UK regulator probes whether Microsoft misled 365 subscribers

Britain’s Competition and Markets Authority is investigating whether Microsoft misled personal and family customers over Microsoft 365 subscription plans. The consumer protection enforcement case centers on how Microsoft marketed the plans, and whether customers were given clear upfront information about subscription options when the company changed the service.

The CMA said it was looking at Microsoft’s marketing of Microsoft 365 and at whether people were told clearly enough about changes before they renewed. The probe also reaches pricing information after Copilot was added to Microsoft 365 plans, a detail that matters for households, students and small users who buy consumer subscriptions without the benefit of enterprise procurement teams.

The focus on Microsoft’s disclosure and renewal practices puts subscription design under a regulatory microscope. In this case, the issue is not a classic antitrust fight over market share alone; it is whether the company’s messaging made it hard for consumers to compare plans, understand what they were buying, or make an informed decision before recurring charges kicked in. The CMA’s concern extends to changes made from January 2025, when Microsoft automatically provided existing customers with access to new features.

The investigation also lands inside a broader squeeze on Microsoft’s business model in the UK. Separate CMA material shows the regulator has opened a strategic market status investigation into Microsoft’s business software ecosystem and is pursuing a cloud services market investigation involving the company. Together, the cases show British officials pressing on both competition and consumer protection as large technology firms bundle software, cloud products and recurring billing into one subscription ecosystem.

Microsoft is also under scrutiny in other European markets. Italy’s regulator probed the company over a Microsoft 365 price hike on June 26, adding another front to the debate over how the software giant explains increases, renewals and added features to customers. For Microsoft, the UK case carries reputational and potentially financial risk in a major market, while for consumers it could force clearer pricing language, simpler renewal notices and fewer surprises when subscriptions roll over.