Choosing the right mortgage structure is one of the most consequential financial decisions a Singapore property buyer makes. Pick the wrong package and you could pay thousands of dollars more in interest over a standard two-to-three-year lock-in cycle — or face stiff penalties if you need to sell or refinance before the clawback period expires. With 3-month MAS SORASORA hovering between 2.8% and 3.2% in early 2026 and banks competing aggressively on fixed-rate offers, the landscape has shifted meaningfully from the near-zero rate era of 2020–2021.
This guide explains every meaningful choice in Singapore mortgage structuring: fixed versus floating, bank loan versus HDB loan, how SORA is calculated and why it replaced SIBOR, lock-in and clawback mechanics, and a worked comparison of a S$1 million loan across two packages over five years. It closes with a strategy section matched to different buyer profiles and a checklist of triggers for refinancing.
Overview: The Singapore Mortgage Landscape in 2026
Singapore borrowers have three primary loan sources: licensed banks (including local banks DBS, OCBC, UOB and the major international lenders), the HDB Concessionary Loan (HDB flats only), and licensed moneylenders (not covered here). For private property, the choice is always a bank loan. For HDB flats, eligible buyers can choose between an HDB loan and a bank loan — a decision with long-term implications explored in depth below.
Bank mortgage packages cluster into three structures:
- Fixed-rate packages — the interest rate is contractually locked for a defined period (typically 2–3 years), after which it reverts to the bank’s floating rate.
- SORA-pegged floating packages — rate is calculated as the published 1-month or 3-month compounded SORA plus a spread set by the bank (typically 0.5%–1.0% above SORA).
- Board-rate (internal rate) packages — rate is a spread above the bank’s own internal mortgage board rate, which the bank can adjust at discretion. These are the least transparent and generally the package borrowers end up on after a lock-in period expires without refinancing.
Since SORA fully replaced SIBOR and SOR as the benchmark for Singapore retail mortgages from October 2024, new floating-rate packages are exclusively SORA-pegged. Existing SIBOR loans were migrated to SORA-equivalent packages by all major banks.
Fixed vs Floating: Side-by-Side Comparison
| Feature | Fixed Rate | SORA-Pegged Floating | Board Rate |
|---|---|---|---|
| Typical 2026 rate | 2.5%–3.5% p.a. (2–3 yr lock-in) | SORA + 0.5%–1.0% ≈ 3.3%–4.2% today | Bank board rate + 0%–0.3% |
| Rate certainty | Full certainty during lock-in period | Moves monthly/quarterly with SORA | Bank can change at any time |
| Typical lock-in period | 2–3 years | 1–2 years (some packages) | None after initial promo period |
| Clawback fee if exiting in lock-in | Typically 1.5% of outstanding loan | Typically 1.5% of outstanding loan | Usually none |
| Transparency | High — rate stated in contract | High — SORA published daily by MAS | Low — bank’s discretion |
| Best for | Buyers who want budgetary certainty | Buyers who can absorb rate movement | Rarely the best choice — avoid |
| Refinancing flexibility | Restricted until lock-in expires | More flexible (shorter or no lock-in) | Usually fully flexible |
| Legal subsidy on refinancing | Many banks offer S$1,800–S$2,500 subsidy | Many banks offer S$1,800–S$2,500 subsidy | N/A |
The core trade-off is simple: fixed rate gives certainty at a potential premium; SORA floating passes the risk of rate movement to you in exchange for a spread that may be lower than the fixed rate when SORA is falling. With 3M SORA at approximately 2.8%–3.2% in early 2026, a SORA + 0.75% package prices at roughly 3.55%–3.95% — currently higher than most 2–3 year fixed offers of 2.5%–3.0%. This rate inversion makes fixed-rate packages unusually attractive in early 2026 for buyers who expect SORA to remain elevated or move higher.
How SORA Works: The Benchmark Explained
SORA — the Singapore Overnight Rate Average — is calculated and published daily by the Monetary Authority of Singapore (MAS). It represents the volume-weighted average rate of overnight interbank SGD cash transactions in Singapore’s unsecured overnight interbank market. Because it is based on actual executed transactions rather than bank submissions, it is considered more robust and harder to manipulate than SIBOR.
Mortgages are typically pegged to the 1-month compounded SORA (1M SORA) or 3-month compounded SORA (3M SORA). These are calculated by compounding the daily SORA observations over the relevant preceding calendar period:
- 1M SORA: compounded daily SORA over the last calendar month. More responsive to rate changes — monthly instalment adjusts faster.
- 3M SORA: compounded daily SORA over the last three calendar months. Smoother, with a quarterly lag. More common in mortgage packages; easier to budget.
