The first major filing season under the OECD’s Pillar Two global minimum tax framework presented significant challenges for multinational businesses, tax advisers and regulatory authorities across multiple jurisdictions.
In the first installment of a Tax Notes series, journalist Stephanie Soong examines the operational difficulties experienced during the inaugural Global Anti-Base Erosion (GloBE) reporting cycle, particularly ahead of the 30 June 2026 filing deadline.
The article highlights several obstacles encountered by organizations preparing GloBE Information Returns (GIRs), including delayed tax authority portal openings, XML validation errors, inconsistent jurisdictional requirements and limited opportunities to test filing systems before submission.
Contributions from international tax professionals illustrate how these challenges complicated reporting processes, even for organizations that had begun preparing well in advance. Differences in regulatory interpretations and technical requirements also created uncertainty around whether submitted returns would be accepted across jurisdictions.
Despite these difficulties, the first filing cycle provided important lessons for multinational groups and tax authorities. Stronger data preparation, improved testing environments, clearer regulatory guidance and earlier coordination could help make subsequent reporting cycles more manageable.
This article establishes the context for the second installment of the Tax Notes series, which examines how regulatory reporting software providers, including DataTracks, responded to these technical and operational challenges.
Read Full Article – Part 1 (Subscription Required)
Industry Coverage | International | Stephanie Soong
