
UK publishes draft legislation to implement the OECD’s Side-by-Side Pillar Two package
On July 13, 2026, the UK government published draft Finance Bill 2026–27 legislation implementing the OECD’s January 2026 Side-by-Side package.
• Covered taxes that are not reflected in the current tax figure in the P&L account, but are expensed elsewhere are added to covered taxes under Article 4.1.2(a) of the OECD Model Rules to ensure they are taken into account.
• Where a Pillar Two GloBE loss deferred tax asset election is made, any amount of this that is used in a fiscal year is added back under Article 4.1.2(b) of the OECD Model Rules. This is required as the unwinding of the deferred tax loss needs to be reflected in the P&L, just as it would be under standard deferred tax accounting. See more information on this election at GloBE loss deferred tax asset election.
Ie even if an election wasn’t made for the loss, the unwinding of the deferred tax asset would be:
Dr P&L Deferred Tax,
Cr Balance sheet – Deferred Tax
This simply replicates this treatment.
• An amount of current tax expense that relates to an uncertain tax position is generally not included in covered taxes. An uncertain tax position is an accounting concept (eg for IFRS purposes this is provided by IFRIC 23 (‘Uncertainty over Income Tax Treatments’)). It generally applies where there is uncertainty about whether a tax authority will accept the tax treatment under the local tax law.
For instance, if an MNE took a view that a capital gain would be taxed at 10% but there is a high probability the tax authority would tax it at 20%, the current tax expense would initially reflect the 10% tax.
However, a further accounting entry would include an addition to the current tax expense to reflect the 20% tax:
Dr Current Tax in the P&L,
Cr Provision in the Balance Sheet
When the uncertainty ceases the provision is then released.
For the purposes of covered taxes, uncertain tax positions are not included. However, if they are subsequently paid, they are added to covered taxes.
• As discussed at in the adjustments to GloBE income, a Qualified Refundable Tax Credit is a refundable tax credit paid as cash or available as a cash equivalent within four years from the date when a constituent entity satisfies the conditions for receiving the credit. This is treated as income for Pillar Two GloBE income purposes.
Therefore, if the amount of Qualified Refundable Tax Credit has been reflected as a reduction to the current tax expense, this needs to be reversed and the amount is added back to covered taxes.
If the amount was included in financial accounting income anyway, no adjustment is required. See our Members article on the Pillar Two treatment of R&D tax credits internationally:
Analysis of R&D Tax Credit Regimes Internationally and Their Treatment Under Pillar Two
• If the underlying income is excluded from the Pillar Two GloBE income calculation, any amount of covered taxes that relate to that excluded income also needs to be removed from the covered tax calculation under Article 4.1.3(a) of the OECD Model Rules.
For more information on income excluded from the Pillar Two GloBE income calculation see Pillar Two GloBE Income Adjustments.
This is required as otherwise the adjusted covered taxes of a constituent entity could be significantly inflated and the ETR would be significantly raised, reducing any potential top-up tax liability.
Example
MNECo1 is a member of an MNE group subject to the Pillar Two GloBE Rules. Its financial accounting profit is 10,000,000 euros.
The domestic tax rate is 10% and for the sake of simplicity, we assume financial income equals taxable income. The corporate income tax charge reflected in the accounts would be 1,000,000 euros.
For Pillar Two GloBE Income purposes, the financial accounting profit includes an excluded dividend from a related MNE group entity of 5,000,000 euros.
This is therefore excluded from Pillar Two GloBE income. As the tax reflected in the financial accounts is 1,000,000 euros this would equate to a Pillar Two ETR of 20% (1,000,000/5,000,000). Which would take MNECo1 outside the scope of any top-up tax liability.
Therefore, the tax attributable to the excluded dividend is also excluded from the adjusted covered tax calculation:
(5,000,000/10,000,000)* 1,000,000 = 500,000 euros.
Adjusted covered tax is reduced from 1,000,000 euros to 500,000 euros which would then reduce the Pillar Two GloBE ETR to 10%.
• Whilst Qualified Refundable Tax Credits are treated as Pillar Two GloBE income, Non-Qualified Refundable Tax Credits are not.
Ie they are treated as a reduction to the current tax expense in the financial accounts.
If the accounting treatment follows this, then no adjustment is required.
However, if for accounting purposes the tax credit is reflected as income in the P&L account this would need to be reversed and the amount of tax credit would be removed from the current tax expense, as provided in Article 4.1.3(c) of the OECD Model Rules.
• Similarly, any other covered taxes refunded or credited to the constituent entity are treated as a reduction in covered taxes if they aren’t reflected as a reduction to the current tax expense in the financial accounts.
In other words, if for accounting the accounting credit has gone somewhere else in the P&L (eg income or a reduction in other expenses), then an adjustment is made for Pillar Two purposes to reduce adjusted covered taxes.
• As discussed above, an amount of a current tax expense that relates to an uncertain tax position is deducted from covered taxes under Article 4.1.3(d) of the OECD Model Rules.
• Any amount of the current tax expense that is not expected to be paid within three years of the end of the fiscal year must also be deducted from covered taxes under Article 4.1.3(e) of the OECD Model Rules.
Adjusted covered taxes are the financial accounting profits of the entity as adjusted for Pillar Two purposes. The Pillar Two rules require a number of adjustments to try and result in a standardised measure of tax for all IF members. This is then used along with GloBE income to calculate the GloBE ETR.
There are a number of adjustments which include removing tax related to income excluded from the Pillar Two Rules, adjusting for refundable tax credits and adjusting for deferred tax.

On July 13, 2026, the UK government published draft Finance Bill 2026–27 legislation implementing the OECD’s January 2026 Side-by-Side package.

On July 1, 2026, Australia issued the Taxation (Multinational—Global and Domestic Minimum Tax) Amendment (2026 Measures No. 2) Rules 2026. This incorporates elements of the OECD Agreed Administrative Guidance issued in December 2023, June 2024 and January 2026.

On June 26, 2026, Cyprus issued Decree 272/2026 to confirm entry-into-force dates for the main January 2026 OECD safe harbour package

On June 22, 2026, the UAE issued Ministerial Decision No. 96 of 2026 to implement the OECD Side-by-Side Tax Package.

On June 26, 2026, Turkey announced an extension to the filing of its GloBE tax return and payment from June 30, 2026 to July 31, 2026.

On June 16, 2026, the Dutch Ministry of Finance opened an internet consultation on the Draft Safe-Harbour Bill. The consultation closes on 14 July 2026 and provides draft legislation to implement the OECD Side-by-Side package into the Dutch domestic regime.

On June 15, 2026, the Cyprus Tax Department issued two announcements on the domestic implementation of the Pillar Two framework. The first concerned the European Commission’s position on Cyprus’ Income Inclusion Rule (IIR). The second addressed filing deadlines and compliance obligations for Cypriot constituent entities and joint ventures under Law 151(I)/2024.

On June 10, 2026, the EU issued the ‘Manual for MNE Groups on Global Minimum Tax (Pillar Two) Compliance Obligations‘. This provides country level analysis of Pillar Two filings in Austria, Belgium, Croatia, Cyprus, Czech Republic, Finland, France, Germany, Greece, Ireland, Poland, Romania, Slovenia and Sweden.

A practical overview of the Dutch GloBE Information Return (GIR) filing process, including BIA terminology, deadlines, XML format, Digipoort submission, security, validation, notification obligations and governance controls.
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