Your monthly instalment on a SORA-pegged loan is recalculated each time the compounded SORA figure is reset (monthly for 1M SORA, quarterly for 3M SORA). The published SORA rate plus the bank’s spread gives your all-in mortgage rate for that period. Spreads are contractually fixed for the life of the package (or for the promotional period), so the only variable is the SORA benchmark itself.
The practical implication: SORA-pegged borrowers benefit automatically when MAS monetary policy eases, without needing to refinance. Conversely, when SORA rises — as it did sharply in 2022–2023 — instalments increase in near-real time. Borrowers who cannot absorb payment volatility should prefer fixed-rate packages.
Bank Loan vs HDB Concessionary Loan
This choice applies only to buyers of HDB resale flats and new BTO flats (subject to eligibility). Private property buyers have no access to the HDB loan. Eligibility for the HDB loan requires at least one Singaporean Citizen borrower, income not exceeding S$14,000/month (S$21,000 for extended/multi-generational families), no private property ownership, and no prior HDB loan default.
| Feature | HDB Concessionary Loan | Bank Loan (for HDB) |
|---|---|---|
| 2026 interest rate | 2.6% p.a. (pegged at CPF OA rate + 0.1%) | Fixed ~2.5%–3.0% or SORA + spread |
| LTV limit | Up to 80% of flat value | Up to 75% of flat value |
| Minimum cash downpayment | None (full downpayment can be CPF OA) | 5% cash (first property) |
| Maximum tenure | 25 years (or age 65, whichever is shorter) | 25 years (HDB flat, bank loan) |
| Lock-in period | None — can repay or refinance any time | Typically 2–3 years with clawback |
| Rate stability | Very stable — only changes when CPF OA rate changes | Fixed is stable; SORA floats |
| Prepayment penalty | None | Clawback during lock-in (typically 1.5%) |
| Refinancing to bank | Allowed; cannot return to HDB loan once switched | Can refinance between banks freely after lock-in |
| CPF usage for downpayment | Full downpayment can be from CPF OA | Up to 20% of purchase price from CPF OA |
The HDB loan’s 2.6% rate — set at CPF OA rate (2.5%) + 0.1% — has been unchanged since 1999. With bank fixed rates currently available at 2.5%–3.0%, the cost differential in early 2026 is modest. The HDB loan’s primary advantages are no lock-in, no cash downpayment, and a higher 80% LTV ceiling. For buyers with limited cash savings or those who may need to sell within a few years, these features often outweigh any small interest-rate saving from a bank package.
Lock-In Periods and Clawback Clauses
The lock-in period is the contractual window during which you may not fully redeem the loan, refinance to another bank, or make partial prepayments above a specified threshold, without triggering a clawback fee. The standard lock-in duration in Singapore is 2–3 years.
The clawback fee (sometimes called a prepayment penalty or redemption fee) is typically calculated as a percentage of the outstanding loan balance at the time of redemption. The standard rate across most major Singapore lenders is 1.5% of the outstanding loan. Some banks charge a flat amount (e.g., S$5,000) or apply a tiered structure, but 1.5% of outstanding principal is the market norm.
Example: You took a S$900,000 loan in January 2024 on a 3-year fixed package. By January 2026 (two years in), the outstanding balance has reduced to approximately S$860,000 (depending on rate and tenure). If you attempt to refinance in January 2026 — one year before the lock-in expires — the clawback fee is:
S$860,000 × 1.5% = S$12,900
This fee, combined with legal and valuation costs for the new loan (roughly S$2,500–S$5,000 unless subsidised), means a mid-lock-in switch is rarely worthwhile unless the new rate is meaningfully lower. Most refinancing advisers recommend switching only after the lock-in expires or if the savings over the remaining lock-in period exceed the total exit costs.
Other clauses to check in a mortgage term sheet:
- Partial prepayment threshold: Many packages allow partial repayments of up to 5%–10% of the original loan per year during the lock-in without triggering a fee. Useful for lump-sum capital reduction.
- Conversion fee: Some banks charge a conversion fee (typically S$500–S$1,000) to switch between packages within the same bank during or after lock-in. Cheaper than full refinancing but still a cost.
- Cancellation fee: If you cancel a fully approved in-principle loan before drawdown, some banks impose a fee of 0.5%–1.0% of the approved amount. Check this before exercising an OTP if you are not yet fully committed.
- Legal subsidy on refinancing: Many banks offer to cover conveyancing fees (typically S$1,800–S$2,500) for borrowers refinancing into their books. This subsidy usually comes with a clawback condition of its own — if you leave within 1–3 years, you repay the subsidy. Factor this into refinancing cost calculations.
