Microsoft 365 Cost Optimisation: Stop the Waste

Microsoft 365 is the backbone of most modern businesses. Email, Teams, SharePoint, OneDrive, Word, Excel — if your team relies on any of these, you’re paying for a subscription. The question is: are you paying for the right subscription? And more to the point, are you paying for people who’ve left, features nobody uses, and licence tiers nobody actually needs?

Microsoft 365 cost optimisation isn’t about cutting corners. It’s about making sure every pound you spend is doing something useful. For businesses across Manchester and Sale, this is often the fastest way to reduce IT spend without touching a single service people actually rely on.

Why Microsoft 365 Costs Keep Creeping Up

Microsoft 365 billing scales automatically with the number of licences assigned. That sounds straightforward — until you account for the fact that most businesses never actively manage it. Licences get added when new staff join. They rarely get removed when staff leave. Roles change, but licence tiers don’t. New Microsoft products get bundled in, and nobody notices they’re now paying for something already available elsewhere in the stack.

Add in annual price increases — Microsoft raised UK Microsoft 365 prices multiple times in recent years — and a cost that looked reasonable two years ago can be quietly draining a significant chunk of your IT budget today. A business paying for 30 licences when only 22 people are actively using the system is wasting the equivalent of eight monthly subscriptions, every single month, without realising it.

The Most Common Microsoft 365 Waste Points

Before jumping into fixes, it helps to know where the money typically disappears. These are the patterns we see most often when reviewing Microsoft 365 environments for businesses across Greater Manchester:

Ghost Licences

Staff who left six months ago but whose accounts were never properly offboarded. Their mailboxes still exist, their licences are still active, and the bills keep coming. This is more common than it sounds — particularly in businesses without a formal IT offboarding process. A 20-person company with three ex-staff accounts still active is paying 15% more than it needs to be.

Wrong Licence Tier

Microsoft 365 Business has three main tiers: Basic (around £5/user/month), Standard (around £10/user/month), and Premium (around £18/user/month). The Premium tier includes Microsoft Defender for Business and advanced security features. If everyone in your business is on Premium but only a handful of people actually need the advanced security controls, you’re significantly overpaying for the rest of the team.

Equally, some businesses have people on Basic who would genuinely benefit from Standard — they’re constantly frustrated trying to access full desktop apps they don’t have, creating workarounds and inefficiency. Getting the tier right per user type matters in both directions.

Duplicate Tool Spend

Microsoft 365 already includes video calling via Teams, file storage via OneDrive and SharePoint, task management via Planner, and forms via Microsoft Forms. If your business is also paying separately for Zoom, Dropbox, Slack, and SurveyMonkey — and actually using those instead of the Microsoft equivalents — you’re paying for two sets of tools and getting the benefit of one. Sometimes consolidation makes sense, sometimes it doesn’t, but the cost should be a conscious decision rather than an oversight.

Storage Sprawl

SharePoint and OneDrive storage accumulates quickly. Old project files, archived data nobody has touched in three years, duplicate copies of the same documents across multiple sites. Some businesses end up purchasing additional storage add-ons when a cleanup would have solved the problem for free. It’s worth reviewing whether your storage approach actually reflects how people work, or whether important files are ending up all over the place by accident.

How to Audit Your Microsoft 365 Spend

A proper Microsoft 365 audit takes a couple of hours for an IT professional with admin access, but it can save thousands annually. Here’s what a structured review covers:

• Active vs assigned licences — How many licences are paid for versus how many are actually in use (last sign-in within 30 days)
• Licence type breakdown by user role — Are senior staff on appropriate tiers? Are part-time or limited-access users on the cheapest plan that fits their needs?
• Inactive accounts — Any accounts where the last login was over 90 days ago, particularly those belonging to former staff
• Third-party tool overlap — A full list of SaaS tools currently being paid for, cross-referenced against Microsoft 365 equivalents
• Storage utilisation — Current usage across SharePoint, OneDrive, and Exchange mailboxes versus what’s included in the plan
• Add-on subscriptions — Any additional Microsoft services (Visio, Project, Power BI Pro, extra storage) and whether they’re actively used

The Microsoft 365 Admin Centre gives you most of this data, but it takes someone who knows where to look — and who knows what action to take with what they find. If your managed IT support partner isn’t reviewing this periodically, it’s worth raising with them directly.

