List of effective International Agreements in the field of social security
(up to 1st January 2019)
- Agreement on State Social Security between the Republic of Bulgaria and the Republic of Albania - effective as of 1st May 1953.
- Convention on social security between the Republic of Bulgaria and the Federative Republic of Yugoslavia - effective as of 1st September 1958 – applied with Bosnia and Herzegovina.
- Agreement on social security between the Republic of Bulgaria and Ukraine - effective as of 1st April 2003.
- Agreement on social security between the Republic of Bulgaria and the Republic of North Macedonia - effective as of 1st August 2003.
- Agreement between the State of Israel and the Republic of Bulgaria on social security - effective as of 1st September 2009.
- Agreement on social security between the Republic of Moldova and the Republic of Bulgaria - effective as of 1st September 2009.
- Agreement on social security between the Republic of Korea and the Republic of Bulgaria - effective as of 1st March 2010.
- Agreement on social security between the Russian Federation and the Republic of Bulgaria - effective as of 20th March 2010.
- Agreement on social security between the Republic of Bulgaria and the Republic of Serbia - effective as of 1st February 2013.
- Agreement on social security between the Republic of Bulgaria and the Canada - effective as of 1st March 2014.
- Agreement on social security between the Republic of Bulgaria and Montenegro – effective as of 1st October 2016.
- Agreement on social security between the Republic of Bulgaria and Tunisian Republic – effective as of 1st May 2017.