The ESG regulatory
landscape, decoded
CSRD, ISSB, EU Taxonomy, TCFD — the compliance frameworks that now govern how companies disclose sustainability data. Understand what applies to you, when it applies, and how to prepare.
Regulations you need to understand
Each regulation has a different scope, a different jurisdiction, and a different assurance requirement. Here's what each one demands and how EcoLedger gets you to an audit ready disclosure without a consultancy retainer.
The EU's mandatory sustainability regime, reported under the European Sustainability Reporting Standards (ESRS). It demands a double-materiality assessment, disclosure across more than a thousand potential datapoints spanning environmental, social and governance topics, and limited external assurance the broadest and most evidence heavy framework most companies will face.
EcoLedger runs the full workflow: a guided double-materiality assessment, the complete ESRS datapoint register, structured evidence attached to every disclosure, internal sign off, and an XBRL tagged output your auditor can trace. The part that usually needs a consultancy assembling and evidencing the report becomes a self-serve, repeatable process.
The UK's endorsement of the ISSB standards (IFRS S1 & S2) as its national baseline for sustainability and climate related financial disclosure, with UK specific transition reliefs. It applies to listed companies and large entities, and replaces TCFD as the primary climate reporting expectation for UK reporters.
EcoLedger ships preset to the UK edition: the UK transition reliefs and climate-first phasing, key judgements and estimation uncertainty, a structured risk and opportunity register, scenario analysis and a full Scope 1–3 inventory exported as a Word-ready report that drops straight into your annual filing.
The EU's science-based classification of environmentally sustainable activity across six objectives. Companies must screen which activities are eligible, prove a substantial contribution while doing no significant harm (DNSH) and meeting minimum safeguards, then report the share of turnover, CapEx and OpEx that qualifies as aligned.
EcoLedger handles the two parts teams find hardest: the technical screening against the criteria, and the financial reconciliation. It walks you through eligibility and alignment, DNSH and safeguards checks, and produces a turnover / CapEx / OpEx breakdown reconciled to your accounts auditable, not a manual spreadsheet exercise.
The IFRS Foundation's global baseline for sustainability and climate disclosure. S1 covers general sustainability-related risks and opportunities; S2 covers climate with a TCFD aligned four pillar structure, industry based metrics and Scope 1–3 emissions. It's the standard that jurisdictions worldwide are adopting as their own which is exactly why it sits at the centre of everything else here.
EcoLedger is built on the ISSB engine and presets to whichever jurisdiction you report in. Structured risk and opportunity registers with current and anticipated financial effects, scenario analysis, targets with baselines, and a GHG inventory with the right emission factors one tool that scales from the international standard to every national adoption, with no double keying.
The UK's established energy and carbon disclosure regime. Large UK quoted companies, large unquoted companies and large LLPs must report annual UK energy use, Scope 1 and 2 greenhouse gas emissions and an intensity ratio within their directors' report every year, with prior-year comparatives.
EcoLedger turns raw activity data into a finished SECR statement: energy use, Scope 1 & 2 emissions calculated with current DEFRA factors, your chosen intensity metric, comparatives and the narrative formatted and ready to paste into the directors' report. A recurring annual chore becomes a few hours' work.
Australia's mandatory climate-reporting standard (AASB S2, built on ISSB S2), phased in by entity size. It requires disclosure across governance, strategy, risk management and metrics including Scope 3 emissions, with transitional relief in the early years.
EcoLedger presets the Australian edition with the group phasing and Scope 3 relief already applied, plus scenario analysis, transition planning and assurance-ready outputs. First-time reporters meet AASB S2 to standard without standing up an in-house reporting function or hiring advisers.
Canada's national standards (CSDS 1 & 2) from the Canadian Sustainability Standards Board, adapting the ISSB baseline for the Canadian market with made in Canada transition reliefs and a climate first phase in for public companies voluntary first, ahead of expected mandates.
EcoLedger presets the Canadian edition: the CSDS transition reliefs, climate first sequencing and a later Scope 3 timeline, all built in. Canadian filers get an ISSB grade disclosure with the local modifications already applied, ready to adopt early and scale as the requirement firms up.
Two laws that pull thousands of US companies into mandatory disclosure for the first time. SB 253 requires large companies doing business in California to report Scope 1, 2 and 3 emissions; SB 261 requires a climate related financial risk report for companies above a $500M revenue threshold.
EcoLedger covers both halves in one place: a complete Scope 1–3 GHG inventory for SB 253, and a TCFD style climate risk report for SB 261 structured, evidenced and repeatable year on year. US teams with no prior disclosure programme can comply without building one.
Climate disclosure for SGX listed issuers, moving from TCFD aligned reporting toward the full ISSB standards, phased by sector. Scope 3 and assurance expectations rise with each phase, so issuers face a moving target rather than a one off filing.
EcoLedger presets the Singapore edition with the SGX phasing and Scope 3 timing built in climate governance, scenario analysis and assurance ready outputs so issuers stay in step with each phase, and keep pace with the shift to ISSB, without external advisers.
Hong Kong's Sustainability Disclosure Standards (HKFRS S1 & S2), implementing the ISSB baseline for HKEX listed issuers. S1 covers sustainability-related risks and opportunities, S2 covers climate, with Scope 3 phased in and full adoption following a transition period.
EcoLedger presets the Hong Kong edition: HKEX ready disclosures, the local Scope 3 phasing and transition reliefs, scenario analysis and a complete GHG inventory. A brand-new requirement becomes a guided, repeatable workflow rather than a build from scratch project.
These regulations don't exist in isolation
Each framework relies on outputs from the others. Understanding the connections prevents duplication and identifies where one reporting effort serves multiple obligations.
All companies in scope of CSRD must also report their EU Taxonomy alignment — disclosing what share of their turnover, capex, and opex qualifies as environmentally sustainable under Taxonomy criteria.
IFRS S2 fully integrates the TCFD framework. Companies already reporting under TCFD will find the transition to ISSB largely familiar — the four-pillar structure, scenario analysis requirements, and Scope 1–3 emissions all carry through.
The EU has formally committed to interoperability between ESRS and ISSB standards. Companies reporting climate data under ESRS E1 will largely satisfy IFRS S2 requirements simultaneously — reducing the dual-reporting burden for multinational organisations.
The Sustainable Finance Disclosure Regulation requires asset managers and financial institutions to disclose ESG metrics at product and entity level. Much of this data — including Taxonomy alignment percentages — flows upstream from investee company CSRD reports.
The Corporate Sustainability Due Diligence Directive mandates value chain due diligence on human rights and environmental impacts. The findings feed directly into CSRD disclosure requirements, particularly for supply chain and social topics under ESRS.
SFDR Articles 8 and 9 funds must disclose the degree to which underlying investments are Taxonomy-aligned. This creates a direct dependency: financial product transparency relies on the quality of corporate-level Taxonomy disclosures under CSRD.
When does each framework apply to you?
Phased implementation means the compliance calendar varies by company size and type. These are the critical dates to plan around.
Don't wait for the deadline.
Deploy the infrastructure now.
Self-serve, audit-ready frameworks for CSRD, ISSB, and EU Taxonomy. Structured evidence. No consultants. Deployable in 48 hours.
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