Mauritania does not have a bilateral investment agreement or bilateral taxation treaty with the United States.  However, the country is a beneficiary of the Generalized System of Preferences (GSP), which allows marketable goods produced in Mauritania to enter the U.S. duty-free.

Mauritania is a member of the Arab Maghreb Union (Algeria, Libya, Morocco, and Tunisia) economic trade block.  In 2017, Mauritania and Economic Community of West African States (ECOWAS) countries signed an Association Agreement to allow free flow of goods in the region.  Mauritania has also been a member of the World Trade Organization (WTO) since May 31, 1995; however, the country is in a transitional stage regarding its commitments and is currently engaging the WTO to ensure it makes progress towards complete compliance. 

Mauritania is a signatory to the Cotonou Agreement between the European Union (EU) and the group of African, Caribbean and Pacific (ACP) countries, and thus enjoys free access to the EU market.  Due to its least-developed country status, Mauritania also benefits from duty-free access to the European market under the Everything-But-Arms initiative.

Mauritania was among the first African countries to ratify the African Continental Free Trade Area agreement (AfCFTA) in 2018, with the ambition of encompassing the entire African continent and its 1.2 billion consumer strong market.  The AfCFTA exempts importation taxes for good and services produced in Africa.