Condo Sub-Sale in Singapore — Buying Before TOP
What happens when you buy from a flipper instead of the developer — and why it matters for your wallet.
Answer: A condo sub-sale is buying a unit from a previous buyer before the project reaches TOP. You take over their remaining progressive payments and become the new owner. Sub-sales often carry a premium over launch price in hot markets. The seller may face SSD (4–12%) if selling within 3 years. You pay BSD + ABSD (if applicable) on your purchase price. Your SSD clock resets from your purchase date. Key risk: you inherit construction risk and have no direct relationship with the developer.
How a Sub-Sale Works
Original buyer purchases from developer
Pays booking fee (5%) and signs S&P. Begins progressive payments as construction progresses.
Original buyer decides to sell before TOP
Lists the unit for sub-sale. Sets a price (usually above original purchase price). May face SSD if within holding period.
You (sub-sale buyer) purchase from the original buyer
Sign an assignment or new S&P. Pay the agreed sub-sale price. Take over remaining progressive payments to the developer.
Developer acknowledges the transfer
The developer must consent to the sub-sale. You become the new purchaser in the developer's records. Future progressive payment notices come to you.
Sub-Sale vs Developer vs Resale: Cost Comparison
Example: 3-bedroom condo, 1,100 sqft, OCR location
| Item | Developer (New Launch) | Sub-Sale | Resale (After TOP) |
|---|---|---|---|
| Price | $1,500,000 | $1,620,000 | $1,550,000 |
| BSD | $44,600 | $50,400 | $46,000 |
| Payment mode | Progressive | Take over progressive | Full on completion |
| Wait for keys | 3–4 years | 1–2 years (partially built) | Immediate |
| Unit condition | Brand new at TOP | Brand new at TOP | Used (inspect first) |
| Developer relationship | Direct | Transferred | None (DLP may be expired) |
SSD Implications for Sub-Sales
SSD is the seller's problem — but it affects the price you pay. Sellers facing SSD often price higher to cover the tax.
| Holding Period (Seller) | SSD Rate | SSD on $1,600,000 |
|---|---|---|
| < 1 year | 12% | $192,000 |
| 1–2 years | 8% | $128,000 |
| 2–3 years | 4% | $64,000 |
| ≥ 3 years | 0% | $0 |
From 2026, SSD holding period extends to 4 years (16%/12%/8%/4%). Check the applicable rules based on when the seller originally purchased. Your own SSD clock starts fresh from your sub-sale purchase date.
Pros and Cons of Sub-Sale
Advantages
- ✓Shorter wait than buying from developer (construction partially done)
- ✓Brand-new unit at TOP — same condition as developer purchase
- ✓May find motivated sellers (relocating, cash flow issues)
- ✓Progressive payment scheme — don't pay full price upfront
- ✓Access to sold-out projects with good units still available
Disadvantages
- ✗Usually priced above original launch price (seller wants profit)
- ✗No developer discounts, early bird pricing, or furniture packages
- ✗Construction delays — you inherit this risk
- ✗More complex legal process (assignment of S&P)
- ✗Your SSD clock resets — you're locked for 3–4 years from purchase
What to Check Before Buying a Sub-Sale
Considering a sub-sale purchase?
Calculate your stamp duty, affordability, and monthly payments before committing.
Stamp Duty CalculatorFAQ
What is a condo sub-sale?
A sub-sale is when you buy a condo unit from someone who purchased it from the developer but has not yet received keys (before TOP). The seller is flipping the unit before completion. You take over the remaining progressive payments and become the new owner. Sub-sales are common in hot markets when buyers want to lock in early gains.
Do I pay SSD on a sub-sale?
The seller pays SSD, not the buyer. If the seller is disposing of the property within 3 years (4 years from 2026 under the new SSD rules), they pay 12%/8%/4% SSD. As the buyer, you do not pay SSD on purchase. However, your own SSD clock starts from YOUR purchase date, not the original purchase date.
Is a sub-sale cheaper than buying from the developer?
Not always. In a rising market, sub-sale prices are typically higher than the original launch price because the seller wants a profit. In a falling market, you may find sub-sale units below the original price as sellers cut losses. Compare sub-sale prices against the developer price list and recent resale transactions in the area.
Can I use CPF for a sub-sale condo?
Yes, you can use CPF OA for a sub-sale purchase. However, the property must have at least 20 years of remaining lease when you turn 55 for CPF usage up to the Valuation Limit. Since sub-sale condos are new (pre-TOP), lease remaining is typically not an issue. CPF usage rules are the same as any private property purchase.
What are the risks of buying a sub-sale condo?
Key risks include: (1) construction delays — the developer may push back TOP, (2) you inherit the seller’s payment obligations (remaining progressive payments), (3) the unit may look different from the showflat by the time of TOP, (4) limited negotiation power versus buying direct from developer, (5) you may pay a premium over the original launch price.
Related
Last updated Feb 2026. SSD rates per IRAS. Sub-sale process governed by the Sale of Commercial Properties Act and Housing Developers (Control and Licensing) Act. This is informational, not legal or financial advice.