Microsoft Just Cut Your Base Margin 5% — Here's the Growth-Margin Playbook to Make It Back

A client of ours runs a 40-seat architecture practice in Nottingham. For three years their Microsoft 365 bill looked almost identical month to month: Business Premium, renewed each year, barely a conversation beyond "same again?" It was easy money. It was also exactly the kind of account that just got more expensive to run.

From 1 October, Microsoft restructured the margin that partners earn through the New Commerce Experience in CSP. The headline for most MSPs is a reduction of around five percentage points on the base partner margin for standard commercial subscriptions. Read it quickly and it sounds like a pay cut handed down from Redmond. Read it properly and it's something else entirely: Microsoft has stopped paying you to do nothing, and started paying you more to do the work that actually grows a customer.

This post does the arithmetic and gives you a 90-day plan. Not a shrug and a "prices went up" email to clients — an actual change in how you sell.

What changed, in plain terms

Microsoft's partner incentives have always rewarded two things: selling a licence and then helping the customer use it. For years the balance leaned heavily toward the first. You could land a renewal, bank the margin, and never touch the account again until next year.

The October change rebalances that. The base margin — the bit you get simply for transacting the licence — has come down. The incentive attached to adoption, growth, new workloads and expansion has gone up, or stayed intact while the base shrank around it. The net effect depends entirely on your motion. If you sell flat renewals, you're worse off. If you drive usage and expansion, you're better off, often meaningfully so.

That's the whole game. Microsoft is no longer subsidising the lazy renewal.

The math on a flat renewal

Let's use round numbers so the logic is clear.

Take that 40-seat architecture firm on Business Premium at roughly £18.10 per user per month. That's about £8,688 a year in licensing.

Say your old base margin was around 15%. That's roughly £1,303 a year, for which you essentially pressed renew.

Knock five points off and you're at 10%, or about £869. You've just lost £434 a year on that one account for doing exactly what you did before. Across 30 similar clients, that's £13,000 gone from your gross margin annually — no change in effort, no change in cost, just less at the bottom.

That is the net loss scenario, and it's real. If you do nothing, this change costs you money.

The math on a growth motion

Now run the same account differently.

Suppose you have a conversation about Copilot. You don't need all 40 seats — you need the ten people who live in Word, Excel and Teams all day. Microsoft 365 Copilot sits at around £24.70 per user per month. Ten seats is roughly £2,964 a year in new licensing.

At even a modest growth-weighted margin — let's say the adoption incentives push you to an effective 20% on that new spend — that's about £593 of fresh margin on a single upsell. You've already more than recovered the £434 you lost on the base renewal.

Keep going. Move the firm from Business Premium to Microsoft 365 E5 for the ten people handling sensitive project and client data. The uplift per seat is significant, and E5 carries the Defender, Purview and Entra capabilities you can build managed services around. Say that adds £3,500 a year in licensing with a growth-weighted margin of 18% — another £630.

So on one 40-seat account:

• Flat renewal only: minus £434 versus last year
• Renewal plus Copilot plus a partial E5 move: minus £434 plus £593 plus £630 = plus £789

That's a swing of over £1,200 per account, driven not by squeezing the customer but by selling them things they genuinely benefit from. And none of this counts the recurring managed-services revenue you wrap around Defender, Purview and Copilot adoption — which is where the real money sits.

Why this favours MSPs who actually manage things

Here's the part that works in your favour. Pure-play licence resellers can't do this. They can transact a Copilot seat, but they can't run the Copilot readiness assessment, fix the SharePoint permissions mess that makes Copilot dangerous, configure Purview data-loss prevention, or stand up Defender properly.

You can. The October change rewards exactly the capabilities that separate a managed IT provider from a box-shifter. The workloads where the growth margin now lives — Copilot, E5, Defender, Purview, and the broader security estate — are precisely the ones that need hands-on configuration, governance and ongoing management.

So the change doesn't just move margin around. It widens the gap between MSPs who do real work and resellers who don't.

The 90-day transition plan

Knowing what happened isn't the same as knowing what to do on Monday. Here's the sequence.

Days 1–15: Know your book.

• Export every CSP subscription you manage and tag each account: flat renewal, partial upsell potential, or full expansion candidate.
• Model the margin hit on your flat renewals using real numbers. You need to see the figure to feel the urgency.
• Identify your top 20 accounts by seat count — these are where upsell moves pay back fastest.

Days 16–45: Build the offers.

• Create a Copilot readiness assessment as a paid, fixed-price engagement. This solves the permissions and data-governance problems before Copilot goes live, and it opens the Purview and Defender conversation naturally.
• Package an E5 or E3-to-E5 uplift with a clear security story: Defender, Entra conditional access, Purview DLP. Sell the outcome, not the SKU.
• Write the client-facing one-pager. Lead with what they get, not with Microsoft's pricing mechanics.

Days 46–75: Have the conversations.

• Book reviews with your top 20 accounts. Frame each as a security and productivity review, not a renewal.
• Run at least five Copilot readiness assessments. Even one "your SharePoint is wide open" finding will sell the next three.
• Train your account managers on the three-sentence pitch for Copilot, E5 and Defender. They should be able to spot the opening in any review.

Days 76–90: Lock in the motion.

• Set a standing rule: no renewal goes out without a documented expansion conversation attached.
• Add adoption metrics to your QBRs so growth incentives keep flowing — Microsoft pays for usage, not just the sale.
• Review the numbers. You should see new growth margin landing and your base-margin loss shrinking in the mix.

The honest summary

Microsoft cut the base margin because the flat-renewal model was never good for anyone except the partner collecting the cheque. Customers on Business Premium who never adopt half of what they pay for aren't well served, and they churn more readily when someone cheaper comes knocking.

The partners who treated CSP as a transaction will feel this as a pay cut. The partners who treat it as the start of a relationship — Copilot, E5, Defender, Purview, real adoption, real management — will make the five points back and then some.

The maths is clear. One upsell per account more than covers the base-margin loss. The only question is whether you start the conversation. If you'd like a hand modelling your own book and building the Copilot and E5 offers, that's exactly the work we do — give us a call.