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Guide

Microsoft 365 cost optimization

A practical guide to why Microsoft 365 costs rise, the levers that bring them down, and how to realize the savings — for Switzerland and Europe.

Microsoft 365 cost optimization is the process of reducing what you pay for Microsoft 365 — across usage, rate, licensing and contract — without losing capability. It combines reclaiming unused or over-tiered licences with negotiating the right plan and terms at renewal, typically cutting spend by around 30%.

Why Microsoft 365 costs keep rising

Annual price increases

List prices climb year over year — the 2026 round raised some Microsoft 365 plans by up to 43%.

Bundling & SKU changes

New bundles (E7, Copilot, Agent 365) and forced SKU moves push customers toward higher tiers.

Over-licensing

Inactive users, double-licensed accounts and E5 seats using only E3 features quietly inflate spend.

Renewal timing

Without a plan before the renewal, you renew last year's estate at next year's prices.

The four levers

Every Microsoft 365 saving comes from one of these four levers.

Usage

Right-size to what teams actually use — reclaim inactive seats.

Rate

Best unit price via commitments, reservations and savings plans.

Licensing

Match plan and tier to real demand — no feature waste.

Contract

Optimize terms, discounts and timing at signing and renewal.

Where the savings are

The most common Microsoft 365 savings a licence analysis surfaces:

How Zation helps

Optimization Service

Demand-based procurement timed to your renewal — on average ~30% savings.

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FinOps

Continuous management so savings hold across the year, not just at renewal.

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Zation Platform

Audit-ready licence intelligence that finds these levers automatically.

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CSP

Flexible licensing with optimization built in — one partner.

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Related reading

Questions, answered

How much can we save on Microsoft 365?
On average Zation reduces Microsoft software spend by around 30%. The exact figure depends on how much over-licensing, tier mismatch and contract slack your estate carries — which a licence analysis makes visible quickly.
When is the best time to optimize?
Before a contract signing or renewal — that's when licensing and contract changes take effect. But usage-based savings (inactive seats, downgrades) can be realized any time.
Do we need a tool or a consultant?
Both. Tools alone don't save money: the Zation Platform finds the levers, and our advisory turns them into negotiated, implemented outcomes.

See your Microsoft 365 savings potential

Let's find your levers together.

Contact us See the platform