Cashflow Pillar · 2026

Fixed vs floating mortgage Singapore 2026: the decision, not the rate

By Winfred Quek · 11-minute read · Last reviewed May 2026

Quick answer: Fixed-rate mortgages in Singapore lock your rate for 1–3 years (typically 3.0–3.5% p.a. in 2026) with lock-in penalties for early refinancing. Floating-rate loans peg to SORA (1-month or 3-month) plus a spread and reprice quarterly. Fixed rates suit buyers who need cashflow certainty or plan to hold through a rate-uncertainty window; floating suits those with shorter hold horizons or confidence that SORA will fall within the lock-in period.

Facts verified: May 2026 · Sources linked below

Key Takeaways

• Fixed rates in 2026 run 3.0–3.5% p.a. for 2–3 year lock-in periods. SORA 3-month compound rate + bank spread typically prices floating at 3.0–3.3% p.a. the gap is narrow, making the decision about risk tolerance, not rate chasing.
• Lock-in penalty for early repayment or refinancing is typically 1.5% of the outstanding loan. On a S$1.2M loan, that is S$18,000 enough to wipe out 18 months of rate savings from switching.
• According to MAS Notice 645, TDSR stress-tests at 4% p.a. meaning your loan quantum is already sized to withstand rates above current market levels, reducing the case for paying a premium for fixed-rate certainty.
• Board rate packages (pegged to internal bank rates, not SORA) should be avoided the bank can reprice upward at will with 30 days' notice. Always choose SORA-pegged floating if you want a floating package.
• Best time to refinance: 3 months before lock-in expiry. Switching banks takes 8–12 weeks and any gap outside lock-in burns you on board rates. Calendar the refinancing window the day you sign.

The wrong question is "which rate is lower today?" The right question is "which structure matches my cashflow stability, my hold horizon, and my view on the rate cycle?" Most buyers I meet have been shown a comparison sheet from a mortgage broker with the headline rate circled, and no framework for thinking about the decision.

This piece is the framework. SORA mechanics, the lock-in traps, board rate games, and the specific cases where fixed wins over floating (and vice versa). If you're about to sign a loan facility letter in 2026, read this first.

1. The three main package types in Singapore

Singapore banks offer three broad mortgage structures: fixed rate, SORA-pegged floating, and board rate floating. Each has very different risk characteristics even when the headline rate looks similar.

Fixed rate: Locked rate for the fixed-period (typically 2 or 3 years), after which it converts to a floating structure. The lock insulates you from rate moves during the fixed period. Early redemption penalty (1.5% of outstanding) usually applies within the lock-in.
SORA-pegged: The loan rate = 3M or 1M compounded SORA + a bank spread (typically 0.8–1.2%). SORA moves with MAS policy and market conditions. Transparent and formula-based.
Board rate: Bank sets the rate at its discretion. Less transparent. Banks historically raise board rates faster than they drop them. Generally least attractive unless paired with a specific promotion.

Real Example: $1.4M Condo, Fixed vs Floating Over 8-Year Hold

Detail	Fixed 3Y (3.05%)	SORA Floating (SORA+0.85%)
Profile	SC couple, $14,000/month combined income, 8-year hold, $1.4M condo, 75% LTV loan = $1,050,000, 25-year tenure
Year 1–3 rate	3.05% fixed	~3.55% (SORA 2.7% + 0.85%)
Monthly instalment (Yr 1–3)	~$5,000/month	~$5,250/month
Saving vs floating (Yr 1–3)	+$250/month = $9,000 over 3 years
Year 4+ rate (after fixed period ends)	Converts to SORA+0.9% (~3.6%)	SORA+0.85% (same, no change)
Lock-in penalty if selling at Year 2	1.5% of outstanding ~$1.01M = $15,150	None (2-year lock-in with sale waiver)
Best for	Stable-income family, 8-year hold, no expected early sale, wants cashflow certainty for years 1–3	Investor expecting to refinance at Year 2, or planning a sale within 3 years
Total interest Year 1–3	~$95,000	~$104,000
Verdict for this client	Fixed 3Y wins by ~$9,000 in Years 1–3 with no execution risk given planned 8-year hold	Only preferred if SORA falls 0.5%+ within 18 months speculative

Illustrative 2026 example. Rates indicative; always get live quotes from 2–3 banks before committing. SORA movements can shift this analysis materially.

