Buying Mortgage

Mortgage repayment calculator

Work out your monthly instalment, how much of it goes to interest, and what changes once your lock-in period ends.

Your figures

Property Type

Loan Amount (S$)

Interest Rate (%)

Loan Tenure (Years) Max 25 years for HDB.

Connect with Darren to plan for an affordable monthly repayment. Message Darren

Monthly Instalment

S$0

Total Interest PaidS$0

Total RepaymentS$0

Principal 0%

Interest 0%

Loan Summary

Property Type:HDB

Loan Amount:S$0

Interest Rate:0%

Loan Tenure:0 years

Monthly Instalment:S$0

Total Interest Paid:S$0

Total Repayment:S$0

Year	Principal Paid	Interest Paid	Ending Balance

About This Estimate

Each instalment is split between interest (calculated on your outstanding balance) and principal — early in the loan, more goes to interest; later, more goes to principal.
Maximum loan tenure is 25 years for HDB flats and 35 years for private property.
Most homeowners refinance or reprice once their lock-in period ends, since rates typically step up after the promo period — message Darren nearer the time to work out your options.
HDB loans allow prepayment, partial or full, at any time with no penalty. Bank loans typically only penalise full redemption during the lock-in period (often ~1.5% of the loan amount) — partial prepayments up to an annual cap are usually still penalty-free even within lock-in.

Send These Numbers to Darren on WhatsApp

This opens WhatsApp with your figures pre-filled — you review and send it yourself. Nothing is sent automatically.

This calculator provides a general estimate only. Actual instalments depend on your bank's exact rate structure and compounding method — verify with Darren or your loan officer.

Your Current Loan

Outstanding Loan Balance (S$)

Current Interest Rate (%)

Remaining Tenure (Years)

Still Within Lock-In Period?

Lock-In Penalty (% of Outstanding Balance) Typically around 1.5% of your outstanding balance — check your facility letter for the exact figure.

The New Loan You're Considering

New Interest Rate (%)

New Tenure (Years)

Switching Costs (Optional)

Legal & Valuation Fees (S$)

Subsidy Clawback (S$)

Many banks subsidise legal and valuation fees for loans above a certain size. Clawback applies if you leave your current bank within their subsidy's claw-back window (often 2–3 years).

Monthly Savings

S$0

Current InstalmentS$0

New InstalmentS$0

Break-Even Period-

Refinancing Breakdown

Current Monthly Instalment:S$0

New Monthly Instalment:S$0

Monthly Savings:S$0

Lock-In Penalty:S$0

Legal & Valuation Fees:S$0

Subsidy Clawback:S$0

Total Switching Costs:S$0

Break-Even Period:-

Net Interest Savings Over Remaining Term:S$0

About This Estimate

Break-even period is your total switching costs divided by your monthly savings — how long it takes the savings to cover what refinancing costs you upfront.
Net interest savings compares total interest under your current loan (at its rate, over the remaining term) against the new loan (at the new rate, over the new term) — not just the monthly difference.
A lock-in penalty typically applies only if you redeem or refinance in full during your current bank's lock-in period — usually around 1.5% of your outstanding balance.
Many banks subsidise legal and valuation fees for larger loans, but may claw this back if you switch away again within a set window (often 2–3 years).

Send These Numbers to Darren on WhatsApp

This opens WhatsApp with your figures pre-filled — you review and send it yourself. Nothing is sent automatically.

This calculator provides a general estimate only. Actual savings depend on your bank's exact terms — verify with Darren or your loan officer.

What goes into this

Instalment breakdown

Principal vs. interest, and the full amortisation schedule.

Principal vs. interest

A visual split of what you’ll actually pay over the loan.

Try different tenures

Just change the tenure field to see the monthly instalment shift.

Full schedule

Year-by-year principal, interest and remaining balance.