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Security alert

Warning ─ Phishing Attempt !

Updated on 22 Sept 2026

Several fraudulent emails are currently being sent from addresses ending in @miumg.edu.gt, with the senders posing as the Federal Tax Administration (FTA). Please note that the official email addresses of the Federal Administration always end in @admin.ch or a subdomain of @***.admin.ch. Please ignore these messages, do not click on any links and do not open any attachments. Thank you for your vigilance.Further protective measures can be found on the website of the National Cyber Security Centre (NCSC).

Tax identification number for automatic exchange of information

On 1 January 2017, the legal basis for the international automatic exchange of information in tax matters (AEOI) came into force in Switzerland. The new global standard for AEOI is intended to prevent cross-border tax evasion. To date, around 100 countries have committed to adopting this standard.

As English is not one of Switzerland's official languages, only the most important information is translated into English. Please refer to the German, French or Italian original version.