ABSD is triggered the moment you sign the dutiable instrument — the Sale and Purchase Agreement or the exercised Option to Purchase — and must be paid to IRAS within 14 days (Singapore-signed) or 30 days (overseas-signed) of that date, not at completion or TOP (as of 2026-06).
Most Singapore property buyers are surprised to learn that Additional Buyer's Stamp Duty is not a bill that arrives at the end of a long purchase process — it lands at the very beginning, the moment you commit. The 14-day clock starts ticking when you exercise the OTP or sign the Sale and Purchase Agreement, regardless of whether your bank loan has been disbursed, your HDB flat has been sold, or your new launch is still three years from receiving its Temporary Occupation Permit. Understanding exactly what triggers ABSD, how the count of residential properties you hold is assessed on that trigger date, and what payment window you have can save you from penalties that run to four times the original duty owed.
What is ABSD and who triggers it?
Additional Buyer's Stamp Duty is a levy imposed on top of Buyer's Stamp Duty (BSD) when certain buyers purchase residential property in Singapore. It was first introduced in December 2011 and has been revised multiple times since, with the most recent rate increases taking effect on 27 April 2023. As of 2026-06, the rates are set by the Inland Revenue Authority of Singapore (IRAS) and apply whenever a buyer falls into a taxable profile and property-count combination.
Four broad categories trigger ABSD liability. First, a Singapore Permanent Resident buying any residential property — even their very first — pays ABSD at 5% on the first property, 30% on the second, and 35% on the third and subsequent. Second, a Singapore Citizen buying a second residential property pays 20%, and a third or subsequent property attracts 30%. Third, any foreigner (other than nationals of the USA, Switzerland, Iceland, Liechtenstein, or Norway who qualify for relief under specific Free Trade Agreements) pays 60% on every Singapore residential property purchase. Fourth, any entity — including a company, limited liability partnership, or trust — pays 65% on every residential purchase. The higher-of-purchase-price-or-market-value basis applies in every case: IRAS will use the value independently assessed if it is above the contract price.
How is the count of residential properties determined?
At the moment the dutiable instrument is signed, IRAS counts every Singapore residential property the buyer legally holds, including properties where the buyer holds a partial interest (e.g. as a joint tenant or tenant-in-common). Critically, any property that has been sold but whose sale has not yet been legally completed is still counted as a property held on the trigger date. This is the source of the most common ABSD miscalculation: a buyer signs an OTP to purchase a second property on Monday, planning to complete the sale of their first property on Friday — because both transactions are legally open on Monday, ABSD is assessed as though they hold two properties, not one, on that date. The only relief available for this timing gap is the married-couple remission scheme described below.
ABSD must be paid within 14 days from the date of signing the Sale and Purchase Agreement if signed in Singapore, or within 30 days if signed overseas. Late payment incurs penalties of 5% per annum on the unpaid amount, plus a fine of up to 4 times the duty unpaid.
When ABSD is payable
The trigger event for ABSD is the date of the Sale and Purchase Agreement (typically the OTP exercise date for resale, or the booking date for new launches). Source: IRAS ABSD.
Payment is due within 14 days of the trigger event for documents signed in Singapore, or 30 days for documents signed overseas.
How to pay ABSD
Stamp duty (BSD + ABSD) is paid through myTax Portal via:
- e-Stamping Service: Direct online filing and payment using SingPass.
- GIRO: Pre-arranged from a Singapore bank account.
- NETS / Credit Card: Up to specified limits at IRAS payment counters.
- Cheque: Posted to IRAS; processing time longer.
Most conveyancing lawyers handle stamp duty filing on behalf of buyers as part of the property completion service.
Penalties for late payment
| Delay | Penalty |
|---|---|
| ≤ 3 months | $10 or 4× duty unpaid, whichever higher |
| > 3 months | $25 or 4× duty unpaid, whichever higher |
| Additional | 5% per annum on the unpaid duty |
For a S$300,000 ABSD that is late by 1 month, the penalty is S$1,200,000 (4× duty) or larger — making late payment a catastrophic financial error.
Worked example: Payment timeline for a resale purchase
| Date | Event | ABSD action |
|---|---|---|
| 1 Jun 2026 | OTP signed (1% cash) | None |
| 15 Jun 2026 | OTP exercised (4% top-up) | Triggers 14-day countdown |
| 29 Jun 2026 | ABSD payment deadline | Filed via myTax Portal |
| 1 Aug 2026 | Completion | — |
For the broader Singapore ABSD framework see the complete ABSD guide.
Frequently asked questions
Can ABSD payment be delayed pending loan approval?
No. ABSD is payable on the trigger date regardless of loan disbursement timing.
What if the lawyer makes a late filing?
