Is the 99-1 property arrangement still legal in Singapore?

No. IRAS cracked down on 99-1 arrangements in 2023. Any transfer of a property share where the primary purpose is to reduce ABSD liability is now subject to ABSD as if the receiving party is buying the property at the prevailing rate. The arrangement is treated as tax avoidance.

What property restructuring is still legal in Singapore in 2026?

A genuine arm's-length transfer of property between spouses at full market value -- for legitimate reasons such as divorce settlement, estate planning, or business restructuring -- remains legal. IRAS assesses whether the transfer has a genuine commercial reason beyond ABSD reduction. BSD is payable on the transferred value. If the receiving spouse has no other property, no ABSD is triggered on the transfer itself.

All insights

Is Restructuring Your Property Still Worth It After the 99-1 Crackdown?

By Winfred Quek · CEA R073319H · 9-minute read · Last reviewed May 2026

Quick answer: The 99-1 loophole is dead. IRAS will impose ABSD on any arrangement where the primary purpose is stamp duty avoidance. However, genuine arm's-length decoupling where one spouse transfers their share at full market value for legitimate reasons remains legal and financially compelling. On a $1.5M investment property, the ABSD saved ($300,000) still far outweighs the decoupling cost (~$28,000–$35,000).

Facts verified: May 2026 · Sources linked below

For several years, a small number of buyers used the "99-1 arrangement" to circumvent ABSD. The scheme was elegant in its simplicity: one spouse would hold 99% of a property, the other 1%. The 1% holder would then transfer their share to the 99% holder, becoming property-free and free to buy a second property as a "first-time buyer" at 0% ABSD.

IRAS closed this loophole with a targeted enforcement action in early 2023, retrospectively assessing ABSD on hundreds of transactions and clarifying that any arrangement primarily motivated by ABSD avoidance constitutes tax avoidance. The penalties are severe: ABSD plus a 50% surcharge in many cases.

But the enforcement of 99-1 does not mean all property restructuring is dead. The key question is: what remains legal, when does it make financial sense, and how do you structure it correctly?

What Was the 99-1 Arrangement?

The 99-1 scheme worked as follows:

Step 1: Couple buys Property A as 99% / 1% (one holds 99%, the other holds 1%).

Step 2: The 1% holder sells their 1% share to the 99% holder for nominal value. ABSD on 1% of value = trivial amount.

Step 3: The former 1% holder is now property-free. They buy Property B at 0% ABSD as a "first-time buyer."

Step 4: ABSD on Property B (which would have been 20% if buying as a second property) is avoided entirely.

Post-2023 IRAS position: IRAS now treats any transfer where the "dominant purpose" is ABSD reduction as a sham. The receiving spouse at Property B is deemed to be paying ABSD as if it were their second property. Retrospective assessments with 50% surcharges have been issued. Do not attempt this structure.

What IS Still Legal: Genuine Decoupling

The crackdown targeted arrangements whose sole purpose was ABSD reduction. What remains legal is a genuine transfer of a property share at fair market value, with a legitimate reason beyond tax avoidance.

Legal and accepted reasons include:

Divorce or legal separation one spouse takes full ownership as part of matrimonial asset division
Estate planning transferring to a trust or adjusting ownership for succession purposes
Business restructuring genuine separation of personal and commercial assets
Full genuine decoupling where both parties agree on market value and the transfer is documented as arm's length, and where there IS a legitimate future investment objective that would have occurred regardless of ABSD

The distinction IRAS draws is between "the dominant purpose of this transaction is to reduce ABSD" vs "this transaction has genuine commercial reasons, and one incidental benefit is a change in ABSD position." The documentation, timing, and conduct of the parties matters enormously.

The Decoupling Math: Why It Still Works

For couples who jointly own a matrimonial home (both are Singapore Citizens, neither has any other property), genuine decoupling to enable one spouse to buy an investment property independently is still mathematically compelling.

