Will Day has had an extensive and varied career in the Australian Taxation Office (ATO), spanning more than 20 years. He is currently the ATO’s Deputy Commissioner of Integrated Compliance.

As Deputy Commissioner he has responsibility for providing holistic solutions to counter deliberate, systemic or complex behavioural issues that pose the biggest threats to the integrity of the tax and superannuation systems. In addition, he leads the ATO’s efforts in protecting the tax and superannuation systems from abuse, including through tax evasion, serious financial crime and aggressive tax planning.

He is Chief of the Serious Financial Crime Taskforce, Chair of the multi-agency Phoenix Taskforce and is the Australian representative of the Joint Chiefs of Global Tax Enforcement (J5) alliance.