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 nature standard-setting, which draws on TNFD, means for where this is heading.
- TNFD vs IFRS S2 is a sequence. 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 is now writing nature-related disclosure requirements that draw on TNFD. It plans to publish them as a draft IFRS Practice Statement, alongside IFRS S1 and S2, in October 2026. Until then, no ISSB nature requirement applies.
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.
TNFD and IFRS S2 share the same financial materiality baseline
A recurring shorthand calls TNFD a “double materiality” framework. Its baseline is 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 is now writing nature-related disclosure requirements that draw on TNFD
This is where reporters most need discipline about what exists, because the ISSB’s position has moved. In November 2024 its nature work was a research project on biodiversity, ecosystems and ecosystem services, known as BEES, aimed at “additional specific disclosure requirements that would complement the requirements in IFRS S1”. In late 2025 the ISSB moved that work into standard-setting. It said it would draw on “TNFD’s recommendations, metrics and guidance, including the Locate, Evaluate, Assess, Prepare (LEAP) approach as appropriate”.
In April 2026 the ISSB chose the form: an IFRS Practice Statement that would complement IFRS S1 and IFRS S2 “without changing the requirements in the Standards”. In plain terms, when a company needs to report nature-related risks and opportunities under IFRS S1, the Practice Statement would explain how. Companies can choose to apply it, and jurisdictions can require it. A company that states compliance with it must meet all of its requirements.
On July 21, 2026, all 12 ISSB members agreed that balloting of the exposure draft could begin, and they set a 120-day comment period. The ISSB aims to publish the draft for public comment in October 2026. As of September 22, 2026, the draft has not been published, so no ISSB nature requirement applies yet.
The TNFD has stepped back to make room. It said it would complete its in-progress technical work by the third quarter of 2026 and pause any further technical guidance. The ISSB’s chair encouraged market participants to keep using the TNFD framework, saying it “will help them prepare disclosures in accordance with IFRS S1 and prepare for meeting future incremental ISSB disclosure requirements”.
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 and climate risk analysis provides, from a set of addresses or coordinates: protected-area proximity from OpenStreetMap (© OpenStreetMap contributors, ODbL 1.0), ecoregion context, deforestation and land-use change, and basin-level water stress. OpenStreetMap protected-area boundaries are mapped by contributors, so coverage varies by country. 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 bounded location data spine of a fuller 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 already inside its IFRS S1 obligation, a point the ISSB now makes itself. 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. The direction of travel is now on the record: the ISSB is writing nature requirements that draw on TNFD, and its chair has encouraged companies to keep using TNFD to prepare. Treating TNFD as the nature counterpart to your climate standard now means building on the framework the ISSB’s nature proposals draw from.
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. The ISSB’s proposed nature Practice Statement would explain how to report nature under IFRS S1 without changing IFRS S2.
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 is the part IFRS S2 does not have.
Will the ISSB adopt TNFD as a nature standard?
The ISSB is writing its own nature requirements and drawing on the TNFD framework to do it, including TNFD’s recommendations, metrics and LEAP guidance. It plans to publish them as a draft IFRS Practice Statement, alongside IFRS S1 and S2, for public comment in October 2026, with a 120-day comment period. Until the final version is issued, no ISSB nature requirement applies, and the ISSB has encouraged companies to keep using TNFD to prepare.
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.
