Seller's Stamp Duty (SSD) rates vary by purchase date. For purchases between 11 March 2017 and 3 July 2025: 12% (within 1 year), 8% (1-2 years), 4% (2-3 years), no SSD after 3 years. For purchases on or after 4 July 2025: 16% (within 1 year), 12% (1-2 years), 8% (2-3 years), 4% (3-4 years), no SSD after 4 years.