EBA Reporting Framework 4.3 for Third-Country Branches: What Institutions Need to Know
EBA Reporting Framework 4.3 for Third-Country Branches provides the technical specifications needed to implement harmonised supervisory reporting under the Capital Requirements Directive, commonly known as CRD VI.
Published by the European Banking Authority on 9 July 2026, the final technical package includes the Data Point Model, validation rules, XBRL taxonomies and supporting technical materials needed to implement the new reporting requirements.
The framework applies to branches established in the European Union by credit institutions headquartered outside the EU. Affected institutions should prepare for the first third-country branch reporting reference date of 31 March 2027.
What Is EBA Reporting Framework 4.3?
EBA Reporting Framework 4.3 is a technical reporting package developed by the European Banking Authority to support new and amended EU supervisory reporting requirements.
The wider Framework 4.3 release covers several areas of banking reporting. The technical package published in July 2026 specifically supports:
1. Supervisory reporting by third-country branches
2. A separate risk-assessment data collection for the EU Anti-Money Laundering Authority
The package does not create the underlying regulatory obligation. Instead, it translates the relevant legal and supervisory requirements into standardised data definitions, validation rules and structured reporting specifications that institutions and competent authorities can implement.
What Is a Third-Country Branch?
A third-country branch is a branch established in an EU Member State by a credit institution whose head office is located outside the European Union.
Unlike an independently incorporated EU subsidiary, a third-country branch remains part of its non-EU head undertaking.
CRD VI introduces a more harmonised framework for the establishment, regulation and supervision of third-country branches across the EU. It also expands the financial and regulatory information these branches must periodically report to their competent authorities.
What Does EBA Reporting Framework 4.3 for Third-Country Branches Include?
The final technical package provides the structured specifications needed to implement third-country branch reporting.
Data Point Model
The Data Point Model defines the reporting concepts, data points and semantic relationships used across the reporting framework. It helps establish a consistent interpretation of the information that institutions must report.
XBRL Taxonomies
The XBRL taxonomies provide the technical structure used to represent regulatory information in a standardised, machine-readable format. They support the electronic exchange of information between reporting institutions and competent authorities.
Validation Rules
The validation rules provide mathematical and logical checks that can be used to identify inconsistencies or data-quality issues within reported information. Institutions must assess how these rules will be incorporated into their reporting preparation and review processes.
Reporting Templates and Instructions
The package includes standardised templates and instructions defining the information to be reported and how the relevant templates should be completed.
Glossary Usage Exploration File
The Glossary Usage Exploration file provides a structured way to review glossary concepts, definitions and relationships within the Data Point Model.
Together, these components convert the regulatory reporting requirements into formats that institutions can implement within their data, reporting and submission processes.
What Must Third-Country Branches Report?
The framework introduces two principal sets of reporting templates.
Information About the Third-Country Branch
Branches must report financial and regulatory information relating to their own position, activities and compliance with applicable requirements. The reporting may include information relating to:
1. Assets and liabilities recorded by the branch
2. Financial position
3. Capital endowment requirements
4. Liquidity requirements
5. Activities carried out through the branch
6. Compliance with applicable prudential requirements
The final EBA report confirms that CRD VI includes reporting on assets and liabilities held on the branch’s books, together with information linked to capital endowment and liquidity requirements.
Information About the Head Undertaking
Branches must also provide quantitative and qualitative information about their non-EU head undertaking. Depending on the institution’s structure, the reporting may need to cover:
1. The undertaking that directly established the branch
2. An intermediate parent undertaking
3. The ultimate parent undertaking
The supervised third-country branch remains responsible for submitting the information, even when the underlying data must be obtained from another entity within the wider group.
How Does Proportionate Reporting Work?
The reporting framework uses a core-and-supplement approach based on the classification of the third-country branch.
1. All affected branches submit a core set of information.
2. Class 1 branches submit additional, more detailed information.
3. Class 2 branches are generally subject to a less extensive reporting set.
This approach is intended to ensure that reporting remains proportionate to the size, classification and complexity of the branch. The EBA states that smaller and less complex branches will submit a core set of key data, while larger and more complex branches will report additional details.
When Does Third-Country Branch Reporting Begin?
The first reporting reference date for the new third-country branch reporting requirements is 31 March 2027. The EBA postponed the first reference date to give affected institutions additional implementation time.
The Framework 4.3 package also supports a separate AMLA risk-assessment data-collection stream. Institutions should therefore distinguish between the third-country branch reporting requirements and the AMLA-related data collection when planning their implementation programmes.
Why Does EBA Reporting Framework 4.3 Matter?
The new framework is intended to improve the consistency and comparability of third-country branch reporting across EU Member States.
Historically, variations in national reporting practices made it more difficult for supervisors to obtain a complete and consistent view of the activities and financial position of third-country branches across the Union.
The framework introduces more uniform:
1. Reporting formats
2. Data definitions
3. Reporting frequencies
4. Branch-level information requirements
5. Head-undertaking information requirements
This gives competent authorities a more consistent basis for supervising banks and financial institutions and assessing the activities of third-country banking groups operating within the EU.
What Operational Challenges Should Institutions Consider?
Implementing EBA Reporting Framework 4.3 for Third-Country Branches will require institutions to coordinate data, responsibilities and controls across EU branches and non-EU head undertakings.
