Refinance / Cash-out Calculator
Compare your existing mortgage with a new offer, calculate the rate spread, cash rebate and refinance costs, and assess whether refinancing or cashing out is worthwhile.
Refinance parameters
Net benefit
Total savingsHK$234,918 Total costsHK$5,500
Current monthly repayment
New monthly repayment
Monthly saving
Total savings
Total costs
After cashback deduction
Break-even months
Break-even period
Is it worthwhile?
Monthly repayment falls by HK$979 after refinancing; net gain after costs is HK$229,418, about 6 months to break even.
Rate spread
Current interest rate minus new interest rate
Monthly repayment falls by HK$979 after refinancing; net gain after costs is HK$229,418, about 6 months to break even.
Understanding Refinancing and Cash-Out Refinancing
Refinancing means transferring an existing mortgage to another bank to obtain a better interest rate, cash rebate or cash-out funds. Cash-out refinancing means increasing the mortgage loan amount on an existing property to turn the appreciated value into cash. Both are common financial tools for Hong Kong homeowners and can reduce mortgage costs or unlock property equity for other purposes such as renovation, investment or working capital.
The biggest attraction of refinancing is the cash rebates and low-rate offers banks use to win customers. Some Hong Kong banks currently offer cash rebates equal to a percentage of the loan amount and waive certain fees. However, refinancing involves legal fees, valuation fees and early repayment penalties, so you must calculate carefully whether it is worthwhile. Cash-out refinancing requires sufficient remaining equity in the property and must meet the bank's debt servicing ratio requirements.
HK FinBox's refinancing / cash-out refinancing calculator lets you enter your existing mortgage balance, property valuation, new interest rate, cash rebate, fees and cash-out amount to calculate the change in monthly payments after refinancing, the cash released and the total savings. The calculator helps you fully assess the financial impact of refinancing or cash-out refinancing.
Before refinancing, check the penalty period with your existing bank; refinancing within the penalty period may cost several months' interest. Also, if the cash rebate exceeds a certain percentage of the loan amount, the HKMA may require it to be deducted from the loan amount. Compare terms from several banks and weigh the interest savings against all costs.
References
Rules and links last reviewed: 26 July 2026 · The sources above are for reference only; please refer to the latest official announcements from the relevant organisations.
FAQs
What is refinancing?
What is the difference between cash-out refinancing and refinancing?
What costs are involved in refinancing?
Is the cash rebate received directly?
When is refinancing suitable?
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Client-side only: All data is calculated on your device and is not uploaded to any server. Results are for reference only and do not constitute professional financial or legal advice.