Double taxation

AUTOMATIC INFORMATION EXCHANGE (AIA) The financial institutions (and insurances) transfer information to the national tax authorities, who automatically forward the information to


From the beginning of 2018 the Swiss tax authorities will receive the bank, insurance and shareholding information of individuals resident in Switzerland during 2017. The Swiss authorities can also request information from the countries with a double taxation agreement with administrative assistance for previous years.

AEOI(German AIA)

The financial institutions (and insurances) transfer information to the national tax authorities, who automatically forward the information to the authorities in the investor’s country of origin.


Regarding individuals the following information will be transmitted:

  • Name and address
  • Tax identification number (TIN: participant identification number), with Swiss residents this is the AHV-number
  • The investor’s name and date of birth
  • Interests and dividends
  • Income from specific insurance contracts
  • Account balance and revenue from selling financial assets


States that exchange Data with Switzerland through AIA (as of the 31th Decembre 2018)

I. States with first data exchange for 2017

Aland, Australia, Austria, Azores, Belgium, Bulgaria, Canada, Canary Islands, Croatia, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar, Greece Guadeloupe, Guernsey, Iceland, Ireland, Isle of Man, Italy, Hungary, Japan, Jersey, Latvia, Lithuania, Luxembourg, Madeira, Malta, Martinique, Mayotte, the Netherlands, Norway, Poland Portugal, Réunion, Romania, Sint Maarten, Sweden, Slovakia, Slovenia, Spain, South Korea, United Kingdom, Cyprus.

II. States with first data exchange for 2018

Andorra, Argentina, Barbados, Bermuda, Brasilia, British Virgin Islands, Cayman Islands, Chile, Faereo Islands, Greenland, India, Israel, Mauritius, Mexico, Monaco, New Zealand, San Marino, Seychelles, Singapore, South Africa, Turkus and Caicos Islands, Uruguay, Aruba, Belize, China, Colombia, Cook Islands, Costa Rica, Curacao,  Hong Kong, Indonesia, Liechtenstein, Malaysia, Montserrat, Russia,  Saudi Arabia, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines.

III. States with first data exchange for 2019

Anguilla**, Antigua und Barbuda°*, Aruba°°,Bahamas**, Bahrain**, Katar** - °*, Kuwait*°*, Marschallinseln*, Nauru**, Panama°°, Vereinigte Arabische Emirate**, Überseegemeinden der Niederlande (Bonaire, Saint Eustatius, Saba).

III. States with first data exchange for 2019/20


* These partner jurisdictions must implement a Global Forum action plan on confidentiality and data security. There will be no reciprocal exchange of data until this action plan has been successfully implemented. Reporting Swiss financial institutions must nevertheless collect the relevant data from the time of activation of the AEOI and forward it to the Federal Tax Administration by the specified deadline. The FTA will transmit this data to the partner jurisdictions only if they have satisfactorily implemented their action plan and an updated Global Forum review has confirmed this.

** These jurisdictions have declared themselves to be "permanent non-reciprocal jurisdictions", i. e. they will supply account information to the partner jurisdictions on a permanent basis but will not receive such data.

*°* As the convention on the mutual administrative assistance in tax matters will enter into force in 2019 in these partner jurisdictions, it will be applicable to taxable periods beginning on or after 1 January 2020. Therefore, the first exchange of information will be carried out in 2021.

*° Switzerland has signed bilateral agreements with Hong Kong and Singapore regarding the introduction of the AEOI from 2018/2019. The agreements are provisionally applied since 1 January 2018.


Switzerland has concluded double taxation agreements with administrative assistance with all European countries. The automatic information exchange (AIA) from 2017 between Switzerland and the EU as well as with other countries will be executed in the first six months of 2018. In the following year more countries will join. In addition, Switzerland can receive all relevant tax data from up to seven years prior to 2018 from several countries with double taxation agreement with administrative assistance.