Pillar Two Tracker

Pillar Two: GILTI & Blended CFC Regimes

Article 2.10 of the February 2023 OECD Administrative Guidance provides more information on the treatment of the US Global Intangible Low-Taxed Income (GILTI) regime.

This is to be treated as a blended CFC Regime for GloBE purposes. Under the GloBE Rules CFC taxes are allocated to the foreign CFC (subject to the push down restriction). The GloBE Commentary doesn’t go into detail on the allocation and just provides that the CFC tax should be allocated to each CFC based on the owner’s share of the underlying income.

However, determining the allocation can be tricky when there is a blended CFC regime.

The December 2023 OECD Administrative Guidance provides additional information on the application of the Blended CFC rules, including:

– where an MNE Group calculates multiple GloBE Jurisdictional ETRs for different types of Entities located in the same jurisdiction (eg a separate GloBE ETR for investment entities or JVs),

–  where an MNE Group is not required to calculate an ETR as they claim the Transitional CbCR Safe Harbour or the QDMTT Safe Harbour, or if the De Minimis exclusion applies

– where a Constituent Entity is subject to a Blended CFC Tax Regime on the income of non-GloBE Entities.

A blended CFC regime arises when the tax charge under the CFC regime is based on a blend of income or of multiple CFCs. They therefore don’t blend CFC income on a jurisdictional basis but tend to apply globally to all foreign income.  The lack of jurisdictional blending is one of the reasons why these blended CFC rules such as GILTI won’t qualify as qualified domestic minimum taxes. 
 
As GILTI is treated as a CFC regime, US parent companies that are subject to tax under GILTI on foreign low tax entities will allocate the tax levied under the GILTI regime to the foreign low taxed entities for GloBE purposes. 
 
For fiscal years that begin on or before 31 December 2025 but not ending after 30 June 2027, the Administrative Guidance includes a simplified formula to allocate CFC taxes in blended CFC regimes such as GILTI.
 
The formula allocates CFC tax under a Blended CFC Tax Regime to entities located in jurisdictions in which the GloBE Jurisdictional ETR is below the rate for the Blended CFC Tax Regime. 
 
The effect of this is that entities with lower covered taxes and larger CFC income will be allocated more of the CFC tax, as shown in the example below.
 
The Blended CFC allocation formula is:
 
(Blended CFC Allocation Key/Total of all Blended CFC Allocation Keys) * CFC Tax under the Blended CFC Regime
 
The Blended CFC Allocation Key is:
 
Attributable Income of the Entity * (CFC Rate – GloBE jurisdictional ETR)
 
Attributable Income of the entity is the owner’s proportionate share of the income of the CFC.
 
The GloBE jurisdictional ETR is the GloBE ETR before taking the CFC tax into account. If the GloBE ETR is higher than the CFC rate the allocation key is nil.  Any tax under a QDMTT is taken into account in the GloBE ETR providing the Blended CFC tax regime permits a foreign tax credit for it. 
 
Clarifications in the December 2023 Administrative Guidance
 
Multiple GloBE ETRs
 
The December 2023 Administrative Guidance provides that where an MNE Group calculates multiple GloBE Jurisdictional ETRs for different blending groups of Entities located in the same jurisdiction (eg a separate GloBE ETR for investment entities or JVs), the Blended CFC Allocation Key for an Entity shall be calculated using the GloBE Jurisdictional ETR that is applicable to the blending group to which such Entity belongs.
 
No ETR Calculated 
 
The December 2023 Administrative Guidance provides additional rules where an MNE Group is not required to calculate an ETR as they claim the Transitional CbCR Safe Harbour or the QDMTT Safe Harbour, or if the De Minimis exclusion applies. 
 
If the MNE applies the Simplified ETR Test under the Transitional CbCR Safe Harbour, the Simplified ETR is used instead of the GloBE Jurisdictional ETR when determining the Blended CFC Allocation Key for Entities in that Jurisdiction.
 
If an MNE Group elects the de minimis test or the routine profits test under the Transitional CbCR Safe Harbour, the MNE Group calculates the jurisdiction’s Simplified ETR using the guidance in the Transitional CbCR Safe Harbour document (i.e., dividing the Tested Jurisdiction’s Simplified Covered Taxes by its Profit (Loss) before Income Tax as reported on the MNE Group’s Qualified CbC Report).
 
For a jurisdiction for which the MNE Group has elected the QDMTT Safe Harbour, the GloBE Jurisdictional ETR is calculated based on the taxes and income used to determine the ETR for the jurisdiction under the jurisdiction’s QDMTT, except that any creditable QDMTT payable in the jurisdiction for the Fiscal Year shall be added to the taxes in the numerator of the ETR computation.
 
Non-GloBE Entities and Multiple Jurisdictional ETRs
 
Where a Constituent Entity is subject to a Blended CFC Tax Regime on the income of non-GloBE Entities (i.e. Entities that are not Constituent Entities, Joint Ventures or JV Subsidiaries) in which it has a direct or indirect Ownership Interest, tax imposed under the Blended CFC Tax Regime must be allocated to the non-GloBE Entities to avoid it being included in the adjusted covered tax of in-scope entities. 
 
