Keep Your HDB and Buy a Condo? The Rules, the ABSD and Whether It's Worth It

“Keep the flat, rent it out, and buy a condo” is one of the most talked-about upgrade strategies in Singapore — the dream of a rental income stream and a nicer home. It is allowed, but it is not free: the moment you own two properties, the tax and financing rules change against you. Here is exactly what you can and cannot do, and whether the maths actually works.

The rule: MOP first, then you may own both

You must fulfil the MOP on your HDB flat — usually five years — before you can buy any private residential property. After that, there is no rule forcing you to sell the flat: you may own the HDB flat and a private property at the same time. (The reverse is stricter — a private-property owner buying a resale HDB flat generally must sell the private property within six months.) So the “keep and buy” route is genuinely open to HDB upgraders post-MOP.

The catch: ABSD on the condo

Because you are keeping the flat, the condo is your second property, and a Singapore citizen pays a steep ABSD on it — with no remission, since remission requires selling your first property. That is a large sum of cash you will never get back, paid on day one. If avoiding ABSD matters more than keeping the flat, you are really looking at upgrading by selling first, not keeping both. Decide which you are optimising for before you fall for a unit.

The financing squeeze

A second housing loan is capped at a lower loan-to-value ratio, so you need a bigger downpayment, and TDSR still limits your total debt to 55% of income — counting both mortgages if the flat is not fully paid. Many would-be “keepers” discover the bank will not lend enough to hold two properties at once. Run the loan sums before you assume the strategy is available to you.

Does the rental actually pay?

The case rests on the flat’s rent beating its holding cost — property tax at the higher non-owner-occupied rate, any remaining mortgage, maintenance, agent fees and vacancy. HDB flats often rent at a respectable yield because they are cheap to buy relative to rent, but the net figure is lower than the headline. And the flat keeps ageing: its remaining lease runs down whether or not a tenant is in it, which caps its future resale pool. A well-connected flat near an MRT and hawker centre rents and holds value best — check where yours sits on the block rankings.

When it makes sense — and when to just sell

Keeping makes sense if you can fund the condo without the flat’s proceeds, the ABSD does not wreck your returns, and the flat is a strong, rentable, still-long-lease asset. For most upgraders, the cleaner move is to sell the flat, skip the ABSD, and put the CPF refund and cash into a better home — the sell-first upgrade. Treat “keep and rent” as an investment decision on its own merits, not a way to avoid saying goodbye to your first home.

Figures on this page are computed from the current snapshot and update each rebuild. Contains information from data.gov.sg (Singapore Open Data Licence) and OneMap, Singapore Land Authority. This is general information for research, not financial or professional advice.