You are liable to pay SSD only if you sell your condo within 3 years from your purchase date. The chargeable SSD rates are: Holding Period SSD Rates* Up to 1 year 12% More than 1 year and up to 2 years 8% More than 2 years and up to 3 years 4% More than 3 years No SSD payable * SSD rates applicable for condo purchased on and after 11 Mar 2017