TNFD vs IFRS S2 is less a choice than a sequence. TNFD took the disclosure architecture IFRS S2 gave climate, the same four pillars and the same materiality test, and pointed it at nature.
Most sustainability teams meet IFRS S2 (the ISSB’s global climate-disclosure standard) before they meet TNFD (the Taskforce on Nature-related Financial Disclosures, the voluntary nature-disclosure framework). That order is useful, because the two are built on the same frame. TNFD did not invent a new disclosure shape for nature; it took the shape IFRS S2 uses for climate and pointed it at nature.
That makes the practical question less “which one do we pick” and more “we already report climate under IFRS S2, so what changes when we add nature under TNFD.” The short answer: the scaffolding is the same, the materiality test is the same, and the new work is the part of nature that climate reporting never had to cover.
This piece walks three things: where the two frameworks share an architecture, where they actually diverge, and what the ISSB’s early-stage nature research project (BEES) does and does not tell you about where this is heading.
- The TNFD vs IFRS S2 question is really a sequence, not a choice. TNFD reuses the IFRS S2 disclosure architecture, the same four pillars and the same materiality test, and points it at nature.
- The materiality test is shared. Both run on financial materiality for the primary users of financial reports. TNFD adds an optional impact-materiality lens on top.
- The real divergence: IFRS S2 is climate-only. A financially material nature risk is already in scope under IFRS S1, but the impact lens and Strategy Disclosure D (priority locations) have no IFRS S2 equivalent.
- The ISSB’s nature work, known as BEES, is a research project, not a standard. The ISSB has agreed to consider TNFD in that research, with no timeline and no commitment to adopt.
Both frameworks stand on the same four pillars
IFRS S2 organizes climate disclosure into four pillars: Governance, Strategy, Risk management, and Metrics and targets. Those descend from the earlier climate framework, TCFD (the Task Force on Climate-related Financial Disclosures); the ISSB says its metric categories are “derived from the TCFD’s Guidance”.
TNFD deliberately adopted the same four pillars, describing its recommendations as “aligned with TCFD’s 11 recommendations and extended with” nature-specific additions. So a team that already runs an IFRS S2 climate disclosure has the governance committee, the strategy narrative, the risk process, and the metrics table it needs for nature too. The reporting structure carries over.
There is one structural difference worth naming, because it is where the extra nature work lives. IFRS S2’s third pillar is “Risk management”. TNFD’s is “Risk and impact management”, and TNFD adds a disclosure IFRS S2 has no equivalent for: Strategy Disclosure D, which is described in TNFD’s own text as “TNFD-specific, not in TCFD” and asks a reporter to “disclose the locations of assets and/or activities… that meet the criteria for priority locations”. Hold that difference; it returns below.
They use the same materiality test, and it is not double materiality
A recurring shorthand says TNFD is a “double materiality” framework. That is not its baseline. TNFD sets its default as the financial-materiality lens, in its own words: information that meets “the material information needs of capital providers as a baseline, consistent with the ISSB and the TCFD”.
In plain terms: TNFD’s starting point is the same question IFRS S2 asks. IFRS S2 and its parent standard IFRS S1 define material information as anything whose omission or misstatement “could reasonably be expected to influence decisions that primary users of general purpose financial reports make”. That is single, financial materiality, framed around the providers of capital. TNFD’s baseline sits on the same test.
(One precision note for anyone comparing wording: the operative ISSB test is financial materiality for primary users of general purpose financial reports. It is not “enterprise value materiality”; that phrase belonged to an early ISSB prototype and is not the language of the final standards.)
Where TNFD goes further is optional and additive. It offers a second lens on top of the baseline, for “the material information needs of stakeholders” concerned with a company’s effects on nature. That impact-materiality lens is the add-on IFRS S2 does not have. The baseline is shared; the second lens is TNFD’s extension.
