The somoni was introduced on 30 October 2000, replacing the rouble, at the rate of SM 1 = 1,000 Rbls.
One somoni is divided into 100 dirams. Diram banknotes were first introduced on 30 October 2000, and coins were later introduced in 2001 with the intention of creating a more efficient monetary system and gradually replacing the diram notes. This was also the first time circulating coins were used in Tajikistan since independence in 1991.