Worked Example: S$1 Million Loan — Fixed 3.0% vs SORA + 0.75% Over 5 Years
To make the fixed versus floating choice tangible, consider a S$1,000,000 bank loan on a private condominium, taken over a 25-year tenure. We compare two packages available in early 2026:
- Package A (Fixed): 3.0% p.a. fixed for 3 years, then reverts to bank board rate (assumed 4.0% for this model)
- Package B (SORA Floating): 3M SORA + 0.75% spread, with a 2-year lock-in. 3M SORA assumed at 3.0% in Year 1, easing to 2.5% in Year 2, 2.0% in Year 3, and stabilising at 2.0% in Years 4–5.
| Year | Package A Rate | Package A Monthly | Package B Rate | Package B Monthly |
|---|---|---|---|---|
| Year 1 | 3.00% | S$4,742 | 3.75% (3.0 + 0.75) | S$5,122 |
| Year 2 | 3.00% | S$4,742 | 3.25% (2.5 + 0.75) | S$4,863 |
| Year 3 | 3.00% | S$4,742 | 2.75% (2.0 + 0.75) | S$4,613 |
| Year 4 | 4.00% (board rate) | S$5,370 | 2.75% (2.0 + 0.75) | S$4,613 |
| Year 5 | 4.00% (board rate) | S$5,370 | 2.75% (2.0 + 0.75) | S$4,613 |
5-year total interest paid (approximate):
- Package A: ~S$143,200 over 5 years (including the higher board rate in Years 4–5)
- Package B: ~S$136,500 over 5 years (if SORA eases as modelled)
The critical refinancing discipline: Package A borrowers who fail to refinance at Year 3 and remain on the 4.0% board rate pay an additional ~S$15,000 in interest over Years 4–5 compared with Package B at 2.75%. Never drift onto a board rate — set a calendar reminder 3 months before your lock-in expires and begin comparing packages then. See our Refinancing Guide for a step-by-step process.
Choosing Your Strategy: Matching Package to Buyer Profile
Profile 1 — First-Time Buyer, Tight Monthly Budget
Recommended: Fixed rate, 2–3 year lock-in. Predictable instalments make budgeting and TDSR management simpler. With fixed rates at 2.5%–3.0% in early 2026, this is historically reasonable. Set a refinancing review for 3 months before lock-in expiry.
Profile 2 — Investor Expecting to Sell in 2–3 Years
Recommended: Match lock-in to expected holding period, or use a no-lock-in package if available. A 3-year fixed package that expires just as you plan to sell avoids clawback fees. If exit timing is uncertain, explore SORA packages with shorter (1-year) or no lock-in periods at a modestly higher spread. See TDSR guide for investment property TDSR rules.
Profile 3 — HDB Upgrader with Strong Cash Reserves
Recommended: Compare SORA floating carefully. If the rate cycle is expected to turn down, taking a SORA + 0.6%–0.8% package means your rate automatically declines without refinancing. Strong cash reserves absorb any near-term rate volatility. If SORA remains elevated beyond expectations, refinance to fixed when the lock-in expires.
Profile 4 — Long-Horizon Owner-Occupier (10+ Years)
Recommended: Consider SORA floating after the initial fixed period. For very long-term holds, locking into a fixed rate for the first 2–3 years provides early certainty, then switching to SORA-pegged after expiry captures rate normalisation over a long cycle. Refinance every 2–3 years to stay on competitive spreads; use legal subsidy packages to minimise switching costs.
Profile 5 — HDB Flat Buyer Near BTO Completion
Recommended: Retain HDB loan if any uncertainty exists. The HDB loan’s flexibility (no lock-in, no cash minimum, 80% LTV) is most valuable when your financial situation is still stabilising in the first 1–3 years after TOP. If your income is stable and a bank loan is materially cheaper, switching after 2–3 years in the HDB loan is a reasonable step-down approach — but remember it is irreversible.
When to Refinance: Key Triggers and Checklist
Refinancing is the discipline of switching your mortgage to a better package — either with your existing bank (repricing) or a new bank (refinancing). In Singapore, refinancing is extremely common: most financially active borrowers review their mortgage every 2–3 years. The primary value drivers are:
- Lock-in expiry: The single most reliable trigger. Begin comparing 3 months before the lock-in expiry date.
- Rate environment shift: If SORA has moved more than 0.5% since your last review, the economics of switching may have changed materially.
- Significant capital reduction: If your outstanding loan has fallen below a threshold where the clawback fee is small relative to the interest saving, early exit may be viable.
- Life event: Decoupling, adding a co-borrower, or removing a co-borrower all typically require a new loan application and are natural moments to review the package.