| Dimension | IFRS S2 | TNFD |
|---|---|---|
| Topic scope | Climate-only (climate-related risks and opportunities) | Nature (biodiversity, ecosystems, dependencies and impacts) |
| Disclosure pillars | Governance, Strategy, Risk management, Metrics and targets | The same four, with Risk management widened to Risk and impact management |
| Materiality baseline | Financial materiality for the primary users of general purpose financial reports | The same financial baseline, consistent with the ISSB and TCFD, plus an optional impact-materiality lens |
| Nature-specific disclosure | None | Strategy Disclosure D, the priority-locations disclosure (TNFD-specific, not in TCFD) |
| Route to nature | Via the parent standard IFRS S1, only where a nature risk is financially material | A native method (the LEAP approach) for locating and screening nature dependencies and impacts |
| Legal force | A standard, mandatory only where a jurisdiction adopts it | Voluntary and market-led |
The real divergence: IFRS S2 is climate-only, and nature enters through IFRS S1
Here is the gap a climate reporter actually feels. IFRS S2 is a climate standard. Its scope is explicit: it “applies to (a) climate-related risks… and (b) climate-related opportunities”. Nature and biodiversity are not topics it covers.
That does not mean an ISSB-standards reporter has nothing to do about nature today. The hook is the parent standard, IFRS S1, which requires disclosure of “all sustainability-related risks and opportunities that could reasonably be expected to affect the entity’s cash flows, its access to finance or cost of capital”. A nature-related risk that is financially material to the business is therefore already in scope under S1, before any dedicated nature standard exists. And in the absence of a topic standard, S1 tells the reporter where to look: it names the CDSB biodiversity guidance as a reference and directs the reporter to “apply judgement”.
So the contrast is precise. IFRS S1 is not blind to nature. It even names dependencies and impacts directly, saying an entity’s “dependencies… and its impacts on those resources and relationships give rise to sustainability-related risks and opportunities for the entity”. But it recognizes them only as they become a financial risk to the entity. What TNFD adds is a structured method for the nature side (the location and dependency work of its LEAP approach), the impact-materiality lens, and the priority-locations disclosure. The gap is not “impact” in the abstract; it is the impact-materiality limb and the location disclosure, neither of which lives in IFRS S1 or S2.
The ISSB’s own nature standard is still research, not a rulebook
This is where reporters most need discipline about what exists. The ISSB has begun work on nature, but as of the ISSB’s November 2024 progress report it is a research project, not a standard. Its own description: the work plan “includes projects to research disclosure about… biodiversity, ecosystems and ecosystem services,” aimed at “additional specific disclosure requirements that would complement the requirements in IFRS S1”. That workstream is what the acronym BEES (biodiversity, ecosystems and ecosystem services) refers to.
Two things follow, and it is worth stating both plainly. First, there is no ISSB nature standard today, no exposure draft, and nothing that requires nature disclosure the way IFRS S2 requires climate disclosure. Anyone implying otherwise is ahead of the record.
Second, the research is tied to TNFD by the ISSB’s own hand. In the same report, the ISSB states it “agreed to consider the TNFD recommendations in its research on… biodiversity, ecosystems and ecosystem services that forms part of the ISSB new two-year work plan”. Read that for exactly what it says: the ISSB has agreed to consider TNFD in its research. It is not a commitment to adopt TNFD, and no timeline is attached. But it is a documented signal that the framework a company uses for nature today is the one the global standard-setter is studying as it builds what may come next.
The same location screen grounds both the TNFD step and the S1 nature question
Whichever route a reporter takes, the underlying evidence question is the same: where does the business physically touch nature, and how exposed is it there? TNFD’s priority-locations disclosure asks it directly, and an IFRS S1 assessment of a material nature risk needs the same locational grounding to be defensible.
That location screen is what Continuuiti’s nature analysis provides, from a set of addresses or coordinates: protected-area proximity from the World Database on Protected Areas (WDPA), ecoregion context, deforestation and land-use change, and water-stress flags. Measured against TNFD’s five criteria for a sensitive location, that covers four of the five at a screening level. It does not provide Key Biodiversity Area overlap, species data, or the ecosystem-service-provision information behind the fifth criterion, which a full assessment adds from specialist sources. And the deforestation layer measures tree-cover loss, a directional read on ecosystem change rather than a complete measure of ecosystem condition. It is the location data spine, bounded, not the whole assessment.
