Microsoft 365 Licence Audit UK: Manual Review vs Instant Tooling

If you've read our guide to finding and eliminating Microsoft 365 waste, or seen what the July 2026 price changes mean for the cost of ignoring it, you've probably reached the same conclusion most UK businesses do: you likely have licence waste, and it's now more expensive to leave in place. The next question is more practical. How do you actually get it audited?

There isn't one right answer. But there is a wrong way to frame the decision, as "do it yourself" versus "get proper help". In practice, most UK businesses already have someone they'd ask: their MSP, if they have one, or an IT consultant they've used before. The real choice isn't between people and no people. It's between how the initial diagnostic gets done, and what that costs in time and money before anyone's judgement gets applied to the result.

The three ways this actually happens

What manual review actually costs

UK Microsoft 365 consultants typically charge in the region of £500 per day on a contract basis, and independent IT consultants more broadly range from roughly £35 to £180 an hour depending on experience. Separately, UK managed service providers commonly quote £1,000 to £5,000 for an initial licensing audit or onboarding review, depending on tenant size and complexity.

None of that is unreasonable for what it includes: a competent reviewer brings judgement a tool doesn't have. But it's worth being honest about what you're paying for. A meaningful share of that time isn't judgement. It's the mechanical part: pulling licence assignments, cross-referencing sign-in activity, checking for disabled accounts still holding seats, and building a spreadsheet. That's the part that takes the longest and adds the least insight per hour billed.

If you already pay a retainer to an MSP, this work might technically be "included". In practice it's frequently the first thing deprioritised behind whatever's on fire that week, not through any fault of the MSP, just a natural consequence of billable, ticketed work competing with a discretionary review nobody's chasing.

What a self-serve scan gets you instead

An automated scan covers the mechanical part well: disabled accounts still holding licences, inactive users, unassigned purchased seats, licensed shared mailboxes, and users sitting on a higher SKU than their activity justifies. It does this in minutes, with read-only access, and nothing in the tenant changes as a result of running it.

What it doesn't replace is judgement that depends on business context a tool can't see: whether a quiet user is quiet because they've left, or because they're on long-term leave and need to keep their access; whether a compliance requirement means a licence has to stay regardless of activity; or how to actually negotiate a better position with Microsoft or a CSP at renewal. That's genuinely where a good consultant or MSP earns their fee.

A rough decision framework

For most SMBs, the honest answer is both, in sequence: run a scan first because it costs nothing to see the number, then decide whether what it finds justifies bringing someone in to act on it: renegotiating with Microsoft, restructuring licensing tiers, or handling anything that needs a human decision rather than a data point.

Where this leaves MSPs

If you're an MSP reading this rather than an SMB, the framing matters even more. A scan isn't a threat to the advisory relationship, it's the data-gathering step your team currently spends billable hours on, done automatically before the conversation with your client even starts. The report becomes something your engineers act on rather than assemble by hand, and the client conversation shifts from "let us go and look into this" to "here's what we found, here's what we'd recommend doing about it".

That's a better use of a consultant's time, not a smaller one.