Guide · Upgrading from HDB

Is sell 1 buy 2 dead? Why HDB upgraders should rethink it

By Melissa Chan · From my YouTube video of 19 October 2026 · Updated 22 October 2026

Sell 1 buy 2 is dead, or at least the version you've been sold. I ran the numbers on a four-year hold for an HDB family in 2026, line by line, and what I found isn't what most agents will tell you. As a passive income plan, it no longer works. As a bet on property prices, it can still work for a small group of families. For everyone else, there's a better move that leaves you with over $200,000 more in the bank from day one.

Prefer to watch? This guide follows the video, with every number laid out in tables.

The pitch, in case you haven't heard it

Your HDB flat reaches its MOP, the minimum occupation period: the five years you must live in it before you can sell. Say you sell it for about $700,000, and use the cash to buy two condos:

• a 3-bedroom at $1.6 million in the husband's name, which you live in, and
• a 2-bedroom at $1.2 million in the wife's name, which you rent out.

Why two names? Because if each of you owns only one property, neither of you pays ABSD, the additional buyer's stamp duty that a Singapore Citizen normally pays on a second home (20%). The promise is that the tenant pays your mortgage, and one day you'll own two paid-up properties.

Why you're hearing it now

This pitch is everywhere right now because so many flats are reaching MOP. In 2025 about 7,000 flats reached MOP. This year it's about 13,500, nearly double, and more again are expected in 2027 and 2028: estimates range from about 15,000 to 19,000 flats in 2027 and about 19,500 to 21,000 in 2028. If your flat has just reached MOP, chances are somebody has already pitched you this at your dining table. Before you say yes, let's check whether the maths still works in 2026.

The test case

That's how the pitch usually goes: rent it out, and once the seller's stamp duty is over, take your profit and move on. So let's see what that profit really looks like.

Reason 1: the rent no longer covers the costs

Here are four years of owning the rental unit, line by line.

Of the mortgage, about $61,500 is interest, money that is gone for good. The other $93,900 is principal, which pays down your loan. Keep that number in mind; we'll come back to it.

Over the four years, you pay about $36,500 more than the rent brings in: about $761 a month out of your own pocket. If interest rates go up to 2.5%, that's over $1,000 a month. This is not passive income. If anyone tells you the tenant will pay for everything, they aren't giving you the full picture.

The property tax most people underestimate

IRAS taxes you on the unit's annual value, which is roughly a year's rent: here, $48,000. If you don't live in the unit, you pay the non-owner-occupier rates, and the gap is big.

That gap alone is about $500 a month.

Why it isn't completely dead

Remember the $93,900? Over four years you pay about $155,000 in mortgage instalments. About $61,500 of that goes to interest, but the other $93,900 is principal. That isn't a cost: it's money paying down your own loan. You borrowed $900,000, and after four years you owe about $806,100. Think of it as a savings account your tenant tops up for you every month. That's the part people forget when they say property doesn't make sense any more.

To judge the return properly, measure it against the cash you actually put in, not the $1.2 million price tag. For this unit that's about $347,600: the $300,000 down payment plus about $47,600 in stamp duty, legal fees and a small renovation to get it ready for a tenant.

Reason 2: it only works as a bet on prices

Nobody can tell you what prices will do, so here is what you make on the rental unit if you sell after four years, in four scenarios:

Flat prices mean four years of being a landlord, chasing rent and fixing aircons, and you end up poorer. So instead of guessing, ask yourself one question: will this unit sell for more than $1.217 million in four years' time? That's your breakeven. Below it, you lose money.

Where the −$16,000 comes from

Take the flat-price scenario first, because it's the one that surprises people.

Here's what that −$16,000 means. Your down payment comes back to you, because the price hasn't changed. You get back the $93,900 of principal too, as a smaller loan to repay when you sell. What hurts are the costs you never get back: $36,500 in top-ups, plus about $73,800 in buying and selling costs (the agent's $26,160 commission, your stamp duty, legal fees and small renovation). Put together: +$93,900 − $36,500 − $73,800 leaves you about $16,000 short. After four years as a landlord, you'd have been better off not buying a second unit at all.

The other scenarios follow the same steps. The only thing that changes is the sale price: the costs barely move. So sell 1 buy 2 is really a leveraged bet on property prices, with the tenant subsidising your holding costs. It was never meant to be an income stream, and if you go in thinking it is, you'll panic the first month the unit sits empty.

Reason 3: your tenants will have more choice

The MOP wave won't crash prices. Every family that sells an MOP flat still needs a home, and many of them become condo buyers or condo tenants. OCR condo prices still rose about 2.2% last quarter.

But not every owner whose flat reaches MOP will sell. Some will keep their flat and rent it out, or keep living in it. With about 13,500 flats reaching MOP this year and around 20,000 a year by 2028, more HDB flats could come up for rent, and that's more competition for your tenant. You may not get your asking rent as easily, and empty months can stretch. That's exactly why my numbers already assume some vacancy.

My take: buy one larger home instead

I'm not sitting on the fence. For most HDB upgraders in 2026, don't split your money across two condos. Combine your firepower and buy one larger family home instead. Same couple, same cash: instead of a $1.6 million home plus a $1.2 million rental, you put it into one home of about $2 million that you live in.

