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.
Rates and limits checked on 25 September 2026.
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.
Your loan breakdown
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.
HDB loan vs bank loan
Most buyers of an HDB flat can choose either. The HDB loan asks for less cash and moves slowly. A bank loan usually starts cheaper and can reprice on you. Here is what separates them.
| HDB loan | Bank loan | |
|---|---|---|
| Interest rate | 2.6% a year, pegged at 0.10% above the CPF Ordinary Account rate | Fixed or floating, set by the bank and repriced when the package ends |
| How much you can borrow | Up to 75% of the price, or of the lower of price and valuation on a resale flat | Up to 75% on a first housing loan, less if you break the tenure or age limits |
| Downpayment | The rest of the price, payable with CPF Ordinary Account savings, cash, or both | At least 5% in cash, the rest in cash or CPF |
| Longest repayment | 25 years, or 65 minus your average age, or the remaining lease minus 20 years, whichever is shortest | 30 years on an HDB flat, 35 on private property |
| Income cap | Yes. $16,000 a month for families, $8,000 for singles under the Single Singapore Citizen Scheme | None |
| Who can take it | At least one Singapore Citizen, and your household must not have taken 2 or more HDB loans before | Anyone the bank approves, including buyers of private property |
| Switching later | You can refinance to a bank loan | You cannot switch back to an HDB loan |
The trade-off is stability against price. HDB's rate has sat at 2.6% for years because it follows the CPF Ordinary Account rate, so your payment rarely moves. A bank package can undercut it, then reprice when the fixed period ends. If you want certainty, or you would rather keep your cash, the HDB loan is the simpler choice. If you can absorb a rate change and want the lower starting payment, compare bank packages. Put each rate into the calculator above to see the gap on your own numbers. HDB publishes the full eligibility conditions.
Using CPF for your mortgage
Your CPF Ordinary Account (OA) savings can pay the downpayment, the monthly instalments, or both. How much you can use depends on the remaining lease, the type of property and the type of loan.
If the lease lasts the youngest owner using CPF until age 95, you can use your OA up to the lower of the purchase price and the valuation at the time of purchase. On a bank loan you can go further, up to 120% of that figure, once you have set aside your Basic Retirement Sum. A new flat bought with an HDB loan has no such cap: OA savings can cover the full purchase price. If the lease will not reach age 95, the limit is pro-rated and no one can use more OA for the property once the household hits it.
The part people forget is accrued interest. Every dollar of OA you put into the home stops earning CPF interest, and when you sell you must return what you used plus the interest it would have earned. That refund comes out of the sale proceeds before you see any cash, which is why paying some of the instalment in cash is worth considering.
CPF's own housing usage calculator gives you the exact figure for a specific property. Read CPF's guide to how much you can use.
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?+
No. 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 you can support. Use our affordability calculator at /affordability-calculator for that.
What is the HDB loan interest rate?+
2.6% a year for 1 July to 30 September 2026. HDB pegs its concessionary rate at 0.10% above the CPF Ordinary Account rate and reviews it every quarter, in January, April, July and October.
How much can I borrow from HDB?+
Up to 75% of the purchase price on a new flat, or 75% of the lower of the resale price and the flat's value on a resale flat. Repayment is capped at the shortest of 25 years, 65 minus your average age, or the remaining lease minus 20 years.
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. The HDB concessionary rate, loan-to-value limit, repayment period and income ceilings come from HDB, and the CPF usage limits from the CPF Board. All figures were checked on 25 September 2026. HDB reviews its rate every quarter, so confirm with your bank, HDB or a licensed salesperson before you commit to a purchase.