WhatsApp Joanne
Joanne
Your property advisor · Joanne's CEA R073465F
Hi there 👋 Tell me what you're looking for and I'll shortlist the right homes.
Start a WhatsApp chat
Online now

Mortgage Calculator Singapore

See your monthly repayment and the figure the bank tests you at, with Singapore loan limits applied as you type.

Rules as at 30 Sep 2026·How we calculate
Property type
Max 75% · S$1,125,000
75% of the price
Max 35 years
Indicative market rate: 1.50%. 3M SORA ≈ 1.2% (Sep 2026).
Advanced options
Oldest borrower, or the income-weighted average for joint loans. Age plus tenure above 65 lowers the loan limit.
Existing housing loans
Rate package
Estimated monthly instalment
S$3,883 / month
At the 4% stress-test rate: S$5,371 / month. This is the figure banks use to check you can afford the loan. What's this?
S$3,883 per month
Loan amountS$1,125,000 (75%)
DownpaymentS$375,000 (25%)
— of which minimum cashS$75,000 (5%)
— CPF OA or cashS$300,000 (20%)
Total interest over 30 yearsS$272,737
Total repaymentS$1,397,737
Principal vs interest by year
Year 1Year 30
PrincipalInterestOutstanding balance
Show yearly schedule
YearOpeningInterestPrincipalClosing

How your monthly instalment is worked out

Your monthly instalment depends on the loan amount, the interest rate and the tenure. In Singapore, banks can lend up to 75% of the price on your first housing loan. Tenure is capped at 35 years for private property and 30 years for HDB flats. Banks also check that you could afford the loan if rates rose to 4%. That's why this calculator shows a "stress test" instalment too.

Frequently asked questions

What interest rate should I use?

Best floating packages in September 2026 are about 1.4–1.5% a year (3-month SORA plus the bank's spread). HDB concessionary loans are 2.6% (the CPF OA rate plus 0.1%). Use the rate from your bank's offer if you have one.

Why does the bank test me at 4%?

MAS requires banks to assess your Total Debt Servicing Ratio at a medium-term interest rate floor of 4% for private property loans (3% for HDB loans), or your actual rate if higher. It checks you could still pay if rates rise, even though your real instalment is lower.

Why did my maximum loan drop to 55%?

Your first bank loan is capped at 75% of the price only if the tenure is 30 years or less for private property (25 years for HDB) and your age plus the tenure does not go past 65. If either limit is exceeded, the cap falls to 55%, and the minimum cash downpayment rises from 5% to 10%.

Can I pay my downpayment with CPF?

Yes. With a bank loan, at least 5% of the price must be paid in cash (25% if you already have a housing loan); the rest of the downpayment can come from your CPF Ordinary Account. With an HDB loan, the whole 25% downpayment can be paid with CPF OA.

HDB loan or bank loan: which is better?

An HDB loan has a stable 2.6% rate, a 25% downpayment you can pay fully with CPF and more lenient late-payment handling. Bank loans are usually cheaper today, but rates float. You can refinance from an HDB loan to a bank loan later, but not back again.

When can I refinance, and what is a lock-in period?

Most bank packages have a lock-in of 2–3 years. Repaying or refinancing during the lock-in usually costs a penalty of about 1.5% of the amount redeemed. After it ends you can refinance to a new package, typically after giving 3 months' notice. Legal and valuation fees apply, though banks often subsidise them for larger loans.

How do Singapore banks charge interest?

On a monthly-rest basis: interest is worked out each month on the loan balance still owing, so every repayment reduces the next month's interest. That is why most of your early instalments go to interest and more goes to principal each year, as the chart above shows.

How do payments work for a new launch still under construction?

New launches bought under the progressive payment scheme draw the loan in stages as construction milestones are reached (foundation, structure, roof and so on). You only pay interest on the amount disbursed, so instalments start small and reach the full figure shown here around TOP.

Fixed rate or SORA-linked package: which should I choose?

A fixed rate keeps your instalment the same for the first 2–3 years, protecting you if rates rise. A SORA-linked (floating) package moves with the 3-month compounded SORA plus the bank's spread, so it falls when rates fall. Use the two-stage option above to compare the instalment before and after a fixed period ends.

How we calculate

  • Monthly instalment = loan × i ÷ (1 − (1 + i)−n), where i is the monthly rate and n the number of months.
  • Loan limits (LTV), minimum cash and tenure caps follow the Monetary Authority of Singapore (MAS) housing loan rules.
  • Stress test: the higher of your rate and the MAS medium-term rate floor.
  • Sources: MAS · HDB · CPF
Estimates only, based on rules as at 30 Sep 2026. Not financial advice. Final loan amounts depend on the bank's or HDB's assessment; stamp duty is assessed by IRAS. Joanne, CEA Reg. R073465F, Huttons Asia Pte Ltd.