Compliance
Compliance Spotlight: Global Anti-Base Erosion (GloBE) Rules and Australia’s Corporate Reporting
With global minimum tax rules (GloBE) becoming active, big Australian companies face new reporting, transparency and compliance burdens. Here’s what they need to know and do.
By NomadicTax Research Team • 5-8 min read • March 29, 2026
## What Are the GloBE Rules?
GloBE (Global Anti-Base Erosion) rules are part of the OECD’s Pillar Two framework, designed to ensure large multinationals pay a minimum tax where they operate, regardless of where profits are shifted. Australia has legislated these rules in the **Treasury Laws Amendment (Making Multinationals Pay Their Fair Share – Integrity and Transparency) Act 2024**. ([au.andersen.com](https://au.andersen.com/wp-content/uploads/2026/03/AA_AU_AUSTRALIA_TAX_UPDATE_MARCH_2026.pdf?utm_source=openai))
Under these rules, **multinational enterprises (MNEs)** with a global turnover above a certain threshold must lodge **GloBE Information Returns** and meet certain effective tax rate minimums. Australia requires the first lodgements by **30 June 2026**. ([ato.gov.au](https://www.ato.gov.au/media-centre/key-developments-in-tax-administration-in-australia?utm_source=openai))
## Key Compliance Requirements for Affected Entities
- Maintain robust financial records that distinguish between foreign subsidiaries, intangible income, interest expenses.
- Track and calculate the **effective tax rate** in each jurisdiction in which you, or your group, operate.
- Pay attention to **thin capitalisation**, **interest deduction limitation**, and **controlled foreign company** rules—these interact heavily with GloBE. Guidance on thin capitalisation is in development. ([ato.gov.au](https://www.ato.gov.au/about-ato/ato-advice-and-guidance/advice-under-development-program/advice-under-development-international-issues?utm_source=openai))
## Transitional Relief & Penalties
During the transition period, the **ATO intends to apply relaxed penalty treatment** if a multinationals has taken **reasonable steps** to comply, even if miscalculations occur. ([ato.gov.au](https://www.ato.gov.au/media-centre/key-developments-in-tax-administration-in-australia?utm_source=openai))
## Example: Australian-headquartered Firm with Global Presence
Suppose “NostraCo” operates in Australia, NZ, Singapore, and UK. Its combined global revenues > €750 million. GloBE rules apply.
- It must prepare a consolidated global tax profile.
- Calculate its global minimum tax (typically around 15%) and compare with local rates.
- If effective rate in some jurisdiction is lower, pay top-up tax in Australia to reach minimum.
- File the information return by 30 June 2026.
## Actionable Steps for Corporates Now
1. **Audit your international structure**: where are your profits sourced? What income shifting or related party debt exists?
2. **Compute tentative effective rates** per jurisdiction using 'pre-GloBE' financials.
3. **Engage external tax advisers** familiar with OECD / Pillar Two to review calculations.
4. **Develop documentation & record-keeping policies** to support safe harbors and penalty relief.
5. **Monitor ATO guidance** on thin capitalisation rules and other related instruments (expected later in 2025) ([ato.gov.au](https://www.ato.gov.au/about-ato/ato-advice-and-guidance/advice-under-development-program/advice-under-development-international-issues?utm_source=openai)).
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*Author: NomadicTax Research Team*