Emails have been identified that purport to be from the Federal Tax Administration (FTA) and use the following addresses (this list is not exhaustive): @federaltaxadministration.com, @ftaswiss.live. These addresses are not affiliated with the FTA and constitutes a phishing attempt. Reminder: Official emails from Swiss federal authorities are sent from addresses ending in @admin.ch (or a subdomain of xxx.admin.ch). Do not click on any links, do not open any attachments, and do not provide any personal, financial, or tax information. Report the message according to current procedures and delete it.

Further measures can be found on the website of the Federal Office for Cyber Security.
Federal Office for Cyber Security

Forms and instructions

The sample forms and guidelines are intended for cantonal tax authorities, employers and federal employees working abroad.

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Federal Tax Administration
Main Division DAS
Eigerstrasse 65
3003 Berne

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Forms and instructions

3b - Supplementary sheet for expenditure-based taxation (tax period 2025)

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