Abstract: Significant harm to the economy of modern states is caused by the legalization of proceeds from crime. The experience of foreign countries allows us to make recommendations for improving the system of counteraction to these criminal acts in our country. The paper considers the process of developing legislation to combat the legalization of proceeds from crime in the United States and Great Britain. Particular attention is paid to current data submitted by state authorities, for example, the United States Sentencing Commission, which allow us to make timely and valid conclusions about the effectiveness of combating crime in this area. The paper presents an analysis of the activities of the National Financial Intelligence Unit of the United States - the Financial Crimes Enforcement Network and the practice of applying the federal law "Foreign Account Tax Compliance Act". In the course of the study, the authors analyzed the activities of the British government - HM Treasury, National Crime Agency, the legal basis for combating legalization based on the Proceeds of Crime Act, and Money Laundering Regulations. Based on the data obtained, the authors draw attention to the fact that law enforcement agencies of Great Britain operate at national, regional and local levels, which increases the effectiveness of the fight against legalization. Particular attention was paid to the Joint Money Laundering Taskforce / JMLIT created in 2015 and already well-proven. During the research, the authors used historical, logical, statistical, systemic and prognostic research methods. The main conclusion of the study was a reasoned opinion on the possibility of wider use of the experience of the United States and Great Britain in countering the legalization of proceeds from crime. At the same time, the authors draw attention to the need to take into account the specifics of the development of the Russian Federation and to refrain from blind implementation of the norms of law.