Pillar Two Global Minimum Tax: What Multinationals Need to Know in 2026

The OECD’s Pillar Two global minimum tax framework, formally known as the Global Anti-Base Erosion (GloBE) rules, is no longer a policy proposal on the horizon. For multinationals with consolidated revenue of EUR 750 million or more, 2026 marks the first full fiscal year in which all three charging mechanisms operate simultaneously: the Qualified Domestic Minimum Top-up Tax (QDMTT), the Income Inclusion Rule (IIR), and the Undertaxed Profits Rule (UTPR). France, having transposed the EU Minimum Tax Directive, sits at the centre of this compliance landscape, and in-house tax directors and external counsel advising groups with French operations face an immediate need for clarity.

This guide delivers a practical, France-focused roadmap: who is in scope, how jurisdictional effective tax rates are calculated, where top-up liability arises, and precisely what must be done during the first compliance cycle.

Last updated: June 2026. This article is for informational purposes only and does not constitute tax or legal advice. Readers should consult qualified international tax counsel before acting on any information provided.

Pillar Two at a Glance, Scope, Aims and High-Level Mechanics

Pillar Two establishes a 15 % minimum effective tax rate for large multinational enterprise (MNE) groups. The objective is straightforward: ensure that profits booked in every jurisdiction where an in-scope group operates are taxed at no less than this floor rate. Where the jurisdictional effective tax rate (ETR) falls below 15 %, one or more charging mechanisms impose a “top-up tax” to bridge the gap. The rules were developed under the OECD/G20 Inclusive Framework and published as the GloBE Model Rules. The EU transposed these rules through its Minimum Tax Directive, requiring all Member States, including France, to implement domestic legislation.

Who Is in Scope, the EUR 750 Million Consolidated Revenue Test

A multinational group falls within the scope of Pillar Two if it has annual consolidated revenue of at least EUR 750 million in at least two of the four fiscal years immediately preceding the tested year, based on the consolidated financial statements of the ultimate parent entity (UPE). This threshold mirrors the Country-by-Country Reporting (CbCR) threshold already familiar to most large groups, as set out in the OECD GloBE Model Rules. Government entities, international organisations, non-profit entities and certain pension funds are excluded. Groups that are purely domestic, with no constituent entities outside a single jurisdiction, are also outside the rules’ reach, although a domestic QDMTT may still apply to them if enacted locally.

The Three Charging Mechanisms, QDMTT, IIR and UTPR

The GloBE rules operate through a defined priority order:

• QDMTT (Qualified Domestic Minimum Top-up Tax). A jurisdiction may enact its own domestic top-up tax, collecting the difference between the local ETR and 15 % before any foreign charging rule applies. France’s domestic implementing legislation follows this approach, consistent with the EU Directive.
• IIR (Income Inclusion Rule). If the low-taxed jurisdiction has not enacted a QDMTT, or the QDMTT does not fully cover the shortfall, the UPE (or, in some cases, an intermediate parent entity) includes the remaining top-up tax in its own tax liability. The IIR operates on a top-down basis through the ownership chain.
• UTPR (Undertaxed Profits Rule). The UTPR is the backstop. Where neither a QDMTT nor an IIR collects the required top-up, the remaining amount is allocated among jurisdictions where the group has substance, typically based on employee headcount and tangible asset values. The UTPR became effective for fiscal years beginning on or after 31 December 2024 in most implementing jurisdictions.

This layered structure is designed to eliminate double top-up taxation while ensuring that the 15 % floor is enforced regardless of whether a low-tax jurisdiction cooperates.

How Jurisdictional ETR Is Computed Under the Pillar Two Global Minimum Tax

The jurisdictional ETR calculation sits at the heart of the GloBE rules. Rather than testing each entity’s tax rate individually, Pillar Two aggregates all constituent entities in a given jurisdiction and computes a single blended ETR for that jurisdiction. If the result falls below 15 %, a top-up tax is triggered. The methodology is detailed in the OECD Minimum Tax Implementation Handbook and requires careful attention to both numerator (covered taxes) and denominator (GloBE income).