The buyer is ultimately responsible for stamp duty payment. Late-filing penalties may be recoverable from the lawyer if negligence is proven.
Can I pay in instalments?
No. Stamp duty is payable in full by the deadline. There is no instalment plan.
The 14-day clock and the dutiable instrument
Under Singapore's Stamp Duties Act, stamp duty (BSD plus ABSD, if applicable) must be paid within 14 calendar days of the date of execution of the instrument if the instrument is signed in Singapore, or within 30 calendar days if signed outside Singapore. The dutiable instrument is whichever document first creates the legal obligation to transfer the property — in practice this is usually the exercised Option to Purchase (OTP) for resale transactions, or the Sales and Purchase Agreement signed at booking for new launch purchases. IRAS confirms that BSD and ABSD are assessed on the instrument that triggers the obligation, not on the completion date.
For a typical resale transaction, the timeline works as follows. The seller grants an OTP, the buyer pays the option fee (usually 1% of the agreed price). The buyer then has an option period — typically 14 to 21 days — to decide whether to exercise the OTP by paying a further sum (usually 4–9% of the agreed price). The moment the buyer exercises the OTP, that is the trigger date. The buyer's conveyancing lawyer must file the stamp duty via the IRAS e-Stamping portal (myTax Portal) and arrange payment within 14 days of that exercise date. Payment is due before completion, which typically falls 8 to 12 weeks after exercise. There is no mechanism to defer ABSD to completion.
For a new launch (direct developer sale), the sequence is different but the legal clock is the same. The buyer pays a booking fee of 5% on the day of booking and simultaneously signs the Option to Purchase granted by the developer. The buyer then exercises the OTP — by signing the Sale and Purchase Agreement provided by the developer — within 21 days of the option date, and pays a further 15% of the purchase price at exercise. That exercise date starts the 14-day ABSD countdown, even if the development is years from receiving its Temporary Occupation Permit (TOP). A buyer purchasing a $2 million new launch in 2026 with a second residential property on hand will owe ABSD of $400,000 (20%) due within 14 days of exercise, long before the unit is built. Use the stamp duty calculator and the total cost of ownership calculator to model the full upfront cash requirement.
Remission windows and refund timelines
Two formal remission schemes exist that allow ABSD to be paid first and then reclaimed, subject to conditions being met within defined windows. The first is the married-couple remission: Singapore Citizen spouses who jointly purchase their first residential property while one spouse still legally owns another property may pay the ABSD upfront and then claim a full remission provided the existing property is sold and the sale completed within 6 months of the purchase of the new residential property (or 6 months from the TOP date if the new property is an uncompleted unit). IRAS will refund the ABSD if the condition is satisfied, but the ABSD must still be stamped and paid within the original 14-day window — there is no pre-approval that suspends the payment obligation. IRAS remission details for married couples set out the application form and evidence requirements.
The second is the trust remission: where a residential property is transferred into a trust, ABSD of 65% applies at the point of transfer. A conditional remission is available for qualifying living trusts where all identifiable beneficial owners are Singapore Citizens, subject to strict conditions and an application within 6 months. Any change in beneficial ownership within 5 years triggers a clawback. Both schemes require formal applications to IRAS — they are not automatic. For remission applications the Monetary Authority of Singapore's overview of property market measures situates ABSD within the broader cooling-measure framework.
Penalties for late or under-payment
Missing the 14-day window carries penalties that scale steeply. For documents executed in Singapore, a penalty of $10 or four times the unpaid stamp duty (whichever is higher) applies if payment is late, plus interest at 5% per annum on the outstanding amount. For a $500,000 ABSD liability, a single day of delay exposes the buyer to a penalty of $2,000,000. There is no graduated grace period. Conveyancing lawyers routinely calendar the deadline and file within 7 days to leave a safety margin. Under-payment — for instance, stamping on the contract price when the IRAS-assessed market value is higher — is treated as a separate offence and the shortfall, plus penalties, becomes payable on demand.
Step by step
- Identify your ABSD profile before making any offer. Count every Singapore residential property you legally hold, including partial interests and properties under an open sale that has not yet completed. Use the IRAS ABSD rate table to confirm your applicable rate based on your citizenship status and property count.
- Model the full upfront cash requirement before exercising the OTP. ABSD is payable within 14 days of exercise — not at completion. Use the stamp duty calculator to compute your BSD plus ABSD on the purchase price, then cross-check the total cost of ownership calculator to confirm you have sufficient liquid funds available before you commit.
- Brief your conveyancing lawyer before the option exercise date. Confirm the exact exercise date in writing so both you and your lawyer share the same 14-day deadline. Ensure your lawyer has the stamping authority and sufficient funds in their client account or your CPF/cash accounts to meet payment on Day 1 of exercise — not Day 14.
