PropertySmartSG tools

Mortgage calculator

Turn a property price into a monthly payment estimate. Test loan amount, down payment, interest rate, tenure and total interest before you fall in love with the listing.

Better inputs

Anchor the calculator with real transaction pages

Before you rely on an estimate, open the matching project or district and use the latest rent, sale price, PSF and transaction depth as your starting point.

Project pages Use exact condo rent, sale, PSF and transaction depth when the project is known. District pages Compare the wider market when a project has thin or uneven transaction history. HDB resale pages Use estate and street resale prices when the decision involves HDB resale. Data freshness Check the latest refreshed month before making a time-sensitive decision. Rankings Find high-rent, high-sale, active and stable-rent projects before narrowing the calculator inputs.

Monthly payment - Principal and interest

Loan amount - After down payment

Down payment cash - Before stamp duty

Total interest - Over full tenure

Projects around this mortgage scenario

Compare the monthly payment estimate against projects with recent sales near the price you entered.

6 transaction-backed matches

Sale benchmarks Most active

Mortgage calculator FAQ

Quick answers about loan payments, interest rates, tenure and upfront cash.

What does the monthly payment include?

The mortgage calculator estimates principal and interest only. It does not include stamp duty, legal fees, valuation fees, insurance, property tax, MCST fees or refinancing costs.

Why does the interest rate matter so much?

A small rate change can materially change the monthly payment and total interest over a long tenure. It is worth testing several rates before deciding what feels comfortable.

Is the down payment the same as total cash needed?

No. Down payment is only one part of the upfront cash stack. A buyer also needs to consider BSD, ABSD if applicable, lawyer fees, valuation fees and other purchase costs.

Should I test more than one interest rate?

Yes. Run a base case and a stress case. A property that looks fine at one rate can feel very different if rates rise or if the bank uses a higher assessment rate.

Does this calculator estimate CPF usage?

No. It treats the down payment as a planning amount. Actual cash and CPF split depends on CPF rules, valuation, age, loan terms and your personal balances.

Why is total interest so high on long loans?

Longer tenures spread the payment out, but interest accrues over more months. The lower monthly payment can come with a much higher total interest cost.

How to use this estimate

Use the result as a decision aid, then verify the numbers that can change your cashflow, tax bill or approval.

Use real market inputs

A calculator is only as good as the rent, price, rate, loan and buyer profile you put into it. Start from a project page or district page when possible.

Treat this as an estimate

These results are for comparison and planning. Confirm taxes with IRAS, loan terms with your bank, and legal dates with your lawyer.

Stress-test the decision

Try a higher interest rate, lower rent, longer vacancy, bigger cash buffer or different holding period before treating the number as comfortable.