The formula is expressed as:

Jurisdictional ETR = Adjusted Covered Taxes ÷ GloBE Income (or Loss)

GloBE income begins with the group’s financial accounting net income (or loss) for each constituent entity, determined under the accounting standard used in the UPE’s consolidated financial statements (typically IFRS or local GAAP meeting qualifying criteria). This figure is then subject to a series of prescribed adjustments, for example, excluded dividends and equity gains, excluded international shipping income, and adjustments for stock-based compensation, to arrive at an adjusted profit figure that represents the GloBE tax base.

Adjusted covered taxes include current tax expense accrued in the financial accounts, plus specific adjustments for deferred tax items that meet recognition criteria under the rules, net of any amounts relating to uncertain tax positions and non-qualifying refundable tax credits. Importantly, covered taxes do not include taxes imposed under the QDMTT or IIR themselves.

Key Inputs and Common Pitfalls

Groups performing their first jurisdictional ETR calculation frequently encounter challenges in three areas: timing differences between financial accounting and tax reporting, the treatment of deferred tax assets and liabilities, and the substance-based income exclusion (SBIE). The SBIE allows groups to exclude a portion of GloBE income attributable to tangible assets and payroll costs in each jurisdiction, reducing the denominator and therefore the top-up tax exposure for entities with genuine local substance.

Industry observers expect that in practice, most first-year ETR computations will require multiple iterations as finance and tax teams align data across jurisdictions. Running preliminary jurisdictional ETR tests early, even on estimated figures, is strongly recommended to identify exposure points before filing deadlines.

Where Top-Up Tax Liability Arises, QDMTT vs IIR vs UTPR for Multinationals

Understanding the priority order in which top-up tax is collected is critical to modelling cash tax impacts and determining which entity within the group bears the cost. The GloBE Model Rules establish a clear hierarchy:

1. QDMTT takes priority. If the low-taxed jurisdiction has enacted a qualifying QDMTT, the top-up tax is collected domestically. The QDMTT effectively “switches off” the IIR and UTPR to the extent it covers the full top-up amount. France’s implementation of the EU Minimum Tax Directive includes QDMTT provisions, meaning French-source income that falls below the 15 % floor will in principle be topped up within France itself.
2. IIR applies next. Where no QDMTT exists, or where the local QDMTT does not qualify under GloBE standards, the UPE (or the nearest intermediate parent in the ownership chain that has implemented the IIR) includes the top-up in its own tax return. For a French-headquartered group with a subsidiary in a non-QDMTT jurisdiction, the French parent would collect the IIR top-up.
3. UTPR is the backstop. If neither QDMTT nor IIR applies (for example, because the UPE is located in a jurisdiction that has not adopted Pillar Two), the top-up is reallocated to other jurisdictions under the UTPR, based on the group’s substance (employees and tangible assets) in those jurisdictions.

Practical Allocation Examples

Example A, IP in a low-tax jurisdiction. A French-parented MNE holds valuable technology IP through a subsidiary in Jurisdiction X, which levies a 5 % corporate tax rate on royalty income. The subsidiary earns EUR 100 million in GloBE income, pays EUR 5 million in covered taxes, yielding a jurisdictional ETR of 5 %. After applying the SBIE (assume EUR 2 million of payroll and tangible-asset carve-outs), the top-up percentage is 15 % minus 5 % = 10 %, applied to the excess profit of EUR 98 million, generating a top-up tax of approximately EUR 9.8 million. If Jurisdiction X has not enacted a QDMTT, this top-up is collected by the French parent under the IIR.

Example B, Finance SPV in a Channel jurisdiction. A group maintains a treasury vehicle in a jurisdiction with a 0 % rate on interest income. The vehicle earns EUR 50 million of GloBE income. With minimal local substance (low payroll, few tangible assets), the SBIE offset is negligible. The full 15 % top-up applies, generating approximately EUR 7.5 million. If neither QDMTT nor IIR applies (because the UPE is in a non-implementing state), the UTPR allocates this amount to other group jurisdictions, including France, proportionately by employee headcount and tangible asset values.

