Check your Total Debt Servicing Ratio and Mortgage Servicing Ratio limits.
TDSR Limit (55%)-
MSR Limit (30%)-
Max Monthly Payment-
Max Loan Amount-
Max Property Price-
Down Payment Amount-
How to Use the Tdsr Calculator
Key Takeaways
TDSR caps total debt obligations at 55% of gross monthly income for all property loans.
MSR caps mortgage payments at 30% of gross income — applies only to HDB and EC purchases.
Existing car loans, credit card debts, and personal loans all reduce your borrowing capacity.
Banks stress-test at 4% (or higher) interest rate, not your actual rate.
What It Does
How much can you actually borrow? Singapore's TDSR (55%) and MSR (30%) rules determine your maximum loan. Enter your income and existing debts to instantly see the most expensive property you can afford. Essential before you start viewing showflats.
You can find this calculator in the Calculators tab on ShiokNest. It updates results instantly as you adjust inputs — no waiting, no page reloads.
Why It Matters
TDSR and MSR are the legal frameworks that determine how much you can borrow. No amount of savings can override these ratios — they are hardcoded into banking regulations. Understanding your limits before you start property hunting saves you from:
How It Works
Navigate to Calculators — Click the "Calculators" tab in the ShiokNest navigation bar. All 26 calculators are grouped by purpose for easy access.
Select the calculator — Choose "How to Check TDSR and MSR Affordability" from the calculator list. You will see default values already loaded so you can explore immediately.
️ Enter your values — Replace the defaults with your own numbers. The key fields are:
Review the results — The calculator updates instantly as you change any input. KPI cards show your maximum monthly payment under both TDSR and MSR, plus the maximum property price you can target.
Run what-if scenarios — This is where the real power lies. Change one variable at a time to see its impact. For example, try increasing the interest rate by 1% or extending your holding period by 5 years. Note how the results shift.
Compare and decide — Run 2-3 different scenarios and note the results. This gives you a range of outcomes to base your decision on, rather than relying on a single projection.
Examples
Meet Daniel, earning $12,000/month gross with no existing debts. He wants to know the m…
Inputs
Monthly Gross Income
$12,000
Existing Monthly Debts
$0
Property Type
Private Residential
Loan Tenure
25 years
Stress-Test Rate
4.0%
Results
Max Payment (TDSR 55%)
$6,600/mo
Max Payment (MSR 30%)
$3,600/mo
Max Property Price (TDSR)
~$1,667,000
How to read this:
How TDSR works: The bank caps Daniel's total monthly debt payments at 55% of his gross income. With $12,000/month income and no debts, he can allocate up to $6,600/month to his mortgage. At the 4% stress-test rate over 25 years, this translates to a maximum loan of approximately $1,250,000. What if Daniel has a car loan? If he pays $800/month for his car, his maximum mortgage payment drops to $5,800/month, and his maximum property price falls to approximately $1,465,000. That is a reduction of $202,000 in buying power — just from a car loan.
Priya: $8k/month, $800 car loan + $300 student loan — how much does debt cost her?
Inputs
Monthly Gross Income
$8,000
Car Loan Payment
$800/month
Student Loan Payment
$300/month
Property Type
Private Residential
Loan Tenure
25 years
Results
TDSR Limit (55%)
$4,400/month
Available after debts
$3,300/month
Max Loan (stress-test 4%)
~$610,000
Max Property (75% LTV)
~$813,000
How to read this:
Priya's $1,100/month in existing debt obligations reduces her available mortgage allocation from $4,400 to $3,300/month — a 25% cut. At the 4% stress-test rate over 25 years, that available amount supports a maximum loan of roughly $610,000 and a maximum property price of $813,000. For comparison, without the car loan and student loan, her maximum price would be ~$1,083,000 — $270,000 higher. This difference illustrates why clearing existing debts before a property purchase often has a fa...
Tips & Pitfalls
Expert Tips
Use realistic assumptions — Singapore condo appreciation has historically averaged 2-4% per year. Avoid overly optimistic projections. When in doubt, use 3% as a baseline.
Include ALL debts — Car loans, credit card minimum payments, study loans, personal loans, and even guarantor obligations count toward TDSR.
Pay off debts before applying — Clearing a $500/month car payment could increase your maximum property budget by $150K or more.
Common Pitfalls
Underestimating existing debt obligations when calculating TDSR
Using net income instead of gross income for TDSR calculation
Forgetting that banks stress-test at 4%, not your actual rate
Frequently Asked Questions
What counts as "existing obligations" for TDSR?
All monthly debt repayments count: car loans, personal loans, renovation loans, student loans, credit card minimum payments (3.5% of outstanding balance), and any existing property loan instalments.
Does TDSR apply to cash buyers?
No. TDSR only applies when you take a property loan from a financial institution. If you purchase entirely with cash (no mortgage), TDSR does not restrict you.
What is the difference between TDSR and MSR?
TDSR (55%) caps ALL debt obligations relative to income and applies to all property loans. MSR (30%) caps only the property loan instalment and applies only to HDB and Executive Condo purchases.
What interest rate do banks use for TDSR stress testing?
Banks use a stress-test rate of at least 4% per annum (or the actual rate if higher) when computing TDSR. This ensures borrowers can handle rate increases.
Can variable income (bonuses, commissions) be used for TDSR?
Yes, but banks typically apply a 30% haircut to variable income. Only the discounted amount is counted toward your gross monthly income for TDSR calculation.