Smuggling of goods is a complex and multifaceted phenomenon that has a significant impact on the economic and social situation in the country. The illegal movement of goods across the border not only undermines economic stability, but also poses a threat to national security, contributing to the development of the shadow economy and corruption. In the conditions of globalization and the growing integration of international markets, the issue of combating smuggling becomes especially urgent, because this phenomenon is becoming more and more large-scale and difficult for state control. Criminalization of the smuggling of goods is a key mechanism for countering this negative phenomenon, which involves the establishment of stricter liability for violations of customs rules. It should be noted that the effectiveness of the criminalization of customs offenses depends on a number of factors, including the presence of effective legislation capable of adequately responding to new challenges, the effectiveness of law enforcement agencies, as well as the level of international cooperation in this area, etc. However, given the specifics of the Ukrainian economy and the country’s geopolitical location, the smuggling of goods remains a serious problem that requires a deeper analysis and an effective solution. One of the key aspects of the fight against the smuggling of goods, which became one of the main reasons for its criminalization, is its impact on filling the state budget. Illegal trade in goods deprives the state of significant financial revenues that could be directed to the development of social programs, infrastructure projects and ensuring economic growth. The loss of these resources weakens the country’s economic potential, undermines trust in state institutions, and contributes to growing social tensions. The article examines the impact of smuggling on the state’s economy, emphasizing the negative consequences for filling the state budget. Examples of significant economic losses incurred by the state due to smuggling are considered, as well as the role of customs authorities in combating this phenomenon is highlighted. A set of measures is proposed to reduce the level of smuggling, including changes to legislation, increasing the effectiveness of customs control and strengthening international cooperation.