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Research Report

2026 State of Microsoft 365 Storage

Your abandoned, overshared and stale content is costing you money and fueling every AI experience in your tenant.

The waste isn't where you'd look for it, and organizations are already paying millions every year in storage overage.

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The gap at a glance

  • The median tenant has used 57% of its SharePoint quota. That sounds comfortable, yet a quarter of organizations are on track to breach theirs within a year.
  • 56.7% of workspaces are inactive at 90 days. Together, they hold about 8.5% of storage.
  • A third of workspaces haven't been touched in a year. Only 10% of them sit under any review policy, and AI tools can still surface what's in them.

The full report shows where the waste actually sits, what waiting costs and what to fix. If you'd rather look at your own numbers, get in touch to talk it through.

Get the full report
2026-State-of-M365-Storage-cover

What you’ll find inside

A storage benchmark for your Microsoft 365 tenant

  • The problem is bigger than you think. Why workspace count and storage tell two different stories, and where the waste is really hiding.
  • The waste has a governance root cause. What happens to ownership and oversight as workspaces age.
  • Acting on it works. What 25.8 TB of reclaimed storage reveals about cleanup, and the real bottleneck.
  • The AI angle. How much stale content AI tools can still reach, and why the true number is higher.
  • The cost of doing nothing. What organizations already pay in overage, and where the bill is heading.

Plus:

  • Four fixes, ranked by impact
  • What Microsoft's native tools cover, and where they stop
  • Expert insights from Orchestry's leadership
 Download report