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Automatic exchange of information AEOI

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

Forms AEOI

This page contains the forms for applying for exemption/refund of foreign withholding tax.

AEOI Qualification Committee

Tasks and composition

News

16 March 2026

Course listings (ICTax)

The Federal Tax Administration has updated the course listings and bonus shares 2025.

9 March 2026

Course listings (ICTax)

The Federal Tax Administration has updated the course listings and bonus shares 2025.

2 March 2026

Course listings (ICTax)

The Federal Tax Administration has updated the course listings and bonus shares 2025.

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 GermanFrench or Italian original 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.

Contact

Contact form

Federal Tax Administration FTA
Division for Exchange of Information in Tax Matters
Groupe SAI / CbCR
Eigerstrasse 65
3003 Berne