Welcome to the ATC Pillar2 Module Guide
Follow detailed instructions on using our Pillar2 solution in OneStream. Click below for a step-by-step walkthrough.
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ATC Pillar2 - Global Minimum Tax
M
Michelle
Updated: May 14, 2025
Description
Click through a step-by-step, interactive demo walkthrough, powered by Supademo.
Steps
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Welcome to the ATC Pillar2 Module Guide
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Let’s start by exploring the Pillar2 module. After logging in, click on the Pillar2 option to begin.
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Choose the desired period and scenario then click GO
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Users will see the relevant tax forms displayed under OnePlace - Workflow for the selected entity, scenario and period. To make adjustments, click the button to activate Workflow View.
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Under Workflow View, users can review full descriptions of an entity or jurisdiction, change the Scenario and Year and navigate to the desired sheet as needed.
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Step 1 - Entity Input Form Page
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Entity Schedule 01
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Also note that:
1. Blank white cells require manual input
2. Yellow cells source data from other cubes or forms
3. Light blue and Dark blue cells contain formulas that generate numbers automatically
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The Financial Amount column links to Finance Cube to leverage existing data.
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Click the button in the top-right corner to open guidance based on OECD information, helping users understand various data points.
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Once all adjustments are made according to the guidelines, a total amount of GloBE income or loss will be achieved.
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Entity Schedule 02
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Covered taxes under Pillar 2 refer to the total tax charge calculated in accordance with the Pillar 2 rules, which adjust for specific exemptions, inclusions, or exclusions as outlined in the framework.
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The layout resembles the GloBE income calculation. The Financial Amount column links to the Finance Cube, and users can manually input adjustments (Additions or Reductions). This process produces a revised figure reflecting tax expenses that are covered under Pillar 2.
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The schedule also includes adjustments to deferred tax expenses, following the same layout as current tax expenses. Both adjustments are essential for calculating the ETR under Pillar 2 and determining whether a jurisdiction requires a top-up tax.
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Entity Schedule 03
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Substance-Based Income Exclusion (SBIE) provides a carve-out for income that is linked to actual economic substance, such as physical assets or employees in a jurisdiction. This means that when the ETR is below 15%, the difference is not calculated over the GloBE income but over the Excess Profit, which results in a lower tax liability due to the presence of economic substance.
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Users can manually input figures based on Pillar 2 requirements, while the carve-out figure is automatically calculated.
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Entity Schedule 04
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The General Information schedule is an automatically generated summary page that provides key details about the entity, giving users an overview that will later be used at the jurisdiction level.
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Entity Schedule 05
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For Pillar 2 purposes, deferred tax expense needs to be recast to the minimum tax rate if the recorded deferred tax expense was calculated against a higher tax rate. This schedule calculates the recast of the deferred tax expense to the minimum rate for information that is captured in the Tax Reporting Solution. The outcome of this schedule can then be linked to the correct datapoint in the Covered Taxes Schedule.
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Step 2 - Jurisdiction Reports Page
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Jurisdiction Report 01
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After the information at the Entity level is filled, users can see the data roll up to the Jurisdiction level. Click the Calculate button to ensure the numbers are correct.
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Then follow the steps to complete the form. Step 1 includes two Yes/No questions related to Safe Harbour and QDMTT, with the default answers set to No.
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For example, if Safe Harbour is applicable, select Yes from the dropdown list and click Save. The calculation status will change to Needs Calculation; then click the Calculate button.
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Users will then see the data in the blue cells from Step 2 to Step 5 updated to reflect the situation when the Safe Harbour is applicable.
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The same applies to QDMTT: if it is applicable, the user selects Yes, then clicks Save and Calculate. The data from Step 2 to Step 5 will update accordingly.
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Step 6 allows users to adjust the jurisdictional top-up tax allocation by manually entering amounts in the Jurisdictional Top-up Tax Allocation ADJUSTMENT row for each base entity, in the jurisdiction's currency. After entering the values at the entity level, users can click Save and Run Calculate, and the jurisdictional-level amount will automatically recalculate accordingly.
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Jurisdiction Report 02
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In this overview, users can view a summary of GloBE Income, Covered Tax, and SBIE at the jurisdictional level, in the jurisdiction's currency. If the entity's currency differs from the jurisdiction's, the solution will automatically handle the currency conversion, requiring no manual input.
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In this example, the user can see that the amount of 100,428 EUR from entity AMC035 is converted to 146,540 CAD at the jurisdictional level.
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At the top of this summary, users can also view the ETR at the jurisdictional level.
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Step 3 - Global Report Page
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Global Report 01
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The first step to view the schedule is to run Calculate to ensure the numbers are accurate.
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The schedule provides an overview of the Jurisdictional Top-Up Tax allocation, including the Calculated, Adjustment, and After Adjustment amounts. The index column displays the Total, along with the amounts for each jurisdiction and entity.
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The user has the option to view amounts in either the desired reporting currency or their local currency. The solution will handle the currency conversion automatically, so no action is required from the user.
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Global Report 02
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The structure of this overview at the Global Review level mirrors that at the jurisdictional level. Users can view a summary of GloBE Income, Covered Tax, and SBIE at the global level. The user has the option to view amounts in either the desired reporting currency or their local currency. The solution handles currency conversion automatically, so no additional action is required.
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At the top of this overview, users can also view the ETR at the global level.
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Well Done!