Property Downpayment in Singapore: 5 Mistakes to Avoid
Splits the downpayment into cash and CPF and shows the remaining loan. The maths is not complicated, but a handful of errors come up again and again in this and related property & hdb calculations. Here is what to watch for.
Singapore's property market is shaped by cooling measures introduced since 2009, including Additional Buyer's Stamp Duty, loan-to-value limits and debt servicing ratios. These rules are adjusted when the market runs hot, so the numbers you see today may differ from what friends paid a few years ago.
Most Singaporeans live in HDB flats, which can be financed with an HDB concessionary loan at 0.1% above the CPF Ordinary Account rate or with a bank loan. Private property must be financed with a bank loan, and banks offer fixed, floating and SORA-pegged packages.
1. Overlooking other costs
Legal fees, valuation, fire insurance, renovation and agent fees all add to the total outlay.
2. Assuming the bank will lend 75%
LTV falls to 45% for a second loan and is reduced further for long tenures or older borrowers.
3. Ignoring SSD when selling early
Selling within four years of buying (for purchases from 4 July 2025) attracts Seller's Stamp Duty.
4. Using the advertised interest rate for affordability
Banks apply a stress-test rate to TDSR and MSR calculations.
5. Using the price instead of the higher valuation
Stamp duty is charged on the higher of price or market value.
The correct method
Loan = price × (1 − cash % − CPF %).
For example, with these inputs:
- Property price (S$): 900,000
- Cash downpayment (%): 5
- CPF downpayment (%): 20
the calculator returns:
- Cash portion: S$45,000.00
- CPF portion: S$180,000.00
- Loan amount: S$675,000.00
Related calculations
- Additional Buyer's Stamp Duty (ABSD) Calculator: Calculates ABSD by buyer profile and the number of residential properties owned, using the rates in force since 27 April 2023.
- Total Property Stamp Duty Calculator: Adds BSD and ABSD together so you know the full stamp duty bill before you sign an option to purchase.
- Seller's Stamp Duty (SSD) Calculator: Calculates SSD for residential property bought on or after 4 July 2025 and sold within four years.
- HDB Loan Calculator: Calculates monthly repayments on an HDB concessionary loan, which is pegged at 0.1% above the CPF Ordinary Account rate (2.6% a year).
The Property Downpayment Calculator applies the formula consistently, so it is a quick way to double-check your own working.
Run your own numbers: Property Downpayment Calculator