If you still own your HDB when you buy the condo, the condo counts as your second property. For a Singapore citizen that means 20% ABSD, paid in cash within 14 days of exercising the option.
On a $1.5M condo, that is $300,000 upfront. A refund exists for some married couples, but only if every condition is met on time. If the HDB does not sell in time, the refund is lost.
Selling first, or running both sides together with the sale moving first, removes that risk. It is what I do for most clients.
A typical plan runs about 4 to 4.5 months from listing to keys, and you can usually stay on in your HDB for up to 3 months after completion if your buyer agrees and HDB approves.
Your cash is needed early, for the option fee and stamp duty, long before your HDB proceeds arrive. Plan for that gap on day one.
“Should I sell my HDB first, or buy the condo first?” If I had a dollar for every time a couple asked me this in our first meeting, I would have a very nice renovation budget.
It is a fair question, and honestly it is the right one to ask early. The order you do things in decides how much cash you need on hand, how much stress you carry, and in the worst case, whether you end up paying a very expensive tax bill. It deserves a proper look, not a guess.
So let me walk you through how I think about it, the same way I do with my clients, with the real numbers and a timeline you can actually follow.
ABSD stands for Additional Buyer’s Stamp Duty. It is charged on top of the normal stamp duty when you already own property. For Singapore citizens it is 0% on your first property and 20% on your second.
Here is where upgraders get caught. If you still own your HDB on the day you buy the condo, the condo is your second property. That is 20% ABSD, calculated on the higher of the price or the market value, and you pay it in cash within 14 days of exercising the option. There is no grace period.
On a $1.5M condo, 20% is $300,000. Not a risk to take by accident.
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This is the route I recommend for most upgraders. In practice, “sell first” does not mean you sell, move out and then start looking. It means you run both sides at the same time, with the HDB sale moving first.
You list your HDB and start viewing condos in the same week, with your bank’s In-Principle Approval already in hand. When your HDB buyer takes the Option to Purchase, you secure your condo OTP with a longer exercise period, usually a month or more, so the dates line up. You exercise the condo once HDB approval for your sale is through.
The big win is that by the time you complete on the condo, you are no longer an HDB owner, so you pay no ABSD at all. The trade-off is a tighter timeline, which is why having a clear plan matters so much.
Buying first can work, but only with a clear, tested plan. There is a refund route for married couples, but it has conditions. You buy the condo jointly, at least one of you is a Singapore citizen, you are still married when the first home is sold, and the HDB is sold within the window IRAS sets, which is 6 months. IRAS is strict about how that 6 months is counted, so please check the dates with your lawyer before you exercise anything.
The catch is cash flow. You pay the 20% first, and you claim the refund later. If your HDB does not sell in time, the refund is lost, and no extension is given. In a softer HDB market, where resale prices have been slipping for several quarters, that is not a bet I like clients to make on hope.
Here is the timeline I aim for when we run both sides together. Every case is different, but this gives you a feel for the rhythm.
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After your HDB sale completes, you can usually stay on for up to 3 months under HDB’s temporary extension of stay. It needs your buyer’s agreement and HDB’s approval, and it should be agreed before the resale application goes in, so raise it early in your negotiation.
It does not delay the sale. Ownership passes to your buyer on completion day as planned, and your buyer starts servicing the loan, even while you are still living there. Only you and the occupiers registered with HDB can stay. Used well, those 3 months are what let you finish your renovation and move into the condo in a calm, organised way.
This is the part that surprises people the most. Your HDB proceeds come in late in the process, but the condo’s first payments come early. Before your sale completes, you need savings for the following:
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If you are confident about your timeline, have a solid cash buffer, and want to keep things simple, run both sides together with the sale moving first. That is the default I use for most clients, because it keeps the biggest risk off the table.
Buying first is worth a conversation if you are a married couple buying jointly, you have a strong, tested plan for selling quickly, and you have the cash to carry 20% ABSD while you wait. It is a narrower path, and it needs more checking, not less.
If you are a single buyer, a widow or widower, or you are thinking about decoupling, the rules are different again. Please speak to someone before you sign anything.
Hope is not a plan. If you buy first, know exactly how you will pay the 20% and exactly when your HDB will sell.
A buyer who cannot get approved can take months off your timeline. Insist on the letter before you accept.
You fall in love with units you cannot finance. Get your bank’s In-Principle Approval first, so every viewing is a realistic one.
Book your contractor early and keep the timeline honest. If the renovation runs long, you will pay for it in rent and stress.
If you would like to see the numbers behind this plan, read How Much Cash Do You Really Get After Selling Your HDB? and How HDB Upgraders Avoid Paying 20% ABSD next.
Tell me where you stand: your HDB, your loan, your CPF and the kind of condo you have in mind. I will map out the timeline and tell you honestly which route makes sense. It is free and there is no obligation.
A well-established name in the real estate industry, June Ling is a two-time Rising Millionaire (2024, 2025) with a proven track record of transacting over S$80 million in real estate. She began her career as the company-wide Top Rookie of the Year in 2023 and has since built and led a high-performing team.
Renowned for her strategic insight, market clarity, and disciplined execution, June advises clients across private residential, HDB, and co-living investments. Her approach goes beyond transactions, focusing on structuring decisions that align with long-term wealth objectives. Whether guiding homeowners, investors, or first-time buyers, June delivers clear, data-driven advice and seamless execution across every stage of the process.
It can work for married couples who buy jointly, where at least one is a Singapore citizen and the HDB is sold within the window IRAS allows. But you pay 20% ABSD in cash first and only get it back if every condition is met. I only do it with a clear, tested plan.
A typical timeline from listing your HDB to getting the condo keys is about 4 to 4.5 months. Your own timeline depends on your buyer, HDB approval and the condo’s completion period.
Usually yes, for up to 3 months after completion, under HDB’s temporary extension of stay. It needs your buyer’s agreement and HDB’s approval, and should be agreed before the resale application is submitted.
If your HDB sale has completed before your condo purchase, the condo is generally treated as your first property, so there is no ABSD for a Singapore citizen. Your lawyer will confirm this against your actual dates.
It is a bank’s indication of how much it is willing to lend you, based on your income and debts. It is not final, but it tells you your real ceiling before you start viewing.
If you sold first, there is no issue. If you bought first and are relying on the ABSD refund, the refund is lost when the conditions are not met, and IRAS does not extend the deadline. That is the risk of buying first.
Known for her personalized approach and deep market knowledge, June is committed to providing exceptional service and ensuring successful transactions for every client.
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