Administrative Assistance according to the IWT

The Swiss Confederation and the United Kingdom of Great Britain and Northern Ireland agreed on 6 October 2011 to facilitate the collaboration in tax matters. The parties agreed to conclude an international agreement on withholding tax including clauses for administrative assistance.

This agreement allows the exchange of information with regard to the existence of bank accounts and deposits in Switzerland where the beneficial owner is liable to British tax.

The Service for the Exchange of Information in Tax Matters SEI at the Federal Tax Authority is responsible for the procedure between the United Kingdom of Great Britain and Northern Ireland and Switzerland.

The agreement entered into force on 1. January 2013. The maximum number of requests is limited to 500 per year for the first three years.

The forms for the international withholding tax agreement and the translations of the disclosure orders in French, German and Italian can be found under the following link:

Last modification 11.05.2022

Top of page


Contact form

+41 584 62 71 72

Federal Tax Administration
Division for exchange of information in tax matters
Eigerstrasse 65
3003 Berne

Print contact