This study examined the factors influencing preferences for financial resources for post-disaster mental health services, such as out-of-pocket payment and tax burden. The data were collected from 2,928 individuals in South Korea who were classified into three groups according to their preference for financial resources: out-of-pocket payment, tax-based financing, or no preference. A logistic regression was performed to assess the predictive power of each variable in each group. The significant psychosocial factors influencing preference for out-of-pocket payment, compared to the no-preference group, included the perception of the time to recover from post-disaster mental health problems, the perception of importance of national support, and public stigma of seeking mental health services. On the other hands, external attribution for mental illness, the perception of the time to recover from post-disaster mental health problems, the perception of importance of national support, and self and public stigma of seeking mental health services significantly predicted the group who preferred tax-based financing.