Singapore homeowners have rarely had a more obvious reason to revisit their mortgages.
After the interest-rate shock of 2022-2024, the benchmark underpinning floating-rate home loans has fallen dramatically. By mid-2026, compounded SORA rates had moved close to the 1% level, while banks were again competing aggressively for refinancing customers.
Some floating packages are now being advertised at around 1.3%-1.4% all-in, depending on the SORA benchmark, spread, loan size and promotional package.
That sounds like an obvious opportunity.
Why continue paying 2%, 2.5% or even 3% on an existing mortgage when a bank may offer something substantially cheaper?
But there is a catch.
The headline mortgage rate is not the same thing as the cost of refinancing.
A homeowner needs to account for lock-in penalties, legal fees, valuation fees, subsidies, clawbacks and the possibility that the new rate eventually rises.
For some borrowers, refinancing could save tens of thousands of dollars.
For others, the mathematically correct decision could be to do absolutely nothing.
And there is one particularly important group for whom the decision is fundamentally different: HDB borrowers considering switching from the HDB concessionary loan to a bank mortgage.
Once they make that switch, they cannot simply go back to an HDB concessionary loan.
So, as SORA approaches the 1% level, the right question is not:
“How low is the mortgage rate?”
It is:
“How much will I actually save after all the switching costs and risks?”
First, a reality check on the “SORA below 1%” story
The first thing homeowners should understand is that there are several different SORA numbers.
SORA itself is the overnight benchmark. Banks commonly reference 1-month or 3-month compounded SORA in floating-rate mortgage packages.
Recent data show the benchmarks moving around the 1%-1.2% region.
For example, the 3-month compounded SORA was around 1.16% in late July 2026, while the 1-month compounded SORA was around 1.21%. (Mortgage Titan)
That means the idea that “SORA is near 1%” is broadly directionally correct.
But there is an important nuance: 1-month SORA has not consistently been below 3-month SORA.
In late July, the 1-month compounded rate was actually higher than the 3-month rate. (Mortgage Titan)
This matters because homeowners should not choose a mortgage package simply because its advertised reference rate is currently lower.
The relevant calculation is:
Your mortgage rate = SORA + bank spread.
A package at 3M SORA + 0.70% could be more attractive than a package at 1M SORA + 0.80%, depending on the prevailing benchmarks and how each package resets.
And the spread is arguably just as important as SORA.
What banks are actually offering
The current mortgage market illustrates why borrowers should shop around.
UOB, for example, currently advertises a promotional package at 3M Compounded SORA + 0.70% for the first two years, rising to +0.80% in year three and +1.00% thereafter, subject to its conditions and minimum loan size. (United Overseas Bank)
OCBC’s refinancing page similarly highlights repricing as a way for existing customers to potentially reduce interest costs, while noting that refinancing with another bank can involve legal and valuation fees.
Other banks are also competing aggressively. Standard Chartered, for example, publishes a 3M Compounded SORA + 1.00% package with a two-year lock-in, while Maybank has advertised packages based on 1M Compounded SORA. (Standard Chartered Bank)
These are not necessarily the best offers every homeowner will receive.
Rates are subject to change, minimum loan amounts and borrower/property-specific conditions.
But they demonstrate the key point:
The spread over SORA has become small enough that refinancing can create meaningful savings for borrowers currently paying materially higher rates.
The HDB loan comparison is surprisingly different
For HDB owners, there is another benchmark to consider.
The HDB concessionary housing loan rate remains 2.6% per annum for Q3 2026. It is pegged at 0.1 percentage point above the prevailing CPF Ordinary Account interest rate. (HDB)
That makes the current environment unusual.
A bank mortgage around 1.3%-1.5% could be more than one percentage point cheaper than an HDB loan.
On paper, that looks compelling.
But HDB borrowers have something bank borrowers generally do not:
certainty.
The HDB concessionary rate does not move with SORA.
It is linked to the CPF OA rate framework.
So an HDB borrower effectively has a government-linked fixed benchmark of 2.6%, while a borrower switching to a SORA package is accepting floating-rate risk.
The decision therefore isn’t simply:
2.6% versus 1.4%.
It is:
2.6% with greater certainty versus perhaps 1.4% today but potentially higher rates later.
That is a very different investment decision.
The real refinancing calculation starts with the break-even point
Suppose you have a S$500,000 outstanding mortgage.
Your existing rate is 2.6%.
You can refinance into a package that costs approximately 1.4%.
The headline difference is:
2.6% – 1.4% = 1.2 percentage points.
Ignoring amortisation for simplicity, the first-year interest difference on S$500,000 would be roughly:
S$500,000 × 1.2% = S$6,000.
That sounds attractive.
But suppose refinancing costs you S$3,000 in legal and valuation expenses and another S$5,000 in penalties or clawbacks.
Your total switching cost is S$8,000.
