Prime Lending Rate Singapore
The prime lending rate is the reference interest rate a Singapore bank sets internally for its most creditworthy customers, historically used as a benchmark for pricing loans such as mortgages, though it has been largely superseded by SORA for most home loans since 2024.
Not financial advice. All figures for educational reference only. Data as at August 2026.
Last updated: August 2026
Key Takeaways
- Unlike the US, where there is a single widely-referenced Prime Rate, each Singapore bank sets and publishes its own individual Prime Rate — DBS, OCBC and UOB each have their own figures, which can differ from one another.
- Historically, Prime Rate (or ‘Board Rate’) home loan packages were common in Singapore, but the market has largely shifted to SORA-pegged loans since MAS phased out SIBOR by the end of 2024, pushing the industry toward the more transparent SORA benchmark.
- Prime Rate loans are typically priced at the bank’s discretion, meaning the bank can adjust the rate based on its own funding costs and business considerations, rather than tracking a transparent market benchmark in real time.
- SORA (Singapore Overnight Rate Average) is now the dominant reference rate for new home loans, calculated as a compounded average of actual overnight interbank transactions, making it more transparent than Prime Rate.
- Prime Rate still appears in some personal loans, business loans, and legacy mortgage packages, so understanding it remains relevant even though it’s no longer the primary benchmark for new home loans.
What Is the Prime Lending Rate?
The prime lending rate is a reference interest rate that a bank sets for its most creditworthy customers — historically the ‘best’ rate a bank would offer, with other borrowers typically priced at a margin above it depending on their credit profile. In Singapore, each major bank (DBS, OCBC, UOB, and others) publishes and maintains its own individual Prime Rate, which is not a single unified national rate the way it functions in some other countries.
For decades, Prime Rate (sometimes marketed as ‘Board Rate’) was one of the most common benchmarks used to price home loans in Singapore, alongside SIBOR (Singapore Interbank Offered Rate). Loan packages would typically be quoted as ‘Prime Rate minus X%’ or similar, with the bank retaining discretion over how and when to adjust its Prime Rate.
This discretionary nature is the key distinction between Prime Rate and more transparent market-based benchmarks: a bank can choose to adjust its Prime Rate based on its own funding costs, competitive positioning, and business strategy, rather than it being mechanically derived from an observable market rate — which is part of why regulators and the industry have pushed toward more transparent alternatives in recent years.
How Does the Prime Lending Rate Work in Singapore Today?
Following MAS’s industry-wide transition away from SIBOR (fully phased out by end-2024) toward SORA (Singapore Overnight Rate Average) as the primary interest rate benchmark, the majority of new Singapore home loans are now pegged to SORA rather than Prime Rate or SIBOR. SORA is calculated as a volume-weighted average rate based on actual overnight interbank Singapore dollar transactions, published daily by MAS, making it more transparent and harder for any single institution to influence than a bank-set Prime Rate.
That said, Prime Rate has not disappeared entirely. Some banks still offer Prime Rate-pegged packages for certain loan types, including some personal loans, business loans, and select mortgage refinancing packages, particularly for borrowers who value the relative rate stability that a bank-administered rate can offer compared to the more frequently fluctuating SORA (which is typically referenced as a compounded average over a rolling period, such as 1-month or 3-month SORA, smoothing out day-to-day volatility to some degree).
Because each bank sets its own Prime Rate independently, comparing Prime Rate-pegged loan offers across banks requires looking at both the bank’s current Prime Rate and the margin (spread) applied on top of it — a lower headline Prime Rate doesn’t necessarily mean a lower effective borrowing cost if the bank’s margin is comparatively higher.
Prime Lending Rate Example
Suppose Bank A publishes a Prime Rate of 4.25% and offers a loan package priced at ‘Prime Rate minus 1.75%’, resulting in an effective rate of 2.50%. Bank B publishes a slightly lower Prime Rate of 4.00% but offers ‘Prime Rate minus 1.25%’, resulting in an effective rate of 2.75%.
Even though Bank B’s headline Prime Rate is lower, Bank A’s loan package actually offers the better effective rate once the margin is factored in — illustrating why comparing the final effective rate, not just the headline Prime Rate, is essential when evaluating Prime Rate-pegged loan offers.
