TCFD to ESRS E1 Mapping
TCFD (Task Force on Climate-related Financial Disclosures) recommendations were the dominant climate disclosure framework before CSRD. ESRS E1 was explicitly designed to be TCFD-compatible. Companies with mature TCFD disclosures have covered approximately 75% of ESRS E1 ground already.
TCFD (Task Force on Climate-related Financial Disclosures) recommendations were the dominant climate disclosure framework before CSRD. TCFD Governance → ESRS 2 GOV-1 (board oversight) and GOV-2 (management roles).
The TCFD four pillars and their ESRS E1 equivalents
TCFD Governance → ESRS 2 GOV-1 (board oversight) and GOV-2 (management roles). Direct mapping — TCFD governance questions map 1:1 to ESRS 2 governance requirements. Companies with TCFD governance disclosure need minor reformatting for ESRS 2.
TCFD Strategy → ESRS E1-1 (transition plan) and ESRS 2 SBM-3 (material IROs). ESRS E1-1 is more prescriptive than TCFD Strategy — requiring funded milestones and CapEx disclosure. TCFD Strategy disclosure provides a foundation but requires significant expansion.
TCFD Risk Management → ESRS 2 IRO-1 (risk identification process) and ESRS E1-2/E1-3 (policies and actions). Direct mapping — TCFD risk management process disclosure maps to ESRS 2 with minor reformatting.
TCFD Metrics and Targets → ESRS E1-4 (targets), E1-5 (energy), E1-6 (GHG emissions), E1-7 (removals), E1-8 (ICP), E1-9 (financial effects). ESRS E1 is significantly more granular than TCFD on metrics — requiring specific breakdowns and XBRL tagging that TCFD does not.
What ESRS E1 adds beyond TCFD
Impact materiality: TCFD uses financial materiality only — disclosing how climate affects the company. CSRD/ESRS adds impact materiality — disclosing how the company affects the climate. This double materiality dimension has no TCFD equivalent.
XBRL tagging: TCFD recommendations are narrative-focused. ESRS E1 requires every datapoint to be machine-tagged using the EFRAG ESRS XBRL Taxonomy — a technical requirement with no TCFD equivalent.
Third-party assurance: TCFD reporting is typically unassured. CSRD mandates limited assurance from the first reporting year — significantly raising the evidence standard.
Specific metric granularity: ESRS E1-6 requires GHG emissions by type (CO2, CH4, N2O etc.), by business activity, and Scope 3 by category. TCFD allows more aggregated emissions disclosure.
Internal carbon price disclosure: ESRS E1-8 requires disclosure of ICP usage — TCFD recommends this as best practice but does not mandate it.
TCFD, ISSB, and the convergence landscape
The TCFD was disbanded in October 2023, with the ISSB (International Sustainability Standards Board) taking over monitoring of TCFD adoption. IFRS S2 (Climate) is the TCFD successor standard — it consolidates TCFD recommendations into a formal accounting standard.
For companies reporting under both ESRS E1 (mandatory for EU CSRD companies) and IFRS S2 (mandatory in UK, Australia, Japan, Singapore and other jurisdictions): the ESRS-ISSB interoperability project has produced guidance showing where disclosures can be combined. Approximately 70% of ESRS E1 content satisfies IFRS S2 requirements.
The practical implication: companies with mature TCFD reports are well-positioned for both ESRS E1 and IFRS S2. The transition from TCFD to ESRS E1 is primarily about adding impact materiality, increasing metric granularity, and implementing XBRL tagging.
Frequently asked questions
If we have been doing TCFD for 3 years, how much additional work is ESRS E1?
Significant but manageable. Expect 40–60% additional effort depending on the depth of your existing TCFD disclosure. The main additions are: double materiality assessment documentation, ESRS-format financial effects quantification (E1-9), XBRL tagging, and mandatory third-party assurance.
Is TCFD still relevant now it has been disbanded?
Yes — TCFD recommendations remain the foundation of IFRS S2 and ESRS E1. TCFD has not been withdrawn; its monitoring function has transferred to ISSB. All TCFD-aligned disclosures remain valid and are explicitly recognised in both ESRS E1 and IFRS S2 interoperability guidance.
Does our UK TCFD mandatory disclosure satisfy CSRD for our EU subsidiary?
Partially — UK mandatory TCFD disclosure covers the financial materiality dimension. For CSRD compliance, your EU subsidiary must additionally complete a double materiality assessment, produce ESRS-format disclosures with XBRL tagging, and obtain EU-compliant third-party assurance. A UK TCFD report is a strong foundation but is not a substitute.