Montserrat has EOI relations with 90 countries through 18 treaties.
| Treaty Type | |
| Sum | 18 |
| DTC | 2 |
| FATCA | 1 |
| Multilateral | 2 |
| TIEA | 13 |
| Jurisdiction | Type | Treaty | Signed | Entered into force | Exchange of Information | |
|---|---|---|---|---|---|---|
| Albania | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2013 | Dec. 1, 2013 | On Request | ||
| Andorra | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Anguilla | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2014 | March 1, 2014 | On Request | ||
| Antigua and Barbuda | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Argentina | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Jan. 1, 2013 | Jan. 1, 2013 | On Request | ||
| Aruba | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Australia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2012 | Dec. 1, 2012 | On Request | ||
| TIEA | TIEA AU MS | Nov. 22, 2010 | Nov. 25, 2011 | On Request | ||
| Austria | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2014 | Dec. 1, 2014 | On Request | ||
| Azerbaijan | Multilateral | MCON-Amend | Sept. 1, 2015 | Sept. 1, 2015 | On Request | |
| Barbados | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Belgium | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA BE MS | Feb. 16, 2010 | Nov. 18, 2015 | On Request | ||
| Multilateral | MCON-Amend | April 1, 2015 | April 1, 2015 | On Request | ||
| Belize | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | ||
| Bermuda | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Bulgaria | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | July 1, 2016 | July 1, 2016 | On Request | ||
| Cameroon | Multilateral | MCON-Amend | June 30, 2015 | June 30, 2015 | On Request | |
| Canada | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Nov. 21, 2013 | Nov. 21, 2013 | On Request | ||
| Cayman Islands | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Jan. 1, 2014 | Jan. 1, 2014 | On Request | ||
| Chile | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| China | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Feb. 1, 2016 | Feb. 1, 2016 | On Request | ||
| Colombia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | July 1, 2014 | July 1, 2014 | On Request | ||
| Cook Islands | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Costa Rica | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Aug. 1, 2013 | Aug. 1, 2013 | On Request | ||
| Croatia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | June 1, 2014 | June 1, 2014 | On Request | ||
| Curaçao | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Cyprus | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | April 1, 2015 | April 1, 2015 | On Request | ||
| Czech Republic | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Feb. 1, 2014 | Feb. 1, 2014 | On Request | ||
| Denmark | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA DK MS | Nov. 22, 2010 | Oct. 21, 2011 | On Request | ||
| Multilateral | MCON-Amend | June 1, 2011 | June 1, 2011 | On Request | ||
| Estonia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Nov. 1, 2014 | Nov. 1, 2014 | On Request | ||
| Faroe Islands | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | June 1, 2011 | June 1, 2011 | On Request | ||
| TIEA | TIEA FO MS | Nov. 22, 2010 | No | On Request | ||
| Finland | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA FI MS | Nov. 22, 2010 | Dec. 31, 2011 | On Request | ||
| Multilateral | MCON-Amend | Dec. 21, 2010 | Dec. 21, 2010 | On Request | ||
| France | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | April 1, 2012 | April 1, 2012 | On Request | ||
| Georgia | Multilateral | MCON-Amend | June 1, 2011 | June 1, 2011 | On Request | |
| Germany | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2015 | Dec. 1, 2015 | On Request | ||
| TIEA | TIEA DE MS | Oct. 28, 2011 | March 31, 2012 | On Request | ||
| Ghana | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | ||
| Gibraltar | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Greece | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | ||
| Greenland | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA GL MS | Nov. 22, 2010 | No | On Request | ||
| Grenada | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Guernsey | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Aug. 1, 2014 | Aug. 1, 2014 | On Request | ||
| TIEA | TIEA GG MS | May 19, 2014 | No | On Request | ||
| Hungary | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2015 | March 1, 2015 | On Request | ||
| Iceland | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA IS MS | Nov. 22, 2010 | Nov. 26, 2012 | On Request | ||
| Multilateral | MCON-Amend | Feb. 1, 2012 | Feb. 1, 2012 | On Request | ||
| India | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | June 1, 2012 | June 1, 2012 | On Request | ||
| Indonesia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | May 1, 2015 | May 1, 2015 | On Request | ||