At S$6,000 of first-year gross interest savings, you have not even broken even after 12 months.
Your approximate break-even period is:
S$8,000 ÷ S$6,000 = 1.33 years.
That is before considering the fact that your outstanding principal gradually falls.
The actual break-even period will therefore be somewhat longer.
This is why the correct question is not:
“How much lower is the new rate?”
It is:
“How long will I need to keep the new mortgage before the cumulative interest savings exceed every cost of switching?”
Example 1: A refinancing decision that clearly works
Consider a homeowner with:
- Outstanding loan: S$800,000
- Existing rate: 2.6%
- New rate: 1.4%
- Remaining tenure: 20 years
- Switching costs: S$3,000
- No lock-in penalty
Using a standard amortising-loan calculation, a S$800,000 loan over 20 years would have an indicative monthly instalment of around S$4,278 at 2.6%, versus about S$3,824 at 1.4%.
That is a difference of roughly S$454 a month.
Over the first year, that is approximately S$5,450 in lower scheduled payments.
With only S$3,000 of switching costs, the homeowner could potentially recover the switching expense in well under a year on a simple cash-flow basis.
This is the kind of borrower for whom refinancing deserves serious consideration.
The loan is large.
The rate difference is meaningful.
The remaining tenure is long.
And there is no large penalty.
Example 2: A smaller loan changes the equation
Now consider a homeowner with:
- Outstanding loan: S$300,000
- Existing rate: 2.6%
- New rate: 1.4%
- Remaining tenure: 20 years
- Switching costs: S$3,000
The indicative monthly repayment falls from approximately S$1,604 to S$1,434.
That is only about S$170 per month.
The annual cash-flow difference is roughly S$2,040.
At S$3,000 of switching costs, the homeowner needs substantially longer to recover the expense.
And if the homeowner is nearing the end of the mortgage anyway, the case becomes weaker still.
This explains why the same mortgage rate can be an excellent deal for one household and a poor deal for another.
Loan size matters enormously.
The hidden killer: lock-in penalties
The biggest obstacle to refinancing is often not legal fees.
It is the lock-in.
A bank may charge a penalty if you fully redeem the mortgage during the lock-in period.
This can be around 1.5% of the outstanding loan for some packages, although actual terms vary by bank and package.
On an S$800,000 mortgage, a 1.5% penalty would be:
S$12,000.
Suddenly, the economics change dramatically.
If your annual interest saving is S$5,000-S$6,000, you may need two or more years just to recover the penalty.
And if your new mortgage comes with another two-year lock-in, you have effectively exchanged one restriction for another.
This is why homeowners should never compare mortgages purely by headline rates.
They should compare the all-in cost over the period they realistically expect to hold the loan.
Repricing may be better than refinancing
This is one of the most underappreciated options.
There are three broad choices:
Stay put: Do nothing.
Reprice: Move to a different mortgage package with the same bank.
Refinance: Move the mortgage to another bank.
Repricing can be particularly attractive because it may involve fewer costs.
OCBC explicitly distinguishes repricing from refinancing and notes that its existing customers may potentially save interest by switching packages. Its online repricing process can avoid legal and valuation fees that may arise when refinancing with another bank.
The best strategy may therefore be:
First ask your existing bank what it will offer you.
Then compare that with external refinancing packages.
Do not assume that moving banks automatically produces the best result.
The “free legal subsidy” is not really free
Banks often offer legal subsidies or valuation subsidies to attract refinancing customers.
These can materially reduce the upfront cost.
But homeowners should read the conditions.
There may be:
- a minimum loan size;
- a minimum lock-in period;
- clawbacks if the loan is redeemed early;
- restrictions on selling the property;
- valuation conditions;
- or administrative fees.
The relevant number is therefore not:
“Legal fee subsidy: S$2,500.”
It is:
“Net switching cost after all subsidies and conditions.”
If a bank pays S$2,500 of your legal fees but requires you to remain locked in for two years, that benefit has an economic cost.
The most important HDB warning: switching back is not an option
This deserves special emphasis.
An HDB homeowner with a concessionary HDB loan should not treat refinancing as a temporary tactical move.
If you switch from an HDB concessionary loan to a bank loan, you should assume that you are making a one-way decision.
The appeal is obvious.
At 1.4%, a bank mortgage is currently far below the 2.6% HDB concessionary rate.
But the HDB loan’s value becomes clearer if rates rise again.
Suppose your bank loan begins at 1.4%.
If SORA rises by 1 percentage point and the bank spread remains unchanged, the mortgage could move to roughly 2.4%.
If SORA rises by 1.5 percentage points, you could be around 2.9%.
At that point, the HDB loan would have looked much more attractive.
That is the option value HDB borrowers are giving up.
What about homeowners already on a bank loan?
The calculation is easier.
You are already exposed to the private mortgage market.
If your existing bank loan is at 2.5%-3%, and another bank can offer something around 1.4%-1.6%, there is potentially a meaningful arbitrage opportunity.
