Calculate your monthly mortgage, total interest over loan tenure, Buyer's Stamp Duty, and TDSR affordability check. Instantly.

Calculate your estimated monthly repayments.
Estimated Monthly Repayment
Based on a loan of $1,125,000
Within TDSR limit (55% = $8,250/mo)
Want to be sure? Get an exact financial assessment based on your CPF and income.
Get Detailed Assessment* Disclaimer: This calculator is for illustrative purposes only. Actual interest rates, loan amounts, and approval are subject to MAS regulations (TDSR, MSR) and bank assessments.
Singapore mortgages are regulated by MAS (Monetary Authority of Singapore) with several key rules that affect how much you can borrow and what your monthly payment will be.
Source: MAS Notice 632 (residential property loans).
Your total monthly debt obligations (including the new mortgage, car loans, credit cards minimum payments, personal loans, etc.) cannot exceed 55% of your gross monthly income. This is calculated at a stress test rate (currently 4% for residential property loans) to ensure you can still service the loan if rates rise.
For HDB flats and Executive Condominiums from developers, your mortgage payment cannot exceed 30% of gross monthly income. This is stricter than TDSR and often limits how much HDB buyers can borrow even when their total debt is well within TDSR.
Regardless of CPF balance, a minimum 5% of the purchase price must be paid in cash (for first-time buyers with max 75% LTV). The remainder of the downpayment can be paid from CPF Ordinary Account or cash. For lower LTV loans, the minimum cash requirement is higher.
Monthly mortgage isn't your only recurring cost. Budget for:
Monthly mortgage payment is calculated using the standard amortization formula: M = P × [r(1+r)^n] / [(1+r)^n - 1], where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of monthly payments. The calculator handles this automatically. Just enter property price, downpayment, interest rate, and loan tenure.
For residential property: LTV (Loan-to-Value) is capped at 75% for your first housing loan, 45% for your second, and 35% for your third onwards. However, actual approval depends on TDSR (Total Debt Servicing Ratio capped at 55% of gross monthly income) and, for HDB/EC loans, MSR (Mortgage Servicing Ratio capped at 30%).
As of April 2026, Singapore mortgage rates are in the ~1.4-2.5% range for fixed packages, with SORA-pegged floating packages tracking 3-month compounded SORA (~1.2% as at late 2025) plus a bank spread of 0.5-0.8%. Exact rates vary by bank, lock-in period, and your loan profile. Regardless of the actual rate, MAS requires banks to apply a 4% stress test rate in the TDSR calculation to ensure affordability if rates rise. Always check current SORA at the MAS eService and current bank packages before committing.
Three main levers: (1) Longer loan tenure (max 35 years for private, 25 for HDB) reduces monthly payment but increases total interest. (2) Larger downpayment reduces the principal. (3) Lower interest rate via refinancing or better loan package. Each has trade-offs. Talk to a mortgage broker or Jet about what's optimal for your situation.
This calculator shows principal + interest only. Your total monthly housing cost also includes: maintenance/condo fees ($300-800+ for condos, $80-200 for HDB), property tax (for owner-occupier: progressive rates starting from 0% on AV up to $12K), insurance (mortgage reducing term + fire insurance, ~$50-150/month), and utilities. Budget at least an extra 15-20% on top of the mortgage for these costs.
Yes. CPF Ordinary Account (OA) can be used for downpayment (at least 5% must be cash, the rest can be CPF), monthly repayments, and stamp duty. Usage is capped at the Valuation Limit and Withdrawal Limit based on property age, tenure, and age of owner. CPF used must be refunded with accrued interest when you sell.
At 75% LTV, your loan is $1.125M. At current fixed rates (~1.5% p.a.) over 25 years, monthly payment is roughly $4,500. At 2.5%, roughly $5,050. At the 4% stress test rate, roughly $5,930. Add maintenance fees ($300-800/mo) and property tax for total housing cost. Use the calculator above with your actual numbers.
Fixed rates (currently ~1.4-2.5%) lock your payment for 2-3 years, giving predictability. Floating rates (SORA-pegged, currently ~1.0-1.5% all-in) are cheaper now but can rise. Most buyers take fixed for the first 2-3 years, then refinance. If you plan to sell within 3-5 years, floating may save you money. If holding long-term, fixed gives peace of mind. Always compare at least 3 bank packages.
Drop your details and I'll work out the exact figures — ABSD, loan eligibility, monthly payment, and total cost — personalised to your profile.
Jet works with multiple banks and mortgage brokers to get you the best package for your situation. Fixed vs floating, lock-in periods, and total cost over the loan tenure.