2. SORA mechanics, the only floating rate worth tracking

SORA (Singapore Overnight Rate Average) is the interbank overnight lending rate. 3M compounded SORA is the most common mortgage peg, the average of daily SORA readings over the prior 3 months, compounded. This smooths volatility: even if overnight rates spike, your 3M compounded SORA changes gradually.

As of April 2026, 3M compounded SORA is trading around 2.5–2.8%. Bank spreads on SORA-pegged mortgages range from 0.8% to 1.2% depending on loan size and customer segment. Effective all-in floating rate: 3.3–4.0%.

Fixed rate packages for 2-year and 3-year fixed are pricing at 2.8–3.3% as of April 2026. The fixed-floating differential has narrowed materially from the 2023 peak, when fixed was often 1%+ cheaper than floating.

3. Lock-in and redemption penalty, the real cost

Every fixed-rate package has a lock-in period (typically 2 or 3 years matching the fixed tenure) during which early redemption triggers a penalty, usually 1.5% of the outstanding loan. On a S$1M loan, that's S$15,000.

What triggers redemption? Selling the property, refinancing to another bank, or making a large lump-sum repayment beyond the allowed prepayment window. The last one catches many clients who come into bonus/sale proceeds and want to reduce principal, only to find the penalty wipes out the interest savings.

Check the clause wording. Some packages waive the penalty on sale (you still lose on refinancing) while others apply it equally. Some have a 20% annual partial prepayment allowance; others have zero. Two banks can have identical headline rates but materially different lock-in terms. Read the facility letter, not the flyer.

4. When fixed rate wins

Fixed rate is the right answer when any of these apply:

Cashflow-constrained household

If a 1% rate rise would materially compromise your monthly budget, fixed rate is insurance. The premium (if any) is the cost of sleeping well. TDSR-tight borrowers who scraped through approval cannot absorb floating rate shock without life adjustments.

Tight TDSR at origination

Even though MAS stress-tests at 4%, a hard TDSR case may be 1 percentage point from the limit in reality. Locking in protects you from triggering stress scenarios at refinancing.

No strong view on rate direction

If you don't have a specific thesis on where rates go, fixed rate removes one variable. Most homeowners are not professional rate watchers and shouldn't pretend to be.

Short-term certainty required

If you're planning a family, career change, or sabbatical where cashflow needs to be rock-stable for 24 months, fixed matches that need.

5. When floating wins

Floating is the right answer when any of these apply:

Short hold horizon

If you're planning to sell within 12–18 months (post-SSD window), you don't want to be stuck with a 2-year or 3-year lock-in and its redemption penalty. Floating with a short lock-in (or a redemption-on-sale waiver) matches the exit timing.

Rate-cut thesis

If your view is that policy rates will fall materially over the next 12–24 months (e.g., global central bank easing cycle), floating captures the downside. You can always refinance to fixed later if your view flips.

High-income, cashflow-resilient

If a 1–2% rate rise is absorbed by household cashflow without stress, you don't need the insurance that fixed provides. Floating tends to have lower structural spread over a 10-year horizon.

Planning to refinance or restructure within 24 months

If you anticipate refinancing (say, due to an upcoming restructuring or property restructure), a fixed-rate lock-in becomes a problem. Floating with shorter or no lock-in gives you optionality.

