Mortgage Calculator Singapore
See what a home loan could cost each month and over its full term. You can adjust the details to compare your options.
S$ 1,125,000 borrowed, S$ 375,000 paid up front.
Choose how much of the property price you want to borrow.
Enter the interest rate quoted by your bank.
Choose how long you want to take to repay the loan.
Estimated monthly repayment
S$ 5,335
over 25 years at 3%
Split shown for your first payment. Interest falls and principal rises every month after that.
What the purchase costs you
- Loan amount
- S$ 1,125,000
- Downpayment
- S$ 375,000
- Total interest over the loan
- S$ 475,463
- Total repaid to the bank
- S$ 1,600,463
Other purchase costs sit on top of your downpayment.
How the balance falls each year
Each bar is one year. Blue is principal, gold is interest.
These figures are an estimate for planning. Your bank sets the final numbers. For the rules on loan limits and tenure, see MAS and HDB.
How the calculator works
The formula, and where the split between principal and interest comes from.
Your bank charges interest on the outstanding balance, so your first payment is mostly interest. The split shifts towards principal each month.
M = P × [ r(1 + r)n ] ÷ [ (1 + r)n − 1 ]
P is the loan, r is the monthly interest rate and n is the number of monthly payments. Every bank in Singapore uses this formula.
What caps your loan
The limits this calculator does not enforce.
Loan-to-value. A bank can lend up to 75% on a first home loan. You must pay at least 5% of the price in cash, not CPF.
Tenure. To keep that ceiling, choose a tenure of 30 years or less, or 25 on an HDB flat, and keep your age plus the tenure at 65 or less. Break either limit and the ceiling falls to 55%, while the cash minimum doubles to 10%. Banks set a hard stop of 35 years for private property and 30 years for an HDB flat.
The stress rate. Banks test you at the higher of 4% or the rate your package charges after the fixed period ends. Try the higher rate in the calculator above to see how the payment changes.
Costs this calculator leaves out
Cash you need on top of the downpayment.
Buyer's Stamp Duty on a S$1,500,000 home is S$44,600.
Additional Buyer's Stamp Duty applies if you already own a home, or if you are a Permanent Resident or a foreigner. A Singapore Citizen buying a second property pays 20%, which adds S$300,000 on that home.
Legal fees, valuation and the option fee are cash on top of your downpayment.
Common questions
What buyers ask us most about home loans.
What are TDSR and MSR?+
TDSR limits all your monthly debt repayments together as a share of your gross income. MSR caps HDB and Executive Condominium mortgages at 30% of your gross monthly income.
Does a longer tenure cost me more?+
A longer tenure lowers your monthly payment and raises the total interest. A 35-year tenure costs about S$218,000 more in interest than a 25-year tenure on the same loan.
Is this the same as an affordability calculator?+
This calculator starts from a price you have in mind and works out the loan costs. An affordability calculator starts from your income and works out the price, and ours is coming.
Stamp duty rates come from the IRAS stamp duty table. Loan-to-value bands and cash minimums come from MAS Notice 632, while the MSR cap and stress rate come from MAS Notice 645. All figures were checked on 20 August 2026. Rules change, so confirm with your bank or a licensed salesperson before you commit to a purchase.