Switzerland amends US tax treaty

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Switzerland amends US tax treaty

swiss-us.jpg

The Swiss parliament yesterday amended its tax treaty with the US allowing the IRS to easily identify US taxpayers with undeclared Swiss accounts.

The amendment sets a course for greater tax information sharing between the two countries. It is also hoped this will relieve some of the pressure the US is putting on Swiss banks, such as UBS, to share information.

Although the Swiss-US treaty has allowed information exchange for a number of decades, Swiss banking secrecy rules have seen the Switzerland interpreting these rules narrowly.

The new treaty will allow the IRS to ask the Swiss authorities to share the names of US taxpayers who exhibit “behavioural patterns” of tax evasion as set out by US law.

FURTHER READING:

Switzerland puts forward new tax compliance model

EXCLUSIVE: Rudolf Elmer explains why he blew the whistle on Julius Bär’s secret evasion activities

Ten things you need to know about the UK-Swiss tax deal

Swiss banks to pay $2.8 billion to Germany in tax evasion deal

more across site & shared bottom lb ros

More from across our site

Among those joining EY is PwC’s former international tax and transfer pricing head
The UK firm made the appointments as it seeks to recruit 160 new partners over the next two years
The network’s tax service line grew more than those for audit and assurance, advisory and legal services over the same period
The deal is a ‘real win’ for US-based multinationals and its announcement is a welcome relief, experts have told ITR
Tom Goldstein, who is now a blogger, is being represented by US law firm Munger, Tolles & Olson
In looking at the impact of taxation, money won't always be all there is to it
Australia’s Tax Practitioners Board is set to kick off 2026 with a new secretary to head the administrative side of its regulatory activities.
Ireland’s Department of Finance reported increased income tax, VAT and corporation tax receipts from 2024; in other news, it’s understood that HSBC has agreed to pay the French treasury to settle a tax investigation
The Australian Taxation Office believes the Swedish furniture company has used TP to evade paying tax it owes
Supermarket chain Morrisons is facing a £17 million ($23 million) tax bill; in other news, Donald Trump has cut proposed tariffs
Gift this article