- If you are a married SC couple selling an existing property, apply for the married-couple remission immediately after exercise. The remission application must be filed at the same time as the stamp duty payment — not after. You must supply proof of marriage and the property details of the property being disposed of. The 6-month disposal window runs from the date of purchase completion (or TOP date for uncompleted units), so begin the sale of the existing property without delay. See IRAS married-couple remission guidelines for the required forms.
- For new launches, note that the OTP exercise date (not the booking date) starts the clock. The developer will provide the date by which you must sign and return the Sale and Purchase Agreement. Ensure your funds — CPF Ordinary Account drawdown, bank loan amount, and cash — are confirmed and available before you exercise, since ABSD falls due within 14 days of that exercise date regardless of the projected completion timeline.
- Verify the IRAS-assessed value if your purchase price is below recent comparable transactions. IRAS may assess market value independently, and ABSD is payable on the higher of price or assessed value. For properties in districts where market values have risen sharply, request a preliminary IRAS valuation check via your lawyer before signing the instrument.
- If you are a foreigner or entity buyer, factor the 60%/65% ABSD into your financing from the outset. The MAS property-market measures overview explains how ABSD fits within the broader regulatory framework. Note that US, Swiss, Norwegian, Icelandic, and Liechtenstein nationals may qualify for FTA-based relief — verify eligibility with a qualified Singapore tax lawyer before proceeding.
- Calendar a hard reminder for Day 10 after exercise. Allow four days' buffer for any last-minute bank transfer delays. If your lawyer misses the deadline, you as the buyer bear primary liability for the penalty — keep your own deadline record independent of the law firm's system.
Frequently asked questions
Does ABSD apply to the Option to Purchase fee, or only when I exercise the OTP?
ABSD (and BSD) are assessed and payable on the dutiable instrument — the document that legally creates the obligation to transfer the property. Paying the option fee to receive an OTP does not trigger ABSD; it is only when you exercise the OTP (or sign the Sale and Purchase Agreement) that the duty is assessed and the 14-day payment clock begins. If you decide not to exercise the OTP and let it lapse, no stamp duty is due at all.
I am selling my existing property but the sale has not completed yet — does ABSD count it as a property I still own?
Yes. As of 2026-06, IRAS counts a property as being in your ownership on the trigger date of a new purchase if the sale of the existing property has not legally completed — meaning the transfer documents have not been lodged and accepted by the Singapore Land Authority. A property under an open resale transaction (OTP exercised but completion pending) is still treated as held by you. This is why the married-couple remission scheme exists: eligible SC spouses can pay the ABSD upfront and claim a refund once the existing property is disposed of within 6 months. Consult the IRAS ABSD guidance to confirm current counting rules before relying on any planned timing.
Can I pay ABSD using CPF funds?
CPF Ordinary Account funds can be used to pay stamp duty — including ABSD — for the purchase of a private residential property, subject to the property's eligible usage and remaining lease requirements. However, your CPF OA withdrawal must be arranged in advance through your conveyancing lawyer and coordinated with the CPF Board, since the funds need to be transferred to the law firm's client account in time to meet the 14-day deadline. For HDB flats, specific CPF usage rules apply and may differ; refer to the HDB CPF usage guidelines and your Central Provident Fund portal for updated limits (as of 2026-06).
What happens if my lawyer files and pays stamp duty late?
The stamp duty liability — and the associated penalties — fall on the buyer as the party to the transaction, not on the conveyancing law firm. Your lawyer's obligation to file on time is a professional duty, and if negligence causes the late filing you may have a civil claim against the firm for any penalties incurred. However, IRAS will pursue the penalty from you directly: the penalty of up to four times the unpaid duty remains payable regardless of the cause of the delay. This is why many buyers set an independent deadline reminder at Day 10 (four days before the statutory deadline). If you discover a pending stamp duty has not been filed, contact IRAS and your lawyer immediately — voluntary disclosure and early payment reduce, but do not eliminate, the exposure.
For a new launch I am buying off-plan, when exactly does the 14-day window start?
For a new launch direct developer sale in Singapore, the buyer typically pays a booking fee on the date of booking and receives an Option to Purchase from the developer. The buyer then has 21 days to exercise that option by signing the Sale and Purchase Agreement. The 14-day ABSD and BSD payment deadline runs from the date you sign the Sale and Purchase Agreement (the exercise date), not from the booking date. Your law firm will receive the SPA from the developer's lawyers and coordinate the stamp duty filing. The critical point is that ABSD is due at exercise — which may be two, three, or even four years before the project reaches TOP — so the full duty amount must be available in cash or CPF at that time regardless of how far away physical completion is.