On May 18, 2026, the Organisation for Economic Co-operation and Development (OECD) released important guidance concerning implementation issues affecting multiple multinational enterprise (MNE) groups set to comply with the jurisdictional tax administration of the Pillar Two global minimum tax (GMT). This guidance comes in direct response to the first GloBE Information Return (GIR) filing deadline, which is set in many jurisdictions as early as June 30, 2026, for in-scope MNE groups. Specifically, many companies have voiced concerns with late-filing penalties that may arise due to jurisdictional delays in implementation of availability to receive GIR data and other technical challenges surrounding the Multilateral Competent Authority Agreement (MCAA) entered into by select jurisdictions.
The guidance notes that a collective of countries that have enacted the GMT have agreed to lessen or eliminate potential penalty exposure attributable to delays in portal availability for filing the GIR. Specifically, a publication of a list of countries that will have fully operational portals to receive GIR data by May 31, 2026, is provided for in the annex to the guidance. The guidance further notes that countries have agreed to use existing jurisdictional mechanisms available under domestic laws to waive penalties or suspend GIR filing requirement dates if a company has utilized the current MCAA to meet the central filing exception.
How Forvis Mazars Can Help
The guidance is timely for MNE groups facing a June 30, 2026, filing deadline for the first GloBE year. Nevertheless, swift action is still needed by countries to effectuate the substance of this guidance. Professionals at Forvis Mazars are actively monitoring further developments. Contact us to learn more about the practical ramifications of the guidance.