Compliance
Compliance Essentials for Australia’s Global Anti-Base Erosion Rules
Multinational entities need to act now — Pillar Two / GloBE rules bring new reporting and tax obligations starting mid-2026.
By NomadicTax Research Team • 5-8 min read • April 7, 2026
## What Are GloBE / Pillar Two Rules?
GloBE (Global Anti-Base Erosion) is part of the OECD Pillar Two framework. Its aim: ensure large multinational enterprises (MNEs) pay a minimum level of tax in every jurisdiction they operate in. Australia has adopted both the **Income Inclusion Rule (IIR)** and **Domestic Minimum Tax (DMT)**. ([ato.gov.au](https://www.ato.gov.au/media-centre/key-developments-in-tax-administration-in-australia?utm_source=openai))
## Who’s Affected & What’s Required
- MNEs with **Australian operations** beyond a certain global revenue threshold (often EUR-based) will be required to **lodge a Global Information Return (GIR)**.
- First lodgments due **30 June 2026** for entities with reporting year ending 31 December. ([ato.gov.au](https://www.ato.gov.au/media-centre/key-developments-in-tax-administration-in-australia?utm_source=openai))
- Penalties may be waived during the **transitional period**, provided reasonable measures have been taken. ([ato.gov.au](https://www.ato.gov.au/media-centre/key-developments-in-tax-administration-in-australia?utm_source=openai))
## Compliance Checklist
| Task | Deadline / Start | Notes |
|---|---|---|
| Identify in-scope entities | Immediately—with external advisers if needed | Review global turnover and structure. |
| Map data — income, tax, assets by jurisdiction | By end of current fiscal year | Systems may need changes to gather required data. |
| Develop internal policy for fair value adjustments and top-up tax allocation | As per legislation drafts | Be ready for elections (annual/5-year) under section 6-70 if eligible. ([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-working-group-key-messages-3-april-2025?utm_source=openai)) |
| File GIR and comply with DMT & IIR | First due 30 June 2026 for some; others later depending on year-end | Penalties may be eased in transition. |
## Risks of Non-Compliance
- Missed disclosure = penalties or unexpected obligations.
- Australian domestic law will ligate these rules; improper allocation (e.g. from TCG or MEC groups) may result in disputes.
- Substantial compliance and systems costs if left too late.
## Action Plan for Multinationals
1. Audit your group structure: identify all constituent entities, particularly those in trust or foreign ownership structures.
2. Build or upgrade data systems to track effective tax rates, income and tax across jurisdictions.
3. Review exposure drafts / PCGs (Practical Compliance Guidelines) from ATO to understand elections, elections, safe harbours.
4. Coordinate with auditors / tax counsel to avoid inconsistent elections.
**Bottom line**: Pillar Two isn’t just another policy debate — for in‐scope MNEs, it changes how you report, calculate taxes and ultimately where global profits get taxed. Be proactive, build systems, and consult now to avoid costly mistakes.