Find out the highest property price your income and deposit support under Hong Kong's mortgage rules — and which of the two is actually holding you back.
How much can you afford?
How to use this calculator
Enter your monthly income before tax
Enter the deposit you have saved
Enter the mortgage rate you expect and the term you want
Read both the ceiling and the reason for it — the reason is what tells you what to change
Why this calculator
Applies the current HKMA limits: a 70% loan-to-value cap and a 50% debt-servicing ratio
Tells you which of the two is binding, so you know whether to save more or earn more
Uses the same repayment maths as our mortgage calculator, so the two agree
Free, instant, and no sign-up
How the ceiling is worked out
Two ceilings, and the answer is the lower one
Your deposit sets one ceiling and your income sets another; what you can buy is whichever is smaller. Because the loan-to-value cap is 70%, a deposit has to cover the whole remaining share on its own, so it supports a price of the deposit divided by that share. Separately the 50% debt-servicing limit caps your monthly repayment, and the annuity formula turns the largest permitted payment back into the largest loan; add the deposit to it and that is the second ceiling. This page reports which of the two bound your answer, because they point at completely different next steps.
Why 'which limit' matters more than the number
If the deposit binds, saving more raises the ceiling and a pay rise does nothing at all. If income binds, a longer term or a lower rate raises it and extra deposit does nothing. A calculator that returns only a price leaves you to guess which of those levers is worth pulling — and the maths already knows.
The stress test is not applied, and that is current
Affordability tools here conventionally re-check the repayment at the quoted rate plus 200 basis points. The HKMA suspended that requirement on 28 February 2024 and it remains suspended, so applying it would understate your borrowing capacity by roughly a fifth against a rule that no longer binds. To see the effect anyway, enter a rate two points higher: the ceiling falls, and that is your own prudence rather than a bank's condition.
What this calculator does not know about you
Existing borrowing — a car loan, a personal loan, another mortgage — counts toward the 50% limit and is not an input here, so a bank's figure will usually come in below this one. Banks also assess income stability, the property's own valuation (which can land below the price you agreed) and its age, and apply their own policy on top of the HKMA floor. The Mortgage Insurance Programme can lift the borrowing share above 70% for eligible buyers, at a premium. Treat the number above as a starting range, and get a pre-approval in principle before you make an offer.
Affordability questions
How much deposit do I need in Hong Kong?
The HKMA caps residential mortgages at 70% of property value, so the baseline deposit is 30%. Since 16 October 2024 that cap is the same for every residential property, regardless of price or whether you will live there. The Mortgage Insurance Programme can raise the borrowing share above 70% for eligible buyers, at a premium.
What is the debt-servicing ratio?
Your total monthly debt repayments as a share of monthly income. The HKMA limit is 50%, so on a HK$60,000 monthly income your repayments across all borrowing may not exceed HK$30,000. Existing loans count toward it, which is why your bank's figure may be lower than this calculator's.
Does the mortgage stress test still apply?
No. The HKMA suspended the requirement to test affordability against a 2-percentage-point rate rise on 28 February 2024, so it is no longer a condition of approval. This calculator does not apply it. If you want to see the effect anyway, enter a rate 2 points higher — a sensible check even without a rule requiring it.
Why is my deposit the limiting factor?
Because the 70% cap means the deposit has to cover the whole remaining 30%. If your income could service a larger loan than your deposit allows, saving more is the only thing that raises the ceiling — earning more will not move it.
Why is my income the limiting factor?
Because the 50% debt-servicing limit caps your monthly repayment, and that payment determines the largest loan the annuity supports. A longer term or a lower rate lowers the payment for the same loan, so both raise the ceiling; extra deposit does not.
Can I rely on this result when making an offer?
Treat it as a starting range, not an approval. Banks assess existing debts, income stability, the property's own valuation and age, and their own policy on top of the HKMA limits. Get a pre-approval in principle before committing to a purchase.