But again, check the lock-in.
A homeowner who is already out of lock-in and has a S$1 million outstanding mortgage is in a particularly strong position.
At 2.6% versus 1.4%, the simple first-year interest difference is roughly S$12,000 before amortisation effects.
Even after S$3,000-S$5,000 of transaction costs, the potential savings can be substantial.
This is why large outstanding loans and long remaining tenures are the sweet spot for refinancing.
But should you refinance if SORA is already at the bottom?
This is the more difficult question.
The answer is: not necessarily.
If SORA is close to its cyclical low, the borrower has to consider the direction of rates.
Suppose you refinance today at:
3M SORA + 0.7%.
If 3M SORA is 1.16%, your initial rate is around 1.86%.
But if SORA rises to 1.5%, your rate becomes approximately 2.2%.
At 2%, it becomes 2.7%.
This means a borrower refinancing into a floating package is not locking in today’s low mortgage rate.
They are locking in the bank’s spread.
The SORA component remains variable.
That is an important distinction.
The better way to think about today’s mortgage opportunity
There are actually two separate bets.
Bet 1: Where will SORA go?
Bet 2: How low will the bank’s spread remain?
The second may be more important than borrowers realise.
Banks can compete aggressively for refinancing customers when they want to grow mortgage books.
But promotional spreads can change.
UOB’s current package, for example, starts at +0.70% before moving higher after the initial period. (United Overseas Bank)
So a borrower should model not only the first-year rate, but also the rate after the promotional period.
This is where many “lowest mortgage rate” comparisons become misleading.
Who should seriously consider refinancing now?
The strongest candidates are homeowners who fit several of these characteristics:
1. Your lock-in period has ended.
This removes one of the biggest switching costs.
2. Your outstanding loan is large.
The larger the mortgage, the more valuable a given percentage-point reduction becomes.
3. You have at least five to 10 years remaining.
A longer remaining tenure gives you more time to recover switching costs.
4. Your existing rate is materially above the current market.
A borrower at 2.8% has much more to gain than someone already paying 1.7%.
5. You can obtain a genuinely competitive spread.
Don’t compare against a theoretical SORA rate. Compare the actual package offered to you.
6. You are comfortable with floating-rate risk.
A lower initial rate is not free money.
Who should probably wait?
The case for waiting is stronger if:
- you are still within a costly lock-in period;
- your outstanding loan is small;
- your remaining tenure is short;
- your existing rate is already competitive;
- switching costs are high;
- you expect to sell the property soon;
- or you are an HDB borrower uncomfortable with giving up the concessionary loan permanently.
For these borrowers, a lower advertised rate may simply not generate enough savings to justify the hassle and risk.
The five-minute refinancing test
A homeowner can reduce the decision to five numbers.
A. Current outstanding loan
B. Current interest rate
C. New all-in interest rate
D. Total switching cost
E. Expected holding period
Then calculate:
Annual interest saving ≈ Outstanding loan × rate difference
Then:
Break-even period ≈ Total switching cost ÷ annual interest saving
It is only a rough first-pass calculation because mortgage balances decline over time.
But it immediately identifies whether you are looking at a potential S$10,000 opportunity or a S$500 one.
For example:
S$700,000 loan × 1 percentage-point saving = roughly S$7,000 of first-year gross interest difference.
If switching costs are S$2,000, the economics are compelling.
If switching costs are S$15,000, they are not.
That is the real maths behind the refinancing frenzy.
The bottom line: low SORA is an opportunity, not an instruction
Singapore’s mortgage market has entered a much more borrower-friendly phase.
SORA has fallen sharply from its post-2022 highs, and current floating packages are once again becoming highly competitive. Official bank offerings confirm that spreads around the 0.7%-1% range are available for qualifying borrowers and packages, although actual rates vary. (United Overseas Bank)
But homeowners should resist the temptation to turn this into a blanket recommendation to refinance.
The winners will be homeowners with:
large loans + high existing rates + long remaining tenures + expired lock-ins + low switching costs.
The losers could be homeowners with:
small loans + short remaining tenures + expensive penalties + imminent property sales + already-low rates.
And HDB borrowers face the most consequential decision of all.
At 2.6%, the HDB concessionary loan looks expensive compared with today’s bank mortgages.
But it comes with something today’s 1.4%-ish floating packages cannot promise:
certainty.
The smartest homeowner therefore does not ask whether SORA is “low”.
They ask whether the net present value of refinancing is positive after every cost and under several future interest-rate scenarios.
Because the difference between a good refinancing decision and a bad one may not be the mortgage rate.
It may be the S$10,000 lock-in penalty, the S$3,000 legal bill, the two-year lock-in, or the decision to give up an HDB loan that can never be recovered.
In other words:
Don’t refinance because rates are low. Refinance because the numbers still work after the fine print.