Switzerland tests a FOSS escape route from Microsoft 365
Switzerland's Federal Chancellery is preparing to roll out a free and open-source (FOSS) workplace suite to around 3,000 government employees as an alternative running alongside Microsoft 365, part of a broader European push towards digital sovereignty. The move follows a feasibility study, and separately, the Swiss Armed Forces are moving even faster with their own migration away from Microsoft, reflecting growing unease among European public bodies about reliance on US cloud software providers.
The Chancellery's rollout, expected from late 2027, will initially cover 3,000 of the federal government's roughly 47,000 employees at a projected cost of CHF 9 million (£8.2 million), a fraction of the CHF 1.1 billion the government has previously spent on Microsoft licences. It builds on a "BOSS" proof-of-concept trial with 172 users testing browser-based tools for email, documents, calendars and video conferencing, which found the approach viable for standard tasks but not fully compatible with Microsoft 365 or intended as permanent infrastructure. The next phase, covering under 10% of federal staff over roughly 15 months, will use Germany's openDesk suite, already adopted by German states Schleswig-Holstein and Mecklenburg-Vorpommern. The plan sits within Switzerland's Digital Switzerland Strategy 2026 and 2024's EMBAG law, while the Swiss military aims to complete its own Microsoft exit by October 2026, echoing a similar LibreOffice migration by Austria's armed forces.
In short
- Switzerland's Chancellery to trial FOSS suite for 3,000 staff by 2027
- Swiss military migrating off Microsoft faster, targeting October 2026
- Part of wider European digital sovereignty push away from US cloud software
Steelman: both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
A parallel FOSS suite could reduce reliance on a small number of foreign suppliers, give Switzerland more control over sensitive public data and strengthen its ability to keep essential services running if access or terms change. The pilot suggests open tools can handle many routine tasks, and the projected cost is modest compared with past Microsoft licence spending; a gradual rollout lets government build experience while preserving choice.
The case against
Running two suites could add integration, training and support costs, while limited compatibility may complicate collaboration with colleagues and organisations that rely on Microsoft 365. The trial found the tools suitable for standard tasks but not as permanent infrastructure, so expanding before reliability and user needs are established could divert resources from a proven system. Digital autonomy is valuable, but it must be weighed against disruption and the full cost of maintaining alternatives.
Explained simply
Switzerland's central government has relied heavily on Microsoft software for years, spending over a billion Swiss francs on licences. Officials are now testing whether a "free and open-source" alternative, meaning software that isn't owned by a single company and can be freely inspected, modified and shared, could reduce that dependence. The Federal Chancellery, which supports the Swiss government's executive branch, is behind this particular trial.
The push forms part of a wider trend across European public bodies, which have grown increasingly uneasy about depending on American cloud and software companies for essential government functions. Concerns range from cost and control to worries about data sovereignty, meaning where sensitive information is stored and who ultimately has access to it. Germany, Austria and other countries have made similar moves, and Switzerland's approach draws directly on German-developed open-source tools.
This matters because government IT decisions affect how public money is spent and how secure and independent official systems are from outside companies or governments. The Swiss military is pursuing its own separate, faster move away from Microsoft, showing that this is not an isolated experiment but part of a broader rethink of how European institutions manage their digital infrastructure.