Over the years, efforts have been put in place to address money laundering activities including financial crime and illicit funding controls. These efforts have been recognized to promote financial integrity and effective governance systems. They have been further adjudged by the United Nations' sustainable development (Goal‐16) with a major concern to achieve peaceful, just and inclusive development. Previous studies reveal that money laundering activities have major implications for economic growth. However, little is known about the main implications of anti‐money laundering (AML) regulations on sustainable development. On this note, this study contributes to the ongoing debate by investigating the relationship between AML regulations and sustainable development in 72 developing economies, consisting 29 upper middle income, 33 low middle income and 10 low income countries. Using instrumental variable generalized method of moment (IV‐GMM), panel quantile estimation technique and dynamic panel threshold analysis, the findings are as follows. First, AML regulations promote sustainable development. Second, the panel quantile regression reveals that countries with moderate AML regulations attain higher sustainable development than those with excessive regulations. Further results on regional analysis show that AML regulations are more effective in Latin America, South Asia, Europe & Central Asia and Middle East & North Africa than in Sub‐Saharan Africa and East Asia & Pacific. These results are robust and stable after conducting a number of robustness analyses. The study suggests that effective AML regulations should be moderate and well‐implemented to further improve economic, social and environmental sustainability in developing countries.