Decoupling for Property Owners: Is it Legal?

By Bloom Realty Team | Dec 22, 2025 | 6 min read

"Decoupling" is a buzzword in property investment circles. It involves one spouse transferring their share of a jointly-owned property to the other spouse, effectively freeing up their name to purchase a second property as a "first time buyer" (and thus paying 0% ABSD instead of 20%). But is it legal, and how do you do it?

Methods of Decoupling

1. By Way of Sale (Part-sale): This is the standard method for private properties. Spouse A sells their 50% share to Spouse B.

• Stamp Duty: Spouse B must pay Buyer's Stamp Duty (BSD) on the value of the 50% share acquired.
• Funding: Spouse B must have sufficient CPF/Cash and loan eligibility to take over the full mortgage.
• Legality: Perfectly legal for private properties. It is a genuine transaction.

The "99-to-1" Loophole: Closed?

Previously, some buyers would purchase a property with a 99% vs 1% holding structure, intending to sell the 1% later for a negligible stamp duty fee.

Warning: IRAS has cracked down on "99-to-1" arrangements that lack commercial substance. If the authority deems the structure was created solely to avoid tax, they can invoke Section 33A of the Stamp Duties Act to claw back the avoided duty plus a 400% surcharge. Do not attempt artificial decoupling schemes. Stick to genuine part-sales at market value.

HDB Decoupling: Not Allowed (Mostly)

Since 2016, HDB owners generally cannot transfer shares to a spouse solely for decoupling purposes. Transfers are only allowed under specific circumstances like divorce, death, or marriage. Therefore, decoupling is primarily a strategy for private property owners.

Conclusion

Decoupling is a powerful tool to double your property exposure efficiently. However, it requires significant capital (to buy out the share) and strict adherence to market valuation rules to avoid tax avoidance scrutiny.