Rule of 78 Early Repayment Calculator

When applying for a personal loan or car loan in Hong Kong, many loan contracts state that if the borrower repays early, the lender will calculate the refundable interest using the \"Rule of 78\". The Rule of 78 is an interest allocation method that distributes the total interest over the repayment period in decreasing instalments, so earlier payments contain more interest and later payments contain less. This means that even if you settle the loan early, the interest already paid may not be refunded proportionately, and the bank or finance company may charge a substantial early repayment fee.

For Hong Kong borrowers, understanding the Rule of 78 is important because it directly affects the actual interest savings from early repayment. Advertisements often claim \"no penalty for early repayment\", but under the Rule of 78 the refundable interest can be much lower than expected. This is especially true once the loan has passed the halfway point of its term, because little interest remains to be refunded, making early settlement less worthwhile.

HK FinBox's Rule of 78 early repayment calculator lets you enter the loan amount, annual interest rate, total number of instalments and instalments already paid, then automatically estimates the remaining principal, interest paid, refundable interest and early repayment fee. Using the Rule of 78 allocation method common in Hong Kong, the calculator helps you assess in seconds whether early settlement is really worthwhile.

In practice, confirm with the lender whether your contract uses the Rule of 78 and what early repayment fee applies. Then enter the details into the calculator and compare the total cost difference between continuing with monthly payments and settling in a lump sum. If the difference is small, you may be better off keeping cash as an emergency reserve; if the difference is significant and you have sufficient liquidity, early repayment can help reduce debt.