The Minimum Sum Scheme (MSS) was introduced in January 1987 to provide CPF members with a monthly income to support a basic standard of living during retirement. When the scheme first started, members were required to set aside a Minimum Sum (MS) of $30,000 in their Retirement Account (RA) upon reaching 55 (Chart 1).On 1 July 1995, the MSS was revised and members were required to set aside a MS of $40,000, of which at least $4,000 must be in cash and the remaining amount in the form of a property pledge. The cash portion aimed to provide members with a monthly income in retirement. In subsequent years, the MS was raised gradually by $5,000 a year until it reached $80,000 in 2003, with at least $40,000 required to be set aside in cash. A member could set aside the MS fully in cash, or up to 50% in the form of a property pledge. In 2003,another round of revisions to the MSS was announced. From 1 July 2004, the required MS would be raised yearly, and adjusted for inflation, until it reaches $120,000 (in 2003 dollars) in 2013.