These illustrative examples demonstrate why identifying low-ETR jurisdictions early, and confirming whether each has enacted a qualifying QDMTT, is a foundational step in the compliance process.

First Compliance Cycle, Entity Mapping, GloBE Information Returns and Timelines

The 2026 fiscal year represents the first full compliance cycle in which all three Pillar Two charging mechanisms are active simultaneously. For groups with calendar-year fiscal years, the GloBE information return filing deadline will generally fall 15 months after the end of the fiscal year to which it relates, with an 18-month extension available for the first transitional year, according to the OECD Implementation Handbook. The EU’s updated FAQ, published on 29 May 2026, confirms that Member States may align local filing deadlines with CbCR obligations to reduce administrative burden, an approach France has adopted.

The GloBE information return requires extensive data collection at both entity and jurisdictional level. Groups should begin by building a comprehensive constituent-entity map:

• Identify every constituent entity in every jurisdiction, including permanent establishments, flow-through entities and joint ventures above the ownership threshold.
• Confirm the UPE and any intermediate parent entities that may bear IIR obligations.
• Classify entities by type (operating, holding, IP, treasury, dormant) to anticipate ETR pressure points.
• Document excluded entities (government entities, international organisations, non-profits, pension funds) with supporting evidence.

Data Sources and Internal Owners

Assembling jurisdictional ETR data requires inputs from multiple functions:

• Group finance / consolidation team: Financial accounting net income per entity, elimination of intra-group transactions, deferred tax balances.
• Tax department: Current tax expense, CFC inclusions, withholding taxes, uncertain tax positions, local QDMTT computations.
• Payroll / HR: Eligible employee costs per jurisdiction (for SBIE payroll carve-out).
• Fixed assets / accounting: Net book value of tangible assets per jurisdiction (for SBIE tangible asset carve-out).

Early identification of data owners and establishment of a centralised data-collection template, aligned with the OECD’s prescribed GloBE information return format, are essential to meeting filing deadlines without last-minute data gaps.

Safe Harbours and Documentation Tests

The GloBE rules include transitional safe harbours designed to reduce the compliance burden for jurisdictions where the top-up tax risk is low. Under the Transitional CbCR Safe Harbour, a jurisdiction may be deemed compliant, and no top-up computation is required, if simplified ETR calculations based on existing CbCR data show a rate at or above 15 %, or if the jurisdiction meets a de minimis revenue and income test, or if the effective rate exceeds a defined threshold. The OECD Implementation Handbook details the mechanics and qualification criteria for each test. Groups should document safe-harbour positions jurisdiction by jurisdiction and retain supporting calculations for audit purposes.

Restructuring and Mitigation Considerations, IP and Financial Services Groups

Certain sectors face disproportionate exposure under the Pillar Two global minimum tax framework because of structural features that historically produced low jurisdictional ETRs. Two sectors stand out: IP-intensive groups and financial services.

IP Holding Structures, Checklist Before Restructuring

Groups that centralised intellectual property in low-tax jurisdictions, often through licensing arrangements supported by transfer-pricing documentation, now face a direct tension: the IP entity may generate substantial GloBE income but incur minimal covered taxes, pushing the local ETR well below 15 %. The resulting top-up tax can fundamentally alter the economics of the structure.

Before restructuring, groups should consider the following:

• Run a jurisdictional ETR stress test on the IP entity under both current arrangements and potential alternatives (re-domiciliation, cost-sharing adjustments, or licensing repricing).
• Review transfer pricing documentation to confirm arm’s-length pricing is defensible and aligned with GloBE income calculations.
• Assess SBIE eligibility: does the IP entity employ enough people and hold sufficient tangible assets to benefit meaningfully from the substance-based carve-outs?
• Model exit costs: any restructuring will involve exit charges, potential clawbacks of prior incentives, and one-off withholding tax or capital gains tax liabilities. These must be weighed against the ongoing top-up savings.
• Consider French anti-abuse rules: France’s transfer pricing regime (Article 57 of the French Tax Code) and its general anti-avoidance rule interact with Pillar Two. Any restructuring that shifts functions, assets or risks towards France may trigger French tax authority scrutiny.

