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Digital threats

Email phishing

Updated on 2 Apr 2026

Phishing emails purporting to be from the Federal Tax Administration (FTA) are currently in circulation. These claim to contain an official notification regarding a refund. Please ignore these emails, do not click on any links they contain, do not disclose any personal data and delete these emails. Further measures can be found on the website of the Federal Office for Cyber Security.

Portugal

Here you will find the forms related to the double taxation agreement concluded by Switzerland with Portugal as well as any other state-related publications.

Forms

Claim to refund of Swiss anticipatory tax for entitled ones with domicile abroad

Order form as printed matter (German)

Snapform Viewer

Claim to refund of foreign tax at source for entitled ones with domicile in Switzerland

Mod. 21-24 RFI - Formulários portugês

Mod. 21-24 RFI - Forms english

Mod. 02-DJR

PEDIDO DE REEMBOLSO PARCIAL OU TOTAL DE IMPOSTO SOBRE O RENDIMENTO DAS PESSOAS COLETIVAS (IRC) RETIDO NA FONTE CLAIM FOR PARTIAL OR TOTAL REPAYMENT OF CORPORATE INCOME TAX (IRC) WITHHELD AT SOURCE

Contact

for questions on the application of the double taxation agreement

dba(at)sif.admin.ch

+41 58 462 71 29

State Secretariat for International Finance SIF
Double Taxation Treaties
Bundesgasse 3
3003 Berne

for questions regarding refunds and foreign withholding tax

If you have any questions, please contact us using the contact form.

Federal Tax Administration
Main Division DWS
Eigerstrasse 65
3003 Berne