On 3 October 2017, the Federal Tax Administration (FTA) published the updated Circular Letter No. 15 (Bonds and derivative financial instruments as subject to direct federal tax, withholding tax and stamp duties).

In particular, the updated circular updates and clarifies the legal changes in the area of stamp duties (abolition of the issue tax on borrowed capital) that have taken place since the last publication in 2007 and contains further updates and clarifications.