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A Simple Guide to Decoupling Property in Singapore: Legal Ways to Avoid ABSD

Published 27 January 2026

TL;DR

What it is: Transferring 100% ownership of a shared property to one spouse to free up the other’s ‘first-timer’ status
Benefit: Saves 20% Additional Buyer’s Stamp Duty (ABSD) on the second property purchase for Singapore Citizens
Eligibility: Primarily for Private Property owners. HDB decoupling is restricted to divorce, death, or financial hardship

Buying a second property may be a dream come true for many, but in Singapore, it also means having to pay the hefty Additional Buyer’s Stamp Duty (ABSD). The ABSD for Singapore Citizens (SCs) buying a second property is 20% of the purchase price, or the current market value of the property, whichever is higher. It is 30% for Singapore Permanent Residents and 60% for foreigners. However, many married couples in Singapore have found a way to buy a second home without paying ABSD by decoupling.

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The Truth Behind Property Decoupling in Singapore

What is property decoupling?
Why do homeowners choose to decouple?
Joint Tenancy vs Tenancy-in-Common vs 99-1 Ownership
Steps to Decouple an HDB or Private Property
Legal and Financial Considerations
The Cost of Decoupling: Is it Worth It?
FAQs about decoupling property in Singapore

What is property decoupling?

Decoupling is the process by which one co-owner transfers their ownership share of a property to the other co-owner, leaving one person as the sole owner. This allows the spouse or partner who relinquished their share to purchase another property in their own name without incurring ABSD.

Note that any ownership structure for decoupling should have commercial substance. Artificial arrangements made simply to avoid taxes may be subject to Inland Revenue Authority of Singapore (IRAS) scrutiny.

Why do homeowners choose to decouple?

ABSD savings: SCs do not pay ABSD on their first property, but a second property is subject to a 20% ABSD. By decoupling, the spouse who transfers their share is considered a first-time buyer for the next property purchase.
Long-term investment: Allows one spouse to invest in a second property while maintaining ownership of the first.
Estate planning: Some homeowners decouple to facilitate property inheritance and wealth distribution.
Cash flow and financing flexibility: If one spouse has a stronger financial standing, decoupling allows the sole owner to refinance the existing mortgage.

Joint Tenancy vs Tenancy-in-Common vs 99-1 Ownership

1. Joint Tenancy

Under joint tenancy, all co-owners own the entire property together as a single entity. No owner has a specific share — each person owns 100% of the property. This means that all decisions regarding the property must be made jointly.

Key Features of Joint Tenancy

Right of survivorship: If one co-owner passes away, their share automatically goes to the surviving co-owner(s).
Simplified ownership transfer: No need for a will or probate process.
Common for married couples: Ensures a smooth transfer of property.
No individual shares: Co-owners cannot sell or transfer their portion separately.
Not ideal for investment: Does not allow for flexible property distribution.

2. Tenancy-in-Common

Under tenancy-in-common, each co-owner owns a specific share of the property, which can be equal or unequal (e.g., 70-30 or 50-50). Each share is distinct and can be sold, transferred, or inherited separately. It’s a flexible ownership structure for fair allocation of funds.

Key Features of Tenancy-in-Common

Distinct shares: Each owner has a separate percentage ownership.
No right of survivorship: Upon death, the share passes according to a will or intestate succession law.
More flexible for investment: Co-owners can sell the property or transfer their shares independently.
More complex legal process: Requires a will for inheritance planning.

3. 99-1 Ownership Structure

A 99-1 ownership split is a type of tenancy-in-common where one owner holds 99% of the property, while the other holds 1%. This structure is often used by married couples who want to decouple in the future.

However, do note that its inclusion in this guide is merely for explaining legal ways of decoupling, not a promotion of the practise as tax evasion. Since 2024, the Inland Revenue Authority of Singapore and the Council for Estate Agencies have been cracking down on homewoners who illegally took advantage of the 99-1 ownership structure. Aside from jail time, guilty parties would have to pay clawback and surcharges.

Key Features of 99-1 Ownership

Easier decoupling process: The 1% owner can transfer their share with minimal stamp duties.
Minimises Buyer’s Stamp Duty (BSD): When transferring the 1% share, BSD applies only to the small portion.
ABSD reduction strategy: The 1% owner can purchase another property without incurring ABSD on the second property.
Limited for true investment: Primarily a legal strategy rather than a balanced ownership structure.

Steps to Decouple an HDB or Private Property

Decoupling an HDB flat

HDB decoupling is only allowed in specific scenarios:

Marriage (transfer between spouses)
Divorce
Financial hardship or medical reasons
Death of an owner

HDB does not permit decoupling purely for investment purposes. To transfer ownership, co-owners must submit an application to HDB, and the new sole owner must meet eligibility conditions such as the Minimum Occupation Period (MOP).

Decoupling a Private Property

Private property owners have more flexibility in decoupling. The process involves:

Check ownership type: The property must be held as tenants-in-common.
Valuation of property: Engage a licensed valuer to determine the market value of the share being transferred.
Sale and purchase agreement: The spouse selling their share must sign an agreement transferring their ownership.
Stamp duties and legal fees: Pay applicable BSD and Seller’s Stamp Duty (SSD) if applicable.
Mortgage refinancing: If the property is still under a loan, the remaining sole owner must refinance it under their name.
Lodge the transfer with SLA: The transfer is registered with the Singapore Land Authority (SLA).

Legal and Financial Considerations

Buyer’s Stamp Duty (BSD): The spouse buying over the shares must pay BSD based on the market value of the transferred shares.
Seller’s Stamp Duty (SSD): If the property was purchased less than three years ago, SSD applies.
CPF refund: If CPF funds were used for the initial purchase, the selling spouse must refund the principal amount plus accrued interest to their CPF account.
Bank’s consent: If there is an existing loan, the bank must approve the transfer and refinance under the sole ownership.

The Cost of Decoupling: Is it Worth It?

While the ABSD savings are significant, decoupling is not free. You must calculate the costs of decoupling to ensure it does not exceed your potential savings.

Cost Component

Estimated Cost

Legal Fees

$5,000–$7,000

BSD

1%–4% of the transferred share

Valuation Report

$500–$800

Mortgage Refinancing

Varies by bank

SSD

4%–2% (if sold within 3 years)

CPF Refund

Depends on the amount used + accrued interest

Can You Afford to Decouple? Get the Professional Advice of a Property Agent

Before decoupling your property with your spouse, speak to a certified property agent and check all the costs and risks involved. It is a huge financial responsibility, after all.