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Buying Guide · Buried Fine Print

The ABSD Remission 6-Month Clock: What Upgraders Often Miss

The ABSD refund for married couples sounds simple: buy your next home, sell your current one within 6 months, get the ABSD refunded. In practice, the clock starts from a date that catches people off guard, and IRAS states that it will not extend the 6-month timeline.

For the base rate table and overall ABSD mechanics, see our ABSD guide. This article focuses specifically on the refund deadline and where it goes wrong.

When the clock actually starts

You must sell your first property within 6 months after:

IRAS defines the purchase date as the date the Option to Purchase (OTP) is accepted, or the date of the Sale and Purchase Agreement, or the date of transfer, where the first two do not apply.

This is the single biggest source of confusion. Buyers who purchase an uncompleted new-launch condo often assume their 6 months started at the OTP. For an uncompleted property it did not: the 6 months run from TOP or CSC, whichever comes first. That can work in your favour, but it is also a hard date once it arrives.

What triggers outright rejection

IRAS's published position is that the 6-month sale timeline, together with the other conditions, must be adhered to, and that the refund application will be rejected if any of the conditions is not met. IRAS also states that an extension of the six-month timeline will not be acceded to. The only extension IRAS has ever given was a one-off COVID-19 measure for couples who bought on or before 1 June 2020.

It is the date of sale of the first property that counts, not the date the sale completes. IRAS defines the date of sale as the date the buyer accepts the OTP, or the date of the Sale and Purchase Agreement signed by the buyer, or the date of transfer, where those do not apply. A sale that falls outside the window means the full ABSD paid is forfeited, not a prorated amount.

The sequencing trap

Because the deadline is unforgiving, couples who buy their next home first and only then start marketing their current one are taking on real timing risk. Finding a buyer, agreeing a price and having the buyer accept the OTP all have to happen inside the window, and the time this takes varies with the market and the property. IRAS itself encourages couples to start marketing the first property early at realistic prices, and to consider securing a buyer before buying the next property.

The safer sequence, where it's financially workable, is securing a buyer who has accepted an OTP on the current property before exercising the OTP on the new one, rather than relying on the 6-month window as a safety net.

Estimate your current property's realistic sale proceeds and timeline with PropLeh's HDB Sale Proceeds Calculator.

Who qualifies, and what has to be sold

The refund applies to married couples where at least one spouse is a Singapore Citizen, buying a second residential property jointly in their own names. IRAS lists these conditions:

For purchase forms submitted on or after 2 July 2023, IRAS refunds ABSD automatically within 6 weeks of stamping the sale of the first property, provided the couple declared their intention to sell and claim the refund in the e-Stamping form. Older forms need a refund application through the myTax Portal.

Worked example

A couple exercises the OTP on a new-launch condo (uncompleted) on 1 March 2026, paying ABSD upfront on the purchase. The project's TOP is issued on 15 December 2027 (and it is the earlier of TOP and CSC). Because the property was uncompleted at purchase, their 6-month clock runs from the TOP date, not the 2026 purchase date, giving them until roughly mid-June 2028 to sell their first property (by the date of sale as defined above).

Contrast this with a couple who buys a completed resale condo on 1 March 2026. Their clock runs from that purchase date, giving them until around 1 September 2026 to sell.

Illustrative dates only. Confirm your own TOP/CSC date and purchase date with your lawyer.

FAQ

Does the 6-month clock apply the same way to HDB and private property purchases?

The trigger date logic (purchase date vs TOP/CSC) depends on whether the second property was completed or uncompleted at the time of purchase, not on whether it is HDB or private. One difference: a couple upgrading from one HDB flat to another is required by HDB to dispose of the existing flat within 6 months, so IRAS gives the ABSD remission upfront and no ABSD is payable on the new HDB flat.

Can I get a partial refund if I sell slightly after 6 months?

IRAS states that the refund application will be rejected if any of the conditions is not met, and does not describe any prorating for a late sale.

If my new property is uncompleted, does that always extend my deadline?

It changes when the 6 months start counting, because it runs from the TOP or CSC issue date (whichever is earlier) rather than the purchase date. It does not change the fact that it is still a hard 6-month window once that date arrives.

What if I can't find a buyer for my first property in time?

IRAS states that it will not extend the 6-month timeline, and its published conditions describe no appeal or grace period for this scenario. This is why IRAS encourages couples to consider securing a buyer before buying the next property.

Sources

Figures current as of October 2026. This remission scheme's conditions have been refined over time; always verify your specific trigger date and eligibility against the live IRAS page or with IRAS directly before relying on it for a major purchase decision.

Trying to work out whether your timeline realistically supports this remission? Message us on WhatsApp before you exercise an OTP on your next home, and we'll help you think through the sequencing.