Mortgage Calculator
Calculate your monthly repayment, total interest cost, and check your TDSR headroom — for HDB loans, bank loans, and new launch condos.
Monthly Repayment
Total Interest
Total Paid
principal + interest
TDSR — At Your Interest Rate
TDSR limit is 55%. Monthly debt = $
Enter your gross monthly income above to check TDSR.
TDSR — Bank Stress Test (4% floor)
Banks assess TDSR at a minimum stress rate of 4% p.a. regardless of the actual offered rate. Stressed monthly repayment: $
Property Price
Loan Amount
Interest Rate
Tenure
Banks may lend up to 75% of the property value (lower of purchase price or valuation) for the first housing loan, if the tenure is 30 years or less. The remaining 25% (minimum 5% in cash, 20% in cash or CPF) must be paid upfront.
1st loan (bank)
Up to 75%
2nd loan (bank)
Up to 45%
HDB loan
Up to 80%
MAS limits total monthly debt repayments to 55% of gross monthly income. This includes the mortgage, car loan, credit card minimum payments, personal loans, and any other debt. Banks assess this at a minimum stress interest rate of 4% p.a. for private property loans.
For HDB flats (both HDB loan and bank loan), an additional rule applies: the monthly mortgage repayment cannot exceed 30% of gross monthly income. This is tighter than TDSR and is the binding constraint for most HDB buyers.
Your CPF Ordinary Account (OA) can be used to pay monthly mortgage instalments for both HDB and private residential loans, up to the Valuation Limit (and capped at the Withdrawal Limit of 120% of VL). See the CPF Mortgage Guide for a full breakdown.
Current floating rate packages (SORA-pegged) range from approximately 3.0% to 4.0% p.a. Fixed rate packages are typically slightly higher. Use 3.5% as a mid-range planning estimate; use 4.0% to stress-test your affordability. Always check live rates with banks before committing.
For bank loans on private property: 30 years (or up to 35 years if LTV is 75% or below on first loan). For HDB concessionary loans: 25 years. The tenure is also capped so the loan ends before the borrower turns 65 (or 70 for some lenders).
For a $1.5M property with a 75% bank loan ($1.125M): minimum 5% cash ($75,000) + up to 20% in CPF or cash ($300,000) = $375,000 total downpayment. Plus ABSD and BSD on top. A full cost breakdown depends on your buyer profile — speak to an agent or banker before budgeting.
Yes. Refinancing to a lower rate or extending the tenure can reduce monthly repayments. However, extending tenure increases total interest paid. When refinancing, remember to update your CPF Monthly Instalment at my.cpf.gov.sg — CPF does not auto-update.
Disclaimer
This calculator is for general planning purposes only. Results are estimates based on the standard reducing-balance formula and do not account for lock-in periods, prepayment penalties, or variable rate changes. Actual loan eligibility, approved rate, and tenure depend on the bank's assessment of your income, credit profile, and outstanding debts.
This does not constitute financial advice. Always obtain an In-Principle Approval (IPA) from a licensed bank before committing to a property purchase. Joanne Low (CEA Reg. No. R062312E) is a licensed real estate salesperson, not a financial adviser or mortgage broker.
I can help you map out the full purchase cost — downpayment, stamp duty, CPF plan, and monthly cashflow — so you go in with eyes open.
WhatsApp JoanneCEA Reg. No. R062312E · Huttons Asia Pte Ltd