The point for an IFRS S2 reporter is that this evidence does double duty. The same screen that identifies priority locations under TNFD also grounds the “is this nature risk financially material” judgment that IFRS S1 already asks for. You locate once.
| Element | Carries over from IFRS S2? | Note |
|---|---|---|
| Governance | Yes | The same committee and oversight structure serves nature |
| Strategy | Yes | The strategy narrative extends to nature-related risks and opportunities |
| Risk management | Yes, widened | TNFD adds an impact limb: Risk and impact management |
| Metrics and targets | Yes | The metrics table structure carries; nature metrics are added |
| Materiality test | Yes | Same financial baseline; TNFD layers an optional impact lens on top |
| Nature method (LEAP) | New | Locating your interface with nature and screening dependencies and impacts |
| Strategy Disclosure D | New | The priority-locations disclosure, with no IFRS S2 equivalent |
What this means if you already report IFRS S2
A team reporting climate under IFRS S2 is closer to nature disclosure than it thinks. The four pillars carry over. The materiality test is the one it already applies. A material nature risk is arguably already inside its IFRS S1 obligation. What TNFD adds is the nature-specific method, the impact lens, and the priority-locations disclosure, plus the physical grounding to make location claims defensible.
TNFD is voluntary and market-led; IFRS S2 is a standard that becomes mandatory only where a jurisdiction adopts it. But the direction of travel is visible in the ISSB’s own words: it is researching nature disclosure, and it has agreed to consider TNFD in that work. Treating TNFD as the nature counterpart to your climate standard now is not a bet against the ISSB. It is using the framework the ISSB is studying.
For the framework mechanics this piece does not rebuild, see the TNFD hub and the LEAP walkthrough, and for what IFRS S2 requires on physical risk today, the IFRS S2 physical-risk disclosure guide.
Frequently asked questions
Does IFRS S2 cover nature or biodiversity?
No. IFRS S2 is climate-only; it applies to climate-related risks and opportunities. A nature-related risk that is financially material is instead captured by the general requirement in IFRS S1, which points reporters to biodiversity guidance and judgment in the absence of a dedicated standard.
Is TNFD a double-materiality framework?
No, not at baseline. TNFD’s default is financial materiality, “consistent with the ISSB and the TCFD”, the same test IFRS S1 and S2 use. TNFD adds an optional impact-materiality lens on top; that add-on, not the baseline, is what IFRS S2 lacks.
Will the ISSB adopt TNFD as a nature standard?
There is no such standard and no commitment to one. As of the ISSB’s November 2024 progress report, biodiversity, ecosystems and ecosystem services is a research project meant to complement IFRS S1, and the ISSB has “agreed to consider the TNFD recommendations” in that research. “Consider” is the accurate word; no timeline or adoption is stated.
We already report IFRS S2. What is the extra work to add TNFD nature disclosure?
The four-pillar structure and the materiality test carry over. The new work is the nature-specific method (locating your interface with nature and screening dependencies and impacts), the optional impact lens, and Strategy Disclosure D on priority locations, which has no IFRS S2 equivalent.
Frequently asked questions
Does IFRS S2 cover nature or biodiversity?
No. IFRS S2 is climate-only; it applies to climate-related risks and opportunities. A nature-related risk that is financially material is instead captured by the general requirement in IFRS S1, which points reporters to biodiversity guidance and judgment in the absence of a dedicated nature standard.
Does TNFD use the same materiality test as IFRS S2?
Yes, at baseline. TNFD’s default is financial materiality, in its own words ‘consistent with the ISSB and the TCFD’, the same test IFRS S1 and S2 apply for the primary users of general purpose financial reports. TNFD then adds an optional impact-materiality lens on top, and that add-on, not the baseline, is the part IFRS S2 does not have.
Will the ISSB adopt TNFD as a nature standard?
There is no such standard and no commitment to one. As of the ISSB’s November 2024 progress report, biodiversity, ecosystems and ecosystem services (BEES) is a research project meant to complement IFRS S1, and the ISSB has agreed to consider the TNFD recommendations in that research. ‘Consider’ is the accurate word; no timeline or adoption is stated.
We already report IFRS S2. What is the extra work to add TNFD nature disclosure?
The four-pillar structure and the materiality test carry over. The new work is the nature-specific method (locating your interface with nature and screening dependencies and impacts), the optional impact lens, and Strategy Disclosure D on priority locations, which has no IFRS S2 equivalent.
