Published November 14, 2025Updated January 22, 202615 min read

Public CbCR: EU Directive 2021/2101 Compliance Guide, Scope, and iXBRL Format (2026)

EU Public CbCR requires large groups to publish income-tax KPIs by jurisdiction. Most calendar-year groups first report FY2025 and publish by 31 Dec 2026.

  • Borys UlanenkoCEO of ArmsLength AI
Public CbCR: EU Directive 2021/2101 Compliance Guide, Scope, and iXBRL Format (2026)
Contents

TL;DR key takeaways

  • If revenue exceeds €750m in each of the last 2 consecutive years, EU Public CbCR can apply (including to non‑EU groups via EU subs/branches).
  • For most calendar‑year groups, the first report is for FY 2025 and must be published within 12 months (by 31 Dec 2026).
  • Disclose revenues, PBT, current tax accrued, cash tax paid, employees, and accumulated earnings—EU Member States must be shown separately.
  • From FYs starting on/after 1 Jan 2025, reports generally must be filed in XHTML with Inline XBRL (iXBRL) under Implementing Regulation (EU) 2024/2952.

Sources

  1. 01Directive (EU) 2021/2101 (Public CbCR)
  2. 02Directive 2013/34/EU (Accounting Directive) — consolidated text incl. Articles 48a–48h
  3. 03Commission Implementing Regulation (EU) 2024/2952 (template + electronic format)
  4. 04Directive 2011/16/EU (DAC) — consolidated text (DAC4 Annex III CbCR instructions)
  5. 05EUR-Lex: National implementation measures for Directive 2021/2101
  6. 06European Commission: Public CbCR taxonomy project
  7. 07OECD BEPS Action 13 Final Report (context on confidential CbCR)

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