Joint Chiefs of Global Tax Enforcement (J5)
On July 2nd, 2018, Australia, Canada, the Netherlands, the United Kingdom, and the United States tax authorities established an alliance known as the “Joint Chiefs of Global Tax Enforcement” (J5). The alliance has been created to help fight international and transnational tax crime and money laundering.

Hans van der Vlist, General Director FIOD relayed, “The unique thing about the J5 is the operational collaboration between five countries on tackling professional enablers that facilitate offshore tax crime, cybercrime and the threat of cryptocurrencies to tax administrations, as well as making best use of internationally available data and technology.”
If you’re curious just how crypto laundering works, check out this detailed explanation by Joshua Fruth from Reuters: