Mandatory climate reporting is transforming the way Australian businesses identify, assess and disclose climate-related risks. With Australia’s climate disclosure regime aligned with international sustainability standards, organisations need to strengthen governance, improve emissions data and ensure climate-related financial disclosures are supported by robust processes.
These requirements extend beyond sustainability reporting. Climate-related financial disclosures are becoming part of the broader reporting framework and are increasingly subject to regulatory scrutiny, investor expectations and future assurance requirements.
Businesses that prepare early will be better positioned to manage risk, strengthen resilience and build stakeholder confidence.
Understanding Australia’s Mandatory Climate Reporting Framework
Climate-related financial disclosures under AASB S2
Australia’s climate disclosure regime is based on international standards developed by the International Sustainability Standards Board (ISSB). AASB S2 Climate-related Disclosures is aligned with IFRS S2 and builds upon the principles established by the Task Force on Climate-related Financial Disclosures (TCFD).
Under AASB S2, organisations may need to disclose:
- Material climate-related risks and opportunities.
- Scope 1, Scope 2 and, where required, Scope 3 greenhouse gas emissions.
- Climate-related financial impacts.
- Transition plans and climate targets.
- Climate governance and risk management processes.
- Scenario analysis and resilience assessments.
These disclosures are designed to provide investors and stakeholders with consistent, comparable and decision-useful information.
Voluntary sustainability reporting frameworks
Many organisations also use frameworks such as the Global Reporting Initiative (GRI) to support broader sustainability reporting. Businesses already reporting under GRI should ensure their sustainability disclosures remain aligned with climate-related financial disclosures to avoid inconsistencies across reports and communications.
5 Steps to Prepare for Climate Reporting Compliance
1. Conduct a Climate Reporting Gap Analysis
Businesses should begin by assessing current reporting practices against AASB requirements and existing sustainability frameworks.
This includes:
- Reviewing current climate risk assessments and disclosures.
- Identifying gaps in financial and non-financial reporting.
- Assessing data availability and quality.
- Planning for Scope 3 emissions reporting, which can take considerable time across complex supply chains.
2. Strengthen Climate Governance and Board Capability
Boards and executives play a critical role in overseeing climate-related risks and disclosures. Strong governance supports better decision-making and helps organisations respond to increasing regulatory scrutiny.
Key actions include:
- Establishing governance structures and accountability frameworks.
- Providing board and executive training on climate-related financial disclosures.
- Integrating climate risks into enterprise risk management.
- Aligning climate reporting with broader business strategy.
3. Build an Integrated Climate Reporting Team
Climate reporting should not sit solely within sustainability teams. Effective reporting requires collaboration across finance, risk, operations, legal and sustainability functions.
A coordinated approach helps ensure:
- Consistency between financial reporting and climate disclosures.
- Reliable and verifiable sustainability data.
- Clear ownership and accountability.
- Preparation for external assurance requirements.
4. Strengthen Climate Data Collection and Management
Reliable climate reporting depends on reliable data. Businesses should invest in systems and processes that support accurate emissions calculations and climate-related analysis.
Key priorities include:
- Implementing systems to track emissions and climate metrics.
- Working with suppliers and value chain partners to collect Scope 3 emissions data.
- Documenting methodologies and assumptions.
- Establishing internal review and verification processes.
- Preparing for future assurance requirements.
For complex organisations, Scope 3 emissions reporting can take months to complete, making early preparation essential.
5. Treat Climate Reporting as an Ongoing Process
Climate reporting should be viewed as a continuous improvement process rather than a one-off compliance exercise.
Businesses should:
- Regularly review climate risks and opportunities.
- Use scenario analysis to support long-term planning.
- Invest in technology and reporting capability.
- Strengthen sustainability governance over time.
- Improve disclosure quality through lessons learned and assurance feedback.
Who Needs to Report Under Australia’s Climate Disclosure Regime?
Australia is implementing mandatory climate reporting through a phased approach. Reporting requirements initially apply to larger entities, with additional organisations entering the regime over time.
Businesses likely to be affected include:
- Large listed and private companies.
- Financial institutions.
- Entities reporting under the National Greenhouse and Energy Reporting (NGER) framework.
- Businesses supplying larger organisations that require emissions and sustainability information.
Even businesses not directly captured by mandatory reporting may experience increasing pressure from customers, investors and supply chains to provide climate-related information.
Why Early Preparation Matters
Climate reporting is increasingly being treated as part of the broader financial reporting framework. Organisations with mature governance structures, reliable data and clear accountability are better positioned to respond to regulatory expectations and future assurance requirements.
Businesses that delay preparation may face higher compliance costs and greater challenges when collecting emissions data, particularly Scope 3 information.
What Mandatory Climate Reporting Means for Australian Businesses
Mandatory climate reporting represents a significant shift in corporate reporting. Organisations that treat climate disclosures as a strategic capability rather than a compliance burden will be better positioned to strengthen resilience, manage risk and maintain stakeholder trust.
Naturaliste Solutions provides support with climate risk management, sustainability reporting and disclosure readiness.
For more insights, explore our latest sustainability articles on our Insights page or get in touch for climate reporting support.
