The Australian Taxation Office published a recap of its June Pillar Two information session detailing lodgment requirements for the combined global and domestic minimum tax return as first December 2024 balancer filings became due on 30 June with an automatic 30-day domestic lodgment extension.

The Australian Taxation Office (ATO) has published a recap of its June Pillar Two information session on 14 July 2026.

In June, the ATO held its fourth Pillar Two pre-lodgment information session, attended by more than 300 participants from Australia and overseas. The session supported multinational enterprise (MNE) groups and their advisers to prepare for Pillar Two lodgment essentials and obligations.

What was covered

The session focused on lodgment requirements and included updates on:

  • Australia’s Pillar Two implementation progress and milestones
  • key lodgment issues, such as whether MNE groups need to create a global and domestic minimum tax account and role before lodging
  • lodging the GloBE Information Return (GIR)
  • joint ventures.

The ATO saw strong engagement during the session. Most questions were answered by information available on the ATO website. The content will be reviewed and updated over the coming months.

The sections below summarise the key topics and link to relevant resources.

Registrations for Pillar Two

MNE groups don’t need to register for Pillar Two before their first lodgment. However, some entities may need to create a Global Domestic Minimum Tax (GDMT) account and role before lodging to nominate a tax agent.

If a tax agent already has client-level access for income tax returns, a GDMT account and role are not required, and the agent can lodge the Combined Global and Domestic Minimum Tax Return (CGDMTR).

Requests to create GDMT accounts and roles are being processed, and agents don’t need to follow up on nominations.

Lodging the CGDMTR

The CGDMTR combines the foreign lodgment notification, Australian IIR/UTPR tax return (AIUTR) and Australian Domestic Minimum Tax return (DMTR) into one form available through ATO online services.

All in-scope taxpayers will receive an automatic 30-day lodgment deferral for the 2024 fiscal year (AIUTR and DMTR only). Payment deferrals must be requested separately.

The API channel is open for onboarding. Digital Service Providers should be contacted to confirm they have completed all onboarding with the ATO.

Lodging the GIR

The ATO outlined the GloBE Information Return (GIR) XML file requirements and how to complete certain elements of the GIR, including:

  • when to lodge
  • due dates
  • the GIR XML schema and validation rules.

The automatic 30-day domestic lodgment deferral doesn’t apply to the GIR. However, the ATO may consider a suspension of lodgment enforcement during the transition period. This must be requested separately.

Joint arrangements

The ATO provided an update about GloBE joint arrangements and how the rules apply, including examples of whether arrangements may be subject to potential top-up tax or reporting obligations.

Common questions were also addressed, and attendees were invited to send complex enquiries to the ATO mailbox. Further web guidance on joint arrangements is being developed.

Reminders and what’s next

Pillar Two first lodgments for December 2024 balancers were due by 30 June; however, an automatic 30-day deferral for domestic lodgments is in place.

MNEs that are January 2025 balancers should note that Pillar Two first lodgments are due by 31 July 2026.

A recording of the information session is available for those who were unable to attend.