Total Property Stamp Duty in Singapore: 5 Mistakes to Avoid

Updated 5 Oct 2026 in Property & HDB

Adds BSD and ABSD together so you know the full stamp duty bill before you sign an option to purchase. 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.

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.

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.

1. Using the price instead of the higher valuation

Stamp duty is charged on the higher of price or market value.

2. Ignoring SSD when selling early

Selling within four years of buying (for purchases from 4 July 2025) attracts Seller's Stamp Duty.

3. Assuming the bank will lend 75%

LTV falls to 45% for a second loan and is reduced further for long tenures or older borrowers.

4. Using the advertised interest rate for affordability

Banks apply a stress-test rate to TDSR and MSR calculations.

5. Overlooking other costs

Legal fees, valuation, fire insurance, renovation and agent fees all add to the total outlay.

The correct method

Total = BSD (tiered 1%–6%) + ABSD (price × ABSD rate for your profile).

For example, with these inputs:

the calculator returns:

Related calculations

The Total Property Stamp Duty Calculator applies the formula consistently, so it is a quick way to double-check your own working.

Run your own numbers: Total Property Stamp Duty Calculator

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