Seller Stamp Duty Calculator Singapore: Work Out Your SSD Before You List
- SSD is charged on the higher of your selling price or market value, at a flat rate set by your holding period — it is not tiered.
- Properties bought on or after 4 July 2025 face a four-year window at 16/12/8/4%; purchases from 11 March 2017 to 3 July 2025 keep the older 12/8/4% three-year table.
- The holding period runs between contract dates (OTP exercise to sale contract), not completion dates.
- Each tier is a cliff: on a S$2.75M sale, crossing from year 1 to year 2 of the current regime saves S$110,000.
- SSD must be paid within 14 days of the sale contract (30 days if it is executed overseas), so budget for it before you list.
A seller stamp duty calculator Singapore sellers can trust needs only three inputs: the date you bought the property, the date you intend to sell it, and the higher of your selling price or current market value. Get any of the three wrong and the answer can move by six figures. This guide walks through exactly how the calculation works in 2026, with the current rate tables and worked examples — or you can skip the maths and use my free Seller's Stamp Duty calculator directly.
Seller's Stamp Duty (SSD) exists to discourage short-term flipping of residential property. It is charged when you dispose of a residential property within a set holding period of buying it — and since July 2025 that window is longer, and the rates steeper, than most sellers remember.
How a seller stamp duty calculator actually works
The formula itself is short:
SSD payable = SSD rate (based on your holding period) × the higher of your selling price or the property's market value.
Three details decide whether the output is right:
1. Which rate table applies. The date you bought the property decides the regime. Properties purchased on or after 4 July 2025 sit under the current four-year, 16%-peak table. Properties purchased between 11 March 2017 and 3 July 2025 stay under the older three-year, 12%-peak table for as long as you own them.
2. The holding period. It runs from the date you acquired the property (generally the date you exercised the Option to Purchase or signed the Sale & Purchase Agreement) to the date you contract to sell it — not the completion date of either transaction.
3. The base. SSD is charged on the higher of the price stated in the sale contract or the market value of the property. Selling below valuation to a related party does not reduce the duty.
SSD rates in 2026: which table applies to you
These are the rates published by IRAS as at August 2026. The full rate applies to the entire amount — SSD is not tiered like Buyer's Stamp Duty.
| Holding period | Bought on/after 4 Jul 2025 | Bought 11 Mar 2017 – 3 Jul 2025 |
|---|---|---|
| Up to 1 year | 16% | 12% |
| More than 1, up to 2 years | 12% | 8% |
| More than 2, up to 3 years | 8% | 4% |
| More than 3, up to 4 years | 4% | No SSD |
| More than 4 years | No SSD | No SSD |
If you bought before 11 March 2017, you are well past every SSD window and nothing here applies to your sale. For how SSD fits alongside Buyer's Stamp Duty and ABSD, see the umbrella guide to property stamp duty in Singapore.
We ran the numbers: three worked examples
The scenarios below are modelled illustrations at typical 2026 price points, not actual transactions.
| Scenario | Bought | Sold | Holding period | Rate | Sale price | SSD payable |
|---|---|---|---|---|---|---|
| D15 condo, quick exit | Sep 2025 | Aug 2026 | Under 1 year | 16% | S$2,750,000 | S$440,000 |
| Same unit, patient exit | Sep 2025 | Oct 2028 | Year 4 | 4% | S$2,900,000 | S$116,000 |
| D10 condo, old regime | May 2024 | Aug 2026 | Year 3 | 4% | S$3,200,000 | S$128,000 |
The first two rows are the ones to sit with. The same hypothetical unit, exited three years later, pays S$324,000 less in duty — before even counting the price growth. On post-July-2025 purchases, SSD is no longer a rounding error; it is often larger than the agent fee, legal fee and mortgage break cost combined.
How the holding period is actually counted
This is where sellers most often get a nasty surprise. The clock starts on the date you exercised your Option to Purchase (or signed the Sale & Purchase Agreement), not the completion date months later. It stops on the date you grant an option that is exercised, or sign a contract to sell — again, not completion.
Because each tier is a hard cliff, one week matters. On the S$2,750,000 example above, contracting to sell a fortnight before the first anniversary costs 16%; a fortnight after costs 12% — a difference of S$110,000 for waiting a month. Any competent seller stamp duty calculation should therefore be run on the contract dates, and if you are near a tier boundary, the listing strategy should be built around crossing it.
When SSD doesn't apply
You will generally pay no SSD if you have held the property beyond the applicable window — four years for post-4-July-2025 purchases, three years for the 2017–2025 regime. HDB owners rarely encounter SSD in practice because the Minimum Occupation Period usually outlasts the SSD window. A small number of statutory exemptions exist for specific situations; if you think one might apply to you, have your conveyancing lawyer confirm it against the IRAS rules before you commit to a sale — not after.
SSD is one line in a bigger sum
Whether a sale makes sense is never just the SSD line. Agency fees, legal fees, mortgage redemption, CPF refund with accrued interest and any bank penalty all land in the same statement. Once you have your SSD figure, run the full picture with the seller's net proceeds calculator, and read the companion piece on the true cost of selling property in Singapore. If you are still deciding whether SSD applies to you at all, start with the plain-English explainer on what Seller's Stamp Duty is.
And if you are weighing a sale where the SSD tier, the market window and a life event are all colliding — a divorce, an estate, a relocation — that is precisely the kind of transaction I handle. The numbers above are the easy part; the sequencing is where money is actually saved.
Want your property's real number?
Get a free, no-obligation valuation of your Singapore home — a defensible figure you can actually plan around.
Frequently asked questions
What are the Seller's Stamp Duty rates in Singapore in 2026?
For residential property bought on or after 4 July 2025: 16% if sold within the first year, 12% in the second, 8% in the third, 4% in the fourth, and nothing after four years. Property bought between 11 March 2017 and 3 July 2025 pays 12%, 8% and 4% across a three-year window.
Is SSD calculated on the selling price or the valuation?
On whichever is higher. If you sell below market value, IRAS assesses SSD on the market value, so under-declaring the price does not reduce the duty.
How is the SSD holding period counted?
From the date you acquired the property (typically the date the Option to Purchase was exercised or the Sale & Purchase Agreement was signed) to the date you contract to sell it. Completion dates are not the reference points.
Do HDB sellers pay Seller's Stamp Duty?
SSD applies to residential property including HDB flats, but in practice the Minimum Occupation Period usually exceeds the SSD window, so most HDB sellers have already held past it by the time they are allowed to sell.
When does SSD have to be paid?
Within 14 days of the date of the sale contract or agreement, or within 30 days if the document is executed overseas. Your conveyancing lawyer normally handles the stamping.
Can I legally avoid paying SSD?
Only by holding the property beyond the applicable window, or by qualifying for one of the narrow statutory exemptions. If you are close to a tier boundary, timing the sale contract past the anniversary is often worth a five- or six-figure saving.