An official website of the United States Government Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Taxation, Double Income

Protocol Amending the Convention and Protocol of February 22, 1990.

Agreement signed at Madrid January 14, 2013; entered into force November 27, 2019.

with Memorandum of Understanding and Exchange of Notes.

Download Agreement [4 MB]

U.S. Department of State

The Lessons of 1989: Freedom and Our Future