PurposeMacau is a major gambling city in Asia, with many tourists and customers visiting its casinos every day. These visitors include not only recreational and pathological gamblers, but also professional people such as accountants. Although, past studies have been carried out on the gambling behavior of various individuals, no research has examined the actual gambling outcome of accountants. The rationale for this research is that accountants may be more confident in their ability to predict or calculate gambling outcomes than other individuals because of their numerical competency. This paper aims to address these issues.Design/methodology/approachThis study is ought to be the first to use data on professional accountants to examine the actual gambling outcomes for accountants against the background of human capital theory. The data are taken from an on‐site survey of 203 professional accounting professionals visiting a casino in Macau.FindingsThe results of the logistic regressions indicate that the variables of “age” and “previous win” have no significant influence on the actual gaming outcome for accountants, but that certified public accountants (CPA) status, self‐confidence, temper, and luck may positively affect the outcome. Further, female accounting professionals are less likely to win than male accounting professionals. The results support the validity of human capital theory, which asserts that the market compensates the cost of education. Although table games are based on casino mathematics, probability, and luck, it is interesting to note that human capital theory also applies in the gaming industries.Originality/valueThe results extend the theoretical development of human capital theory and broaden its application from business sectors to the gaming industry. Further research is recommended to validate the findings.