Sierra Leone has four tax agreements in force, as reported in its response to the Peer Review questionnaire, including the multilateral Supplementary Act A/SA, 5/12/18 adopting community rules for the elimination of double taxation with respect to taxes on income, capital and inheritance and the prevention of tax evasion and avoidance within the ECOWAS Member States (the ECOWAS Supplementary Act) concluded with fourteen treaty partners. One of those agreements, the ECOWAS Supplementary Act, complies with the minimum standard.
Sierra Leone has not signed the MLI.
Sierra Leone is implementing the minimum standard through the inclusion of the preamble statement and the PPT.