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EBA Pillar 3 Data Hub

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EBA Pillar 3 Data Hub

Created: 2026-06-10 Updated: 2026-06-25 Source count: 3

Updated 2026-06-25 based on S-2026-06-22-eba-pillar3-esg-disclosure-its — the EBA’s final draft Pillar 3 disclosure ITS (22 June 2026) extends the P3DH central-publication model from EU KM1 to ESG: the EBA will “centrally pre-fill and disclose ESG information in the Pillar 3 Data Hub on behalf of SNCIs based on supervisory reporting”, and will publish an updated mapping tool (Pillar 3 ↔ supervisory reporting) in 2026 plus a DPM/XBRL taxonomy for P3DH submission. This confirms and broadens the “disclosure as a computed output of the supervisory-reporting pipeline” thesis already on this page, and sharpens the assurance question to cover ESG datapoints (not just key metrics). Added a Key Point and an Open Question; reinforcing, not contradicting. (See also EBA Simplification and Efficiency Programme Milestone 4.) Created 2026-06-10 from S-2026-06-08-eba-p3dh-sncis (EBA Discussion Paper EBA/DP/2026/02 on extending the Pillar 3 Data Hub to SNCIs, 8 June 2026), synthesised with the related S-2026-04-10-eba-supervisory-reporting-simplification source — two sources now bear on the same theme of the EBA centralising and re-architecting the prudential disclosure/reporting data substrate, which under the schema promotes it from a Source-page note to a Topic page.

TL;DR

The Pillar 3 Data Hub (P3DH) is the EBA’s centralised single access point for EU banks’ Pillar 3 prudential disclosures, mandated by CRR3 (CRR Article 434). It went live for large and other institutions on 26 January 2026, with data from the June 2025 reference date [S-2026-06-08-eba-p3dh-sncis]. The governance-relevant development is the extension to Small and Non-Complex Institutions (SNCIs): rather than firms self-publishing, the EBA will itself calculate and publish SNCIs’ Pillar 3 disclosures from the supervisory reporting data those firms already submit (Article 430) — first publication Q4 2026 (template EU KM1 only), full set by 2028 [S-2026-06-08-eba-p3dh-sncis]. This turns disclosure from a firm-run reporting process into a centralised data-pipeline-and-mapping control, and is tightly coupled to the EBA’s broader supervisory-reporting simplification agenda [S-2026-06-08-eba-p3dh-sncis][S-2026-04-10-eba-supervisory-reporting-simplification].

Key Points

  • The P3DH is a centralised platform on the EBA website providing a single access point to Pillar 3 disclosures, established under the CRR3 mandate (CRR Article 434, Regulation (EU) 2024/1623); it went live for large and other institutions on 26 January 2026, with disclosures available from the June 2025 reference date, published “without any transformation” [S-2026-06-08-eba-p3dh-sncis].
  • Discussion Paper EBA/DP/2026/02 (8 June 2026, comments due 20 July 2026) sets out the extension to SNCIs, a structurally different model: because SNCIs report rather than self-publish, the EBA prepares and publishes their Pillar 3 disclosures on their behalf, calculated from Article 430 supervisory reporting data [S-2026-06-08-eba-p3dh-sncis].
  • ~2,300 SNCIs are in scope; listed SNCIs ≈ 4% (~90 institutions). For non-listed SNCIs the only currently applicable template is EU KM1 (key metrics, Article 447 CRR); ESG disclosures (Article 449a) apply to non-listed SNCIs from December 2027 [S-2026-06-08-eba-p3dh-sncis].
  • Staggered rollout: first publication Q4 2026 (reference date December 2025), EU KM1 only, for all SNCIs; full set of SNCI Pillar 3 requirements envisaged 2028 (reference date December 2027), conditional on the supervisory reporting framework carrying the necessary data points [S-2026-06-08-eba-p3dh-sncis].
  • Proposed steady-state publication dates: end-September for non-listed SNCIs; end-April or end-June (open question) for listed SNCIs, aligned with the Transparency Directive and CRR Articles 433/434(3) [S-2026-06-08-eba-p3dh-sncis].
  • Data ownership and sign-off: the institution’s existing sign-off of its supervisory reporting submission constitutes formal sign-off of the disclosed data; “full responsibility and ownership of the data remain with the reporting institutions”, with the EBA’s role “limited to ensuring that the simple calculations … run correctly” [S-2026-06-08-eba-p3dh-sncis].
  • Mechanisms: a CRR3-mandated mapping tool (supervisory reporting ↔ disclosure) plus a signposting tool; an internal calculation engine running EU KM1 formulas (DPM Studio, Annex I); a pilot exercise with volunteering SNCIs; a helpdesk (p3dh@eba.europa.eu); automatic recalculation/republication on resubmission via new XBRL.csv files [S-2026-06-08-eba-p3dh-sncis].
  • The P3DH-to-SNCIs work depends on the open Consultation Paper on revisions to the ITS on supervisory reporting (Commission Implementing Regulation (EU) 2024/3117), “Module 8 – Alignment of P3 for SNCIs”, published 10 April 2026 and closing 10 July 2026, which bridges remaining data gaps [S-2026-06-08-eba-p3dh-sncis].
  • This sits within the EBA’s wider supervisory-reporting simplification / burden-reduction agenda [S-2026-04-10-eba-supervisory-reporting-simplification], which the wiki already reads (under AI Governance Maturity Gap) as a data-governance story — reshaping the data-architecture substrate banks must evidence, not merely cutting compliance burden [S-2026-04-10-eba-supervisory-reporting-simplification].
  • ESG extension of the central-publication model (22 June 2026): the EBA’s final draft Pillar 3 disclosure ITS confirms the EBA will centrally pre-fill and disclose SNCIs’ ESG information via the P3DH from supervisory reporting (CRR3 Art 449a extends ESG disclosure to all institutions; non-listed SNCI ESG disclosures apply from December 2027). The EBA will publish an updated mapping tool linking Pillar 3 disclosures to supervisory reporting in 2026 and a DPM/XBRL taxonomy for P3DH submission — extending the EU KM1 mechanism (computed output + sign-off via supervisory reporting) to the more complex ESG datapoint set [S-2026-06-22-eba-pillar3-esg-disclosure-its].

