IFRS S2 for Accountants: Definition, Recognition, Measurement and Disclosure

IFRS S2 is written for the same readers as financial statements: investors, lenders and other creditors deciding whether to provide resources to a company. It builds on IFRS S1, the common foundation for sustainability-related financial disclosures, and applies it to climate. That purpose shapes everything else in the Standard.

Other reporting frameworks address a company’s impact on the environment and society, for a wider audience. That is a different and legitimate purpose. S2 looks in the opposite direction. It does not ask how a company affects the climate. It asks how climate-related risks and opportunities could affect the company’s prospects: its cash flows, its access to finance and its cost of capital.

Because S2 serves investors, accountants can read it through four familiar questions: What does it define? When is something recognised? How is it measured? What must be disclosed? Each question still works for S2, but each gets a different answer. These questions are an analytical lens, not S2’s own structure.

1. Four questions, two sets of answers

Consider a manufacturer whose production process depends heavily on fossil fuels. It emits 100,000 tonnes a year. Management expects rising carbon costs and plans to replace equipment over the next decade.

An accountant’s first conclusion is that the plan requires no provision, because a plan to spend money in the future is not a present obligation. An investor, however, still wants to know what rising carbon costs and a ten-year investment programme mean for the company’s future cash flows. S2 is written to answer that question.

A decision not to recognise a provision does not settle whether climate-related information should be disclosed.

2. Definition: from obligation to exposure

For an accountant, definition decides what kind of item something is: an asset, a liability, income or an expense. S2 defines something else: what the company is exposed to.

It distinguishes two types of climate-related risk:

• Physical risks: acute events, such as floods and storms, and chronic changes, such as rising temperatures or sea levels.

• Transition risks: policy, legal, technological, market and reputational changes as economies move towards lower-carbon activity.

It also addresses opportunities, such as changes in products, processes or markets that could benefit the company.

For the manufacturer, flooding could interrupt production at a particular site. Carbon pricing could increase operating costs. New technology could make its existing equipment less competitive. Demand for lower-carbon products could create a market opportunity.

Each item is defined by its route to the company’s finances. “Climate change” is too broad to be useful to an investor. The task is to identify the mechanism: which activity, asset, supplier or customer relationship is affected, through what channel, and over what time horizon. A risk that matters for a factory with decades of remaining life may matter little for a product line expected to end in three years.

3. Recognition: from recognising to identifying

For an accountant, recognition is the gate into the financial statements. S2 does not even use the word. Risks and opportunities are identified, not recognised.

Financial reporting recognition and S2’s identification of climate-related risks and opportunities serve different purposes. Recognition determines which items enter the financial statements, while S2 focuses on risks and opportunities that could reasonably be expected to affect the company’s prospects over the short, medium and long term. S1 then applies a materiality filter: which information about those risks and opportunities could influence investors’ and lenders’ decisions?

This is not a looser recognition threshold. It is a different question. The manufacturer’s replacement plan fails the recognition criteria, but it may well pass the materiality filter because of its scale, timing and funding. The filter also works in the other direction. A matter’s wider environmental significance does not by itself make it material to investors. The company must connect the matter to its own prospects.

4. Measurement: from one amount to the quantities behind future amounts

For an accountant, measurement ends in an amount, and uncertainty is built into that amount through a best estimate. S2 does not end in a single number, because the conversion of climate exposure into money is itself uncertain.

Quantities. The manufacturer’s 100,000 tonnes would cost $3 million a year at a carbon price of $30, and $8 million at $80. The tonnes are a fact the company can measure today. The price is not. If the company reported only its own monetary estimate, its price assumption would be buried in the number. Reporting the quantity lets investors apply their own assumptions, in the same way that oil and gas reserves are reported in volumes rather than as a single value. This is why S2 requires Scope 1, 2 and 3 greenhouse gas emissions: direct emissions, indirect emissions from purchased energy, and other indirect emissions in the value chain. It also requires other cross-industry metrics, such as the proportion of assets exposed to physical or transition risks. Standardised measurement also makes these quantities comparable across companies.

Financial effects. Quantities do not replace money. S2 also requires information about how climate-related risks affect the company’s financial position, performance and cash flows now, and how those effects might develop. For the manufacturer, this means operating costs, investment, demand, margins and financing needs. S2 places these disclosures under Strategy.

Industry-specific information. The quantities that matter depend on the business. An indicator that is relevant to an electricity generator may explain little about a bank. S2 requires companies to consider whether its industry-based guidance applies to them, without making every listed metric compulsory.

Scenarios. Rather than collapsing uncertainty into a single estimate, S2 uses climate-related scenarios to test how resilient the company’s strategy and business model would be under different possible futures.

Uncertainty does not justify silence, either. S2 allows companies to omit quantitative financial-effect information only in specified circumstances, and even then they must explain why and provide qualitative information.

5. Disclosure: from supplement to substance

For an accountant, disclosure explains and supplements items recognised in the primary statements. S2 has no primary statements. Numbers and narrative alike, from financial effects to emissions, are presented as disclosures. Some of them refer directly to amounts recognised in the financial statements.

S2 is organised around the same four core content areas as S1: Governance, Strategy, Risk Management, and Metrics and Targets. Governance and Risk Management explain the oversight and processes behind the information. Strategy explains the business consequences and responses. Metrics and Targets show exposure and progress.

Because disclosure carries the whole weight, its internal connections matter. A target is only meaningful when its scope and assumptions are explained. A transition plan, if the company has one, must explain its key assumptions and dependencies; S2 does not require every company to have one. For the manufacturer, a list of environmental initiatives would not answer the investor’s question. Readers need to see how the identified risk connects to investment decisions, operating changes, funding and the indicators used to track progress.

6. Returning to the financial statements

The provision question

IAS 37 requires a present obligation arising from a past event, a probable outflow and a reliable estimate. Costs of operating in the future and expected future operating losses do not qualify, so the manufacturer’s replacement plan creates no provision. A public climate commitment may create a constructive obligation, but it leads to a provision only once the obligating event has occurred. The IFRS Interpretations Committee addressed this in its April 2024 agenda decision.

“No provision” does not mean the financial statements say nothing. IAS 37 also requires disclosure of contingent liabilities, and climate matters do not belong only in sustainability disclosures.

Where the two reports meet

Both reports serve the same investors, so the same business assumptions should run through both. A planned equipment replacement raises questions about useful lives. Higher operating costs or lower demand may affect impairment assumptions. These are possible connections, not automatic consequences.

S2 makes one connection explicit. It requires information about climate-related risks and opportunities for which there is a significant risk of a material adjustment, within the next annual reporting period, to the carrying amounts of assets and liabilities. The financial statements ask a closely related question about sources of estimation uncertainty under IAS 1.125 (IAS 8.31A once IFRS 18 applies).

More generally, S1 requires data and assumptions to be consistent with the financial statements to the extent possible, given applicable accounting requirements. Different requirements can justify different numbers, but unexplained contradictions are a problem. If the transition narrative assumes early replacement while depreciation assumes decades of unchanged operation, an investor reading both reports will notice.

Conclusion

S2 is investor information, and the accountant’s four questions show how it differs from financial statements while serving the same readers. Definition moves from obligation to exposure. Recognition gives way to identification and materiality. Measurement captures the quantities that drive future amounts, while scenarios test the resilience of the company’s strategy and business model. Disclosure moves from supplement to substance.

A future cost may not be a liability today. It may still be important information for investors today.