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TCFD vs IFRS S2: What Changed and What to Do Now

October 18, 2026
TCFD vs IFRS S2: What Changed and What to Do Now

IFRS S2 is the successor to the TCFD recommendations, not a rival to them. It keeps the same four pillars and 11 recommended disclosures, then adds mandatory requirements, more granular metrics and an expectation that the information can be audited. If you already report against the TCFD, you are upgrading existing work, not starting over. The rest of this guide explains what carries over, what is new, and how to plan the move.

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TL;DR

  • IFRS S2 is built on the TCFD's four pillars (governance, strategy, risk management, metrics and targets), so a company applying IFRS S2 does not need a separate TCFD report.
  • The main shift is rigor, not structure: TCFD was voluntary and often qualitative, while IFRS S2 is a standard designed for mandatory use, with industry-based metrics, Scope 3 disclosure subject to materiality and audit-ready data.
  • The TCFD was disbanded in 2023, and the IFRS Foundation took over monitoring of company progress.
  • Whether you must apply IFRS S2 depends on your jurisdiction. In the US, federal climate rules are stalled, but state laws and foreign operations still drive disclosure.
  • Start with a gap analysis of your last TCFD report against IFRS S2, then fix data, controls and governance.

Table of Contents

What the TCFD was, and why it ended

The Financial Stability Board (FSB) created the Task Force on Climate-related Financial Disclosures in 2015 and the Task Force finalized its recommendations in 2017. Its aim was to help companies give investors and lenders consistent, decision-useful information on climate risk. Adoption was voluntary in principle, though several jurisdictions later wrote the recommendations into their own rules.

The Task Force completed its work and was disbanded in October 2023, when it issued its final status report. The FSB had announced in July 2023 that the ISSB Standards marked the culmination of the TCFD's work. From 2024, the IFRS Foundation took over monitoring of companies' climate-related disclosures from the TCFD.

The practical meaning: the TCFD framework is no longer being developed. Its content lives on inside IFRS S2. Climate considerations are also spreading beyond reports into commercial documents, as in the climate clauses now entering UK government contracts.

How IFRS S2 builds on the TCFD

IFRS S2 Climate-related Disclosures is issued by the International Sustainability Standards Board (ISSB). The IFRS Foundation's own comparison of IFRS S2 with the TCFD recommendations describes the TCFD framework as four core recommendations and 11 supporting recommended disclosures, and S2 is consistent with all of them. The IFRS Foundation states that the requirements in IFRS S2 are consistent with the four core recommendations and eleven recommended disclosures published by the TCFD.

That is why practitioners say the move is mostly about governance and rigor rather than content. Your TCFD work on scenario analysis, risk processes and board oversight is still the foundation. What changes is how precisely you must quantify, how you connect climate to the financial statements and how defensible the numbers are.

Two structural points matter for planning:

  1. S2 sits on top of S1. Entities applying IFRS S2 must also apply IFRS S1, which sets the general requirements for sustainability-related financial information.
  2. Reporting location matters. The disclosures belong in general-purpose financial reports, which pulls them into the same governance and oversight as the financial statements.

TCFD vs IFRS S2 at a glance

DimensionTCFD recommendationsIFRS S2
StatusVoluntary framework; Task Force disbanded in 2023Standard designed for mandatory use where jurisdictions adopt it
StructureFour pillars, 11 recommended disclosuresSame four pillars, with more detailed requirements
Tone of disclosureOften qualitative, "as appropriate" languageSpecific requirements, designed to be auditable
Industry metricsNot prescribedIndustry-based metrics derived from SASB Standards
Scope 3 emissionsEncouraged as appropriateRequired, subject to materiality
Carbon credits, financed emissionsNot specifically addressedSpecific disclosure requirements
Where disclosedAnnual reports, standalone reportsMainstream general-purpose financial reports
Companion standardNoneIFRS S1 applies alongside

The extras in the table, industry-based metrics, carbon credit disclosures and financed emissions requirements, are the content additions the IFRS Foundation highlights when comparing the two.

Pillar by pillar: what is actually new

Governance

The TCFD asked you to describe board oversight and management's role. S2 keeps both but expects more detail on how responsibilities are assigned, how skills are built and how climate matters feed into strategy and risk decisions. The bigger point is organizational. Under S2, climate information appears alongside the financial statements, so the CFO, audit committee and board need to own it. Teams that kept climate reporting inside a sustainability or communications function will need to bring finance and internal control into the process.

Strategy

Both frameworks require you to describe climate-related risks and opportunities and their effect on the business model and value chain. IFRS S2 centers the test on what could reasonably be expected to affect cash flows, access to finance or cost of capital over the short, medium or long term. Expect to link strategy to financial position, performance and cash flows more explicitly than a typical TCFD report did, and to explain climate resilience using scenario analysis.

Risk management

The TCFD wanted a description of how you identify, assess, prioritize and monitor climate risks and how that integrates with enterprise risk management. S2 keeps that logic. The difference is evidence. Risk teams should be able to show a repeatable process, documented inputs and a clear link between climate risks and the wider risk register.

Metrics and targets

This is where most of the work lands. S2 adds industry-based metrics, requires absolute gross Scope 1, 2 and 3 greenhouse gas emissions (Scope 3 subject to materiality), and requires disclosure about carbon credits, internal carbon prices and targets. Practitioners often underestimate how much granular, industry-specific data S2 compliance needs, since the metrics derive from the SASB Standards. Materiality is also not an escape hatch: for many companies, climate risks and Scope 3 emissions are likely to be material enough to require robust quantification.

