Disclaimer (Block 1): This article is for educational purposes only and is intended to assist CEA-registered property agents in understanding regulatory frameworks. It does not constitute financial, tax, or legal advice. LEVR's calculations are indicative only. Always verify rates and eligibility with your bank, HDB, CPF Board, or a licensed financial advisor before advising clients.
What Is an Option to Purchase?
An Option to Purchase (OTP) is a legal document granted by the seller to the buyer that gives the buyer the exclusive right — but not the obligation — to purchase the property at an agreed price within a specified option period. In exchange, the buyer pays an option fee to the seller upon receiving the OTP.
If the buyer chooses to exercise the option, they pay an additional exercise fee (together with the option fee, this forms the initial deposit). If the buyer does not exercise the option within the option period, the option lapses and the option fee is forfeited to the seller.
HDB resale and private property transactions use different OTP formats and are governed by different rules.
HDB Resale OTP
For HDB resale transactions, HDB prescribes a standard HDB OTP form that must be used. Sellers and buyers cannot deviate from this prescribed format. The key parameters:
Option Fee
The option fee for an HDB resale flat is capped at $1,000. Sellers may not request a higher option fee. This amount is paid by the buyer to the seller when the OTP is granted.
Option Period
The HDB OTP option period is 21 calendar days from the date the OTP is granted. The buyer has 21 days to decide whether to exercise the option by signing the acceptance copy and paying the exercise fee.
Exercise Fee
The exercise fee (paid on exercise of the HDB OTP) together with the option fee must not exceed $5,000 for 4-room and smaller flats and $10,000 for 5-room and executive flats. Both the option fee and exercise fee form part of the purchase price and are credited toward the final purchase price at completion.
HDB Resale Process After OTP Exercise
After the buyer exercises the HDB OTP, both parties must submit the resale application to HDB within 7 days of OTP exercise. The resale application is submitted via the HDB Resale Portal:
- The seller submits the seller’s portion of the resale application first (or simultaneously with the buyer)
- The buyer submits the buyer’s portion, including uploading the HDB Flat Eligibility (HFE) letter, confirming the financing arrangement (HDB loan or bank loan), and declaring CPF usage
- HDB reviews the application and issues an approval letter (typically within 2–3 working days of a complete application)
- After HDB approval, the resale completion is scheduled — typically 8 to 10 weeks after the resale application is submitted
Agent note: The 7-day window to submit the HDB resale application after OTP exercise is strict. Agents should prepare the buyer’s HFE letter, financing confirmation, and CPF declarations in advance so they are ready to submit immediately after exercise.
Private Property OTP
For private residential property (condominiums, landed property, and non-HDB strata properties), there is no HDB-prescribed OTP format. The OTP is a negotiated document, though the Singapore Law Society has developed standard forms that many law firms and agents use as a baseline. Key parameters:
Option Fee
There is no legislated cap on the option fee for private property. Market convention for private residential property is typically 1% of the purchase price, though this is negotiable. Sellers may request a higher option fee for in-demand properties; buyers may negotiate a lower fee for less competitive situations.
Option Period
The option period for private property OTPs is negotiable between parties. Common option periods are 14 days (standard) and 21 days (where the buyer needs additional time for financing). Option periods shorter than 14 days are unusual and may disadvantage the buyer.
Exercise Fee and Total Deposit
The exercise fee for private property is typically 4–9% of the purchase price (such that option fee + exercise fee = 5–10% total deposit). The total deposit is held by the seller’s solicitor as stakeholder until completion.
Completion Timeline
For private resale properties, completion typically occurs 8–12 weeks after OTP exercise, with the exact date specified in the Sale and Purchase Agreement (S&P). The S&P is entered into on exercise of the OTP (or shortly after) and governs the full transaction.
Consequences of OTP Lapse
If the buyer does not exercise the OTP within the option period:
- The option lapses automatically — no further action is required by either party
- The option fee paid by the buyer is forfeited to the seller — the seller is entitled to retain it as compensation for taking the property off the market during the option period
- For HDB resale, both parties must wait 1 calendar day after the OTP lapses before granting or receiving a new OTP for the same flat
- For private property, there is no mandatory cooling-off period after an OTP lapses, though the seller is free to market the property immediately
Key Agent Obligations at the OTP Stage
The OTP stage is a critical point in any transaction. CEA agents must:
- Ensure the buyer has financing in place before exercising the OTP. A buyer who exercises an OTP without a confirmed AIP (Approval in Principle) or HDB HFE letter is at risk of forfeiting the deposit if financing falls through.
- Confirm stamp duty liability before exercise. Buyers should know the exact BSD and ABSD payable before committing — stamp duty is due within 14 days of exercise for private property and is calculated on the purchase price or market value (whichever is higher).
- Advise on caveat lodgment for private property buyers. After exercising the OTP, the buyer’s solicitor should lodge a caveat on the land title to protect the buyer’s interest and prevent the seller from granting another OTP on the same property.
- Not pressure buyers to exercise prematurely. Agents must not create artificial urgency to cause a buyer to exercise an OTP before they are ready. Doing so may be a breach of the Code of Ethics and Professional Client Care.
Disclaimer (Block 3): LEVR's calculator outputs are estimates based on inputs provided and current regulatory parameters as known at time of publication. They are not a guarantee of borrowing capacity, stamp duty liability, or CPF eligibility. Regulatory thresholds and rates may change. Always verify with IRAS, your bank, or a licensed financial advisor before making financial decisions.