The complete texts of the following tax treaty documents are available in Adobe PDF format. If you have problems opening the pdf document or viewing pages, download the latest version of Adobe Acrobat Reader. For further information on tax treaties refer also to the Treasury Department's Tax Treaty Documents page. Income Tax Treaty PDF - 1996 Technical Explanation PDF - 1996 Protocol Amending the Convention between the United States of America and the Swiss Confederation for the Avoidance of Double Taxation with Respect to Taxes on Income, signed at Washington on October 2, 1996, signed on September 23, 2009, at Washington, as corrected by an exchange of notes effected November 16, 2010 and a related agreement effected by an exchange of notes on September 23, 2009 PDF - 2009 Technical Explanation of the Protocol Amending the Convention Between the United States of America and the Swiss Confederation for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income PDF - 2011