Liechtenstein and the United States are newly engaged in negotiations towards a DTA.
US Treasury Secretary Steven Mnuchin on February 6, 2018, agreed to pursue DTA negotiations with Armenia.
Taiwanese Premier Lai Ching-Te has directed the Ministry of Finance to work towards a Taiwan-US tax treaty.
According to recent media reports, Vietnam will soon ratify its new DTA with the United States.
Speaking on September 26, US Treasury Secretary Jack Lew disclosed that the US and Argentina are to negotiate a comprehensive double taxation agreement.
In a August 25, 2016, consultation paper, the Irish Finance Department indicated that Ireland and the United States may amend their DTA.
Seven DTAs or DTA Protocols, with Switzerland, Luxembourg, Spain, Poland, Chile, Hungary, and Japan were forwarded to the US Senate, after their approval by the Committee on Foreign Relations on November 10, 2015.
The United States and Vietnam signed a DTA on July 7, 2015.
San Marino and the United States are engaged in negotiations towards a DTA, the San Marino Government said on June 23, 2015.
According to preliminary media reports, the Protocol amending Mexico's DTA with the United States entered into force on April 16, 2015.
An amendment to the 2002 tax information exchange agreement between the Isle of Man and the United States entered into force on July 1, 2014.
The tax information exchange agreement between the United States and Hong Kong entered into force on June 20, 2014.
A vote to expedite domestic ratification procedures in the US with respect to the DTA Protocol signed with Switzerland failed on May 22, 2014, as a result of a block by Senator Rand Paul in the US Senate.
A DTA signed between the United States and Poland was forwarded to the United States's Senate as part of the nation's domestic ratification procedures on May 20, 2014.
US President Barack Obama has forwarded the DTA Protocol signed with Spain to the nation's Senate for ratification. The pact would update the two nations' 1990 DTA.
Hong Kong on April 25, 2014, gazetted the tax information exchange agreement the territory signed with the US as part of the territory's ratification procedures.
A new tax information exchange agreement between the Cayman Islands and the United States will enter into force on April 14, 2014.
Hong Kong and the United States signed a tax information exchange agreement on March 25, 2014.
The US Senate Committee on Foreign Relations held talks on February 26, 2014, on the DTA Protocols between the United States and Switzerland and Luxembourg, and DTAs with Hungary and Chile, as part of the nation's domestic ratification procedure.
Mauritius and the United States signed a TIEA and an inter-governmental agreement on December 27, 2013.
During a meeting on November 14, 2013, Vietnamese Prime Minister Nguyen Tan Dung called for negotiations towards a DTA with the United States to be concluded in earnest.
Poland completed its domestic ratification procedures in respect of the DTA the nation signed with the United States on August 6, 2013.
Colombia on July 16, 2013, completed its domestic ratification procedures in respect of the TIEA the nation signed with the United States on March 30, 2001, publishing law no. 1666 in its Official Gazette.
Poland's parliament on June 21, 2013, approved the DTA signed with the United States.
According to preliminary media reports, the TIEA between Brazil and the United States entered into force on May 16, 2013.
The tax information exchange agreement between Brazil and the United States entered into force on March 13, 2013.
The United States and Poland signed a new DTA on February 13, 2013, to replace their existing 1974 Convention.
The United States and Japan signed a DTA Protocol on January 24, 2013.
Spain and the United States signed a Protocol to amend their DTA on January 14, 2013.
The Canadian government announced on November 8, 2012, that it had begun negotiations with the United States towards a Protocol to their DTA to enhance the countries' capacity to exchange tax information.
The Isle of Man's Chief Minister, Allan Bell said on October 15, 2012, that the territory is to renegotiate its TIEA with the United States.
The US tax authority, the Internal Revenue Service, announced on August 20, 2012, that the United States and Belgium have agreed to expand the scope of their 2006 DTA to also include taxes imposed at municipal level in Belgium.
The Japanese Ministry of Finance on June 15, 2012, announced that an agreement in principle has been reached with the United States on a draft protocol to their bilateral DTA.
The Spanish government confirmed on June 4, 2012, that the United States and Spain initialled a Protocol on May 25, 2012, to revise the DTA between Spain and the US.
The Spanish government has confirmed that on May 25, 2012, two years of negotiations towards a DTA Protocol with the United States, to amend their existing agreement, were concluded.
On May 17, 2012, United States President Barack Obama forwarded the pending DTA signed between Chile and the United States on February 4, 2010, to the Senate as part of the ratification procedures necessary to bring the agreement into force.
The first formal negotiations on altering the 2004 DTA took place between June 8-10. The intention is to bring the DTA into line with the current US and Japanese tax treaty policies.