Stamp Duty at The Collective at One Sophia in Brief
Every purchase at The Collective at One Sophia carries Buyer’s Stamp Duty, and some buyers pay Additional Buyer’s Stamp Duty as well. Both are due within 14 days of signing the sale and purchase agreement, so they sit at the front of the budget with the booking fee.
This worked example uses an illustrative figure of $1,500,000. It is not the price of any home at the development; the Sales Concierge sends the current price list on request, and the same steps apply to any price.
Buyer’s Stamp Duty on an Illustrative The Collective at One Sophia Purchase
BSD is charged in bands. On the illustrative $1,500,000, the first $180,000 at 1% is $1,800, the next $180,000 at 2% is $3,600, the next $640,000 at 3% is $19,200, and the next $500,000 at 4% is $20,000. The four bands add up to $44,600, and no part of the illustrative figure reaches the 5% or 6% bands.
The residential bands have applied since 15 February 2023: 1% on the first $180,000, 2% on the next $180,000, 3% on the next $640,000, 4% on the next $500,000, 5% on the next $1,500,000 and 6% above $3,000,000.
Because the bands step up with the price, the effective BSD rate on a purchase rises gradually rather than jumping at a threshold. On the illustrative $1,500,000 it works out at just under 3% of the price, and on a smaller illustrative figure the effective rate is lower, since more of the price falls in the 1% and 2% bands.
ABSD on the Same The Collective at One Sophia Example
ABSD is a single rate on the whole price. On the illustrative $1,500,000, a Singapore Citizen buying a first home pays no ABSD, so the total stamp duty is the $44,600 of BSD. A Citizen buying a second home adds 20%, or $300,000, and a Permanent Resident buying a first home adds 5%, or $75,000.
A foreigner’s ABSD at 60% would be $900,000 on the same illustrative figure, unless a free trade agreement applies, and an entity’s at 65% would be $975,000. These are the rates IRAS has applied since 27 April 2023.
Seller’s Stamp Duty and The Collective at One Sophia
Seller’s Stamp Duty concerns a later sale rather than the purchase. For homes bought on or after 4 July 2025, it applies on a sale within four years: 16% within the first year, 12% in the second, 8% in the third and 4% in the fourth, and nothing after that.
For a home bought under construction, the holding period counts from the date of the option to purchase, not from completion. With vacant possession expected on 31 December 2029, a purchase made in 2026 would be clear of SSD before the keys are handed over.
Comparing Buyers on The Collective at One Sophia Example
Set side by side, the illustrative $1,500,000 shows how much the buyer profile matters. A Singapore Citizen’s first home carries stamp duty of $44,600 in total; the same Citizen’s second home carries $344,600 once the 20% ABSD is added; and a Permanent Resident’s first home carries $119,600 with the 5% ABSD. The BSD part is the same in every case, because it depends only on the price.
For a household that already owns a home, the order of selling and buying is therefore the biggest lever. A couple buying jointly, with at least one Singapore Citizen spouse, who sell their existing home within the period IRAS allows may claim a refund of the second-home ABSD, subject to its conditions. Buyers in that position should map out both transactions before choosing a unit, because the duty is payable within 14 days of signing even when a refund is expected later.
Paying the Duty at The Collective at One Sophia
Stamp duty is paid to IRAS, usually through the buyer’s conveyancing lawyer, who stamps the sale and purchase agreement electronically once the duty is settled. The deadline is 14 days from the date the agreement is signed, and late payment attracts penalties, so the funds need to be ready when the agreement is signed rather than when the loan is drawn.
CPF Ordinary Account savings can be used for BSD on a residential purchase, within the CPF rules, while ABSD is normally paid in cash first and may then be reimbursed from CPF where the rules allow. The worked figures here are illustrative; the stamp duty calculator applies the same rates to the price of a particular home once the Sales Concierge has sent the price list.
Planning the Duty for The Collective at One Sophia
Because duty falls due early, it is usually paid from cash or CPF Ordinary Account savings alongside the 5% booking fee and the balance of the first 20% of the price. The progressive payment calculator places it in the full schedule, and the stamp duty calculator runs any price and profile.
The stamp duty page carries the full rate tables. Showflat viewings are arranged by appointment through the Sales Concierge.
This article is general information as at the date shown and is not financial, legal or tax advice. Statutory figures are from IRAS and MAS; particulars of The Collective at One Sophia are from the developer’s brochure and announcements, and launch dates from the developer and published reports.
Talk to The Collective at One Sophia Sales Concierge
The Sales Concierge sends the price list on request, the balance units and the e-brochure for The Collective at One Sophia. Showflat viewings are arranged by appointment through the Sales Concierge.