- You have drifted onto a board rate: If you missed your lock-in expiry and are paying the bank’s board rate, refinancing is almost always worthwhile immediately.
Refinancing cost checklist (new bank):
- Conveyancing (legal) fees: S$2,000–S$4,000 (often subsidised by incoming bank)
- Valuation fee: S$300–S$800 (some banks waive)
- Clawback fee from existing bank: typically 1.5% of outstanding loan if still in lock-in (avoid if possible)
- Fire insurance setup on new policy: S$200–S$500
- CPF housing withdrawal re-charge: minor administrative fee (~S$30–S$50)
For a complete walkthrough of the refinancing process, including how to compare term sheets from multiple banks, see our Singapore Condo Refinancing Guide.
Frequently Asked Questions
What is 3M SORA and how does it affect my monthly mortgage payment?
3-month compounded SORA (3M SORA) is the compounded average of daily SORA observations over the preceding three calendar months, published by MAS. Your mortgage rate equals 3M SORA plus your bank’s contractual spread (e.g., SORA + 0.75%). When 3M SORA rises, your mortgage rate rises by the same amount, and your next month’s instalment recalculates accordingly. In early 2026, 3M SORA is approximately 2.8%–3.2%, meaning a SORA + 0.75% package costs roughly 3.55%–3.95% all-in. Track the current 3M SORA at MAS’s SORA page or via our SORA Rate Tracker.
Are fixed-rate mortgages truly fixed for the entire loan tenure?
No. “Fixed rate” in Singapore mortgage terminology refers to a fixed promotional period — typically 2–3 years — after which the loan reverts to the bank’s floating board rate. The board rate is set at the bank’s discretion and is generally higher than the promotional rate. Borrowers who want to maintain a predictable rate must actively refinance every 2–3 years when their fixed period expires, or reprice within the same bank. A truly fixed-for-life mortgage does not exist in Singapore’s retail market.
What is the clawback fee and when does it apply?
The clawback fee (or prepayment penalty) applies when you fully redeem your mortgage — by selling the property, refinancing to another bank, or making a full lump-sum repayment — before the lock-in period expires. The standard rate in Singapore is 1.5% of the outstanding loan balance at the time of redemption. It is distinct from the loan’s interest rate and is paid to the existing bank as a contractual penalty. The clawback does not apply to partial repayments within the allowed annual threshold (typically 5%–10% of the original loan), and it disappears entirely once the lock-in period ends.
Can I switch from a bank loan back to the HDB loan?
No. Once you refinance from the HDB Concessionary Loan to a bank loan, you cannot revert to the HDB loan. The HDB loan is a one-way door: you may leave it, but you cannot return. This is an important asymmetry to consider before switching. If you took a bank loan for your HDB flat from the outset (i.e., you never had the HDB loan), this rule does not apply.
What is an MSR limit and how does it interact with my mortgage choice?
The Mortgage Servicing Ratio (MSR) applies specifically to HDB flats and Executive Condominiums (ECs within the first 10 years). It caps monthly mortgage repayments at 30% of gross monthly income. The Total Debt Servicing Ratio (TDSR) of 55% applies to all property loans. On a higher-rate package, the monthly instalment rises — potentially breaching MSR even if TDSR remains satisfied. When evaluating SORA-pegged packages for an HDB flat, banks stress-test the payment at SORA + spread assuming SORA is at least 4.0% (the MAS stress-test floor), which may reduce your maximum loan quantum. See TDSR & MSR guide for the full methodology.
Is the legal subsidy from the incoming bank “free”?
Not exactly. Legal subsidies offered by banks to cover conveyancing fees on refinancing (typically S$1,800–S$2,500) come with their own clawback condition: if you leave the new bank within 1–3 years (the subsidy clawback period), you must repay the subsidy in full. This effectively extends your switching cost horizon. When comparing refinancing offers, factor in the total cost including any subsidy clawback risk, not just the headline interest rate.
What is the stress-test rate banks use for mortgage approval in 2026?
MAS guidelines require banks to stress-test all new residential property loans at the higher of the actual loan rate + 2%, or a floor rate of 4.0% p.a. This means even if your SORA package currently prices at 3.75%, the bank calculates your TDSR and MSR (for HDB/EC) using a notional rate of at least 4.0% — or 5.75% (3.75% + 2%) if the package rate is above 2.0%. In early 2026 with SORA-pegged packages at 3.5%–4.0%, the stressed rate floor is typically 5.5%–6.0%. This stress test is what banks use when calculating your maximum loan quantum at loan application; your actual monthly payment is based on the real contracted rate.