XBRL Guides & Tutorials
Expert guidance for ESEF, Solvency II, COREP/FINREP, OneGate and xBRL-CSV compliance
ESEF 2026: What's Changing for Issuers
A comprehensive guide to the 2026 ESEF taxonomy updates, new filing requirements, and ESRS integration timeline.
Fixing Common ESEF Validation Errors
Step-by-step solutions for the most frequent ESEF validation errors, with examples and prevention tips.
ESEF Report Package Structure Explained
Complete guide to creating valid ESEF report packages with correct folder structure, naming conventions, and metadata.
Creating ESEF Extension Taxonomies
How to properly create, structure, and validate extension taxonomies for ESEF reports with custom concepts.
ESEF Tagging Best Practices
Expert tips for accurate, consistent, and maintainable ESEF tagging across your financial statements.
ESEF Anchoring: Complete Guide
Everything you need to know about ESEF anchoring requirements, wider-narrower relationships, and common mistakes.
ESEF Block Tagging for Notes
How to correctly apply block tagging to notes disclosures in your ESEF report.
Complete ESEF Filing Checklist
Step-by-step checklist to ensure your ESEF submission is complete and valid before filing.
Migrating from XBRL-XML to xBRL-CSV
Complete guide to transitioning your EBA reporting from XBRL-XML to the new xBRL-CSV format before the 2026 deadline.
xBRL-CSV Package Structure
Detailed guide to creating valid xBRL-CSV packages with correct folder structure and file formats.
Complete OneGate Filing Guide
Step-by-step guide to submitting XBRL reports to Banque de France via the OneGate portal for French banking supervision.
OneGate Rejection Codes Explained
Complete reference guide to OneGate rejection codes with causes and resolution steps for faster error correction.
ACPR Remittance Format Requirements
Technical guide to ACPR remittance format specifications for French prudential reporting submissions.
Banque de France XBRL Submission Guide
Guide to XBRL submission requirements for Banque de France statistical and prudential reporting.
OneGate A2A Integration Guide
Technical guide to implementing Application-to-Application (A2A) automated submissions to OneGate.
French Regulatory Reporting Timeline
Complete calendar of French regulatory reporting deadlines for ACPR, Banque de France, and AMF submissions.
Solvency II Taxonomy Version Guide
Navigating EIOPA taxonomy packages, entry points, and version selection for Solvency II reporting.
Solvency II QRT Validation Guide
How to validate Quantitative Reporting Templates (QRT) against EIOPA rules and resolve common errors.
Solvency II QRT Reporting Guide
Comprehensive guide to Quantitative Reporting Templates (QRT) for Solvency II insurance reporting.
EIOPA Taxonomy Navigation Guide
How to navigate and use EIOPA Solvency II taxonomy packages for accurate insurance regulatory reporting.
SFCR XBRL Requirements
Guide to XBRL requirements for Solvency and Financial Condition Report (SFCR) public disclosure.
RSR Reporting Best Practices
Guide to Regular Supervisory Report (RSR) preparation and XBRL submission for insurance undertakings.
Solvency II Validation Rules Explained
Understanding EIOPA's technical and business validation rules for Solvency II XBRL submissions.
Insurance Regulatory Reporting Timeline
Complete calendar of Solvency II reporting deadlines for insurance undertakings across the EU.
COREP Reporting Requirements Guide
Comprehensive overview of Common Reporting (COREP) requirements, templates, and submission obligations for banks and investment firms.
FINREP Validation Best Practices
Expert guidance on validating Financial Reporting (FINREP) submissions to avoid common errors and ensure NCA acceptance.
EBA Filing Rules Explained
Detailed explanation of EBA filing rules for COREP, FINREP, and other prudential reports including naming conventions and technical requirements.
Migrating to xBRL-CSV for Banking Reports
Step-by-step guide for banks transitioning COREP/FINREP submissions from XBRL-XML to xBRL-CSV format.
DPM 2.0 Implementation Guide
Understanding the Data Point Model 2.0 changes and how to implement them in your COREP/FINREP reporting.
Common COREP/FINREP Validation Errors
Guide to understanding and fixing the most frequent COREP and FINREP validation errors encountered during submission.