This guidance aims to promote effective information sharing among private sector entities, especially financial institutions, to enhance anti-money laundering and counter-terrorism financing efforts. It addresses challenges in sharing information within corporate groups and between unrelated financial institutions. It clarifies FATF Standards on sharing suspicious transaction information and provides country examples of collaboration between data protection and privacy authorities and AML/CFT authorities. Additionally, it encourages information sharing within and between financial institutions and supports the implementation of AML/CFT regimes nationally and internationally.