Features: - Calculate Residential Stamp Duty - Calculate Non-Residential Stamp Duty - Calculate Company Shares - Verify Stamp Duty Certificate - Check Outstanding Amount Buyer's Stamp Duty (BSD) is tax paid on documents signed when you buy or acquire property located in Singapore. Liable buyers are required to pay ABSD on top of the existing Buyer’s Stamp Duty (BSD). ABSD and BSD are computed on the purchase price as stated in the dutiable document or the market value of the property (whichever is the higher amount).