Vela Bay TDSR Calculator
Before you visit a showflat or shortlist unit types, the first question to answer is how much you can actually borrow. In Singapore, every home loan is subject to the Total Debt Servicing Ratio (TDSR) framework, a regulatory cap set by the Monetary Authority of Singapore (MAS) that limits your total monthly debt repayments to 55% of your gross monthly income.
This applies to all borrowers regardless of which bank you approach. It includes not just your new mortgage, but also existing car loans, personal loans, renovation loans, student loans, and the minimum monthly repayment on any credit card balances. If your total commitments (existing plus proposed mortgage) exceed 55% of your gross income, the loan will not be approved, no exceptions.
For TDSR computation, MAS also imposes a minimum stress-test interest rate of 4.0% per annum, even if the bank’s actual rate is lower. This ensures borrowers can still service their loan if interest rates rise. Additionally, the Loan-to-Value (LTV) ratio determines the maximum percentage of the property price you can finance, 75% for your first property with no outstanding housing loans, dropping to 45% for a second property and 35% for a third or subsequent.
The calculator below lets you input your income, existing loan obligations, preferred tenure, and property number to see your maximum eligible loan amount and the corresponding property price you can afford.
This calculator is for your own planning, for a personalised walkthrough of your loan eligibility, register your interest or WhatsApp our sales team and we will run through your numbers with you.
Disclaimer: This calculator is provided for general illustration purposes only and does not constitute financial, legal, or professional advice. All figures are estimates based on the Total Debt Servicing Ratio (TDSR) framework set by the Monetary Authority of Singapore (MAS). Actual loan approval is subject to the lending bank's credit assessment, which may include additional criteria such as age, employment type, credit history, income verification methodology, and internal risk policies. Variable income (commissions, bonuses, rental income) may be assessed at a haircut by lenders. MAS mandates a minimum interest rate of 4.0% p.a. for TDSR computation regardless of the actual loan rate offered. The LTV limits shown assume no outstanding housing loans for 1st property, one outstanding loan for 2nd property, and two or more for 3rd and subsequent. We make no representation or warranty as to the accuracy, completeness, or reliability of the information generated by this tool. Users should consult a qualified mortgage banker or financial adviser before making any purchase decisions. By using this calculator, you acknowledge that velabaycondo.sg and its representatives accept no liability for any loss, damage, or inconvenience arising from reliance on the results.
How to Use This Calculator — Worked Example
Suppose a couple is considering a unit at Vela Bay priced at around S$2,000,000. Their combined gross monthly income is S$15,000, they have an existing S$800/month car loan, and they plan to take a 25-year mortgage on their first property. Here is how to read the results.
What is TDSR and why does it matter? The Total Debt Servicing Ratio is a rule set by the Monetary Authority of Singapore (MAS) that caps your total monthly loan repayments — including the new mortgage — at 55% of your gross monthly income. It does not matter how much cash you have or how large your CPF balance is. If your TDSR exceeds 55%, no bank in Singapore can approve your loan. This is a hard regulatory ceiling, not a bank policy.
Step 1 — Your TDSR allowance. 55% of S$15,000 = S$8,250 per month. This is the maximum total debt servicing the couple is allowed across all loans.
Step 2 — Subtract existing commitments. The car loan uses S$800/month of that allowance. So the remaining capacity for a new mortgage is S$8,250 − S$800 = S$7,450 per month.
Step 3 — Convert to maximum loan amount. At MAS's stress-test rate of 4.0% p.a. over 25 years, a monthly repayment of S$7,450 supports a loan of approximately S$1,414,000. This is the maximum the bank can lend.
Step 4 — Check against LTV limit. For a first property, the maximum Loan-to-Value is 75%. On a S$2,000,000 unit, 75% LTV = S$1,500,000. Since the TDSR-derived maximum (S$1,414,000) is lower than the LTV ceiling (S$1,500,000), TDSR is the binding constraint here. The couple can borrow up to S$1,414,000 and must fund the remaining S$586,000 from cash and/or CPF.
Step 5 — What if the numbers don't work? Three levers to improve eligibility: increase the loan tenure (30 years allows a higher loan for the same monthly payment), reduce existing commitments (paying off the car loan frees up S$800/month of TDSR capacity, adding roughly S$152,000 to your maximum loan), or add a co-borrower's income to raise the 55% allowance. The calculator lets you adjust all three to see the impact.
One important note on interest rate. Even if your bank offers you 2.5% or 3.0%, MAS requires all TDSR calculations to use a floor rate of 4.0% p.a. This stress-test ensures you can still service the loan if rates rise. The calculator defaults to 4.0% for this reason — selecting a lower rate will show a more optimistic picture, but your bank will assess you at 4.0% regardless.