Buyer’s Stamp Duty and GST on a KeyStone @ Mandai freehold B2 industrial unit.
Enter a purchase price to see the Buyer’s Stamp Duty on a KeyStone @ Mandai freehold B2 unit, built up band by band, together with the 9% GST on the purchase. The box opens at the project’s entry quantum of S$2,219,000. For the full purchase picture — progressive payments, cash upfront and monthly repayment — use the industrial purchase calculator.
Figures update as you type.
Duty is assessed on the price or the market value of the unit, whichever is higher.
On the price before GST.
Each band is charged only on the slice of the price that falls inside it.
Swipe sideways to see the full table
| Band | Rate | Amount in band | Duty from band |
|---|---|---|---|
| Total Buyer’s Stamp Duty | — | ||
Charged where the seller is GST-registered, which is normal on a developer sale.
On a unit under construction the GST is not a single payment — it attaches to each instalment as it falls due across the build. See the industrial purchase calculator for the instalment-by-instalment figures.
Five bands apply: 1% on the first S$180,000, 2% on the next S$180,000, 3% on the next S$640,000, 4% on the next S$500,000, and 5% on everything above S$1,500,000. The scale is marginal, not a cliff edge — crossing into a higher band raises the rate only on the slice above the threshold, never on the whole price. That is why the effective rate always sits below the headline rate: at S$2,219,000 the top band applies to S$719,000 of the price and the effective rate works out at about 3.63%, not 5%. Buyer’s Stamp Duty tops out at 5%.
Industrial property carries Seller’s Stamp Duty on a disposal within three years: 15% within one year, 10% within two, 5% within three, and nothing thereafter, charged on the sale price or market value, whichever is higher. It applies to industrial property acquired on or after 12 January 2013, regardless of actual use or buyer profile. Anyone planning a medium-term hold should build the three-year clock into the exit, alongside KeyStone @ Mandai’s estimated TOP of 31 December 2028.
GST at 9% applies to the purchase price where the seller is GST-registered. On a unit under construction it accrues per instalment rather than once at the end. Recovery turns on the entity rather than merely on registration. An operating company, GST-registered and already carrying on taxable business activities, may generally claim the GST as input tax as it is incurred. A non-operating company — newly incorporated, or an investment-holding vehicle not yet carrying on taxable activities — would not usually begin claiming during construction, and may instead start once the property reaches TOP and operating activities commence. The position cannot be determined from the outside; these are general guidelines and are subject to the rules set by IRAS.
Legal and conveyancing fees, valuation, bank charges and lease duty on a subsequent letting all sit outside these figures, as does mortgage duty on the facility. Note also that duty is assessed on the higher of the price and the market value, so a price agreed below market does not reduce the duty.
Indicative estimates only. Confirm Buyer’s Stamp Duty, Seller’s Stamp Duty and GST with IRAS, and financing with MAS or your bank, before you commit.
Duty is worked out band by band, not at a single rate. On the entry quantum of S$2,219,000 the bands produce S$80,550, an effective rate of about 3.63% — well below the 5% top band, because only the portion above S$1,500,000 is charged at 5%. Enter any price above to see the same working. Duty is assessed on the price or the market value, whichever is higher, and is rounded down to the nearest dollar subject to a minimum of S$1.
No Additional Buyer's Stamp Duty arises on a B2 industrial purchase, whoever is buying. Individuals, Singapore-incorporated companies and foreign entities are all assessed on Buyer's Stamp Duty alone, and the number of properties already owned does not change the figure. This is why the row above is shown and marked not applicable rather than left out.
Industrial property carries Seller's Stamp Duty on a disposal within three years of acquisition: 15% within the first year, 10% in the second and 5% in the third, charged on the sale price or market value, whichever is higher. Nothing is payable after three years. This applies to industrial property acquired on or after 12 January 2013 regardless of how the unit is actually used or who owns it, so factor the three-year clock into any exit plan. Verify the position with IRAS before you transact.
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