6.66% There, 1.4% Here: The Number That Actually Sizes Your Singapore Home Loan Is 4.00%

US 30-year mortgages are stuck above 6.5%, but Singapore borrowers are quoted fixed packages from around 1.4% — and neither figure decides how much a bank will lend you.

Freddie Mac put the average US 30-year fixed mortgage at 6.66 per cent in late August, up a hair from 6.65 per cent a week earlier and above 6.5 per cent since July. A Singapore borrower walking into a bank the same week could be quoted a fixed package starting from roughly 1.4 per cent. Both numbers are real. Only one of them has anything to do with what you can borrow here — and it is neither.

The headline that travels badly

Every time the US mortgage number moves, it gets read in Singapore as a signal about local borrowing costs. It mostly isn't one. American home loans are 30-year fixed instruments priced off mortgage-backed securities and the 10-year Treasury yield — a long-end product with long-end problems.

Singapore mortgages are short. Fixed packages here typically lock for two or three years; floating packages reset off 1-month or 3-month Compounded SORA, an overnight cash benchmark published daily by the Monetary Authority of Singapore. A tick in the US 30-year does not mechanically set the price of an overnight interbank rate in Singapore dollars.

There is a second structural gap. MAS does not run a policy interest rate at all — it manages the exchange rate through the S$NEER policy band, and domestic SGD rates fall out of that plus local liquidity conditions. The transmission from Washington to a Tampines refinancing is real but indirect, and it runs through global yields and capital flows rather than through Freddie Mac's weekly print.

What the local numbers actually look like

Compounded 3-month SORA has settled roughly in the 1.1 to 1.4 per cent range, down hard from a 2023 peak near 3.76 per cent. Bank fixed-rate packages have repriced into the region of 1.4 to 1.8 per cent. Floating loans, priced as Compounded SORA plus a spread that has historically run between about 0.20 and 0.80 percentage points, land all-in somewhere around 1.8 to 2.1 per cent.

Put those beside 6.66 per cent and the divergence is almost comic. A Singapore borrower is paying roughly a quarter of what an American buyer of an equivalently priced home pays in interest — on a market with far stricter loan sizing rules.

That is the first useful correction. The US number is a story about American affordability, where new single-family home sales fell 10.5 per cent in July to a 607,000 annual rate, a six-month low. It is not a forecast for your repricing letter.

The rate that sizes your loan is 4.00 per cent

Here is the part borrowers keep missing. Whatever headline rate a bank advertises, MAS requires that residential mortgage affordability be assessed at a floor of 4.00 per cent per annum — or the contract rate, whichever is higher. Your loan quantum is calculated at 4 per cent even if you are paying 1.5 per cent.

Layered on that: Total Debt Servicing Ratio capped at 55 per cent of gross monthly income across all property loans, and a Mortgage Servicing Ratio of 30 per cent for HDB flats and executive condominiums.

Waiting for cheaper rates to unlock a bigger loan is a category error. Banks size your borrowing at a mandated 4.00 per cent floor — so a SORA drop cuts your monthly payment, not your maximum quantum.

This is why the "pent-up demand" logic that applies in America does not port over. In the US, an economist at Capital Economics noted that rates falling towards 5 per cent could release meaningful pent-up demand, while adding it is unclear what drives them that low. In Singapore, the binding constraint on a first-timer's budget was never the headline rate. It is the stress test, and the stress test does not move with the market.

Falling rates in Singapore change your cash flow. They do not change your ceiling. That ceiling was set at 4 per cent by regulation, and no Fed decision touches it.

The HDB loan is now the expensive option — with a catch

The HDB concessionary loan sits at 2.60 per cent, pegged 0.10 percentage points above the CPF Ordinary Account rate of 2.50 per cent. For most of the last two decades that was the cheap, safe money. It isn't any more. Bank fixed packages at 1.4 to 1.8 per cent are meaningfully below it.

That spread is the single most actionable number for flat buyers right now, and it argues for at least running the bank comparison rather than defaulting to HDB out of habit.

But the comparison is not purely about rate. Two things push back:

• The LTV limit for HDB housing loans was cut from 80 to 75 per cent under cooling measures from MND and HDB, aligning it with commercial bank thresholds — so the old financing advantage of the HDB loan has narrowed too.
• The 2.60 per cent rate is fixed for the life of the loan. A bank package at 1.5 per cent is fixed for two or three years, after which you are back in the market. Buyers who cannot stomach a repricing cycle are paying 1.1 percentage points a year for certainty — an expensive but legitimate purchase.

