AASB climate reporting (Australia)

Why Should Anyone Care About Climate Reporting?

Imagine two Australian manufacturers. One operates a factory in an area increasingly exposed to floods. The other relies on energy-intensive equipment and suppliers facing rising carbon costs. A traditional financial snapshot may tell investors what these businesses earned last year. It may not explain how climate-related disruption could affect their costs, assets, supply chains or future plans.

That is the gap climate-related financial disclosure is designed to address. Australia’s AASB S2 standard asks in-scope organizations to explain the climate-related risks and opportunities that could affect their prospects—and how they govern, assess and manage them.

1. WHAT Is AASB Climate Reporting?

AASB climate reporting is the disclosure of information about an organization’s climate-related risks and opportunities under Australia’s sustainability reporting framework. For entities covered by the mandatory regime, the central climate standard is AASB S2 – Climate-related Disclosures.

AASB S2 is based on the international IFRS S2 standard developed by the International Sustainability Standards Board (ISSB), with Australian-specific modifications. It is designed to help users of general-purpose financial reports understand how climate issues may affect an entity’s cash flows, access to finance and cost of capital over the short, medium and long term.

The Four Pillars: The Framework’s Basic Blueprint

2. WHY Was Mandatory Climate Reporting Introduced?

Climate change can affect a business long before a climate event appears in its annual accounts. Flooding can interrupt operations; heat can affect worker productivity; changing energy rules can increase costs; and new customer preferences can reshape demand.

Investors need decision-useful information to assess these exposures. Before standardised requirements, companies could describe climate matters in very different ways, making comparisons difficult. Mandatory disclosures aim to improve consistency, transparency and accountability.

Why It Matters to Different People

3. WHO Needs to Comply?

The mandatory regime applies to entities that meet the relevant tests in the Corporations Act 2001 and associated rules. The tests generally consider revenue, consolidated gross assets and employee numbers. An entity usually needs to meet at least two of the three applicable size thresholds to fall within a size-based group. Other pathways can apply, including certain entities connected with the National Greenhouse and Energy Reporting scheme and asset owners.

The three groups are commonly summarised as follows. Treat this as an orientation guide—not a legal determination. Definitions, aggregation rules, exclusions and other eligibility provisions matter.

The thresholds are generally assessed using at least two of the three criteria for the relevant group. The start date refers to financial years beginning on or after that date, not necessarily the date a report is published.

Does This Affect Smaller Businesses Too?

A smaller business may not have a direct statutory reporting obligation. However, it can still feel the effects through its value-chain relationships. A large customer that must report may ask suppliers for information about purchased goods, transport, waste, energy use or other emissions data. In this way, climate reporting can travel through commercial relationships even when a supplier is not itself a reporting entity.

4. WHEN Does Reporting Happen?

Australia introduced mandatory climate-related financial disclosure in phases. The applicable group determines when an entity’s first reporting period begins. The report is generally prepared for the relevant annual reporting period and lodged in accordance with the Corporations Act requirements.

A company should confirm its own year-end, group eligibility, first applicable period and any transitional provisions. The phase-in date alone does not tell a reader the exact filing deadline for every entity.

5. WHERE Does AASB Climate Reporting Fit?

AASB S2 sits within Australia’s broader sustainability reporting framework. The AASB develops the reporting standards. The Corporations Act establishes the legal reporting obligations, and ASIC administers and enforces relevant corporate reporting requirements.

Where Does the Information Appear?

Entities subject to the regime prepare a sustainability report for the relevant reporting period as part of their annual reporting obligations. The report is lodged with ASIC in accordance with the applicable legal requirements. It is not simply a standalone marketing sustainability brochure.

AASB S1 Versus AASB S2

6. HOW Does a Company Prepare an AASB S2 Report?

A company does not prepare a useful climate disclosure by collecting a few emissions numbers at year-end. It needs a repeatable process that connects climate information with governance, business strategy, risk management and financial planning.

