Loan-to-value ratio
A higher ratio means a smaller down payment, but a larger loan, more interest and possibly mortgage insurance costs. The final ratio is approved by the bank.
Home budget · calculated on your device
Hong Kong home purchase calculator
Down payment and income needed, worked out together
From the down payment and stamp duty to commission, reference income and the monthly repayment, all in one calculation.
More than the down payment
- Total upfront cost
- Down payment + stamp duty + commission + legal fees + other
- Monthly repayment
- With minimum reference income and a rate +1% scenario
- Stamp duty
- Rules from 26 February 2026
The loan-to-value ratio, interest rate and fees remain your assumptions; the bank’s final approval may require a higher income.
Results
Estimated total upfront costHK$2,010,000Down payment + stamp duty + commission + legal fees + other
Down paymentHK$1,800,000
Ad valorem stamp dutyHK$135,000
Monthly repaymentHK$18,860
Minimum reference monthly incomeHK$37,720
Repayment at rate +1%HK$21,281
Loan amountHK$4,200,000
Total interest over the termHK$2,589,556
The reference monthly income assumes repayments take 50% of income and ignores other debts; the bank’s final approval may require a higher income.
Down payment in Hong Kong
The down payment is not all the cash you need to buy
The down payment is the price minus the mortgage loan, but around signing and completion you usually still pay ad valorem stamp duty, agency commission, legal fees and mortgage-related costs. A new or second-hand flat may also bring different management fees, deposits, clearance and renovation budgets.
That is why the tool puts the “total upfront cost” first: it is not the total cost of the property, but the cash you need to set aside at completion, based on your assumptions.
Stamp duty on a home purchase
Ad valorem stamp duty is charged by price band
Price up to $4 million$100
$4.5 million1.5%
$6 million2.25%
$9 million3%
$10.08 million to $20 million3.75%
Over $109,574,4706.5%
The transitional ranges between bands use a marginal formula, so you cannot simply multiply the price by the headline percentage. This tool applies the Scale 2 rates in force from 26 February 2026 and rounds up to a whole dollar; where more than one residential property, a difference between consideration and market value, or an exemption is involved, check with the Inland Revenue Department’s service.
Hong Kong mortgage calculator
How do the loan-to-value ratio, interest rate and term change repayments?
Mortgage interest rate
Even with the same loan, a higher rate pushes up the monthly repayment. The result also shows a scenario with the rate 1 percentage point higher, so you can keep a buffer.
Income needed
The HKMA’s current debt servicing ratio limit is 50%. The tool uses the monthly repayment divided by 50% as a reference; repayments on other mortgages and debts reduce the room available.
Repayment term
A longer term usually lowers the monthly repayment but increases the total interest. When comparing, look at both the monthly repayment and the total interest, not just one of them.
Other purchase costs
What else to set aside beyond the calculator?
- Mortgage insurance premium and bank charges
- Copies of title deeds, land searches and mortgage deed fees
- Rates, Government rent and management fee deposits
- Water, electricity and gas account deposits and moving costs
- Renovation, furniture, repairs or clearance
- Emergency cash and a buffer for higher interest rates
FAQ
Down payment, stamp duty and mortgage FAQ
Can a first-time buyer always get a high loan-to-value mortgage?
No. The loan-to-value ratio depends on the property, the applicant’s finances, the bank’s approval and mortgage insurance conditions. The tool lets you enter your own assumptions; it does not indicate an approval.
Does the total upfront cost include every purchase expense?
No. It includes the down payment, stamp duty, commission, legal fees and other costs shown on screen; mortgage insurance, renovation and costs specific to your purchase must be added separately.
How is the monthly repayment calculated?
The tool uses the equal-instalment (annuity) formula with the loan amount, annual rate and number of months. An actual mortgage may change with HIBOR-based or prime-based terms.
Why is the stamp duty different from other websites?
First check the transaction date, the number of properties, the price or market value and the rates used. Agoodeal uses the Scale 2 rates from 26 February 2026; special cases should follow the Inland Revenue Department’s calculation.
Sources and notes
The calculation is done on your device and your input is not uploaded. Results are for budgeting only and are not mortgage, tax or legal advice; the approved loan-to-value ratio, mortgage rate and premiums are decided by the bank.
- Stamp duty rules
- Scale 2 rates from 26 February 2026Rounded up to a whole dollar by the official method
- Monthly repayment
- Equal-instalment formula
- Reference income
- Based on a 50% debt servicing ratio
- Nature
- Calculated on your device; input not uploaded
- Stamp duty rules checked
- 11 October 2026Inland Revenue Department ad valorem stamp duty rates; the mortgage ratio, interest rate and fees remain your assumptions. Checked against the sources cited on the Chinese edition of this page.
Official rules and sources
- Inland Revenue Department: ad valorem stamp duty rates (opens in a new tab)
- HKMA: loan-to-value and debt servicing ratios (opens in a new tab)
- GovHK: Stamp Duty Computation (Landed Properties) (opens in a new tab)
Information and tool results are for general reference only and are not a recommendation or a basis for an individual decision; verify important matters independently. For limitation of liability, see Data use and disclaimer.
Coverage and limitations
Mortgage insurance premiums, rates, management fees, renovation, first registration and mortgage deed costs are not included. Where more than one residential property, a difference between consideration and market value, or an exemption is involved, check with the Inland Revenue Department’s service.
See worked examples (4 rows)
Agency commission 1%, legal fees HK$15,000, other costs HK$0; mortgage insurance and renovation not included. This is not a mortgage approval or bank quotation, and stamp duty follows the actual instrument and applicable rules.
| Item | Estimate |
|---|---|
| Down payment | HK$1,800,000 |
| Stamp duty | HK$135,000 |
| Total upfront cost | HK$2,010,000 |
| Monthly repayment | HK$18,860 |
Method and calculations
Ad valorem stamp duty uses the Scale 2 rates from 26 February 2026, rounded up to a whole dollar by the official method. Repayments use the equal-instalment formula; the reference income assumes a 50% debt servicing ratio.
Published: Page content updated: