ESEF & UKSEF Compliance Solutions Simplify Your Annual Reporting. Ensure Compliance. Reduce Risk. ActiveDisclosure® by DFIN is the trusted platform for UK and European listed companies to meet the evolving demands of ESEF and UKSEF reporting. Designed to streamline the entire process—from iXBRL tagging to XHTML conversion—our solution ensures your annual report is regulator-ready, on time, and fully transparent. Request demo Modern workflow Our clients Key features ESEF Resources ESG reporting Contact us FAQ One platform. Total control.From drafting to design, tagging to submission —ActiveDisclosure empowers your teams to collaborate seamlessly in one secure platform. Meet ESEF and UKSEF compliance with a single, secure solution. Download fact sheet A modern workflow to eliminate versioning errors and simplify collaboration—internally and externallyAvoid the risks and inefficiencies of circulating documents between departments or external partners. With ActiveDisclosure, your finance, legal, compliance, and ESG teams can collaborate in real time—alongside external legal counsel, auditors, and other stakeholders—while retaining control over branding and disclosure. Step 1: Collaborative Drafting Step 2: iXBRL Tagging Step 3: Design & Format Step 4: ESEF conversion & export Step 5: Future-proof Your Disclosure Strategy Step 1: Collaborative Drafting Draft and edit your annual financial report directly in our cloud-based platformCollaborate across finance, legal, compliance, and ESG teamsMaintain version control and audit trails throughout the process Step 2: iXBRL Tagging Apply automated iXBRL tags aligned with the latest ESEF IFRS taxonomyBuilt-in validation engine ensures accuracy and complianceSupported by DFIN – the world’s largest team of XBRL experts Step 3: Design & Format Style your annual reports with flexible, powerful formatting toolsEnsure brand consistency. Build investor-ready presentationsNo software installation required—everything is done within the ActiveDisclosure platform Step 4: ESEF conversion & export Convert your report to XHTML/iXBRL format for ESEF and UKSEF complianceRun final ESMA/FCA validations to ensure regulator readinessExport the final files for direct submission Step 5: Future-proof Your Disclosure Strategy ESEF Compliance – TodayFully supports current ESEF and UKSEF requirements with automated iXBRL tagging and XHTML conversion.ESG Reporting – Emerging StandardsPrepare for ESG disclosures aligned with ISSB and UK Sustainability Reporting Standards (UK SRS)—all within the same platform.Companies House Filing – Ready by 2027Be ready for the upcoming iXBRL mandate for Companies House submissions by 2027, ensuring seamless transition and compliance Schedule a demo Trusted by Leading Companies 6,000+ Clients Worldwide 160,000+ Regulatory Filings Annually 80% Time Saved in file conversion and tagging #1 Largest Team of XBRL Experts Globally ActiveDisclosure: Your all-in-one solution for ESEF and UKSEF reporting ESMA & FCA Compliance Built-in workbook templates and validations ensure your filings meet all regulatory standards. Seamless XHTML/iXBRL Conversion Convert your annual report directly within the platform—no software installation required. Built-in iXBRL TaggingAutomatically apply accurate tags aligned with the latest ESEF IFRS taxonomy. Collaborative ToolsEmpower finance, legal, compliance, and sustainability teams to work together efficiently. Expert Support & Advisory Access 24/7/365 support from the world’s largest team of XBRL specialists. Transparent Pricing No hidden fees—onboarding and training included. Schedule a demo Key Features on ActiveDisclosure: A Quick Overview How to Create Financial Presentations with ActiveDisclosure Explore Intelligent Excel Linking on ActiveDisclosure Introducing DFIN ActiveDisclosure: Fast, Secure, Accurate Financial Reporting ARTICLE ESEF Reporting in 2H 2025: What UK and European Listed Companies Need to Know As we enter the second half of 2025, the regulatory landscape for financial and sustainability reporting continues to evolve. For UK and EU-listed companies, the European Single Electronic Format (ESEF) and its UK variant (UKSEF) remain central to annual reporting obligations. Read now WHITE PAPERESEF Annual Reporting Inline XBRL ExplainedLearn how using iXBRL formatting in ESEF annual reporting will improve data quality, accessibility and continue the modernisation of financial and sustainability reporting. Learn more Future-Proof ESG Reporting That Drives Impact Unlock the Power of ESG Disclosure with ActiveDisclosure® ActiveDisclosure enables public companies to produce ESG reports that are: Accurate & Actionable Align with global standards like ESRS, CSRD, ISSB, and UK SRS— ensuring clarity and credibility. Index-ReadyStructured ESG data makes it easy for rating agencies and index providers to discover and assess your performance. Rating-BoostingImprove transparency and visibility to enhance ESG scores and attract responsible investors. Integrated & EfficientEmbed ESG metrics directly into your annual report workflow—no need for separate systems or manual formatting. Future-ProofedStay ahead of evolving ESG regulations with built-in taxonomy updates and expert support. Learn more Discover how ActiveDisclosure can simplify your ESEF and UKSEF reporting process. Schedule a demo or call +44 2030 4761 00 Frequently Asked Questions What is ESEF and why is it important? ESEF (European Single Electronic Format) is a mandatory digital format for annual financial reports required by ESMA for EU-listed companies. Read our blog article to learn more. Does ActiveDisclosure support UKSEF? Yes, it fully supports UKSEF requirements including XHTML formatting and iXBRL tagging. Is ESG reporting included? Yes, the platform is aligned with ESRS, CSRD, ISSB, and UK SRS standards for ESG disclosures. What are the functionalities of ActiveDisclosure for ESEF & UKSEF Annual Reporting? Feature Description XHTML / iXBRL Conversion Directly within the platform iXBRL Tagging Automated and taxonomy-aligned Validation Engine Ensures ESMA/FCA compliance Collaboration Tools Multi-team access and workflow Expert Support Onboarding, training and advisory Highly Secure Platform Auditable and cloud-based Do I need to install software? No installation required—ActiveDisclosure is cloud-based and easy to use. How secure is the platform for handling sensitive financial data? ActiveDisclosure is trusted globally for high-stakes capital markets transactions—including IPO due diligence and multi-billion-dollar M&A deals. Our platform is built with enterprise-grade security, role-based access controls, and full auditability to protect pre-market financial data. Learn more at our Trust Center What kind of support is available? 24/7/365 access to regulatory and XBRL experts, plus onboarding and training. 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