Calculate Your Total Debt Servicing Ratio (TDSR)
Understand your loan eligibility for Singapore property purchases with our free TDSR calculator. Real-time calculations based on MAS regulations.
TDSR Calculation Disclaimer
This calculator estimates Total Debt Servicing Ratio (TDSR) based on MAS Notice 645 guidelines. Results are estimates only. Always verify with your mortgage broker or bank for final TDSR assessment.
Actual results may vary based on:
- Bank-specific income assessment policies
- Debt obligation verification
- Credit bureau data
- Loan approval criteria
Understanding TDSR
What is TDSR?
TDSR (Total Debt Servicing Ratio) is a financial metric used by the Monetary Authority of Singapore (MAS) to ensure borrowers do not overextend themselves financially.
Introduced in 2013, TDSR limits borrowers to 55% of their gross monthly income for all debt obligations. This includes property loans, car loans, personal loans, and credit card debts.
TDSR applies to all property loans in Singapore, whether HDB, private residential, or commercial property.
Step by Step
How to Calculate TDSR
Calculate total monthly debt obligations
Include all loans: property mortgage, car loan, personal loans, student loans, and minimum credit card payments (3% of outstanding balance).
Determine gross monthly income
Include salary, bonuses (averaged over 12 months), rental income, and other verifiable income sources.
Apply TDSR formula
TDSR = (Total monthly debt obligations / Gross monthly income) × 100
Example Calculation
Scenario: Single buyer with existing car loan
Gross Monthly Income: $8,000
Existing Debts: $800/month
Property Loan: $4,000/month
Total Debts: $4,800/month
TDSR: 60%
Exceeds 55% TDSR limit - would need to reduce debts
Comparison
TDSR vs MSR: What's the Difference?
| Metric | TDSR | MSR |
|---|---|---|
| Applies to | All loans (property, car, credit cards, personal) | Housing loans only |
| Limit | 55% of gross monthly income | 30% (HDB/EC) or 55% (private property) |
| Calculation | (Total debts / Gross income) × 100 | (Housing loan only / Gross income) × 100 |
| When it applies | All property purchases | Additional constraint on top of TDSR |
Real Scenarios
TDSR Calculation Examples
Single buyer, no existing loans
Income: $8,000
Debts: $0
TDSR: 0% (before property loan)
✅ Eligible
Couple buying second property
Income: $15,000
Debts: $3,000
TDSR: 20% (before property loan)
✅ Eligible
Buyer with car loan and credit cards
Income: $10,000
Debts: $2,500
TDSR: 25% (before property loan)
✅ Eligible
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Frequently Asked Questions
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Upgrade Planning
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Model Complex TDSR Scenarios in LEVR™
Go beyond basic calculations. Compare multiple property scenarios, stress-test assumptions, and create transparent property strategies.
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