The Cost of Decoupling

When Spouse A transfers their 50% share to Spouse B at market value:

BSD on transferred value: BSD applies to the purchase price of the share. On a $2M property, 50% = $1M transfer. BSD on $1M = 1% × $180,000 + 2% × $180,000 + 3% × $640,000 = $1,800 + $3,600 + $19,200 = $24,600.
Legal fees: approximately $3,000–$5,000 for the transfer and new sole-name mortgage documentation.
ABSD on transfer: 0% because Spouse B is receiving their first (and only) property as sole owner. No ABSD is triggered if the receiving spouse has no other property.
Total decoupling cost: approximately $28,000–$30,000 for a $2M matrimonial home.

The ABSD Saved on the Investment Property

Spouse A, now property-free, can buy an investment property at 0% ABSD as a first-time buyer. Without decoupling, any investment property bought jointly or in Spouse A's sole name (given Spouse A's existing 50% share) would be subject to 20% ABSD.

Investment Property Price	ABSD Without Decoupling (20%)	ABSD After Decoupling (0%)	ABSD Saved	Decoupling Cost	Net Saving
$1.2M	$240,000	$0	$240,000	~$28,000	~$212,000
$1.5M	$300,000	$0	$300,000	~$30,000	~$270,000
$2.0M	$400,000	$0	$400,000	~$33,000	~$367,000
$2.5M	$500,000	$0	$500,000	~$36,000	~$464,000

Decoupling cost calculated on 50% share transfer of a $2M matrimonial home. ABSD rate assumes SC second property = 20%. BSD computed at standard rates.

The break-even point is clearly in favour of decoupling for any investment property above approximately $200,000 in value which covers virtually every Singapore residential property purchase.

The Right Way to Execute Decoupling in 2026

Step 1: Obtain a formal property valuation from a licensed appraiser. The transfer must be at market value not a discounted or nominal amount.

Step 2: Engage a property lawyer to prepare the transfer deed. Document the genuine reasons for the transfer in the file.

Step 3: The receiving spouse may need to refinance the mortgage into sole name the bank will reassess TDSR on a single income. Confirm the single-income TDSR supports the existing loan.

Step 4: Pay BSD on the transferred value. This is stamped via IRAS. Legal fees paid to lawyer.

Step 5: After transfer is complete, the transferring spouse is property-free. They can now buy an investment property after a reasonable cooling-off period to demonstrate the transactions are not artificially connected.

Key Risks to Manage

The TDSR Qualification Risk

When one spouse takes on sole ownership of the matrimonial home, the bank must approve the single-name mortgage. If the sole owner's income is insufficient to service the full loan under TDSR (55% of gross income), the bank may require partial loan repayment or restructuring. This is a real constraint run the numbers before committing to decoupling.

CPF Complications

If the transferring spouse has used CPF for the property, the CPF OA funds used plus accrued interest must be refunded to their CPF account at the point of transfer not at the eventual sale. This reduces the cash available and increases the net cost of decoupling. Factor this in.

Timing Between Transactions

IRAS scrutinises the time gap between a decoupling transfer and the subsequent investment property purchase. A very short gap (weeks) will attract closer examination. While there is no fixed waiting period in the regulations, a reasonable gap of 3–6 months combined with clear documentation of the decoupling's independent rationale reduces scrutiny risk.

When Restructuring Does NOT Make Sense

If the matrimonial home has a large outstanding loan that the sole owner cannot service on their income alone the TDSR block kills the strategy before it starts.
If the couple has already used all their CPF, requiring large cash refunds to CPF at point of transfer.
If the intended investment property is less than $500,000 the break-even on decoupling costs is marginal.
If either party is approaching 55 and CPF SA/RA top-ups are the priority engaging CPF for property may not be optimal.

The Bottom Line

Property restructuring in 2026 is not dead it has simply been cleaned up. The 99-1 scheme was always a loophole exploit that IRAS was always likely to close. What remains available is the legitimate, properly documented, arm's-length transfer of property between spouses or family members for genuine reasons.

For a couple with one joint property, no other assets, and a clear plan to build a two-property portfolio, genuine decoupling followed by an independent investment purchase remains one of the most financially efficient moves available to Singapore property investors.