Where your cash goes on day one

I've assumed every home needs only light renovation, so the renovation budgets are kept small.

You might be thinking: the HDB flat only sold for $700,000. After paying off what's left of the HDB loan, part of the proceeds comes back as cash and part goes back into CPF, so the rest of that $815,000 has to come from savings. Two condos assume a couple who has already saved quite a bit. If you haven't, this strategy doesn't even work, and it would be a huge stretch for you.

The monthly cost

While the tenant is paying, two condos cost you a little less each month: about $300 less than the family home. But once the tenant leaves, you're paying both mortgages, plus maintenance and property tax on an empty unit: about $8,600 a month.

This is where the cash buffer really matters. The two-condo family used up all $815,000 of their cash and CPF on day one. If the tenant leaves, or one of them loses their job, that $8,600 comes out of their salaries or savings, with nothing left from the sale to fall back on. The one-home family still has about $222,000 in the bank or CPF: enough to cover their mortgage of about $5,400 for 41 months, about three and a half years. That's peace of mind if something goes wrong. And with one home there's no tenant, one mortgage instead of two, no vacancy risk and no non-owner-occupier property tax, and you get the bigger home your family is growing into.

After four years: who comes out ahead?

• If prices stay flat, the one-home family is about $30,000 better off.
• If prices grow 2% a year, the two-condo family is about $34,000 ahead.

So two condos win only if prices rise. But that extra $34,000 comes entirely from one thing: selling the small 2-bedroom for more than you paid, and that's the riskiest part of the whole plan. Think about who buys a 2-bedroom in four years' time: mostly investors. Investors buy when the rental numbers make sense, and as we've just seen, they don't right now: you still have to top up every month. That's why small units can be much harder to sell at a good price, while a larger family home has a big pool of buyers: upgraders and families who actually want to live there.

For about $34,000 of possible upside, you take on two mortgages, a tenant to manage, zero cash buffer and a resale bet on the riskiest type of unit. For most families, that's not worth it. One larger home is the safer way to grow your wealth.

Who should still do sell 1 buy 2

Only families who pass all four of these:

1. A 12-month buffer. Enough cash for both mortgages, maintenance, both property taxes and your living costs for a full year, with no tenant and one income gone.
2. The power to hold past four years. If prices are flat when the seller's stamp duty period ends, you must be able to wait, not sell at a loss.
3. Top up at least $1,000 a month without stress. Not $760: plan for interest rates going up, not just today's rate.
4. Two stable incomes. If one of you is planning a career break, a business or a baby, the maths changes very fast.

If you pass all four, and you pick a rental unit that's genuinely easy to rent, two condos can make sense. If you fail even one, combine and buy one larger family home, and buy it well.

The verdict, and the red flag

So is sell 1 buy 2 dead? As default advice for every MOP family, yes. It's only alive for the few who can survive the bad years.

And if an agent pushes you towards two properties without ever asking about your buffer, your job security or how long you plan to hold, that's your red flag.

If you're going the one-larger-home route, choosing that home has its own rules, and there are guidelines I always follow when I advise my clients. If you'd like me to run these numbers on your own flat and plans, drop me a message.

Questions people ask me

Is sell 1 buy 2 still worth it in 2026?

As a passive income plan, no. In my test case, a $1.2 million 2-bedroom with a $900,000 loan at 1.8%, the rent leaves you about $761 a month short, and if prices stay flat for four years you lose about $16,000. It only pays off if prices rise, so it suits only families who pass all four checks in the checklist above.

Why do couples buy the two condos in separate names?

So that neither of them owns two properties. A Singapore Citizen pays 20% ABSD on a second home; if each spouse owns one, neither pays it.

How much property tax do I pay on a rented-out condo?

More than on the home you live in. On an annual value of $48,000, about a year's rent, a rented-out unit pays about $7,440 a year at the non-owner-occupier rates, against about $1,600 if you lived in it: a gap of about $500 a month.

What price do I need to sell at to break even?

In my test case, about $1.217 million after four years on a unit bought at $1.2 million, once you count the agent's commission, the stamp duty and fees you paid when buying, and the monthly top-ups.

Is one bigger home always better than two condos?

Not always. If prices rise about 2% a year, two condos came out about $34,000 ahead in my numbers. But that gain depends on reselling a small 2-bedroom to investors, and it comes with two mortgages and no cash buffer. With one $2 million home, the same couple keeps about $222,000 in cash or CPF and pays one mortgage.

Related guides

• Why 48,000 HDB owners are about to change the market.
• HDB prices are slowing. When should you sell?.
• Bigger unit or better location: which made more profit?.
• Your property might appreciate. But can you sell it later?.
• Don't buy the wrong unit type: how to pick the profitable one.

All figures are from my video of 19 October 2026: a worked example with illustrative projections, not guarantees. The mortgage figures assume a 30-year loan at 1.8% (2.5% where stated); stamp duty is the buyer's stamp duty for each price, and property tax is at IRAS's residential rates for owner-occupiers and non-owner-occupiers. Flats reaching MOP: HDB and industry estimates. Your own numbers will differ, so get advice on your own finances before you decide. This guide is general information, not financial advice.