Compliance

Navigating Pillar Two: What EU Multinationals Must Do Before June 2026

With the EU Pillar Two Directive and Top-up Tax Information Return due on 30 June 2026, multinationals need to align on Income Inclusion Rules and prepare data systems for compliance.

By NomadicTax Research Team • 5-8 min read • August 24, 2026

## What is the Pillar Two Directive? The Pillar Two Directive (Council Directive (EU) 2022/2523) establishes a **15% minimum effective tax rate (ETR)** that applies to multinational enterprise (MNE) groups and large domestic groups operating in the EU. ([reforms-investments.ec.europa.eu](https://reforms-investments.ec.europa.eu/technical-support-instrument-0/revenue-administration-and-public-financial-management/improving-capacity-member-states-effectively-implement-pillar-two-directive_en?prefLang=mt&utm_source=openai)) It aims to prevent profit-shifting and ensure a minimum level of taxation across jurisdictions. Key components of Pillar Two include the Income Inclusion Rule (IIR), the Undertaxed Payment Rule (UTPR), and Qualified Domestic Minimum Top-up Tax regimes (QDMTT). ([oecd.org](https://www.oecd.org/en/topics/global-minimum-tax.html?utm_source=openai)) ## Important timelines & recent EU guidance - **30 June 2026**: Deadline for the first filing of Top-up Tax Information Returns (also known as Global Information Returns, or GIR) under DAC9 obligations. ([reforms-investments.ec.europa.eu](https://reforms-investments.ec.europa.eu/technical-support-instrument-0/revenue-administration-and-public-financial-management/improving-capacity-member-states-effectively-implement-pillar-two-directive_en?prefLang=mt&utm_source=openai)) - On **29 May 2026**, the European Commission published an FAQ confirming that **Cyprus’s Income Inclusion Rule** shall be treated as *qualified* under the Pillar Two Directive, even though its domestic law was not yet listed in the OECD Central Record at that time. ([taxation-customs.ec.europa.eu](https://taxation-customs.ec.europa.eu/news/pillar-2-global-minimum-tax-directive-new-faq-available-2026-05-29_en?utm_source=openai)) - The EU has launched a Technical Support Instrument to help a group of 14 Member States, including Germany, France, Belgium, Poland, Sweden and others, build capacity to implement the Directive—especially regarding **IT systems**, **data validation**, **DAC9 alignment**, and **capacity for risk review**. ([reforms-investments.ec.europa.eu](https://reforms-investments.ec.europa.eu/technical-support-instrument-0/revenue-administration-and-public-financial-management/improving-capacity-member-states-effectively-implement-pillar-two-directive_en?prefLang=mt&utm_source=openai)) ## What multinationals must do now ### 1. Map scope & structure - Determine whether your group qualifies: global revenue ≥ **€750 million** in at least two of the past four years. ([reforms-investments.ec.europa.eu](https://reforms-investments.ec.europa.eu/technical-support-instrument-0/revenue-administration-and-public-financial-management/improving-capacity-member-states-effectively-implement-pillar-two-directive_en?prefLang=mt&utm_source=openai)) - Identify all low-taxed constituent entities (where ETR falls below 15%), their jurisdictions, and potential exposure under IIR vs UTPR. ### 2. Review and align domestic rules & third-country qualified status - Ensure your home jurisdiction has a **qualified IIR** or QDMTT adopted in law so that other Member States recognise it. Cyprus represents a case where the status was clarified via EU law. ([taxation-customs.ec.europa.eu](https://taxation-customs.ec.europa.eu/news/pillar-2-global-minimum-tax-directive-new-faq-available-2026-05-29_en?utm_source=openai)) - For entities in non-EU third countries, confirm whether those countries’ income inclusion rules meet the EU’s qualification criteria—affecting how top-up tax obligations are allocated. ### 3. Set up data & filing systems - Be ready to prepare and file the **Top-up Tax Information Return** by **30 June 2026**. Data must interoperate with existing DAC9 systems. ([reforms-investments.ec.europa.eu](https://reforms-investments.ec.europa.eu/technical-support-instrument-0/revenue-administration-and-public-financial-management/improving-capacity-member-states-effectively-implement-pillar-two-directive_en?prefLang=mt&utm_source=openai)) - Ensure your IT system can compute effective tax rates jurisdictionally, maintain correct TINs, and align financial reporting (IFRS or equivalent). ### 4. Strategic planning & risk minimisation - Use safe harbours or reliefs available in the EU’s rules (for example, qualified domestic minimum top-up regimes). Structure intercompany financing, royalties, and investments in jurisdictions in compliance. - Engage in tax planning for R&D investment: recent EU tax simplification proposals include **immediate expensing for R&D-related tangible assets**, which can enhance tax efficiencies. ([taxation-customs.ec.europa.eu](https://taxation-customs.ec.europa.eu/news/european-commission-proposes-landmark-tax-simplification-package-streamline-compliance-and-boost-2026-06-24_en?prefLang=fi&utm_source=openai)) ## Challenges & tips | Challenge | Tip to Address It | |---|---| | Data availability & consistency across jurisdictions | Map local tax regimes early; use external advisors or toolkits (e.g., OECD’s) for alignment. | | Misalignment of reporting deadlines or differing interpretations | Use FAQs and clarifications published by the European Commission (like the Cyprus IIR FAQ) as authoritative guidance. | | Penalties & compliance burden | Track deadlines precisely; maintain documentation to show good-faith effort; use the EU Technical Support Instrument where possible. | ## Example scenario A German-headed MNE group has subsidiaries in Estonia, Cyprus, and Switzerland. The group revenue exceeds €750 million. Estonian and Swiss entities have low effective tax rates (below 15%), triggering IIR in Germany. Cyprus’s IIR is qualified under EU law per the 2026 FAQ, so Germany treats its Cyprus subsidiary under IIR rather than UTPR or facing dual application. The group prepares the first GIR by June 2026, using harmonised data declarations, TINs, and following DAC9 exchange standards. ## Conclusion Pillar Two represents a major shift for EU and global multinationals. With the deadline fast approaching, organisations must ensure their tax structure, domestic rules, and data systems are compliant, especially noting qualified status across jurisdictions and readying for top-up tax returns. Start now to avoid penalties, ensure certainty, and optimise tax outcomes under the new 15% minimum tax rules.