The purpose of this chapter is to review the Turkish private pension system as a key determinant of sustainable development of the country. The private pension system is of great significance in order to promote sustainable development. This is attributable to the fact that high level of total savings which are secured through individual savings are conducive to investments and in turn finances sustainable development and growth. Turkey, as an emerging economy, is considered to be one of those economies with low level of total savings. In an effort to deal with this issue, governments paid attention to an increasing level of savings of households. Individual retirement system (private pension system) is devised so as to increase savings and to fund investments with national sources. Therefore, it is safely argued that the very rationale behind the introduction of private pension system is associated directly with the aim of increasing total savings in the economy and ensuring sustainable development.