Microsoft faces UK antitrust probe as the CMA examines its dominance in business software, bundling practices, cloud licensing, and AI integration, with potential rules that could reshape competition and customer choice.

The UK has started a major antitrust investigation into Microsoft’s dominance in business software. The case could change how the company sells and packages its products in the country. The Competition and Markets Authority (CMA) is looking into whether Microsoft’s system is reducing competition and limiting choices for businesses.

Why is UK taking a closer look at Microsoft’s software empire

Britain investigate Microsoft to assess whether Microsoft should be given “strategic market status” (SMS) in business software. If confirmed, the CMA would gain stronger powers to impose targeted rules on how the company operates in the UK market.

At the center of the investigation is Microsoft’s wide product ecosystem, including Windows, Word, Excel, Teams, Copilot, and other tools often sold together. Regulators are questioning whether this bundling reduces fair competition.

The CMA is also reviewing:

  • Whether customers can easily combine Microsoft tools with rival software

  • How AI competitors integrate with Microsoft systems

  • Whether licensing practices affect competition in cloud services

  • What is driving concerns about competition

The regulator has raised concerns that Microsoft’s software licensing rules may put cloud competitors at a disadvantage. It suggests these practices could make competition less fair. Customers may also end up paying more or face limits when they try to use Microsoft products on cloud services run by other companies.

CMA Chief Executive Sarah Cardell said business software plays a central role in the UK economy, with hundreds of thousands of organisations relying on it daily. She added that the goal is to ensure businesses get “choice, innovation and competitive prices.”

AI and cloud in the investigation

A major focus of the investigation is Microsoft’s increasing push into artificial intelligence, especially through Copilot, which is now built into Microsoft 365 products. The CMA will look at whether this makes it harder for other AI tools to compete.

Cloud services are also being closely examined. Earlier findings suggested that Microsoft’s licensing approach may be limiting competition in the cloud market and that concern is now part of this new investigation as well.

Key areas under review include:

  • Bundling of productivity software and operating systems

  • Cloud licensing rules and pricing practices

  • Integration of AI tools like Copilot

  • Interoperability with third-party software

What are competitors and stakeholders saying

Industry players have been raising concerns for a long time about Microsoft’s pricing and licensing system. Some cloud companies say customers end up paying more if they don’t use Microsoft’s own cloud services and others believe this creates an unfair advantage and makes competition harder.

A Microsoft spokesperson said the company will work with the regulator “quickly and constructively” during the review.

What happens next

The investigation has to be finished within nine months. A decision on whether Microsoft gets “strategic market status” is expected by February 2027. If that happens, the CMA could introduce rules that change how Microsoft bundles its products or sets licensing prices in the UK.

The results could also affect regulators in other regions like the US, Europe, and Asia, where similar concerns about big tech software practices are already under review.

Overall, this case reflects a broader global effort to regulate large software companies as AI, cloud computing, and productivity tools become more closely linked. As Business Fortune observes, the final outcome could change how enterprise software is sold and shared, possibly giving more room to competitors while forcing Microsoft to rethink parts of its business strategy.