Detail

What the P3DH is, and why the SNCI model differs

The P3DH is the operational expression of CRR3’s move to centralise prudential disclosures in a single EBA-run access point to enhance market discipline, comparability and data accessibility. Large and other institutions submit already-processed Pillar 3 reports that the EBA republishes unchanged. SNCIs are different by design: the EBA is mandated to derive and publish their disclosures from the supervisory reporting data they file with competent authorities under Article 430. This makes the disclosure a computed output of the supervisory reporting pipeline rather than a separately produced firm artefact [S-2026-06-08-eba-p3dh-sncis].

Governance and assurance implications

The proposed sign-off mechanism is the load-bearing point for assurance: by treating the regular supervisory-reporting approval as the disclosure sign-off, the EBA collapses two control points into one and asserts that “the margin for errors in EBA calculations are very minimum or inexistent” because the mappings are “simple and straightforward” [S-2026-06-08-eba-p3dh-sncis]. For a governance/assurance practitioner this raises concrete questions of control design: the integrity of the supervisory-reporting data, the correctness and version control of the EBA mapping tool and calculation engine, reconciliation between any firm self-publication and the EBA’s centralised figures during the transition, and the Article 432 omissions process (firms must notify the EBA at least one month before publication to suppress non-material/proprietary/confidential items) [S-2026-06-08-eba-p3dh-sncis]. The accountability framing — responsibility “remains with the reporting institutions” — means firms cannot treat centralisation as outsourcing the disclosure obligation.

Connection to the supervisory-reporting simplification agenda

The P3DH-to-SNCIs project is not standalone: it is gated on the open ITS-on-supervisory-reporting consultation (Module 8), and is justified on the same proportionality / cost-of-compliance logic that drives the EBA’s broader reporting-simplification work [S-2026-06-08-eba-p3dh-sncis][S-2026-04-10-eba-supervisory-reporting-simplification]. The two are best read together: simplification reshapes what and how banks report, while the P3DH reshapes how that reported data becomes public disclosure. Both act on the same prudential data substrate that BCBS 239 lineage and data-governance programmes already have to evidence [S-2026-04-10-eba-supervisory-reporting-simplification].

Practical Applications

  • Regulatory Readiness & Evidence: SNCIs (and their advisers) should treat the supervisory-reporting submission as the de facto disclosure control point — the evidence of accurate, signed-off reporting data becomes the evidence of accurate Pillar 3 disclosure. Map the EU KM1 data lineage end-to-end ahead of the Q4 2026 first publication.
  • Governance Framework Design: build the reconciliation and exception (Article 432 omission) controls into the disclosure governance framework, and define ownership of the mapping/calculation assumptions the EBA will apply.
  • Engagement watchpoint: comment deadline on EBA/DP/2026/02 is 20 July 2026; the coupled ITS-on-supervisory-reporting consultation closes 10 July 2026.

Open Questions

  • Whether the steady-state listed-SNCI publication date settles at end-April (Transparency Directive alignment) or end-June (audited-data stability) [S-2026-06-08-eba-p3dh-sncis].
  • Whether the “sign-off via supervisory reporting” model holds up as an assurance control once qualitative disclosures (listed SNCIs) are added, given qualitative data is not currently in the supervisory reporting framework [S-2026-06-08-eba-p3dh-sncis].
  • How firms should evidence the integrity of the EBA-side mapping tool and calculation engine, over which they have responsibility for the output but no direct control [inference — not addressed by the source].
  • Whether the “sign-off via supervisory reporting” assurance model holds once ESG datapoints (not just EU KM1 key metrics) are centrally pre-filled for SNCIs, given ESG data is more judgement-laden and qualitative than key-metric data [S-2026-06-22-eba-pillar3-esg-disclosure-its].

Sources

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