Right-Sizing Your Microsoft 365 Licences

Once you have a clear picture of who needs what, right-sizing means assigning the correct licence tier to each user type rather than applying a blanket tier across the entire team. A practical framework for most businesses:

• Microsoft 365 Business Basic — Suitable for staff who only need email, Teams, and web-based Office apps. Ideal for part-time roles, warehouse or retail staff, or external contractors with limited access needs
• Microsoft 365 Business Standard — The right choice for most office workers who need the full desktop Office suite, Teams meetings hosting, and standard collaboration tools
• Microsoft 365 Business Premium — Best reserved for IT administrators, senior management, finance, and anyone handling sensitive data who genuinely benefits from Defender for Business, Intune device management, and Azure AD Premium features

For most businesses in the 10–50 employee range, a mixed licence approach — with around 20–30% on Premium and the remainder on Standard or Basic — typically represents significant savings over everyone being on the same top-tier plan. The exact split depends on your roles and security requirements, and should be reviewed at least annually as the team changes.

Beyond Licences: Other Cloud Cost Optimisation Opportunities

Microsoft 365 licence optimisation is the biggest single lever, but it’s not the only one. A full cloud cost review should also look at:

• Azure resource usage — If your business runs anything on Azure, there are almost always underutilised resources that can be rightsized or shut down during off-hours
• SaaS sprawl — The average business pays for over 100 SaaS applications. Most are used by fewer than five people. A full SaaS audit often surfaces thousands in annual spend that can be eliminated or consolidated
• Annual vs monthly billing — Microsoft 365 annual commitment pricing is typically 15–20% cheaper than monthly billing. If your team size is stable, committing to annual saves money with minimal risk
• Microsoft NCE considerations — The New Commerce Experience changed how Microsoft 365 is licensed. Understanding the flexibility around mid-term changes matters, particularly for businesses with variable headcount

Building a Repeatable Optimisation Process

One-off audits are useful, but the best approach is a repeatable process that keeps costs under control on an ongoing basis. For Manchester businesses managing their own Microsoft 365 environment, that typically means:

• A monthly licence review as part of your standard IT admin routine
• A formal offboarding checklist that includes Microsoft 365 account suspension and licence reassignment
• Quarterly review of third-party SaaS spend against what’s already available in your Microsoft 365 subscription
• An annual licence renewal review to assess whether the current tier mix still reflects your team structure and security requirements

If this is being handled by a managed IT provider, it should be part of what they do proactively — not something you need to ask for. If it isn’t happening, it’s worth raising it. Ongoing Microsoft 365 cost optimisation is exactly the kind of value that makes managed IT support worth the investment.

What Typical Savings Look Like

The numbers vary by business, but as a rough guide: businesses that haven’t actively managed their Microsoft 365 environment for 12 months or more typically find 10–25% savings once a full audit and right-sizing exercise is completed. For a 30-person business paying an average of £12/user/month, that’s potentially £432–£1,080 recovered annually — from a process that takes a few hours to implement properly.

For businesses across Greater Manchester, Sale, Altrincham, and Trafford that we work with, these conversations often translate into tangible budget recovery within the same billing cycle. It’s not dramatic, but it’s consistent — and it compounds year on year when cost optimisation becomes part of regular IT management rather than a one-off exercise. If you’d like a review of your current Microsoft 365 spend, get in touch with our team in Sale. We’ll tell you honestly whether there’s meaningful saving to be had for your specific situation, and we can also look at your wider cyber security posture and IT helpdesk support at the same time.