Affordability Calculator

TDSR & MSR assessment — know your ceiling before you shop

Your financials

Monthly gross income

Before CPF and income tax deductions

Monthly debt obligations

Credit cards (min payment), car loan, student loan, etc.

Property type

Only TDSR applies (55% cap). MSR does not apply.

Loan tenure25 yrs

5 yrs35 yrs

MAS requires banks to use a minimum 4% stress test rate for affordability — this calculator uses exactly that.

Maximum property price

$1,389,318

Based on 75% LTV · 25-year tenure · 4% stress test rate

Max monthly mortgage

$5,500

TDSR-constrained

Max loan amount

$1,041,989

At 4% for 25 yrs

Debt servicing ratios

TDSR — Total Debt Servicing Ratio55.0% / 55% limit

Existing debts ($0/mo)Mortgage ($5,500/mo)

Gross monthly income	$10,000
TDSR limit (55%)	$5,500
Existing monthly debts	− $0
Available for mortgage	$5,500
Max property price	$1,389,318

What is TDSR?

Total Debt Servicing Ratio caps all monthly debt repayments — including the new mortgage — at 55% of gross income. Introduced by MAS in 2013 to ensure responsible borrowing.

What is MSR?

Mortgage Servicing Ratio applies only to HDB flats and Executive Condominiums. Your mortgage alone cannot exceed 30% of gross income — stricter than TDSR.

Why the 4% stress test?

MAS mandates that banks test affordability at a minimum of 4% p.a., regardless of the actual loan rate. This ensures borrowers can still service the loan if rates rise.

Tips to improve affordability

Pay down existing debts before applying. Include spouse's income for joint assessment. Extend tenure to lower monthly obligations. Opt for HDB or EC if MSR is your constraint.

Results are indicative. Based on MAS TDSR/MSR rules, 75% LTV, 4% stress test rate. Actual loan approval depends on credit assessment, CPF contributions, age, and bank policy. Consult a licensed mortgage adviser before committing.