The reverse mortgage is a very useful financial product for senior citizens who own homes but do not have a cash income, while it is a high‐risk product from the lender's perspective. One of benefits of reverse mortgages is that the debt limit is restricted to the scope of the disposition price of the collateralized house, which is considered a put option to borrowers. The present study evaluates the option value of the reverse mortgage in Hong Kong through an empirical analysis using the Black–Scholes option‐pricing model. Moreover, the present study shows specific monetary values through option matching to the consumer situation, contributing to the increased understanding of reverse mortgages from the consumer's point of view.