By contrast, a SORA-pegged loan at, say, ‘3-month compounded SORA plus 0.65%’ would move in lockstep with the published SORA rate, which is publicly available from MAS daily — offering more transparency about exactly how and when the rate will change, compared to a Prime Rate that the bank can adjust at its own discretion.
Advantages of Prime Rate-Pegged Loans
- Historically offered more rate stability. Because banks adjust Prime Rate at their own discretion rather than it moving with every market fluctuation, it has sometimes changed less frequently than market-based benchmarks like SORA.
- Simple to understand conceptually. A single published rate from your own bank is arguably easier to track than a compounded average benchmark calculated over a rolling period.
- Still relevant for certain loan types. Some personal and business loans continue to use Prime Rate as their reference, so understanding it remains useful beyond just mortgages.
- Can offer predictability during volatile rate environments. Since banks don’t have to pass through every short-term market rate move immediately, Prime Rate can lag behind sudden market rate spikes.
Risks and Limitations
- Lack of transparency compared to market-based benchmarks. Because the bank sets Prime Rate at its own discretion, borrowers have less visibility into exactly why or when it will change, compared to SORA which is calculated from actual observable transactions.
- Largely phased out for new home loans. Since the SIBOR-to-SORA transition, most new mortgage offerings are SORA-pegged, meaning Prime Rate options may be less competitive or less available for fresh home loan applications.
- Can lag or lead market rates unpredictably. A bank may choose not to lower its Prime Rate even if broader market rates fall, or vice versa, depending on its own funding and profitability considerations.
- Comparing across banks requires more effort. Since each bank has its own Prime Rate and margin structure, apples-to-apples comparison requires calculating the effective all-in rate for each offer.
Prime Rate vs SORA vs (Former) SIBOR
| Feature | Prime Rate | SORA | SIBOR (Phased Out) |
|---|---|---|---|
| Set by | Individual bank, at its discretion | Calculated from actual overnight interbank transactions | Formerly submitted by a panel of banks |
| Transparency | Lower — bank-administered | Higher — published daily by MAS | Moderate — panel-based, now discontinued |
| Current relevance for home loans | Limited, mostly legacy/select packages | Now the dominant benchmark for new home loans | Fully phased out by end-2024 |
| Volatility | Can be more stable, changes at bank’s discretion | Reflects actual market conditions more closely | N/A — no longer in use |
Source: The Kopi Notes analysis based on MAS SORA transition guidance and published bank Prime Rate schedules, August 2026. Figures for educational illustration only.
The Bottom Line
While the Prime Rate was once a mainstay of Singapore home loan pricing, most new mortgages today are pegged to SORA following MAS’s industry-wide push for greater benchmark transparency — but Prime Rate hasn’t disappeared entirely, and borrowers comparing loan offers should always calculate the effective all-in rate (base rate plus margin) rather than comparing headline rates alone.
Is there a single national Prime Rate in Singapore like in the US?
No — each Singapore bank sets and publishes its own individual Prime Rate, so DBS, OCBC, UOB and other banks can each have different Prime Rate figures at any given time, unlike a single unified national benchmark.
Why did Singapore banks move away from Prime Rate for home loans?
The shift was largely driven by MAS’s broader push toward more transparent interest rate benchmarks, culminating in the phase-out of SIBOR by end-2024 and the industry-wide adoption of SORA, which is calculated from actual market transactions rather than set at a bank’s discretion.
What is SORA and how is it different from Prime Rate?
SORA (Singapore Overnight Rate Average) is a benchmark calculated as a volume-weighted average of actual overnight interbank Singapore dollar transactions, published daily by MAS — unlike Prime Rate, which is set internally by each bank rather than derived from observable market data.
Can I still get a Prime Rate-pegged home loan in Singapore?
Some banks may still offer Prime Rate-pegged options for select mortgage packages or refinancing, but SORA-pegged loans have become the dominant standard for new home loans since the SIBOR phase-out.
Is a Prime Rate loan better than a SORA-pegged loan?
It depends on individual preferences — Prime Rate loans can offer more rate stability since the bank adjusts them at its own discretion, while SORA-pegged loans offer more transparency since the rate is tied to observable market transactions; the better choice depends on your risk tolerance and the specific rates and margins on offer.