The purpose of this study was to determine the effect of risk preferences, professional dominance, current information, and professional relationships on tax consultant ethical decision making. This study uses a saturated sampling method with respondents being Tax Consultants Registered at the Indonesian Tax Consultant Association in the Bali Nusa Tenggara Region. Data collection methods used are questionnaires and data analysis using multiple linear regression. The results showed that risk preferences negatively affected the tax consultant's ethical decision making. Professional domination has a negative effect on tax consultant ethical decision making. Present information has a positive effect on tax consultant ethical decision making. Professional relations have a negative effect on tax consultant ethical decision making. Association, so this study has limitations on conclusions based solely on the perception of consultant tax only in Bali and Nusa Tenggara. Future research is expected to expand the research population that is not limited to tax consultants in the Bali Nusa Tenggara region.The determination coefficient value of adjusted R 2 in the study results is 0.725, this indicates that 72.5 percent of ethical decisions are effect by risk preference variables, professional dominance, current information, and professional relationships, while the remaining 27.5 percent are effect by other variables not discussed in the study this. This is an opportunity for further researchers to develop research related to the factors that effect the ethical decision making of tax consultants.