XBRL:

The Essentials for Internal Auditors

Training Introduction:

As financial reporting continues to become more digital, XBRL (eXtensible Business Reporting Language) has emerged as the standard for structured data submission to regulators such as the SEC in the U.S. and ESMA in Europe. For internal auditors, this shift introduces new risks, controls, and assurance responsibilities.

This training provides internal auditors with the foundational knowledge and audit techniques needed to understand XBRL, evaluate tagging accuracy, ensure compliance with regulatory requirements, and assess the controls surrounding XBRL processes within the organization.

 

Learning Objectives:

By the end of this course, participants will be able to:

• Understand the purpose, structure, and use of XBRL in financial reporting
• Identify key risks and control points in XBRL tagging and submission processes
• Assess XBRL data quality, taxonomy usage, and compliance with regulatory standards
• Plan and execute internal audits over XBRL-related processes

 

Target Audience:

• Internal and External Auditors
• Financial and IT Auditors
• Compliance Officers
• Financial Reporting and Accounting Teams
• Risk Management Professionals

 

Format & Duration:

• 4 focused modules
• Format: 1-day workshop or 4-part virtual series
• Includes real-world examples, demo tools, and audit checklists

 

Course Modules Overview

Module 1: Introduction to XBRL and Its Regulatory Importance

Objective: Build foundational knowledge of XBRL, including its purpose, structure, and global use in financial reporting.

Topics:

• What is XBRL and why does it matter?
• Key concepts: taxonomies, tags, instance documents, schemas
• Regulatory use of XBRL (e.g., SEC EDGAR, ESMA ESEF)
• Role of XBRL in digital financial reporting, analytics, and transparency
• Overview of XBRL architecture and data flow
• Stakeholders involved: preparers, filers, regulators, vendors
• Exercise: Explore and analyze a real XBRL filing using an online viewer (e.g., SEC IDEA)

Module 2: XBRL Filing Processes and Associated Risks

Objective: Understand the internal processes, systems, and risks involved in preparing and submitting XBRL filings.

Topics:

• The XBRL reporting workflow (preparation to submission)
• Use of software tools and third-party vendors
• Common XBRL errors and challenges:
• Incorrect tagging
• Inconsistent taxonomy use
• Validation and filing rejections
• Internal controls over:
• Mapping and tagging
• Review and sign-off
• Version management and updates
• Exercise: Identify potential process gaps in a sample XBRL filing workflow

Module 3: Auditing XBRL Data Quality and Compliance

Objective: Apply audit techniques to assess the quality, accuracy, and regulatory compliance of XBRL filings.

Topics:

• Audit objectives in XBRL assurance
• Key control points: data accuracy, tag appropriateness, consistency with financials
• Tools and techniques for reviewing XBRL data
• Validation checks and error reports (e.g., SEC EDGAR Filer Manual rules)
• Materiality and risk assessment in XBRL audit planning
• Documentation and sampling methods for XBRL audits
• Exercise: Perform a review of selected XBRL tags from a public filing

Module 4: Enhancing Audit Value in a Digital Reporting Environment

Objective: Position internal audit to support evolving digital reporting, governance, and data integrity efforts.

Topics:

• Trends in digital and real-time reporting
• Integrating XBRL risk coverage into internal audit plans
• Collaborating with finance, IT, and external service providers
• Continuous monitoring and analytics in structured data environments
• Advising management on emerging risks (e.g., ESG tagging, AI and XBRL)
• Reporting audit results to stakeholders effectively
• Exercise: Draft a sample internal audit scope for an XBRL controls review

 

Training Materials & Deliverables:

• Slide deck (editable PowerPoint)
• Participant workbook
• Templates:
• XBRL controls checklist
• XBRL audit planning worksheet
• Common error and issue guide
• Filing process risk map
• Real-life SEC/ESMA examples
• Certificate of Completion

 

Certification:

Participants will receive a Certificate of Completion in XBRL Essentials for Internal Auditors
upon completion of the training and exercises.

 

Optional Add-ons:

• Tool walkthrough: Use of XBRL viewers, validation tools, or tagging software
• Country-specific or regulatory-specific module (e.g., SEC in the U.S., ESMA in Europe)
• Add-on module: Assurance on ESG XBRL tagging
• Instructor-led lab for live review of real-world XBRL filings