Core Viewpoint - Singapore has introduced new measures to curb rising property prices by increasing stamp duty for sellers who sell their properties within four years of purchase [1] Group 1: Policy Changes - The holding period for sellers' stamp duty will be extended from three years to four years [1] - The stamp duty rate will increase from 12% to 16% for the first year of ownership [1] - The revised tax measures will not affect public housing owners, as they are already subject to minimum residency requirements [1] Group 2: Market Context - There has been a significant increase in the number of private residential transactions with short holding periods in recent years [1]