Each non-GloBE Entity must compute a Blended CFC Allocation Key using the GloBE Jurisdictional ETR for the blending group in the same jurisdiction that has the largest aggregate amount of Attributable Income of Entity and shall include its Blended CFC Allocation Key in the Sum of All Blended CFC Allocation Keys.
 
Example
 
An in-scope MNE group has a parent company located in jurisdiction A that wholly owns three subsidiaries operating in three different jurisdictions. 
 
Parentco is taxed on the income of Sub1, Sub2 and Sub3 under a blended CFC regime. The CFC tax rate is 10% (this is the foreign effective tax rate that will generate sufficient foreign tax credits to prevent the imposition of a CFC charge under the Blended CFC Tax Regime).
 
Subco1 in jurisdiction X has taxable income of 1 million euros. The GloBE ETR is 8%.
 
Subco2 in jurisdiction Y has taxable income of 5 million euros.The GloBE ETR is 15%.
 
Subco3 in jurisdiction Z has taxable income of 10 million euros. The GloBE ETR is 5%.
 
The CFC Tax of 1.5 million euros.
 
Step 1 – Calculate the Blended CFC Allocation Key
SubCo1: (10%-8%)* 1 million = 20,000 euros
 
SubCo2: (10%-15%)* 5 million = No Allocation
 
SubCo3: (10%-5%)* 10 million = 500,000 euros
 
Step 2 – Allocate Blended CFC Tax

SubCo1: 20,000/520,000 * 1.5 million = 57,692 euros

SubCo2:  No Allocation

SubCo3: 500,000/520,000 * 1.5 million = 1,442,308 euros

As noted above, SubCo 3 has the lowest GloBE ETR and the highest taxable income and as such is allocated most of the CFC tax. This would therefore push its GloBE ETR up, reducing any potential top-up tax. 
 
Where tax under the Blended CFC Tax regime arises to entities that aren’t constituent entities under the GloBE Rules, they are still included in the allocation formula but is ignored for calculating covered taxes for GloBE purposes. 
 
If the non-Constituent Entity is located in a jurisdiction in which the MNE Group does not compute a GloBE ETR,  the GloBE Jurisdictional ETR for the CFC allocation formula is based on the total income and taxes in the financial accounts for all non-Constituent Entities in the jurisdiction.
 
Assume in the example above, there were 2 subsidiaries in jurisdiction X, Subco1NonCE (250K) and Subsco1CE (income 750K). Subco1NonCE is not a constituent entity for the GloBE Rules.  This would change the calculation to:
 
Step 1 – Calculate the Blended CFC Allocation Key
Subco1NonCE: (10%-8%)* 250,000 = 50,000 euros
 
Subsco1CE: (10%-8%)* 750,000 = 15,000 euros
 
SubCo2: (10%-15%)* 5 million = No Allocation
 
SubCo3: (10%-5%)* 10 million = 500,000 euros
 
Step 2 – Allocate Blended CFC Tax
Subco1NonCE: 20,000/520,000 * 1.5 million = No Allocation as not a constituent entity
 

Subsco1CE: 15,000/520,000 * 1.5 million = 43,269 euros

SubCo2:  No Allocation

SubCo3: 500,000/520,000 * 1.5 million = 1,442,308 euros

 
Total 1,485,577
 
This leaves 14,423 euros of the blended CFC tax that was attributable to Subco1NonCE unallocated. 
Picture of Lee Hadnum
Lee Hadnum
Lee is a qualified Chartered Accountant and a former Senior Tax Analyst at Bloomberg Tax. Lee began his career in Ernst & Young's Entrepreneurial Services department and has 20 years of international tax planning experience.

Latest Articles

Norway Flag

Norway Pillar Two Filing Guide

April 23, 2026

A guide to Norway’s three compliance workstreams for Pillar Two (suppleringsskatteloven): the GloBE Information Return (GIR), the foreign-filer notification, and the Norwegian top-up tax return.

Read More »
Italian Flag

Italy Pillar Two Filing Guide

April 17, 2026

A guide to Italy’s three-track Pillar Two process: the reporting-entity notification, the DAC9/GIR (Comunicazione Rilevante), and the domestic GloBE Return (Dichiarazione fiscale Globe) with related F24 payments.

Read More »
australia flag

Australia Pillar Two Filing Guide

April 16, 2026

A guide to Australia’s Pillar Two filing. It covers the separate local GIR XML filing, the foreign lodgement notification, and the Combined Global and Domestic Minimum Tax Return (CGDMTR), including the Australian IIR/UTPR tax return and Australian DMT tax return. It also flags the main ATO validation rules and the software / API points that matter if you are building or testing a filing process.

Read More »
spain flag

Spain Pillar Two Filing Guide

April 13, 2026

A guide to Spain’s three-part Pillar Two workflow: model 240 (group/filing notification), model 241 (GIR-DAC9 information return), and model 242 (top-up tax self-assessment).

Read More »

This website is not affiliated with or related to the OECD. We provide independent insights and analysis on the OECD Two-Pillar Solution

image showing 'OECDpillars.com logo'
s2Member®

© 2026 OECDPillars.com 

All Rights Reserved