6. What Is the Board Rate Trap and Why Should You Avoid It?

Board rate packages are the least transparent. The bank publishes a board rate and can adjust it at its discretion (with appropriate notice per MAS guidelines). Historically, board rates have:

Risen faster than they fall, banks protect margins when funding costs rise.
Been slower to pass on cuts when SORA drops.
Featured in "teaser rate" packages where the Year 1 rate is attractive and Year 2+ reverts to a materially higher number.

In 2026, I rarely recommend board rate packages unless the specific combination of rate, lock-in, and fee structure is clearly superior. Transparency matters over a 25-year loan tenure.

7. The 3-year decision, a worked example

Client with a S$1.5M loan, 30-year tenure, 8-year likely hold. Three packages on the table in April 2026:

Package	Year 1–3 rate	Year 4+ rate	Lock-in
Fixed 3Y	3.05%	SORA + 0.9%	3 years
SORA-pegged floating	SORA + 0.85% (~3.55%)	SORA + 0.85%	2 years
Board rate 2Y teaser	2.85% Y1, 3.55% Y2	Board rate (3.75%+)	2 years

Which wins depends on the rate path. If SORA stays flat or rises, the Fixed 3Y saves ~0.5% for 3 years = ~S$22,500 on a S$1.5M loan. If SORA falls 0.75% over 18 months, the floating wins. If you plan to sell at Year 3, Fixed 3Y lock-in ends exactly on schedule, no penalty, maximum benefit.

For a stable-income family with an 8-year hold and no strong rate view, Fixed 3Y is the usable middle path. For a high-income investor who may exit at Year 2, floating with a short lock-in is cleaner.

8. When Should You Refinance and How Do You Time It Correctly?

Refinancing (switching banks) typically becomes attractive 3–6 months before lock-in ends. The process: get indicative offers from 2–3 banks, compare all-in cost (rate + fees + legal costs), apply, and close within the lock-in window to avoid the old bank's penalty.

Legal subsidy (typically S$2,000 – S$3,000 for refinancing) and cash rebates are part of the all-in comparison. Some banks clawback these if you refinance within their new lock-in. Read both sides.

A realistic cadence: re-evaluate the mortgage structure every 2–3 years. Not monthly. Not never. Twice in a decade.

9. What mortgage brokers don't tell you

Package availability is loan-size-dependent. Rates advertised for S$1M+ loans aren't offered at S$500k loans. Check your specific tier.
Variable income buyers get worse packages. Self-employed, commission based, or foreign-income buyers often see a 0.2–0.4% higher spread. Bring all income proof to get the best offer.
Co-borrower composition matters. Having a low-income spouse as co-borrower can reduce the effective rate by expanding TDSR headroom, but also complicates restructuring later.
"Promotional" rates are for new purchases only. Existing customers refinancing internally usually get worse rates than new-to-bank offers.

10. How this fits the Cashflow pillar

In the Property Portfolio Analysis, the mortgage structure sits in the Cashflow pillar, it's the single largest recurring outflow for most households. The right structure isn't the one with the lowest headline rate. It's the one that matches your cashflow stability, your exit horizon, and your view on the cycle.

Run through the affordability calculator with a 1% rate shock before signing any package. If your margin is tight, fixed rate is cheap insurance. If your margin is healthy, floating gives you optionality.

The worst answer is "whichever has the lowest rate this week." That's the non-decision most buyers make by default.

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Two hours. We review your actual mortgage options, stress test cashflow at plus-1% and plus-2% rate shocks, and pick the structure that matches your horizon, not the one with the best flyer.

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Winfred's Take

The fixed vs floating decision is mostly overthought. With TDSR stress-tested at 4%, MAS has already validated that your loan is affordable even if rates rise significantly so the real question is whether paying a 0.2–0.3% premium for a fixed package is worth the cashflow predictability to you personally. For most salaried borrowers with stable income and a 5+ year hold, floating SORA-pegged is the rational choice. Fixed makes sense for the subset of borrowers who genuinely cannot absorb a S$300–S$500/month payment increase and need certainty above all else.