are manually removed — or automation is in place — organisations continue paying for unused seats.
4. Duplicate or Overlapping Features
Microsoft 365 does not alert administrators when users receive duplicate security or productivity tools.
Example: assigning both an E3 licence and a standalone Defender plan, even though E3 already includes Defender.
These issues are extremely common and often represent hundreds or thousands of dollars per year in avoidable costs.
How to Reduce Waste and optimise Your Microsoft 365 Environment
With the right processes in place, Microsoft 365 can be managed efficiently and cost-effectively. The following steps can significantly reduce wasted expenditure:
1. Right-Size Licences Based on Actual Usage
Identify users who do not require advanced features and adjust their plan accordingly.
Effective licence reviews ensure each staff member has the appropriate level of access — no more, no less.
2. Automate Offboarding Processes
Using tools such as Power Automate or integrated HR workflows, you can automatically:
Remove group memberships
Revoke access
Convert mailboxes
Unassign licences
This ensures licences are reclaimed promptly and consistently.
3. Consolidate Overlapping Tools
Review your security, compliance, analytics and productivity tools to identify duplication.
If a Microsoft 365 plan already includes a capability, avoid paying for a third-party service providing similar functionality.
4. Audit Shared and Service Mailboxes
Shared mailboxes, service accounts and system mailboxes rarely require paid licences.
Auditing these accounts often reveals unnecessary premium licence assignments.
5. Implement Governance Policies and Renewal Controls
Establish policies and alerts to monitor licence usage, flag inactive accounts and manage renewal timelines.
These measures prevent accidental overspend and create long-term consistency.
Get More Value from Your Microsoft 365 Investment
Optimising Microsoft 365 is about aligning technology with your organisation’s real needs while ensuring every licence delivers value. By reviewing usage, addressing duplication and establishing governance processes, businesses can reduce spend, strengthen security and streamline operations.
AST Technologies can conduct a full Microsoft 365 optimisation review for your organisation, identifying savings opportunities and improving your security posture.
Microsoft 365 is a core platform for many small and medium businesses, delivering essential productivity, security and collaboration tools. However, we frequently see organisations spending far more than they need to on Microsoft 365 licences, security add-ons and Copilot upgrades, often without receiving any additional benefit.
At AST Technologies, we support businesses across the Illawarra, South Coast and Southern Highlands in reviewing their Microsoft 365 environment to ensure it is cost-effective, secure and aligned with real operational needs. This article outlines the most common areas of overspend and provides practical steps to help your organisation optimise its investment.
If you’d like tailored advice, our Microsoft 365 experts are ready to help.
What Microsoft 365 Already Provides (Before You Add Premium Upgrades)
Many businesses purchase additional licences without realising how much capability is included in their existing plan. Understanding your baseline features is the first step in avoiding unnecessary spend.
Most Microsoft 365 Business plans include:
Identity & Access Protection
Threat Protection
Data Security & Compliance Tools
These built-in capabilities often overlap with premium add-ons or third-party tools, leading to unnecessary duplication.
For more on protecting your organisation’s data:
https://astt.net.au/cyber-security/
Where Businesses Commonly Overspend on Microsoft 365
Overspending is rarely intentional — it usually occurs gradually and unnoticed. When we audit Microsoft 365 tenants for clients, we consistently identify the following issues:
1. Over-allocating Premium Licences (E3/E5)
High-tier licences are powerful, but not all staff require them. Frontline, administrative or part-time roles often only need Business Basic or Business Standard.
2. Licences Assigned to Inactive or Departed Staff
As roles change or employees leave, unused licences often remain active. Without consistent auditing or automated offboarding, these costs accumulate quickly.
3. User Accounts Deleted Without Unassigning Licences
Deleting an account does not automatically reclaim the licence. Unless licences are manually removed — or automation is in place — organisations continue paying for unused seats.
4. Duplicate or Overlapping Features
Microsoft 365 does not alert administrators when users receive duplicate security or productivity tools.
Example: assigning both an E3 licence and a standalone Defender plan, even though E3 already includes Defender.
These issues are extremely common and often represent hundreds or thousands of dollars per year in avoidable costs.
How to Reduce Waste and optimise Your Microsoft 365 Environment
With the right processes in place, Microsoft 365 can be managed efficiently and cost-effectively. The following steps can significantly reduce wasted expenditure:
1. Right-Size Licences Based on Actual Usage
Identify users who do not require advanced features and adjust their plan accordingly.
Effective licence reviews ensure each staff member has the appropriate level of access — no more, no less.
2. Automate Offboarding Processes
Using tools such as Power Automate or integrated HR workflows, you can automatically:
This ensures licences are reclaimed promptly and consistently.
3. Consolidate Overlapping Tools
Review your security, compliance, analytics and productivity tools to identify duplication.
If a Microsoft 365 plan already includes a capability, avoid paying for a third-party service providing similar functionality.
4. Audit Shared and Service Mailboxes
Shared mailboxes, service accounts and system mailboxes rarely require paid licences.
Auditing these accounts often reveals unnecessary premium licence assignments.
5. Implement Governance Policies and Renewal Controls
Establish policies and alerts to monitor licence usage, flag inactive accounts and manage renewal timelines.
These measures prevent accidental overspend and create long-term consistency.
Get More Value from Your Microsoft 365 Investment
Optimising Microsoft 365 is about aligning technology with your organisation’s real needs while ensuring every licence delivers value. By reviewing usage, addressing duplication and establishing governance processes, businesses can reduce spend, strengthen security and streamline operations.
AST Technologies can conduct a full Microsoft 365 optimisation review for your organisation, identifying savings opportunities and improving your security posture.
Speak with our team about Microsoft 365 optimisation
Categories
Tags
Recent Posts
Before Adding Another Phone Handset, Check Whether
August 24, 2026Microsoft 365 Renewal Is a Good Time
August 24, 2026Who’s Watching Your Security Cameras?
August 24, 2026A Good Incident Plan Gives People Confidence,
August 24, 2026Your Website Deserves the Same Care as
August 3, 2026A New Office Works Better When Technology
August 3, 2026A Smooth IT Provider Change Starts With the Handover
August 3, 2026Before Expanding AI, Make Sure You Know
August 3, 2026Keeping Your Business Connected When a Carrier
August 3, 20264 Signs Your Access Is Starting to
June 30, 2026