Entity Setup
Pillar Two Global Minimum Tax: What Multinationals in Australia Need to Do Now
Australia has enacted the OECD’s Pillar Two rules, creating new global and domestic minimum tax obligations for multinational groups—this article breaks down compliance steps, timelines and transitional relief.
By NomadicTax Research Team • 5-8 min read • November 23, 2025
## What is Pillar Two (Global & Domestic Minimum Tax)?
Pillar Two is part of the OECD/G20’s tax reform to ensure large multinational enterprise (MNE) groups pay at least a **15% effective tax rate** in each jurisdiction they operate. Australia has implemented:
- The **Income Inclusion Rule (IIR)** and **Domestic Minimum Tax** for fiscal years starting on or after **1 January 2024**. ([ato.gov.au](https://www.ato.gov.au/businesses-and-organisations/international-tax-for-business/in-detail/multinationals/global-and-domestic-minimum-tax?utm_source=openai))
- The **Undertaxed Profits Rule (UTPR)** effective from fiscal years starting on or after **1 January 2025**. ([ato.gov.au](https://www.ato.gov.au/businesses-and-organisations/international-tax-for-business/in-detail/multinationals/global-and-domestic-minimum-tax?utm_source=openai))
## Current Guidance & Consultation Status
Consultations were opened for:
- **Practical Compliance Guideline PCG 2025/D3**, covering lodgment obligations and transitional enforcement approach. ([ato.gov.au](https://www.ato.gov.au/businesses-and-organisations/business-bulletins-newsroom/consultation-open-for-guidance-about-pillar-two?utm_source=openai))
- **Taxation Ruling TR 2006/11DC**, relating to private rulings and the Commissioner’s discretion in Pillar Two contexts. ([softwaredevelopers.ato.gov.au](https://softwaredevelopers.ato.gov.au/Pillar2_20250723?utm_source=openai))
Public feedback on these drafts closed in late August 2025. These materials signal what the ATO expects from entities in scope. ([softwaredevelopers.ato.gov.au](https://softwaredevelopers.ato.gov.au/Pillar2_20250723?utm_source=openai))
## Practical Steps for MNEs & Advisers
- Assess whether your group meets the **global revenue threshold** of EUR 750 million. If so, confirm domestic operations’ effective tax rates. ([ato.gov.au](https://www.ato.gov.au/businesses-and-organisations/international-tax-for-business/in-detail/multinationals/global-and-domestic-minimum-tax?utm_source=openai))
- Review **entity structure** to determine which units are constituent entities or joint ventures, especially if financial accounting or separate reporting is ambiguous. ([ato.gov.au](https://www.ato.gov.au/about-ato/consultation/in-detail/special-purpose-working-groups-key-messages/pillar-two-global-and-domestic-minimum-tax-working-group/pillar-two-global-and-domestic-minimum-tax-6-march-2025imum-tax-wgkm-6-march-2025?utm_source=openai))
- Prepare for new **lodgment obligations**, including IIR/UTPR returns or domestic minimum tax returns, using approved forms (new Australian IIR/UTPR and DMTR forms). ([softwaredevelopers.ato.gov.au](https://softwaredevelopers.ato.gov.au/Pillar2_20250723?utm_source=openai))
- Keep records of all foreign income, deductions, and low-taxed jurisdictions to support disclosure and top-up tax liability computations.
## Transitional Relief & Penalties
The ATO is using a **soft-landing approach** during certain transitional years (especially fiscal years that begin on or before 31 December 2026, but whose ends are not after 30 June 2028). This means some lenience on failure to lodge or statement penalties, provided taxpayers take reasonable steps toward compliance. ([ato.gov.au](https://www.ato.gov.au/businesses-and-organisations/business-bulletins-newsroom/consultation-open-for-guidance-about-pillar-two?utm_source=openai))
## Sample Scenario
- A multinational headquartered in Australia has foreign affiliates taxed at 10% abroad and in Australia, it’s taxed at 30%. Under IIR, the group must compute **top-up tax** to bring the foreign income up to 15%.
- If the group fails to lodge the required GIR or domestic minimum tax return during the transition period, but demonstrates honest attempts and reasonable compliance actions, penalties may be mitigated under the soft-landing regime.
## Strategic Advice
- Engage your tax, finance, and reporting teams now to determine compliance readiness.
- Use the draft guidelines (PCG 2025/D3, TR 2006/11DC) to simulate reporting, and build internal processes calibrated to their expectations.
- Monitor release of definitive rulings and final guidance—these live documents will solidify expectations.
- Also consider cross-jurisdictional tax exposure: where foreign rates are significantly below 15%, you may face meaningful additional tax burdens.
**Conclusion**: Pillar Two is no longer a distant proposal for many MNEs—it’s now law in Australia. Understanding reporting triggers, structuring appropriately, and navigating transitional relief are essential to ensure you meet your obligations without unexpected penalties.