Singapore Debt-to-Income (DTI) Calculator (2026)
Check your debt-to-income ratio against MAS TDSR (55%) and HDB MSR (30%) thresholds. Enter your gross income and monthly obligations — result updates instantly.
Gross Monthly Income
Monthly Debt Obligations
Enter the monthly repayment amount for each. Leave blank if not applicable.
Result updates as you type
Debt-to-Income Ratio
22.5%
$1,800 monthly debt ÷ $8,000 gross income
DTI vs MAS thresholds
Total monthly debt
$1,800
Gross monthly income
$8,000
What this means for your loan eligibility
Your debt load is within both the MAS MSR (30%) and TDSR (55%) limits. HDB and bank home loan applications should proceed without a debt-servicing barrier. You have capacity to take on additional credit if needed.
MAS TDSR & MSR at a Glance
Singapore has two key debt-servicing rules enforced by MAS and HDB. Understanding both helps you plan your loan applications accurately.
| Rule | Limit | Applies to | Authority |
|---|---|---|---|
| TDSR — Total Debt Servicing Ratio | Max 55% | All MAS-regulated property loans (HDB bank loans, private property, ECs) | MAS (MAS Notice 645) |
| MSR — Mortgage Servicing Ratio | Max 30% | HDB flat loans (HDB concessionary & bank loans) and EC bank loans | MAS / HDB |
| Recommended — financial planners | Below 35% | General guideline for financial health and loan application buffer | MoneySense / financial planners |
| HDB concessionary loan — no TDSR | MSR only | HDB direct loan applicants — MSR (30%) applies; MAS TDSR framework does not | HDB |
Both MSR and TDSR apply simultaneously when you use a bank loan for an HDB flat or EC. You must satisfy both limits.
How DTI is Calculated
Your Debt-to-Income ratio divides your total monthly debt obligations by your gross monthly income (before CPF deductions and income tax). MAS uses this metric to set borrowing limits across all regulated lenders.
DTI = (Total monthly debt ÷ Gross monthly income) × 100
Example:
$2,200 debt ÷ $8,000 income × 100 = 27.5%
When you apply for a new loan, the bank includes the proposed new repayment in the debt total — so your DTI before application is your baseline capacity. The lower your existing DTI, the more you can borrow.
Common DTI Mistakes in Singapore
Using take-home pay instead of gross income
MAS TDSR is calculated on gross income before CPF deductions and tax. Using your net take-home amount will overstate your DTI and underestimate your borrowing capacity.
Forgetting credit card minimum payments
Banks count the minimum monthly payment on all credit cards, even if you pay the full statement balance each month. Enter the minimum payment amount, not your typical full payment.
Not accounting for the new loan repayment
When you apply for a mortgage, the bank adds the proposed monthly instalment to your existing debt total. Use our Mortgage Calculator to estimate the new repayment, then add it here to check your post-loan DTI.
Counting variable income at 100%
Banks typically apply a 30% haircut to commissions, bonuses, and rental income (i.e. count 70% of the 12-month average). If your income is partly variable, your effective qualifying income for TDSR purposes may be lower than your gross figure.
Frequently Asked Questions
What is the Total Debt Servicing Ratio (TDSR) in Singapore?expand_more
TDSR is the maximum portion of your gross monthly income that can go towards all debt repayments. MAS sets the TDSR limit at 55% — meaning your total monthly debt obligations (including the new loan you are applying for) cannot exceed 55% of your gross monthly income. Banks and finance companies are legally required to apply this rule.
What is the Mortgage Servicing Ratio (MSR)?expand_more
MSR applies specifically to HDB flat loans and bank loans for executive condominiums (ECs). It caps your monthly housing loan repayment at 30% of your gross monthly income. This is a stricter rule that applies on top of the TDSR for HDB purchases.
What counts as debt in the TDSR calculation?expand_more
All outstanding credit facilities count: mortgages, car loans, personal loans, credit card balances (minimum payment × 12 ÷ 12), renovation loans, student loans, and any other MAS-regulated credit. Income-producing loans (e.g. investment property loans) have a 30% haircut applied.
What income is counted in the TDSR calculation?expand_more
Gross monthly income — before CPF and tax. Variable income (bonuses, commissions, rental) is typically included at 70% of the average over 12 months. Banks may apply different haircuts; this calculator uses full gross income as a reference baseline.
Can I still get a loan if my DTI exceeds 55%?expand_more
Generally no for MAS-regulated lenders. Licensed moneylenders in Singapore are not bound by TDSR rules but charge significantly higher rates. If your DTI is above 55%, focus on paying down existing debt before applying for new credit.
How does the TDSR affect HDB flat applications?expand_more
For HDB flat applications using an HDB concessionary loan, the HDB applies the MSR (30%) but not the bank TDSR framework. For bank loans on HDB flats, both MSR (30%) and TDSR (55%) apply simultaneously — you must satisfy both.
What is a healthy DTI ratio in Singapore?expand_more
Financial planners generally recommend keeping total debt repayments below 30%–35% of gross income. The 30% MSR limit for HDB mortgages reflects this principle. Being well below 55% gives you a buffer for emergencies and future loan applications.
Does my CPF monthly contribution count as debt?expand_more
No. CPF contributions are not counted as debt in the TDSR calculation. TDSR applies only to credit obligations — loans and outstanding credit lines.
Sources
- • MAS (mas.gov.sg) — TDSR framework and MAS Notice 645 (Notice on Residential Property Loans)
- • HDB (hdb.gov.sg) — Mortgage Servicing Ratio (MSR) rules for HDB flat and EC loans
- • MoneySense (moneysense.gov.sg) — Debt management and responsible borrowing guidelines
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