IFRS S2 metrics and target disclosure categories

Voluntary versus mandatory: the shift that matters most

Analysts commonly put the key difference this way: IFRS S2 is designed as a mandatory global reporting standard overseen much like financial statements, whereas the TCFD was a voluntary framework. Investors wanted climate information as reliable as traditional financial data, and S2 is the response.

That has three consequences for reporting teams:

  • Controls. Data collection needs documented procedures, ownership and review, just as for financial figures.
  • Assurance readiness. Expect auditors or assurance providers to test emissions data, assumptions and scenario inputs.
  • Consistency. Methods, boundaries and base years need to be stable year to year, or changes explained.

The IFRS Foundation's guidance on making the transition notes that the ISSB Standards build on the TCFD recommendations, so companies that already used them have a head start. Our own explainer on what changes when moving from TCFD to ISSB goes through the same ground from a reporting-team perspective.

Do you have to apply IFRS S2? It depends where you report

IFRS S2 is a standard, not a law. Mandatory use comes from national or regional regulators that adopt or reference it. The IFRS Foundation's April 2026 update on jurisdictional progress lists jurisdictions that have adopted or otherwise used ISSB Standards, or announced they will, including Australia, Brazil, Canada, Japan, Mexico, Singapore, the UK and several others. The list is based on information available to the IFRS Foundation as of the end of March 2026, so check the current position for each place you operate.

For US readers, three points apply:

  • The federal SEC climate rule is stalled and not moving toward enforcement in its current form, according to a 2026 regulatory summary, though it has not been formally rescinded.
  • The same source describes California's SB 253 and SB 261 as the main drivers for US-based companies, while other states consider similar laws. Confirm the current status and thresholds with counsel before relying on any state requirement.
  • Subsidiaries and suppliers of companies reporting in IFRS S2 jurisdictions, and investors or lenders asking for it, may need S2-aligned data even without a US mandate.

The FSB reports that jurisdictions are strengthening interoperability between ISSB Standards and other frameworks, which is meant to limit double reporting for multinational groups. Building to S2 is the most portable choice because it is designed as a global baseline.

Moving from TCFD to IFRS S2: a practical sequence

  1. Map your last TCFD report to S2. Use the IFRS Foundation's comparison document line by line. Mark each disclosure as met, partly met or missing.
  2. Test materiality properly. Document how you decided which climate risks and opportunities could affect cash flows, financing or cost of capital. Avoid concluding too early that Scope 3 is immaterial.
  3. Close the metrics gap. Identify the industry-based metrics that apply to you, and establish Scope 1, 2 and 3 inventories with a defined method and boundary.
  4. Build the data trail. Assign owners, keep source files, and run reviews before sign-off. The goal is data an assurance provider can test.
  5. Bring finance into governance. Involve the CFO, audit committee and board in review, so climate information is handled like other financial reporting information.
  6. Align timing and location. Plan to publish climate disclosures with the financial statements, not months later in a separate document.
  7. Plan for IFRS S1. Check how sustainability-related risks beyond climate will be covered.

The common pitfall is treating the move as a checklist exercise. A shift from compliance box-ticking to an enterprise value focus is what separates teams that adapt smoothly from those that rework their report every year.

Our view: treat S2 as the finance discipline it is

We train sustainability leads, controllers, risk officers and assurance practitioners, and the same pattern appears in the questions we hear. Teams ask which framework to pick. The better question is how quickly their data and governance can meet a finance-grade standard.

TCFD was a good entry point. It taught companies to think about scenarios, transition plans and board oversight. But a narrative-led report is hard to assure. IFRS S2 asks for numbers with a method behind them, and that changes who must be in the room. We see three skills gaps most often:

  • Reporting teams know the TCFD structure but have not worked through S2's industry metrics and its link to S1.
  • Finance and accounting staff understand controls but have not applied them to emissions or scenario data.
  • Assurance and internal audit need to know what evidence supports a climate disclosure before they are asked to review one.

Our programs are mapped to ISSB, ESRS, GRI and ISSA 5000, with server-validated assessments, so credentials reflect a real pass threshold rather than attendance. If you are choosing where to begin, start with the standard your regulator or investors will actually ask about, then build outward.

— Ransford

Build the skills to apply IFRS S2

If your team needs structured training on this transition, we offer a few routes:

For wider reading on the topic, see our ESG Insights library and the CFO-focused piece on IFRS S2 climate disclosures.

FAQ

Is TCFD reporting still mandatory?

The TCFD was a voluntary framework, although some jurisdictions made its recommendations mandatory through their own rules. The Task Force itself no longer exists. Where a regulator has replaced a TCFD-based rule with ISSB-based requirements, S2 applies instead, so check the rule in each jurisdiction where you report.

Can I keep reporting under TCFD instead of switching to IFRS S2?

If no law or investor requirement obliges you to use S2, TCFD-style reporting can still be a starting point. But the framework is no longer maintained, and the IFRS Foundation now monitors progress through IFRS S2. Because S2 contains everything in the TCFD recommendations, most companies are better off building toward it.

Does applying IFRS S2 mean I have also met the TCFD recommendations?

Yes, in substance. IFRS S2 is consistent with the four core recommendations and 11 recommended disclosures, so a company applying S2 does not need a separate TCFD report. The reverse is not true: TCFD reporting alone will not satisfy S2's additional requirements.

What are the four pillars of IFRS S2?

They are governance, strategy, risk management, and metrics and targets, the same four pillars the TCFD used. S2 adds more detailed requirements within each pillar, with the largest additions in metrics and targets.

Sources