Erica Sham
Singapore's HDB resale market is busy. There were 7,645 resale transactions in the third quarter of 2026, up 19.5% from 6,396 in the second quarter (Channel NewsAsia). If you are planning to move out of your flat, one of the first decisions has nothing to do with which home you want. Do you buy the next one first and sell your flat afterwards, or sell first and buy afterwards? The order decides how much you can borrow, how much cash you need upfront, and whether you pay a tax you then have to claim back.
For most people there is no single right order. It depends on whether the borrowing rules let you carry two homes at once, and on how easily your flat will sell. If your flat has less than 50 years of lease left, we would sell first, even though it probably means finding a temporary place to stay.
This guide is for HDB owners moving to another HDB resale flat or to a private home, with a bank loan or an HDB loan.
If you can afford both, buying first looks obvious. You move once and pay no rent in between.
That logic holds only if two things are true. The borrowing rules have to let you hold both homes at the same time, and you have to be able to sell your old flat when you want to, at the price you want.
Before the order is a real choice, check whether a lender would give you the money while you still own your flat.
Two limits decide this. TDSR, the Total Debt Servicing Ratio, caps how much of your monthly income can go towards all your loan repayments put together, including car and personal loans. MSR, the Mortgage Servicing Ratio, is a second and tighter cap that applies when you are buying an HDB flat, and it looks only at your home loan repayments. Both of them count the loan still sitting on your current flat. Until that flat is sold and the loan is cleared, it uses up part of your room.
The cash you need upfront changes too. If you still have an outstanding home loan when you take the next one, the limits on how much you can borrow are tighter, and more of the downpayment has to come from cash rather than CPF, the savings taken out of your salary each month, part of which can go towards a home. Work out that cash figure before you commit to buying first.
So the first question is whether you can pay the downpayment on the next home and service both loans at the same time, inside TDSR and MSR. If the answer is no, selling first is the only order open to you.
If you can carry both, there is still a deadline attached.
In the gap between the two deals, you own two homes. That is why ABSD, the Additional Buyer's Stamp Duty, an extra tax charged when you buy a residential property while you already own one, applies whether your next home is another HDB resale flat or a private one. You pay it at the point of purchase.
Sell your existing flat within six months of buying the next one and you can claim the full ABSD amount back. Miss that window and none of it comes back.
The rate depends on your profile and changes with policy, and so do the refund conditions. Check both with IRAS, the Inland Revenue Authority of Singapore, the tax office that collects it: ask what you would pay, and whether you meet the conditions for getting it back. Until your old flat is sold, that money sits with IRAS.
HDB may also set its own conditions, including on timing, when you hold two properties. Ask HDB directly. Don't assume its timing matches the six months for ABSD.
While you hold both homes, your money is stretched. You are paying two loans each month, your ABSD refund is still with IRAS, and the CPF you used for the old flat is still locked in it. A sale that drags on makes all of that last longer.
Selling first means you know exactly what your old flat fetched before you commit to the next home. Your budget is a known number, your old loan is cleared so it no longer eats into your TDSR and MSR room, and there is no tax deadline pushing you to accept a lower offer.
Selling first also settles one number early: what you walk away with. When you sell, the CPF you used to buy your current flat goes back into your CPF account, along with the interest that money would have earned had you left it there. What is left after your outstanding loan is repaid is the cash you have for the next home.
You will probably need somewhere to live in between. That can mean rent, a second move, storage, or a stretch with family.
Prices can also move while you are out of the market, and you may be renting for longer than you planned while you look.
Buying first has its own risk: if the sale is slow, you may have to cut your price to meet the six-month deadline.
However, with a lease this short the case is slightly different, and this is where we would stop weighing the two orders and sell first.
Two rules decide how much CPF money a buyer can put into your flat. First, for full use of their CPF, the remaining lease (the number of years left before the lease runs out) has to cover the youngest buyer until they turn 95. Second, once a flat's remaining lease drops below 60 years, the amount a buyer can use is pro-rated or capped. Pro-rated means the sum is scaled down according to their age and your remaining lease. Capped means there is a ceiling on it, however much they have saved.
How much a buyer loses depends on their age and your exact lease, and the CPF Board works it out for each buyer.
Take a flat with 49 years of lease left. A buyer aged 35 would need 60 years for the lease to cover them to 95, so they are 11 years short and can use only part of their CPF. Whatever they cannot pay with CPF, they have to pay in cash on top of their deposit. A buyer aged 46 needs 49 years to reach 95, so the same flat covers them.
The 60-year rule applies to both, so even the older buyer should get their own figure from the CPF Board before committing. The younger your buyer, the larger the cash sum they have to find. That is likely to leave fewer buyers who can meet your asking price than for a flat with a longer lease.
So with a lease this short, we would not start a six-month tax deadline on a sale whose timing no one can predict, while carrying two loans.
Our advice to sell first changes if your likely buyers are older, in their late 40s or 50s: your lease may still cover them to 95, and the CPF limit bites less. It also changes if you have no realistic place to stay in between, where the cost of selling first may outweigh the risk of buying first.
If you're weighing up which to do first, Cashew can look at your case and answer your questions as an unbiased broker.
HDB launched 7,964 BTO flats across seven projects on 4 November 2026, with applications open until 11 November, and about 4,300 more flats are planned for February 2027 in Bishan, Tampines, Tengah and Toa Payoh. Buyers should generally start with an HDB loan since it offers easier qualification and lower upfront cash, and can switch to a bank loan after key collection, but never back.
Choosing between an HDB concessionary loan and a bank loan isn't just about rate, since HDB's 2.6% rarely moves while bank rates swing widely, but the two products differ in cash needed upfront, lock-in penalties and reversibility. Bank loans usually cost less over a long tenure but require cash downpayment and lock-in periods, and once you switch from HDB to a bank you can never go back, so starting with HDB keeps both options open while starting with a bank closes the HDB door permanently.
Erica Sham·3 Nov 2026© 2026 Cashew. All rights reserved.