Financial Services and Banking Groups, Specific ETR Drivers

Financial institutions face unique ETR challenges under Pillar Two. Credit-loss provisions, a major expense item in banking, are treated differently under GloBE accounting adjustments than under local tax law, which can create significant timing mismatches. Regulatory levies and bank taxes, depending on their classification, may or may not constitute “covered taxes” for GloBE purposes. Additionally, financial services groups often hold large portfolios of equity investments generating excluded dividends, which reduces GloBE income without a corresponding reduction in covered taxes, potentially inflating the ETR rather than depressing it. However, the interplay varies by jurisdiction and product mix, making entity-by-entity analysis essential.

Industry observers expect the financial services sector to require the most bespoke modelling in the first compliance cycle, given the volume of deferred tax positions, regulatory-capital-driven structures and multi-jurisdictional booking models that characterise large banking groups.

Note: The restructuring and mitigation considerations outlined above are illustrative. Any structural changes should be assessed with qualified international tax counsel familiar with both Pillar Two and local (including French) tax law.

Pillar Two, Practical Compliance Checklist for MNEs

The following ten-point checklist provides a structured starting framework for groups entering their first full Pillar Two compliance cycle:

1. Confirm the EUR 750 million threshold, verify consolidated revenue against the four-year lookback test.
2. Identify the UPE and any intermediate parent entities that may have IIR filing obligations.
3. Map all constituent entities by jurisdiction, include PEs, JVs and flow-through structures.
4. Gather financial and tax data by jurisdiction, coordinate with finance, tax, HR and fixed-asset teams.
5. Run preliminary jurisdictional ETR calculations, identify jurisdictions likely below 15 %.
6. Check QDMTT status for each low-ETR jurisdiction, confirm whether a qualifying domestic top-up applies.
7. Prepare the GloBE information return, use the OECD-prescribed format and populate with verified data.
8. Determine potential top-up tax exposures, model IIR and UTPR allocations for non-QDMTT jurisdictions.
9. Document safe-harbour positions and elections, retain supporting calculations for each qualifying jurisdiction.
10. Plan stakeholder communication, brief the CFO, audit committee, board and external auditors on exposure, methodology and filing timelines.

Groups operating in France should additionally confirm the local QDMTT computation methodology with their French tax advisers and ensure alignment with the DGFiP’s administrative guidance where available.

Reporting Obligations by Entity Type, Comparison Table

The following table summarises the typical reporting and payment obligations under Pillar Two, segmented by entity type within a multinational group:

Conclusion, Immediate Next Steps for Multinationals Operating in France

The Pillar Two global minimum tax is no longer theoretical. Multinationals with French operations, whether as UPEs or as subsidiaries of foreign-headquartered groups, should treat 2026 as the year to embed GloBE compliance into their tax governance framework. The most urgent actions are: completing constituent-entity mapping, running preliminary jurisdictional ETR calculations, confirming QDMTT coverage in each material jurisdiction, and establishing the data-collection processes needed for the GloBE information return. Groups with IP-heavy or financial-services structures should prioritise ETR stress testing and take specialist counsel advice before making any restructuring decisions.

Early preparation will not only reduce the risk of compliance failures but also give finance teams the visibility needed to manage cash tax impacts and communicate exposure to boards and audit committees effectively.

Sources

1. OECD, Global Anti‑Base Erosion Model Rules (Pillar Two)
2. OECD, Minimum Tax Implementation Handbook (Pillar Two)
3. EU Taxation & Customs, Pillar 2 Directive
4. EU Taxation & Customs, Pillar 2 FAQ (May 29, 2026 update)
5. KPMG, Pillar 2 Explainer
6. PwC, Pillar 2 Client Guidance
7. Deloitte, Pillar Two Perspectives
8. oecdpillars.com, Pillar Two Tracker
9. Moody’s Insights, Understanding Pillar Two