Answer
When Is Stamp Duty Due in Singapore?
The 14-day deadline after signing — and what happens if you miss it.
Answer: Stamp duty (BSD + ABSD) must be paid within 14 days after signing the Sale & Purchase Agreement (for private property) or 14 days after exercising the Option to Purchase (for HDB resale). Late payment incurs a 4% p.a. penalty, pro-rated by days overdue. Payment is done via IRAS e-Stamping portal. Most lawyers handle this during conveyancing, but you are ultimately responsible for ensuring it's paid on time.
The 14-Day Timeline
| Property Type | 14-Day Deadline Starts From |
|---|---|
| Private condo / landed | Date of Sale & Purchase Agreement (S&P) |
| HDB resale | Date Option to Purchase (OTP) is exercised |
| New launch condo | Date of Sale & Purchase Agreement |
| EC (Executive Condo) | Date of Sale & Purchase Agreement |
The 14-day count is calendar days, not business days. If the deadline falls on a weekend or public holiday, it is NOT extended to the next working day.
What Stamp Duty Do You Need to Pay?
Buyer's Stamp Duty (BSD): Progressive tax on purchase price (1%–6% depending on brackets). Everyone pays this.
Additional Buyer's Stamp Duty (ABSD): Flat rate on purchase price. Only applies if you're buying a 2nd/3rd property (SC), or you're a PR/foreigner buying any property.
| Example | BSD | ABSD | Total Due (14 days) |
|---|---|---|---|
| SC, 1st property, $1M | $24,600 | — | $24,600 |
| SC, 2nd property, $1.5M | $44,600 | $300,000 | $344,600 |
| PR, 1st property, $1M | $24,600 | $50,000 | $74,600 |
| Foreigner, 1st property, $2M | $69,600 | $1,200,000 | $1,269,600 |
Rates: BSD 1%–6% progressive. ABSD: SC 0%/20%/30%, PR 5%/30%/35%, Foreigner 60% (effective 27 Apr 2023).
Late Payment Penalty
If you miss the 14-day deadline, IRAS imposes a 4% per annum penalty on the stamp duty amount, pro-rated by the number of days late.
| Stamp Duty Amount | Days Late | Penalty (4% p.a.) |
|---|---|---|
| $50,000 | 7 days | ~$38 |
| $50,000 | 30 days | ~$164 |
| $300,000 | 14 days | ~$460 |
| $300,000 | 60 days | ~$1,973 |
Calculation: Penalty = (Stamp Duty × 4% p.a.) × (Days Late ÷ 365). IRAS may also impose additional penalties for persistent non-payment.
How to Pay Stamp Duty
- Go to IRAS e-Stamping portal: www.iras.gov.sg
- Log in with Singpass
- Upload the Sale & Purchase Agreement (or OTP for HDB)
- System calculates BSD + ABSD automatically
- Pay via internet banking, credit card, or GIRO
- Download stamped document (proof of payment)
Most buyers don't do this themselves — your conveyancing lawyer typically handles stamp duty payment as part of their service. But you are still responsible for ensuring it's paid within 14 days.
Calculate your stamp duty
See the exact BSD + ABSD for any buyer profile and property price — so you know what's due in 14 days.
Stamp Duty CalculatorFAQ
When is stamp duty due in Singapore?
Stamp duty (both BSD and ABSD) must be paid within 14 days after signing the Sale & Purchase Agreement (for private properties) or exercising the Option to Purchase (for HDB resale). The 14-day clock starts from the date of the document, not when you receive the keys.
What happens if I miss the 14-day deadline?
Late payment incurs a penalty of 4% per annum on the stamp duty amount owed. IRAS may also impose additional penalties and legal action for persistent non-payment. The penalty is pro-rated by the number of days overdue.
How do I pay stamp duty?
Pay via IRAS e-Stamping portal (https://www.iras.gov.sg). You can pay using internet banking, credit card, or GIRO. Most lawyers handle this as part of conveyancing, but you can also self-submit if you have all the documents.
Can I get an extension on the 14-day deadline?
No. The 14-day deadline is statutory and cannot be extended. If you are unable to pay on time due to exceptional circumstances (e.g. medical emergency), you can write to IRAS to request penalty waiver, but the stamp duty itself must still be paid.
Do I pay stamp duty when I sign the OTP or when I exercise it?
The 14-day deadline starts when you exercise the Option to Purchase (OTP), not when you sign it. Signing the OTP is just an offer; exercising it (paying the option fee + option exercise fee) is when the binding contract begins.
Related
- Stamp Duty Calculator — BSD + ABSD for any price
- ABSD Singapore Guide — full breakdown of rates and exemptions
- Stamp Duty on $1M Condo
- Option to Purchase (OTP) Singapore
- Sell HDB Buy Condo Timeline
Last updated Feb 2026. Stamp duty rates effective 15 Feb 2023 (BSD), 27 Apr 2023 (ABSD). This is general information, not legal or tax advice. Check IRAS website or consult a lawyer for your specific situation.