Meanwhile, the Enhanced CPF Housing Grant now runs up to S$120,000 for eligible first-timer families and up to S$60,000 for singles. For lower- and middle-income buyers, that grant quantum shifts the affordability maths far more than a 20-basis-point move in SORA ever will.

Fixed or floating, when the two have nearly converged

The classic trade — pay a premium for fixed, or ride floating and hope — has thinned out. With fixed packages at 1.4 to 1.8 per cent and floating all-in around 1.8 to 2.1 per cent, the two sit close enough that the decision is now about structure, not about who is right on rates.

Rate strategists at the local banks have been consistent on the direction of travel. Eugene Leow of DBS has argued that US policy transmits to SGD rates through calibrated rather than aggressive adjustment, with sticky inflation and trade frictions keeping SORA relief gradual. Selena Ling of OCBC has similarly framed the global easing cycle as incremental, with domestic floating benchmarks adjusting in phases.

Two structural facts reinforce that. First, SGD interbank rates have long traded at a discount to US dollar rates because of currency strength — and that discount is already compressed, which limits how much further SORA can fall without aggressive global easing. Second, banks price floating loans as SORA plus a spread, and spreads are managed to protect net interest margins. If the benchmark drifts down, the spread can drift up. The all-in rate is stickier than the benchmark.

The practical read: borrowers rolling off peak-era packages from the 3.5 to 4 per cent years should be refinancing on the arithmetic available today, not the arithmetic they hope for in a year. And where fixed and floating are near parity, features — free conversion, repricing terms, lock-in length — are worth more than 10 basis points on the headline.

Cheap money has not produced a price surge — and that is the tell

If low rates drove Singapore prices, the last few quarters would look very different. URA data has private residential prices up 0.5 per cent quarter-on-quarter in Q2, moderating from 0.9 per cent in Q1, for cumulative first-half growth of 1.4 per cent. That follows 3.9 per cent for 2024, itself down from 6.8 per cent in 2023 and 8.6 per cent in 2022.

The internals are not uniform. Non-landed prices in the Core Central Region rose 1.8 per cent in Q2, while the Rest of Central Region fell 1.2 per cent and the Outside Central Region slipped 0.1 per cent. Landed rebounded 2.5 per cent. Public housing has stabilised too: the HDB Resale Price Index has posted slight quarterly contractions of 0.1 to 0.3 per cent, with about 12,681 resale transactions in the first half and 491 million-dollar flats in Q2 alone.

Supply explains part of the discipline. The GLS Confirmed List released 9,320 private units for the full year, over 50 per cent above the 10-year annual average, against a medium-term completion pipeline of roughly 60,600 private units including ECs. Rates are low; inventory is not scarce.

Demand, meanwhile, is almost entirely domestic. Citizens and permanent residents accounted for 98.3 per cent of new non-landed private transactions in the first half, a direct consequence of ABSD at 60 per cent for foreigners and 20 per cent for citizens buying a second home. This is an owner-occupier market operating under a 4 per cent stress test. It does not lurch on rate headlines.

What to watch instead of Freddie Mac

If you are buying, refinancing or holding, the relevant dashboard is local. Four items, in rough order of usefulness:

• The MAS Monetary Policy Statement — specifically the slope and width of the S$NEER band, which is the closest thing Singapore has to a rate decision.
• The 1-month versus 3-month Compounded SORA spread, which determines whether a fast reset or a smoothed one suits your cash flow.
• The gap between bank packages and the 2.60 per cent HDB rate, which decides the refinancing economics for flat owners.
• URA's price index and unsold inventory against developer take-up, which tells you whether end-user demand is holding independently of financing costs.

The risks cut both ways. Lock a fixed rate now and you may be stranded above market if global easing accelerates. Stay floating and you carry geopolitical and inflation risk directly. Investors face a third problem: with completions ramping up and rental growth softening, net yields can compress faster than borrowing costs fall.

What has not happened, and is worth saying plainly, is distress. The combination of TDSR, LTV limits and the 4 per cent stress test meant Singapore rode a rate cycle from sub-1 per cent to 3.76 per cent SORA and back without a wave of forced sales. That was the point of the guardrails. They cost buyers borrowing capacity on the way up — and they are still costing it now, on the way down.