First Refinancing at Lock-In Expiry Singapore: How One Couple Cut Their Mortgage by $890 a Month

Expert takeaway: Refinancing at lock-in expiry in 2026 is one of the highest-return hours a homeowner can spend, but the saving comes from timing the free-switch window and comparing the three-year cost, not from chasing the lowest headline rate.

Benedict and Li Ting had never refinanced anything. When they bought their three-bedroom condo in the Bukit Batok fringe in 2022, they signed a two-year fixed package at 3.35% because rates were climbing and certainty felt safe. Four years later, with the lock-in long expired and the loan quietly sitting on a bank board rate, a single afternoon of paperwork cut their monthly instalment by roughly $890. This is how their first refinancing at lock-in expiry actually unfolded, numbers and mistakes included.

What was happening in the Singapore mortgage market in 2026

The backdrop matters, because their saving was as much about the market as their diligence. Rates had fallen sharply from the 2023 peak. MAS publishes SORA daily, and by early September 2026 the 3-month compounded SORA sat in the region of 1.1% to 1.2%, down from the 3%-plus territory of two years earlier. Based on MAS SORA data to early September 2026, that put the best two-year fixed packages at roughly 1.40% to 1.45%, and floating packages at SORA plus a spread of around 0.8% to 1.0%.

For context, the HDB concessionary loan rate remained at 2.60%, so bank packages in 2026 undercut it by more than a full percentage point. Benedict and Li Ting were on a private bank loan, but the same gravity applied: their legacy 3.35% rate was almost 2 percentage points above what a fresh package could offer. When you understand how the stress test and rate floors work, you also understand why acting on a real 1.9-point gap is rarely a close call.

The numbers Benedict and Li Ting faced

Here is the position they were in when they finally sat down to look. Their outstanding balance had come down to about $820,000, with roughly 21 years left on the original 25-year tenure.

The headline was the $890 a month, close to $10,700 in the first year alone. But the more revealing number was the interest split. At 3.35%, roughly $2,290 of that first monthly payment was pure interest. At 1.42%, interest fell to about $970 in month one, meaning far more of every instalment now chipped away at the principal instead of feeding the bank. Lower rate, same payment discipline, faster equity build. That is the quiet compounding benefit borrowers often miss when they fixate only on the cash-flow figure.

Reprice or refinance: the question they almost got wrong

Their first instinct was to jump straight to a new bank offering the lowest advertised rate. Their mortgage broker stopped them with one question: had they asked their existing bank to reprice first? Repricing means staying with your current lender and switching to one of its newer packages. It is usually cheaper and faster than refinancing, because it avoids fresh legal and valuation work.

The existing bank came back with 1.55% fixed and no repricing fee. A competitor offered 1.42% fixed with a legal subsidy of $2,000 that covered most of the conveyancing cost. On an $820,000 balance, the 0.13% difference was worth roughly $1,060 a year, enough to justify the switch even after accounting for the small friction of moving banks. The lesson was not that refinancing always wins. It was that you cannot know until you force both sides to quote. Anyone weighing their own numbers should run them through an affordability and repayment calculator before speaking to a single banker, so the quotes land on prepared ground.

The mistake that nearly cost them a year

Here is the part Benedict admits he got wrong. Their lock-in had expired back in 2024. For close to two years the loan had been drifting on a bank board rate that crept up to 3.35%, and they simply never looked. They assumed refinancing was a hassle reserved for people chasing marginal gains. In reality, every month of inaction on that gap was costing them the better part of $890. Roughly $17,000 of savings evaporated during the two years they left the loan on autopilot.

The second near-miss was the redemption notice. Most banks require around three months' written notice before you redeem or refinance a loan. Because they had already passed lock-in, there was no penalty, but a borrower still inside a lock-in who refinances early typically faces a redemption penalty of about 1.5% of the outstanding loan, which on $820,000 would have been more than $12,000. Timing the free-switch window, roughly four to six months before lock-in expiry, is where the real discipline lies.

Opportunities and risks they weighed before signing

Cutting a payment feels like a pure win, but they made themselves list the risks too.

• Opportunity: immediate cash flow. The $890 monthly saving went straight into their children's education fund, a real and recurring benefit.
• Opportunity: faster principal paydown. By keeping their budgeted payment roughly the same and letting the lower rate do the work, they could shave years off the loan if they chose to.
• Risk: fixed only buys two years of certainty. Their 1.42% is locked for two years. If SORA rebounds by 2028, they will be back in the market again. Fixed protects against that; floating would not.
• Risk: legal and valuation costs. Even with a subsidy, refinancing carries fees. On a smaller loan, those costs can swallow the saving, which is why the balance size matters.
• Risk: tenure creep. Some borrowers refinance and quietly stretch the tenure back out to lower payments further. That feels good monthly but adds interest over the life of the loan.

They also confirmed they were comfortably within their TDSR limit, which a refinance to a new bank re-assesses. A household whose income has dipped since the original purchase can find a refinance harder to secure, so this is not a formality to skip.

The transferable framework

Strip away the personalities and their decision reduces to a five-step check any homeowner can run at lock-in expiry:

• Diarise the window. Mark the date four to six months before your lock-in ends and start comparing then, not after.
• Always reprice first. Ask your existing bank for its best repricing offer before you shop, because it sets your floor cheaply.
• Compare the three-year cost, not the first-year teaser. Add the rate, the fees and any subsidy across the realistic holding period.
• Check the penalty and notice period. Never trigger a redemption penalty inside lock-in, and give the required notice on time.
• Decide cash flow or payoff. Choose deliberately whether the saving goes into lower payments or a faster loan, rather than defaulting to whatever the bank sets.

If you are only starting to think about property financing, our guide to the cash and CPF needed for a private purchase covers the upstream numbers, and for those weighing an upgrade after building equity, the review of Lucerne Grand near Lakeside MRT shows how harmonised floor-area rules now shape what saleable space you actually pay for in a 2026 new launch. That harmonised framework, where floor areas are measured to the mid-wall and voids like aircon ledges are excluded, applies to developments whose applications were submitted from 1 June 2023, so always check a project's measurement basis before comparing its psf to an older resale unit.

This case study is a composite drawn from real Singapore transactions and client scenarios; names and identifying details have been changed.

Run your own numbers: try the refinancing savings calculator to see what switching your home loan could save (free, no sign-up).

Benedict and Li Ting's afternoon of paperwork returned close to $10,700 in the first year, but their real regret was the two years they left the loan on autopilot before acting. Refinancing decisions turn on your exact balance, tenure, lock-in date and household income, and a small difference in timing or fees can swing the outcome by thousands. If your lock-in is expiring, or has quietly expired already, reach out to the team at PropertyNet.SG for an independent, numbers-first review of whether repricing or refinancing serves you better, with no pressure to switch and no product to sell.