1. Confirm whether the entity is in scope, which reporting group applies and when its first reporting period begins.
2. Assign board oversight and define management responsibilities for climate-related matters.
3. Identify climate-related risks and opportunities across the business model and value chain.
4. Assess physical risks, such as floods, heat and storms, and transition risks, such as policy, technology, market and reputation changes.
5. Collect and document greenhouse gas data, including relevant Scope 1, Scope 2 and Scope 3 emissions information.
6. Use climate-related scenario analysis to assess climate resilience.
7. Consider current and anticipated financial effects, including impacts on costs, revenue, assets, liabilities and capital allocation where relevant.
8. Set or disclose relevant metrics and targets and explain progress.
9. Establish internal controls, evidence trails, review processes and assurance readiness.

The Emissions Piece: Scope 1, Scope 2 and Scope 3

Greenhouse gas emissions are grouped into three scopes. The categories help a company understand which emissions come directly from its own operations and which occur elsewhere in the energy system or value chain.

What Is Climate Scenario Analysis?

Climate scenario analysis explores how an organisation could be affected under different plausible climate futures. A scenario is not a prediction. It is a structured way to test assumptions and understand how different combinations of warming, policy, technology and market change could affect a business.

For example, a property company might examine how a higher-warming scenario could affect heat exposure, insurance costs and asset values, while a faster transition scenario could affect energy costs, building standards and demand for efficient properties.

What Does ‘Climate-Related Financial Effects’ Mean?

It means considering how climate-related risks and opportunities may affect the financial position, financial performance and cash flows of a business. For example, repeated flooding could increase repair costs and interrupt revenue. Investment in energy efficiency could increase capital expenditure today but reduce operating costs over time.

A Practical Readiness Checklist

• We have confirmed our reporting status and first applicable period.
• The board and management understand their oversight responsibilities.
• We have identified relevant climate risks and opportunities.
• We understand our operational boundaries and value chain.
• We have a documented process for Scope 1, Scope 2 and Scope 3 data.
• We have assessed data quality, assumptions, estimates and gaps.
• We have considered climate scenarios and business resilience.
• We can explain the potential financial effects of material climate matters.
• Our metrics, targets and progress are supported by evidence.
• We have internal review, controls and assurance preparation processes.

In One Minute: AASB Climate Reporting Explained

AASB climate reporting is Australia’s approach to making climate-related financial information more consistent and useful. AASB S2 is the central climate disclosure standard. It applies to entities captured by the mandatory reporting laws, with requirements introduced in phases. Companies explain how climate-related risks and opportunities are governed, how they affect strategy, how they are managed, and which metrics and targets are used to track them.

Key Terms to Know

AASB

Australian Accounting Standards Board; Australia’s independent accounting standard-setter.

ASRS

Australian Sustainability Reporting Standards.

AASB S1

General Requirements for Disclosure of Sustainability-related Financial Information.

AASB S2

Climate-related Disclosures.

ISSB

International Sustainability Standards Board.

IFRS S2

International climate-related disclosure standard issued by the ISSB.

Physical climate risk

Risk from acute events such as floods and storms, or chronic changes such as rising temperatures.

Transition risk

Risk arising from policy, legal, technology, market or reputation changes during the transition to a lower-emissions economy.

Climate opportunity

A potential business benefit associated with climate-related change or the transition to a lower-emissions economy.

Climate resilience

An organisation’s capacity to adjust to climate-related changes and uncertainties.

Carbon accounting

The process of measuring, calculating and reporting greenhouse gas emissions.

Value chain

The activities, resources and relationships connected to an organisation’s business model, including upstream and downstream activities.

Material information

Information whose omission, misstatement or obscuring could reasonably be expected to influence decisions by primary users of general-purpose financial reports.

Climate transition plan

An aspect of an organisation’s strategy that sets out targets, actions and resources for transitioning towards a lower-emissions economy.

Sustainability assurance

An independent assurance engagement over sustainability information under applicable assurance standards.