Property Decoupling & Share Transfer Calculator
Estimate the true costs of a bona fide share transfer between co-owners, BSD, and ABSD impact under IRAS Section 33A statutory guidelines. Estimates only; seek legal advice.
For Private Residential Properties & MOP-Fulfilled ECs
HDB flats cannot be decoupled between spouses since 2016. Figures are estimates from PropAce's rules engine and are not advice. Whether an arrangement is accepted is for IRAS to decide, so seek legal advice before acting.
1. Current Property & Share
Valuation of the property currently co-owned and the proportion being transferred.
2. Transferring Co-Owner's CPF
When a share is transferred, the CPF-OA savings used on it, plus accrued interest, are refunded to the transferring owner's own CPF account. This is not a cost, but it does have to be funded at transfer.
This refund goes back into the transferring owner's own CPF account. It is shown separately and is not counted in the true costs.
3. Buyer Profile
The residency status of the owner who would buy the next property, and whether the receiving co-owner already owns another property.
IRAS may disregard an arrangement under Section 33A of the Stamp Duties Act if it is made to avoid or reduce stamp duty. A transfer that is not a genuine part-sale at fair market value with authentic financing may be disregarded, and the duties that were avoided may then become payable. This calculator cannot tell you whether your arrangement would be accepted. Please seek independent legal advice before proceeding.
Estimated decoupling result
Enter your details to see an estimate.
Need to check TDSR for the new loan?
Calculate maximum borrowing limits under MAS rules.
Frequently Asked Questions on Decoupling in Singapore
Key regulatory, tax, and legal guidelines under IRAS, CPF Board, and MAS.
What is property decoupling in Singapore?
Decoupling is a legal transaction where one co-owner of a private residential property transfers (sells or gifts) their ownership share to the other co-owner. Once the transfer is completed, the transferring party no longer owns a residential property, so a later purchase may be assessed for Additional Buyer's Stamp Duty (ABSD) at the first-property rate instead of the second-property rate. The ABSD difference depends on the buyer's residency and the purchase price, and IRAS may disregard arrangements made to avoid stamp duty (see the Section 33A question below). Seek legal advice.
Can HDB flat owners decouple?
No. Since 2016, HDB no longer permits the transfer of flat ownership between spouses or family members except under specific non-commercial grounds such as divorce, death of an owner, or marriage dissolution. Decoupling is strictly applicable to private residential properties and Executive Condominiums (ECs) that have passed their 5-year Minimum Occupation Period (MOP).
What stamp duties and costs are incurred when decoupling?
Decoupling incurs: (1) Buyer's Stamp Duty (BSD) on the market value of the transferred share based on prevailing IRAS tiers; (2) Conveyancing legal fees, which this calculator estimates at about S$5,000 (actual quotes vary by law firm); (3) Bank loan restructuring or refinancing fees, estimated at about S$2,000 (actual fees vary by bank); and (4) ABSD on the transfer only if the receiving spouse already owns another residential property. The CPF refund is shown separately because it is not a cost: it returns to the transferring owner's own CPF, but it does need to be funded at transfer.
Do I have to refund CPF when decoupling my share?
Generally yes. Under CPF Board rules, a transferring party who used CPF on the property has to refund the CPF-OA savings used, plus accrued interest, to their own CPF account. This is not a cost because the money goes back to the transferring owner, but it must be funded at transfer, usually from the receiving party's payment or loan. Confirm the exact refund amount with CPF Board and your lawyer.
What is IRAS's stance on artificial 99-1 property holding and decoupling?
Under Section 33A of the Stamp Duties Act, IRAS possesses statutory powers to disregard any artificial, contrived, or non-commercial arrangement structured to avoid or reduce stamp duty. Where an arrangement (such as an artificial 99-to-1 share split executed without commercial justification) is disregarded, IRAS will claw back the full 20% ABSD avoided and impose a statutory 50% penalty surcharge. Legitimate decoupling must be a genuine, arm's-length part-purchase at prevailing market valuation with authentic bank financing. Seek independent conveyancing legal advice before undertaking any share restructuring.