Forensic accounting and investigative auditing is a discipline that is used when investigating a complicated cheating case related to the law. Inside are investigative audit techniques that can assist forensic accountants in their implementation. In Indonesia, investigative audit is more often associated with the settlement of corruption cases, one of which is money laundering. So in this study the authors wanted to know how investigative audit techniques are most effective in its efforts to uncover cases of money laundering based on the perspective of forensic accountants.The research method used is qualitative descriptive method. Determination of respondents using key person techniques are people who work as forensic accountants. The data used is the primary data obtained from interviews with respondents. This study uses the technique of triangulation of sources in the test data. Based on the results of his analysis, the results of the investigative aduit stages are predication, hypothesis formulation, data gathering, data reliability test, data analysis, interview and interrogation call, loss calculation, and reporting. It was also concluded that in theory and practice there is no investigative audit technique selected as the most effective technique. Because previously forensic accountants need to consider the things and characteristics of the money laundering case, only then determine which investigative audit techniques to use.