ABSD & BSD Explained: Property Stamp Duties in Singapore (2026)

Stamp duty is the tax that quietly reshapes a property budget in Singapore, and it comes in two forms that people constantly mix up: Buyer’s Stamp Duty and Additional Buyer’s Stamp Duty. One applies to everyone; the other only to certain buyers, but when it does apply it can be enormous. Understanding both before you shop keeps you from a nasty surprise at completion.

What Buyer’s Stamp Duty (BSD) is

Buyer’s Stamp Duty (BSD) is paid on every purchase of property in Singapore — HDB flat, condo or landed. It’s a tiered duty, meaning different slices of the purchase amount are taxed at rising rates: lower rates on the first portions of value and higher rates on the top portions. Residential and non-residential properties have their own rate schedules. Because it’s tiered, a more expensive property doesn’t just pay more in dollars, it pays a higher effective rate.

BSD is charged on the higher of the purchase price or the market value of the property. This matters: if you pay above valuation, your stamp duty is still based on the higher figure, and paying under valuation doesn’t lower it below market value.

What Additional Buyer’s Stamp Duty (ABSD) is

Additional Buyer’s Stamp Duty (ABSD) is an extra duty layered on top of BSD, introduced as a cooling measure to moderate demand. It targets specific buyers rather than every transaction:

• Singapore Citizens — generally 0% on the first residential property, with rising rates on the second and subsequent ones.
• Permanent Residents — ABSD from the first residential property, at a higher rate for later ones.
• Foreigners — a high flat ABSD rate on any residential property, subject to any applicable treaty exemptions.
• Entities (companies, trusts) — the highest ABSD rates.

The exact percentages are set by policy and have been adjusted several times. Rather than quote figures that may be out of date, treat the structure above as the shape of it and verify the current rates on the IRAS website before you commit.

Why the “how many properties” count matters

ABSD hinges on your property count at the time of purchase. A citizen’s first home is usually ABSD-free; the moment it’s a second residential property, ABSD applies to the full purchase amount, not just the excess. That’s why buyers upgrading from an HDB flat to a condo often plan to sell first, so the new purchase counts as their only property. Others buy first and accept the ABSD, sometimes applying for a remission if they sell the first property within the allowed window and meet the conditions.

This is central to any HDB-to-private upgrade decision. Our comparison of condo vs HDB discusses how ABSD shapes the sequence of buying and selling.

How the tiers work in practice

Because BSD is tiered, you calculate it slice by slice: apply the first-tier rate to the first band of value, the next rate to the next band, and so on, then sum the parts. ABSD, by contrast, is typically a single percentage applied to the whole purchase amount based on your profile and property count. Add the two together and you have your total stamp duty. For a citizen buying a first home, that total is just the BSD. For a second property, the ABSD often dwarfs the BSD.

IRAS provides an online stamp duty calculator, which is the reliable way to get an exact figure for your specific price and profile — always preferable to estimating by hand.

A few details trip people up here. The valuation basis means that in a hot market, where units transact above their formal valuation, you could pay BSD on a figure higher than the bank’s valuation, so factor that into your cash planning. Married couples also need to understand how joint ownership affects the count: if either party already owns a residential property, the purchase can be treated as a second property for ABSD purposes even if the other partner owns nothing. And for mixed-nationality couples, there are specific rules that can, in some cases, allow the citizen spouse’s status to apply. These situations are exactly the kind you should confirm against current IRAS guidance rather than assume.

When and how you pay

Stamp duty is due within a set period after the relevant document is signed (such as the acceptance of an Option to Purchase or the signing of the sale agreement). Late payment attracts penalties, so it’s a hard deadline, not a soft one. In many cases CPF can be used towards stamp duty, but timing rules may require you to pay first and reimburse from CPF, or to pay some portion in cash. Confirm the mechanics with CPF and IRAS for your loan and property type.

Budgeting for stamp duty

Stamp duty should sit in your budget from the start, alongside the downpayment, legal fees and renovation. For a first-home citizen buyer, the BSD is a manageable line item. For anyone facing ABSD, it can be one of the largest single costs of the whole purchase — enough to change which property you can afford. If you’re a first-time buyer mapping out total costs, our first-time HDB buyer’s guide puts stamp duty in context with grants and financing.

Don’t forget Seller’s Stamp Duty

While ABSD and BSD hit buyers, sellers should note Seller’s Stamp Duty (SSD), which can apply if you sell a residential property within a holding period after buying it. It’s a separate duty aimed at discouraging quick flips. If your plan involves selling soon after buying — for instance to re-sequence an upgrade — check whether SSD would apply, because it changes the maths on timing.

Worked example of the two-duty stack

Picture two buyers eyeing the same property. Buyer A is a Singapore Citizen for whom this is a first home; Buyer B is a citizen who already owns one flat and is buying a second. Both pay the identical BSD, calculated tier by tier on the higher of price or value. But only Buyer B also pays ABSD — a single percentage applied to the whole purchase amount — on top. In many second-property cases the ABSD portion is larger than the BSD portion, which is exactly why upgraders think so hard about whether to sell first. The lesson is that two people can buy the same home for very different total costs depending purely on their property count and residency status.

Planning around stamp duty

Because ABSD can swing your budget by a large amount, plan the sequence of any purchase deliberately. Upgraders often sell their existing home first so the new one counts as their only property, avoiding ABSD entirely. Others buy first for a smoother move and rely on an ABSD remission if they sell the first property within the allowed window and meet all the conditions — a route that carries risk if the sale is slow. There’s no single right answer; it depends on your finances, the market and your appetite for holding two properties briefly. This is one area where professional advice frequently pays for itself, and where our comparison of condo vs HDB is worth reading alongside.

The bottom line

BSD applies to every buyer and is tiered on the higher of price or value; ABSD is an extra layer that depends on your residency status and how many residential properties you already own. For most first-time citizen buyers it’s just BSD; for upgraders and investors, ABSD can dominate the budget and dictate the buy-sell sequence. Rates change often, so model your exact figure on the IRAS calculator and verify the current tiers before you commit. For the surrounding decisions, explore the Sheryna property guides.

Want a licensed agent to help you plan a purchase around ABSD and the right buying sequence? Get matched with one through the form below.