Cross-Border Data Collection
Required information may be distributed across branch systems, group platforms and systems operated by the non-EU head undertaking. Reporting teams will need controlled processes for requesting, receiving, reviewing and approving information across jurisdictions.
Data Mapping
Institutions must identify where each required data point currently resides and map it to the relevant EBA template, definition and reporting instruction. Existing data may not always align directly with the structure required by the framework.
Consistent Definitions
Different branches and group entities may use different accounting treatments, data classifications or internal terminology. Institutions will need to align these definitions with the EBA’s reporting specifications.
Reporting Ownership
Each reporting requirement should have a clearly assigned owner responsible for:
1. Preparing the information
2. Reviewing its accuracy
3. Resolving exceptions
4. Providing supporting evidence
5. Approving the final reported value
Validation and Exception Management
Institutions will need processes for identifying incomplete, inconsistent or potentially inaccurate information before submission. Validation issues should be assigned, investigated, resolved and documented through a controlled workflow.
Data Lineage and Traceability
Reporting teams should be able to trace reported information back to its underlying source systems, calculations, documents and approvals. This becomes particularly important when information is obtained from a non-EU head undertaking or another entity within the banking group.
Structured Report Preparation
Institutions must also prepare for the technical production and validation of the required structured regulatory reports. This includes assessing whether current systems can support the relevant EBA taxonomy, validation rules and submission requirements.
How Should Institutions Prepare for the March 2027 Reference Date?
Affected institutions should begin by assessing the new requirements against their current reporting processes. A structured readiness programme should include the following steps.
1. Confirm applicability. Determine which EU branches fall within the third-country branch reporting regime and how each branch is classified.
2. Review the templates. Identify which branch-level and head-undertaking templates apply to each reporting entity.
3. Map the required data. Map individual reporting requirements to existing systems, documents, calculations and data owners.
4. Identify cross-border dependencies. Determine which information must be obtained from the non-EU head undertaking, intermediate parent or ultimate parent.
5. Assign ownership. Assign responsibility for preparing, reviewing, validating and approving each reporting item.
6. Assess data gaps. Identify information that is not currently available, not collected at the required level of detail or not aligned with EBA definitions.
7. Establish validation controls. Define the checks needed to identify missing information, inconsistencies and reporting exceptions before submission.
8. Design review and approval workflows. Establish clear review stages, escalation procedures and sign-off responsibilities.
9. Prepare for structured reporting. Assess whether current regulatory reporting systems can generate, validate and submit the required structured reports.
10. Test before the first reference date. Conduct trial data collections and reporting dry runs to identify gaps before 31 March 2027.
Early preparation can help institutions resolve data, system and ownership issues before the reporting requirements take effect.
Frequently Asked Questions
What is EBA Reporting Framework 4.3 for Third-Country Branches?
EBA Reporting Framework 4.3 for Third-Country Branches is the technical package supporting harmonised supervisory reporting by EU branches of credit institutions headquartered outside the European Union. It includes the Data Point Model, validation rules, XBRL taxonomies and related technical materials.
Does Reporting Framework 4.3 apply to every bank?
No. The third-country branch component applies to branches operating in EU Member States whose head undertaking is located outside the European Union. Other elements of the wider EBA Reporting Framework 4.3 may apply to different types of regulated institutions.
Is the framework based on CRD V or CRD VI?
The harmonised third-country branch regime is introduced under CRD VI, Directive (EU) 2024/1619. Some third-country branch reporting obligations existed under CRD V, but CRD VI expands the regime and introduces additional requirements, including information about head undertakings and originated assets and liabilities.
When does third-country branch reporting begin?
The first reporting reference date is 31 March 2027.
What information must third-country branches report?
Branches must report financial and regulatory information about their own activities and position. They must also provide quantitative and qualitative information about their non-EU head undertaking. The technical package organizes reporting into distinct branch-level modules (TCB_CORE, TCB_LIQUIDITY) and a dedicated head-undertaking module (TCB_HU).
Who is responsible for reporting head-undertaking information?
The supervised third-country branch remains responsible for submitting the required information, even when the data must be obtained from its head undertaking or another parent entity.
What is the core-and-supplement approach?
The core-and-supplement approach applies a common core dataset to affected branches while requiring additional information from Class 1 or more complex branches. The modular structure (TCB_CORE baseline combined with TCB_HU and TCB_LIQUIDITY) implements the EBA’s proportionate reporting model, applying a baseline set of data to all branches and supplementary details to larger or more complex entities.
Does Ez-XBRL produce the final EBA XBRL submission?
Ez-XBRL will generate and validate the final XBRL packages against Taxonomy Package 4.3 and EBA Filing Rules v5.9.
Preparing for EBA Reporting Framework 4.3
The first third-country branch reporting reference date is 31 March 2027, but affected institutions may require significant preparation before reporting begins.
Implementing EBA Reporting Framework 4.3 for Third-Country Branches will require coordinated data collection, clear ownership, consistent definitions, effective validation controls and governed review processes across branches and head undertakings.
Ez-XBRL generates and validates the final XBRL packages against Taxonomy Package 4.3 and EBA Filing Rules v5.9.
Generate and validate your final EBA XBRL packages with Ez-XBRL.
