How much mortgage can you afford?
Start from your salary, your dream loan, or the price tag. The calculator applies Singapore's TDSR (Total Debt Servicing Ratio), MSR (Mortgage Servicing Ratio) and stress-test rules, and tells you which rule is actually stopping you.
Your situation
Who is buying, and what kind of home and loan.
HDB concessionary loans need at least one Singapore Citizen applicant.
MSR (Mortgage Servicing Ratio): your home loan instalment cannot exceed 30% of monthly income.
Income and debts
Use gross monthly income before CPF, the way banks assess it.
Car loans, credit card minimums, personal loans, study loans. These count toward the 55% TDSR cap on bank loans. TDSR (Total Debt Servicing Ratio): all your debt payments combined cannot exceed 55% of monthly income.
Target loan
How much do you want to borrow?
Loan terms
The rate and tenure the bank will assess you on.
Banks assess you at the higher of your actual rate or 4% p.a., so sliding below 4% changes your monthly payment but not your assessed affordability.
The HDB concessionary loan charges a flat 2.6% p.a. and is not stress-tested, so there is no rate to adjust.
HDB loans cap at 25 years. A longer tenure lowers the monthly instalment but raises total interest.
How this estimate works
This calculator applies the financing rules lenders actually use in Singapore, then converts the binding rule into a loan amount:
- TDSR 55% (Total Debt Servicing Ratio): on bank loans, every monthly debt payment (home loan included) must fit within 55% of gross monthly income.
- MSR 30% (Mortgage Servicing Ratio): on HDB flats, the home loan instalment alone must fit within 30% of gross monthly income.
- 4% stress test: bank loans are assessed at the higher of your actual rate or 4% p.a. HDB concessionary loans use the flat 2.6% rate.
- LTV 75%: the loan can cover at most 75% of the price, so the downpayment is 25%. Bank loans need at least 5% of the price in cash.
- Tenure: up to 25 years on HDB loans, 30 years on bank loans, subject to age limits.
- HDB loan eligibility: at least one applicant must be a Singapore Citizen, and gross monthly household income must not exceed S$16,000 (S$8,000 for single buyers). This calculator caps the income slider at that ceiling while the HDB loan is selected.
Buyer's stamp duty is added on the price: 1% on the first S$180k, 2% on the next S$180k, 3% on the next S$640k, 4% on the next S$500k, 5% on the next S$1.5M and 6% above S$3M. Assumes a first property purchase, with no Additional Buyer's Stamp Duty. HDB concessionary loans additionally require applicants to be employed, with no more than one prior HDB loan and no private property owned in the last 30 months.
Rules reference: MAS on TDSR, HDB on housing loans, IRAS on buyer's stamp duty. Estimates for planning only, not financial advice.
Common questions
Why does the bank test my loan at 4% when actual rates are lower?
Banks must check you can still afford the instalments if rates rise, so they assess bank loans at the higher of your actual rate or 4% a year. HDB concessionary loans skip this test and are assessed at the flat 2.6% rate, which is why the same salary qualifies for a bigger HDB loan than bank loan.
What is the difference between TDSR and MSR?
TDSR caps all your monthly debt payments, home loan included, at 55% of gross monthly income, and applies to bank loans. MSR caps just the home loan instalment at 30% of income, and applies when you buy an HDB flat. This calculator works out both caps and uses whichever is tighter.
How much cash do I need upfront?
The downpayment is 25% of the price. On a bank loan at least 5% of the price must be paid in cash; the rest of the downpayment and the buyer's stamp duty can come from CPF savings. HDB concessionary loans have no minimum cash requirement.
Do my other debts really shrink my home loan?
Yes. Under TDSR every dollar of car, student, renovation or credit card payments eats one dollar of your 55% allowance. A S$2,000 a month car loan on a S$9,000 salary cuts about S$419,000 off the home price you qualify for.
Does applying with my spouse change the numbers?
Yes. A joint application combines both incomes for the TDSR and MSR caps, which raises how much you can borrow. Both applicants' existing monthly debts count against the caps too.
Is there an income ceiling for the HDB loan?
Yes. HDB concessionary loans cap gross monthly household income at S$16,000, or S$8,000 for single buyers (raised in August 2026). At least one applicant must also be a Singapore Citizen. If you are over the ceiling or have no citizen applicant, a bank loan is the route. This calculator caps the income slider at the ceiling while the HDB loan is selected.