Iran has EOI relations with 30 countries through 30 treaties.
| Treaty Type | |
| Sum | 30 |
| DTC | 30 |
| Jurisdiction | Type | Treaty | Signed | Entered into force | Exchange of Information | |
|---|---|---|---|---|---|---|
| Austria | DTC | DTC AT IR | March 11, 2002 | July 11, 2004 | Uncertain | |
| Azerbaijan | DTC | DTC AZ IR | March 10, 2009 | Jan. 25, 2010 | Uncertain | |
| Bahrain | DTC | DTC BH IR | Oct. 19, 2002 | Nov. 17, 2007 | Uncertain | |
| China | DTC | DTC CN IR | April 20, 2002 | Aug. 14, 2003 | Uncertain | |
| Croatia | DTC | DTC HR IR | May 20, 2003 | Oct. 30, 2008 | Uncertain | |
| Cyprus | DTC | DTC CY IR | Aug. 4, 2015 | No | Uncertain | |
| France | DTC | DTC FR IR | Nov. 7, 1973 | April 10, 1975 | Uncertain | |
| Georgia | DTC | DTC GE IR | Nov. 3, 1996 | Feb. 14, 2001 | Uncertain | |
| Germany | DTC | DTC DE IR | Dec. 20, 1968 | Dec. 30, 1969 | Uncertain | |
| Hungary | DTC | DTC HU IR | Nov. 30, 2015 | No | Uncertain | |
| Indonesia | DTC | DTC ID IR | April 30, 2004 | Jan. 1, 2011 | Uncertain | |
| Italy | DTC | DTC IR IT | Jan. 19, 2005 | No | Uncertain | |
| Kazakhstan | DTC | DTC IR KZ | Jan. 15, 1995 | April 3, 1999 | Uncertain | |
| Kuwait | DTC | DTC IR KW | Jan. 16, 2008 | Feb. 12, 2011 | Uncertain | |
| Macedonia | DTC | DTC IR MK | July 12, 2000 | Jan. 17, 2014 | Uncertain | |
| Malaysia | DTC | DTC IR MY | Nov. 11, 1992 | April 15, 2005 | Uncertain | |
| Morocco | DTC | DTC IR MA | Feb. 25, 2008 | No | Uncertain | |
| Pakistan | DTC | DTC IR PK | May 27, 1999 | April 24, 2004 | Uncertain | |
| Poland | DTC | DTC IR PL | Oct. 2, 1998 | Jan. 1, 2007 | Uncertain | |
| Romania | DTC | DTC IR RO | Oct. 3, 2001 | Oct. 30, 2007 | Uncertain | |
| Russia | DTC | DTC IR RU | March 6, 1998 | Jan. 1, 2003 | Uncertain | |
| Senegal | DTC | DTC IR SN | June 20, 2010 | No | Uncertain | |
| Slovenia | DTC | DTC IR SI | Sept. 20, 2011 | No | Uncertain | |
| South Africa | DTC | DTC IR ZA | Nov. 3, 1997 | Nov. 23, 1998 | Uncertain | |
| South Korea | DTC | DTC IR KR | July 6, 2006 | Dec. 9, 2008 | Uncertain | |
| Spain | DTC | DTC ES IR | July 19, 2003 | Jan. 30, 2006 | Uncertain | |
| Switzerland | DTC | DTC CH IR | Oct. 27, 2002 | Dec. 31, 2003 | Uncertain | |
| Tunisia | DTC | DTC IR TN | July 16, 2001 | Jan. 1, 2006 | Uncertain | |
| Turkey | DTC | DTC IR TR | June 17, 2002 | Feb. 27, 2005 | Uncertain | |
| Ukraine | DTC | DTC IR UA | May 22, 1996 | July 21, 2001 | Uncertain |