Mortgage calculator

A 70% mortgage on a $6,000,000 home over 30 years at 3.5% has a monthly repayment of $18,859.88, which needs a monthly income of at least $37,719.76 at the 50% debt servicing ratio. The maximum loan-to-value ratio is 70%.

Enter the details

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The current maximum loan-to-value ratio is 70% for both residential and non-residential properties.

Loan term
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For HIBOR-based (H) and prime-based (P) plans, please enter the actual rate per year. This calculator does not provide bank quotes.

Result

Please complete the details. The result will appear here.

How it is calculated

  1. Loan amount = property price × loan-to-value ratio. Down payment = price − loan amount. Monthly rate r = rate per year ÷ 12 ÷ 100. Number of repayments n = years × 12.
  2. Monthly repayment = loan amount × r × (1 + r)^n ÷ ((1 + r)^n − 1). If the rate is 0, it is the loan amount ÷ n.
  3. Total interest = monthly repayment × n − loan amount. Amounts are shown to the cent.
  4. Minimum monthly income = monthly repayment ÷ 50%. Since 16 October 2024, the HKMA has set the maximum loan-to-value ratio at 70% and the debt servicing ratio limit at 50% for all residential and non-residential properties.
  5. The HKMA suspended the stress test (which assumed a 200-basis-point rise in the mortgage rate) on 28 February 2024. This page does not apply a stress test.
  6. A ratio above 70% requires the HKMC Mortgage Insurance Programme, with a separate premium that this page does not include.
  7. All calculations are done in your browser. The details you enter are not sent to any server.

Worked examples

$6,000,000 home, 70% mortgage, 30 years at 3.5%

Details
HK$6,000,000, 70%, 30 years, 3.5%
Result
Monthly repayment HK$18,859.88; total interest HK$2,589,555.68; income required HK$37,719.76

$5,000,000 home, 60% mortgage, 25 years at 4%

Details
HK$5,000,000, 60%, 25 years, 4%
Result
Monthly repayment HK$15,835.11; total interest HK$1,750,531.56; income required HK$31,670.22

$5,000,000 home, 70% mortgage, 20 years at 3.25%

Details
HK$5,000,000, 70%, 20 years, 3.25%
Result
Monthly repayment HK$19,851.85; total interest HK$1,264,444.40; income required HK$39,703.70

Official sources

Applies to: Properties with a provisional sale and purchase agreement signed on or after 16 October 2024 (current HKMA measures).

  1. Hong Kong Monetary Authority: Countercyclical measures for property mortgage loans (press release, 16 October 2024)
  2. Hong Kong Monetary Authority: Countercyclical measures for property mortgage loans (press release, 28 February 2024)

Last reviewed on 27 October 2026.

The rules on this page have been checked against the official sources listed above. The result is for reference. The rules and assessment of the concerned authority shall prevail.