| Ireland | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | ||
| TIEA | TIEA IE MS | Dec. 14, 2012 | No | On Request | ||
| Isle of Man | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2014 | March 1, 2014 | On Request | ||
| Italy | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | May 1, 2012 | May 1, 2012 | On Request | ||
| Japan | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | Oct. 1, 2013 | Oct. 1, 2013 | On Request | ||
| Jersey | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | June 1, 2014 | June 1, 2014 | On Request | ||
| Kazakhstan | Multilateral | MCON-Amend | Aug. 1, 2015 | Aug. 1, 2015 | On Request | |
| Latvia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Nov. 1, 2014 | Nov. 1, 2014 | On Request | ||
| Liechtenstein | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Lithuania | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | June 1, 2014 | June 1, 2014 | On Request | ||
| Luxembourg | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Nov. 1, 2014 | Nov. 1, 2014 | On Request | ||
| Malaysia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Malta | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | ||
| Marshall Islands | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Mauritius | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2015 | Dec. 1, 2015 | On Request | ||
| Mexico | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2012 | Sept. 1, 2012 | On Request | ||
| Moldova | Multilateral | MCON-Amend | March 1, 2012 | March 1, 2012 | On Request | |
| Monaco | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Netherlands | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | ||
| TIEA | TIEA MS NL | Dec. 10, 2009 | Dec. 1, 2011 | On Request | ||
| New Zealand | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2014 | March 1, 2014 | On Request | ||
| Nigeria | Multilateral | MCON-Amend | Sept. 1, 2015 | Sept. 1, 2015 | On Request | |
| Niue | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Norway | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA MS NO | Nov. 22, 2010 | Dec. 19, 2011 | On Request | ||
| Multilateral | MCON-Amend | June 1, 2011 | June 1, 2011 | On Request | ||
| Poland | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Oct. 1, 2011 | Oct. 1, 2011 | On Request | ||
| Portugal | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 11, 2015 | March 11, 2015 | On Request | ||
| Romania | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Nov. 1, 2014 | Nov. 1, 2014 | On Request | ||
| Russia | Multilateral | MCON-Amend | July 1, 2015 | July 1, 2015 | On Request | |
| Saint Lucia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Saint Vincent and the Grenadines | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Samoa | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| San Marino | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2015 | Dec. 1, 2015 | On Request | ||
| Saudi Arabia | Multilateral | MCON-Amend | April 1, 2016 | April 1, 2016 | On Request | |
| Seychelles | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Oct. 1, 2015 | Oct. 1, 2015 | On Request | ||
| Singapore | Multilateral | MCON-Amend | May 1, 2016 | May 1, 2016 | On Request | |
| Sint Maarten (Dutch part) | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| Slovakia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2014 | March 1, 2014 | On Request | ||
| Slovenia | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | June 1, 2011 | June 1, 2011 | On Request | ||
| South Africa | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2014 | March 1, 2014 | On Request | ||
| South Korea | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | July 1, 2012 | July 1, 2012 | On Request | ||
| Spain | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Jan. 1, 2013 | Jan. 1, 2013 | On Request | ||
| Sweden | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| TIEA | TIEA MS SE | Nov. 22, 2010 | Dec. 31, 2015 | On Request | ||
| Multilateral | MCON-Amend | Sept. 1, 2011 | Sept. 1, 2011 | On Request | ||
| Switzerland | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2018 | Automatic | |
| DTC | DTC CH MS | Sept. 30, 1954 | Sept. 30, 1954 | Uncertain | ||
| Tunisia | Multilateral | MCON-Amend | Feb. 1, 2014 | Feb. 1, 2014 | On Request | |
| Turks and Caicos Islands | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Dec. 1, 2013 | Dec. 1, 2013 | On Request | ||
| Ukraine | Multilateral | MCON-Amend | Sept. 1, 2013 | Sept. 1, 2013 | On Request | |
| United Kingdom | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | Oct. 1, 2011 | Oct. 1, 2011 | On Request | ||
| DTC | DTC GB MS | Dec. 19, 1947 | Dec. 19, 1947 | Uncertain | ||
| United States of America | FATCA | FATCA US MS | Nov. 30, 2014 | Automatic | ||
| Virgin Islands (British) | Multilateral | MCAA | Oct. 29, 2014 | Sept. 1, 2017 | Automatic | |
| Multilateral | MCON-Amend | March 1, 2014 | March 1, 2014 | On Request |