UK probes Microsoft Office bundling

Britain’s Competition and Markets Authority opened a strategic market status investigation into Microsoft on May 14, 2026, widening scrutiny of the company’s grip on workplace software. The probe will examine whether Microsoft’s business software ecosystem — including Windows, Word, Excel, Teams and Copilot — gives it a position that can be used to limit customer choice. The regulator said it wants to know whether bundling, interoperability limits and default settings make it harder for rivals to compete. Microsoft said it would work “quickly and constructively” with the review. ### Why is the UK looking at bundling instead of just one product? The CMA said the case is about Microsoft’s “business software ecosystem,” not only one app or one subscription tier. That scope covers productivity software, personal computer and server operating systems, database management systems and security software used by UK organizations. (gov.uk) The regulator said it has heard that UK customers may not always be able to combine Microsoft software effectively with products from other providers. It said the investigation will test whether product bundling, limits on interoperability and default settings prevent switching and weaken the competitive pressure Microsoft faces from rivals. (gov.uk) ### Why are Teams and Copilot part of the same case as Word and Excel? The CMA said workplace software is changing rapidly as AI features are added to familiar tools, and it specifically wants to examine how AI competitors can integrate with Microsoft’s software. That means the inquiry reaches beyond classic Office pricing questions and into whether customers can mix Microsoft products with outside AI and collaboration services. (gov.uk) Sarah Cardell, the CMA’s chief executive, said the agency’s aim is to understand how these markets are developing, Microsoft’s position within them, and what targeted action might be needed so UK organizations can benefit from “choice, innovation and competitive prices.” Reuters reported that the British probe will look at how AI competitors are able to integrate with Microsoft’s business software. (gov.uk) ### How does this connect to the earlier cloud fight? The CMA said on March 31, 2026, that it would launch the Microsoft software investigation after reviewing connected issues across cloud services and business software. In that earlier package, the regulator said an SMS designation would let it address a major concern from its cloud market investigation: Microsoft’s software licensing practices in cloud services. (finance.yahoo.com) The March announcement also said Microsoft and Amazon had taken steps on cloud egress fees and interoperability after engagement with the regulator, with the CMA planning to keep reviewing whether those changes help UK customers. Reuters reported that the watchdog chose to examine Microsoft’s cloud licensing practices again inside the new SMS probe. ### What does “strategic market status” let the regulator do? (gov.uk) The CMA said an SMS investigation is the route it uses to decide whether a company should be designated under the UK’s digital markets regime, which took effect in January 2025. This is the fourth such investigation opened since those powers came into force. Reuters reported that an SMS designation does not itself assume wrongdoing, but it can allow targeted interventions to encourage competition. (gov.uk) In the March 31 statement, the CMA said such a designation could be used to tackle remaining concerns around licensing, cloud competition and interoperability as AI becomes more embedded in business software. (gov.uk) ### What did Microsoft say? Microsoft said in a statement cited by Reuters that it is “committed to working quickly and constructively with the CMA to facilitate its review of the business software market.” The company did not, in the material reviewed here, concede the regulator’s concerns on bundling or interoperability. More than 15 million commercial users in Britain use products across Microsoft’s business software ecosystem, according to the CMA, and the agency said hundreds of thousands of UK businesses and public sector organizations rely on those tools every day. (finance.yahoo.com) Those figures help explain why the regulator framed the case as one affecting a broad part of the UK economy. ### What happens next, and when? The CMA said on May 14 that it wants to hear from businesses, challenger technology companies, customers and rivals as it tests whether Microsoft should receive strategic market status in business software. Reuters reported that the investigation is due to end by February 2027. Any next step would come through the CMA’s formal process, with Microsoft, customers and competitors all part of the record the regulator is now building. (gov.uk) The case will determine whether the UK imposes targeted conduct requirements on how Microsoft packages software, handles interoperability or addresses licensing concerns tied to cloud and AI. That last point is an inference from the regulator’s published scope and March statement about potential action following an SMS designation.