TDSR calculator Singapore

By MoneyBees

Check your Total Debt Servicing Ratio the way banks must: MAS's 55% limit, the 30% MSR for HDB flats and ECs, the 4% interest rate floor and the haircuts on bonus, rental income and savings.

Calculator

Monthly income

S$

Gross, before your CPF. Add co-borrowers' income together.

S$

Monthly average over the last 12 months.

S$
S$
S$
S$

Debts and the new loan

S$

Car loan, personal loans, other property loans, and the minimum due on each credit card.

% a year
years
S$

Maximum loan

$915,346

limited by TDSR, tested at 4%

Your TDSR

49.1%

limit 55%

Income MAS counts

$9,400

a month

A $800,000 loan fits: at 4% it costs $3,819 a month in the test, though you would pay $3,161 at 2.5%.

Income the bank counts

Monthly
Fixed salary$8,000
Bonus, commission, allowances, after 30% haircut$1,400
Rental income, after 30% haircut$0
Financial assets, after haircuts, over 48 months$0
Total$9,400
55% of income, less other debts$4,370
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Maximum loan by income

Fixed income only, no other debts, 30 years at the 4% floor.

Monthly incomePrivate home (TDSR)HDB or EC (MSR)
$5,000$576,018$314,192
$7,500$864,028$471,288
$10,000$1,152,037$628,384
$15,000$1,728,055$942,576
$20,000$2,304,074$1,256,767

MAS rules this calculator uses

  • TDSR: all monthly debt payments, the new property loan included, may not exceed 55% of gross monthly income. Banks can go above it only in exceptional cases.
  • MSR: for an HDB flat, or an EC bought from the developer that is still within its MOP, property loan payments may not exceed 30% of income.
  • The new property loan is tested at the higher of 4% and the rate after any lock-in. Non-residential property is tested at 5%. Existing loans count at what you pay.
  • Bonus, commission, allowances and rental income count at 70% or less. Savings and investments count spread over 48 months: unpledged at 30% of their value, pledged cash in full and other pledged assets at 70%.
  • Credit cards and other unsecured revolving credit count at the minimum payment due.

An HDB loan follows HDB's own test, with a 3% floor. Use the HDB loan calculator for that.

Worked example

You earn S$8,000 a month plus bonuses that average S$2,000, and pay S$800 a month on a car loan. The bank counts S$8,000 + 70% of S$2,000 = S$9,400. 55% of that is S$5,170, and the car loan leaves S$4,370 a month for the home loan. At the 4% floor over 30 years, S$4,370 a month repays S$915,346, so that is your maximum loan for a private home. For an HDB flat with a bank loan, MSR caps the payment at 30%, or S$2,820, a loan of about S$590,700.

Sources

Figures checked 3 Oct 2026.

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Frequently asked questions

The Total Debt Servicing Ratio is the share of your gross monthly income that goes to debt repayments, the new property loan included. MAS caps it at 55% for property loans from banks and other financial institutions.

Add up your monthly debt payments, with the new property loan worked out at the higher of 4% and its actual rate, and divide by your gross monthly income after MAS's haircuts. S$5,170 of debts on S$9,400 of income is exactly 55%.

TDSR covers all your debts and applies to every property loan from a bank. MSR covers only property loans and applies to HDB flats and to ECs bought from the developer within their minimum occupation period. MSR is capped at 30%, so it is usually the tighter limit for those buyers.

MAS makes banks test the new property loan at the higher of a 4% floor and the rate that applies after any lock-in, so you can still afford it if rates rise. Non-residential property uses 5%. Your real instalment is still worked out at your own rate.

At no more than 70%. Bonus, commission and allowances are averaged over the last 12 months, and both they and rental income take a haircut of at least 30%.

Yes. Savings and investments count as income spread over 48 months. Unpledged, they count at 30% of their value. Cash pledged to the bank for 4 years counts in full, and other pledged assets at 70%. S$500,000 of unpledged cash adds S$3,125 a month.

At the minimum payment due on each card. Secured revolving credit, such as a line backed by property, counts the amount drawn at the 4% rate.

Only in exceptional cases, at the bank's own judgement. If your TDSR is over the limit and someone guarantees the loan, MAS requires the guarantor to become a co-borrower so their income and debts count too.

How we calculate this

  1. Fixed salary counts in full. Bonus, commission, allowances and rental income count at 70%, after MAS's minimum haircut of 30%. Source: MAS: calculating TDSR, interest rate floors, income haircuts and financial assets (updated 29 Sep 2022)
  2. Savings and investments count as income spread over 48 months: unpledged ones at 30% of their value, cash pledged to the bank for 4 years in full, and other pledged assets at 70%. Source: MAS: calculating TDSR, interest rate floors, income haircuts and financial assets (updated 29 Sep 2022)
  3. The new property loan is tested at 4% or its own rate, whichever is higher, and at 5% for non-residential property. Existing loans count at what you actually pay. Source: MAS, MND and HDB: 4% and 5% floors and HDB's 3% floor (29 Sep 2022)
  4. TDSR = (test instalment + other monthly debts) / income counted. It may not exceed 55%. Source: MAS: TDSR threshold of 55% (updated 16 Dec 2021)
  5. For an HDB flat with a bank loan, or an EC from the developer still within its MOP, MSR = (test instalment + other property loans) / income counted, capped at 30%. Source: MAS: MSR and TDSR rules for new housing loans (updated 15 Dec 2021)
  6. The maximum loan is the smaller monthly room under those caps, divided by the instalment for each dollar borrowed at the test rate.

Rounding

Nothing is rounded inside the sums. Dollar figures are shown to the dollar and ratios to one decimal place.

Worked example: the default case

  1. You earn S$8,000 a month plus S$2,000 of bonus and allowances on average, and pay S$800 a month on a car loan. You test an S$800,000 loan for a private home at 2.5% over 30 years.
  2. Income counted: S$8,000 + 70% x S$2,000 = S$9,400.
  3. Room: 55% x S$9,400 = S$5,170, less the S$800 car loan, leaves S$4,370 a month.
  4. Test rate: 4%, since it is higher than 2.5%. At 4% over 30 years, S$4,370 a month repays S$915,346, the maximum loan.
  5. The S$800,000 loan costs S$3,819 a month at 4%, so TDSR = (S$3,819 + S$800) / S$9,400 = 49.1%, inside the 55% cap. At the actual 2.5% you would pay S$3,161 a month.

What this calculator does not cover

  • HDB housing loans, which use HDB's own test with a 3% floor. The HDB loan calculator covers them.
  • A bank's own credit policy, which can be stricter than MAS's rules.
  • Refinancing an existing home loan, where MAS gives some exemptions.

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These calculators provide general estimates for educational purposes only and are not personalised financial advice. Results may rely on rates and rules that change over time, so verify against official sources (IRAS, CPF Board, HDB, MAS) or consult a licensed financial adviser before making decisions.

Junxiong-WFG Organisation is an authorised representative of AIA Financial Advisers Private Limited (Reg. No. 201715016G).