BSD & ABSD Calculator (Singapore, 2026)
Estimate Buyer’s Stamp Duty (BSD) and Additional Buyer’s Stamp Duty (ABSD) for a residential property. Rates follow IRAS BSD tiers (from 15 Feb 2023) and ABSD profiles (on or after 27 Apr 2023).
Inputs
What to do with the result
- Read the explainer: BSD & ABSD in Singapore (simple guide)
- Budget your downpayment + duties: Property Affordability Calculator
- Borrowing constraints: TDSR / MSR guide or TDSR/MSR calculator
- Official tools: IRAS stamp duty calculators
Assumptions (rates)
- BSD tiers (residential): 1% (first S$180k), 2% (next S$180k), 3% (next S$640k), 4% (next S$500k), 5% (next S$1.5m), 6% (remaining) — effective 15 Feb 2023.
- ABSD (on or after 27 Apr 2023): SC 2nd 20%, SC 3rd+ 30%; SPR 1st 5%, SPR 2nd 30%, SPR 3rd+ 35%; Foreigner 60%; Entity 65%; Trustee 65%.
Rates can change; confirm on IRAS before committing.
Quick start
This page is a planning model. Use it to get a directionally correct answer fast, then confirm final numbers with your bank/lawyer/agent and official calculators where relevant.
Key assumptions (what this model does and doesn’t do)
- BSD is tiered (marginal) — higher portions of the price are taxed at higher rates.
- ABSD depends on buyer profile (citizenship, number of properties, etc.).
- This is a planning estimate; confirm with IRAS for your exact profile and date of purchase.
Worked example (detail)
Example: why BSD isn’t ‘one flat %’
BSD is calculated in brackets. That’s why a small increase in price doesn’t apply the top rate to the whole price — only the portion in that bracket.
Common mistakes
- Mixing up cash vs CPF (they behave differently in approvals and refunds).
- Using optimistic assumptions (resale value, appreciation, investment return) without testing a conservative scenario.
- Forgetting one-off costs (fees, penalties, duties) that dominate short horizons.
FAQ
Does ABSD apply to my case?
It depends on your profile and existing property count. Check IRAS guidance for the exact category.
Do I pay BSD/ABSD in cash?
Often payable at completion; CPF usage may be possible depending on your situation.
Should I include this in my upfront cash planning?
Yes — stamp duties are one of the biggest upfront cashflow items.
Related ownership-structure questions
This calculator estimates duties. It does not tell you whether a co-ownership structure is wise. If the purchase involves family or multiple owners, also read joint tenancy vs tenancy in common, property decoupling, and buying property with parents or family.
How to use this calculator well
Use this to estimate Singapore BSD/ABSD and your upfront cash/CPF needs. Always verify rates and eligibility before paying option fees.
- Enter purchase price (or valuation if required).
- Select buyer profile (citizen/PR/foreigner) and property count.
- Use the output to plan your upfront cash buffer.
Scenario library (sanity checks)
Use these simplified scenarios as sanity checks. Replace the numbers with your own situation.
- Example A (first home):
Purchase price: $800,000. Singapore Citizen buying first residential property. Use the estimate to plan option fee + BSD + legal/valuation buffers.
- Example B (additional property):
Purchase price: $1,500,000. Singapore Citizen buying second residential property. ABSD can be the largest upfront item — stress test your cashflow.
Methodology & assumptions
- Uses published stamp duty tiers (BSD/ABSD).
- Excludes: seller’s stamp duty (SSD), legal fees, valuation fees, agent fees, renovation.
- Rates can change; verify with IRAS before committing.
What this result does not include
This result focuses on stamp duties based on the assumptions you keyed in. It does not include legal fees, valuation fees, renovation costs, loan setup costs, or the cashflow effect of having to complete two linked transactions close together. That matters because buyers often treat duties as the whole transaction friction, when in practice duties are only one part of the total entry burden.
It also does not resolve edge cases around ownership structure or beneficial ownership that may need professional confirmation. Use the number here as a planning anchor, then stress-test the wider transaction stack before you commit.
How the inputs affect the output
- Property count: depends on beneficial ownership, not just your name on title.
- Profile: residency and marital purchase arrangements can change ABSD treatment.
A calculator is most useful when it changes the questions you ask. After getting a result, ask what assumptions matter most, what happens if those assumptions are wrong, and whether the plan still works with slightly worse numbers. A robust decision rarely depends on one perfect estimate.
What the result should make you ask next
This page works best when paired with affordability, cash-needed, and sell-proceeds calculations. Stamp duty tells you how expensive the move is to execute; the other tools help you decide whether the move remains wise afterwards.
Use this calculator with strategy, not in isolation
- Cash timing matters — the duty is not abstract; it has to be funded.
- The tax cost interacts with all other transaction costs like legal fees and moving/renovation.
- A mathematically “possible” purchase can still be a poor plan once duties are included.
What people often forget
- Comparing purchase structures or ownership sequencing.
- Testing whether a planned move still makes sense after all taxes.
- Understanding whether an upgrade, investment purchase, or restructuring step is worth pursuing.
When this calculator is most useful
- If the duty amount materially changes your cash buffer, the purchase may be feasible but fragile.
- If the duty is so large that you need appreciation just to break even on transaction friction, your holding period matters more.
- For multi-property situations, use the result as a strategy input, not just a cost estimate.
How to interpret the result
Stamp duties are not just “extra cost”. They affect the amount of cash you need, the required holding period to make a move worthwhile, and whether a purchase still makes sense after all frictions are included. For some buyers, especially with ABSD exposure, the stamp duty is not a side cost — it is one of the main costs.
Why stamp duty matters beyond the headline number
BSD and ABSD are often talked about as if they are simple percentage add-ons, but they affect behaviour, feasibility, and strategy in important ways. This calculator helps you estimate the immediate stamp duty impact and understand how much the transaction friction changes the economics of the purchase.
What this calculator helps you understand
The aim is not perfection. It is to avoid being surprised by costs you could have anticipated with a slightly better planning process.
- Use a conservative scenario, not only a comfortable scenario.
- Test whether the decision still works if one major assumption worsens.
- Write down what the calculator excludes so you do not treat the result as complete.
- Prefer a slightly pessimistic planning number over an optimistic one.
How to improve the quality of your estimate
Once you know the tax cost, compare it against the expected value of the move: lifestyle improvement, rent savings, investment logic, or restructuring benefit. If the tax friction overwhelms the benefit, the move may still be possible, but it may not be smart.
What to compare after getting the result
Stamp duties can turn a superficially attractive move into a poor one, especially when the holding period is short or the investment case is thin. That is why duty calculations are not just tax admin — they are part of strategic decision-making.
Why transaction friction changes strategy
Stamp duties matter because they are paid at the transaction stage, not slowly over time. That means they can make a move look affordable on paper but still painful in practice if your buffer is thin or your holding period is short. Heavy transaction friction also punishes indecision: the more often you buy, sell, or restructure without a clear plan, the more of your capital disappears into costs that do not improve the property itself.
After the number, do the decision check
The calculator gives the duty amount. The judgement comes from the BSD & ABSD guide and the cash required to buy property guide, which show how that one-off cost changes liquidity and holding-period math.
References (starting points)
- IRAS: Stamp Duty (BSD/ABSD) rates and guides.
Editorial Policy, Advertising Disclosure, and Corrections.
Last updated: 25 Mar 2026