As English is not one of Switzerland's official languages, only the most important information on the Federal Tax Administration is translated into English. This translation is provided for information purposes only and has no legal force. Please refer to the German, French or Italian original version.
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Here you will find everything you need to know about the automatic exchange of information in tax matters (AEOI): the legal basis, the AEOI online service and the instructions for AEOI data transmission.
Banks, collective investment vehicles and insurance companies collect information on types of investment income and client account balances for the AEOI if the client is resident abroad for tax purposes.
The information is transmitted to the FTA via ePortal. The FTA forwards it to the relevant foreign tax authorities.
- AEOI legal basis and publications
Explanations, guidelines, forms for download
- AEOI Qualification Committee
Tasks and composition
- AIA online service (German version)
Creating an AEOI login
- Registering for the AEOI (German version)
Instructions
- AEOI data transmission (German version)
Instructions
- Taxpayer identification number for the AEOI (German version)
- Individual legal protection with the AEOI (German version)
in the area of data transmission
- AEOI and voluntary disclosure
(German version)
What is AEOI?
On 15 July 2014, the Council of the Organisation for Economic Co-operation and Development (OECD) adopted the new global standard for the international automatic exchange of information in tax matters (AEOI standard). So far, more than 100 countries, including all major financial centres, have committed to adopting this standard, including Switzerland.
Learn more
The AEOI standard provides for certain banks, collective investment vehicles and insurance companies to collect clients' financial information where these clients are tax residents abroad. This information includes all types of investment income and the account balance.
The information is transmitted to the Federal Tax Administration FTA, which forwards the data to the foreign tax authority responsible for the client. This transparency is intended to prevent tax base erosion as a result of tax being hidden from the tax authorities abroad.
The State Secretariat for International Finance (SIF) is responsible for coordination and strategic management in international financial and tax matters. The list of all partner states with which Switzerland has concluded an AEOI agreement is therefore published on the SIF website. The FTA is responsible for the enforcement of the AEOI.
The legal basis (in German) for the implementation of AEOI in Switzerland entered into force on 1 January 2017, meaning that data must be collected from 2017 onwards, with the first data exchange taking place in 2018.
Contact
Federal Tax Administration FTA
Division for Exchange of Information in Tax Matters
Groupe SAI / CbCR
Eigerstrasse 65
3003 Berne
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Last modification 09.01.2025