Additional Buyer's Stamp Duty (ABSD) is Singapore's primary demand-side cooling measure for the residential property market. For Singapore Citizens upgrading from an HDB flat to a private property, understanding exactly how ABSD applies — and how the remission mechanism works — is critical to planning the upgrade correctly.
Current ABSD Rates For Singapore Citizens
Singapore Citizens pay no ABSD on their first residential property. On the second residential property, the rate is 20%. On the third and subsequent properties, it rises to 30%. These rates apply to the purchase price or market value, whichever is higher, and must be paid within 14 days of signing the Option to Purchase or Sales and Purchase Agreement.
On a $1.8 million second property, the ABSD due would be $360,000 — a very material sum that cannot be paid with CPF and must be in cash (or drawn from the conveyancing account).
The Remission For Married Couples
Singapore Citizens who buy a second residential property while still owning an HDB flat — with the intention of selling the HDB — can apply for ABSD remission, provided the HDB flat is disposed of within 6 months of the private property purchase (or within 6 months of the private property's Temporary Occupation Permit for new launches). If the HDB is sold within this window, the ABSD paid upfront is refunded in full.
This is what makes the "buy first, sell after" sequence possible — but it requires fronting the full ABSD in cash at purchase, which is why strong cash reserves are a prerequisite if this path is chosen.
Planning Implications
For most upgraders, the cleaner path is to sell the HDB first, eliminating ABSD liability entirely — since you are buying your next property as a first property (once the HDB sale is completed). The downside is the interim housing arrangement; the upside is not having to fund $300,000+ in ABSD while waiting for the HDB to sell. Whether the added flexibility of buying first justifies the ABSD bridge cost is a decision that depends on your cash reserves and specific circumstances.