The HDB concessionary loan is the default for a reason. The rate has held at 2.6% for years, you can borrow up to 80% of the flat's value, and there is no penalty for early repayment. For most buyers staying put, that stability is worth more than chasing a lower rate.
But if you already know you are selling within a few years, the default starts to cost you. A fixed bank loan at around 1.65% can save an HDB seller over S$17,000 compared with the HDB rate, on a typical loan and exit timeline (Stacked Homes, June 2026). The gap is not theoretical. It is the difference between two rates compounding over the years you actually hold the loan.
Where the savings come from
The arithmetic is simple. On a S$400,000 loan, the difference between 1.65% and 2.6% is just under one percentage point of interest a year. In the early years of a mortgage, when your outstanding balance is highest, that gap does the most damage. If you sell in year three or four, almost all of what you have paid has gone to interest, so a lower rate over that window is where the money is.
This is the inverse of the usual advice. The HDB loan's strengths (no lock-in, no redemption penalty, you can switch to a bank loan later) matter most to people who stay. For a short holder, those strengths are insurance you never claim, and you pay for them in the form of a higher rate.
Why the sale waiver clause matters as much as the rate
Here is the catch that turns a good decision into a bad one. Most fixed bank loans carry a lock-in period, usually two to three years, with an early redemption penalty of around 1.5% of the outstanding amount if you repay before the lock-in ends. Sell during the lock-in without protection, and that penalty can erase the interest savings you were chasing.
The sale waiver clause is what protects you. It waives the early redemption penalty specifically when you are repaying because you sold the property, as opposed to refinancing to another bank. Not every package includes one, and the terms vary: some waive the penalty fully on a genuine sale, some require the sale to complete after a minimum period, some cap how much they waive.
So the real question is not "which rate is lower". It is "does this package let me exit on my timeline without a penalty that eats the savings". Get this wrong and the S$17,000 advantage becomes a loss.
What to check before you commit
If you have a firm exit plan, work through these in order:
- Your actual exit window. Be honest about when you will sell. A plan that is "maybe in a few years" is not firm enough to give up the HDB loan's flexibility.
- The lock-in period. Match it against your exit. A two-year lock-in is fine if you are selling in year three. It is a problem if your plans might bring the sale forward.
- Whether the package has a sale waiver clause, and its conditions. Confirm in writing that selling triggers the waiver, and check whether there is a minimum holding period before it applies.
- The full cost of switching. Bank loans involve legal and valuation fees, often a few thousand dollars, sometimes subsidised by the bank. Net these against the interest savings.
- Your LTV and cash position. A bank loan caps borrowing at 75% LTV against HDB's 80%, so you may need more cash or CPF upfront.
The honest version of the trade-off
The HDB loan is genuinely safer for someone whose plans are uncertain, because uncertainty is exactly what its flexibility covers. The reframing is not that the HDB loan is a mistake. It is that "safe" is doing a lot of quiet work in that sentence, and the safety is only valuable if you need it.
If you have a concrete reason to sell within your lock-in window (an upgrade timeline, a posting, a property you have already shortlisted) and you can secure a fixed package with a clean sale waiver clause, the bank loan is the cheaper choice by a margin that is hard to ignore.
If your timeline is genuinely open, take the flexibility and revisit the decision later. You can always refinance an HDB loan into a bank package; you cannot move the other way.
Sarah Chen
