AASB 18 ‘Presentation and Disclosure in Financial Statements’ readiness
The new AASB 18 accounting standard is effective for periods commencing from 1 January 2027 (with earlier application permitted) introducing new key presentation requirements in the financial statements, for-profit entities preparing general purpose financial statements (Tier 1 and Tier 2 general purpose financial statements).
What is changing with AASB 18?
AASB 18 introduces significant changes to how profit and performance are presented in the financial statements. Its focus is to improve how entities communicate in their financial statements to enable investors and other financial statement users to make more informed decisions.
Preparing for AASB 18 transition may impact chart of accounts design, systems, management-defined performance measures, and how financial information is communicated to the Board, Investors and other Stakeholders. Transition will require up front planning and preparation for many businesses to understand the impacts and ensure a smooth process.
Early preparation is key.
RSM Australia’s CFO Advisory team can help organisations prepare for adoption of the new standard and advise Finance teams on how they can use AASB 18 as a catalyst for providing better insights to stakeholders and improve finance function effectiveness.
Requirements of AASB 18
AASB 18 will replace AASB 101 Presentation of Financial Statements with retrospective application required. The new standard introduces the following key requirements:
New structure for the statement of profit and loss including categories and subtotals.
All income and expenses must be classified into one of five categories including operating, investing, financing, income taxes or discontinued operations. Two new subtotals are mandated in the statement of profit and loss: “operating profit or loss” and “profit or loss before financing and income tax”. For the purpose of classifying income and expenses, entities will need to assess their main business activity, which will require judgement. The new categories are intended to provide users clearer insight into core operating results versus other activities.
Mandatory disclosure of MPMs:
If you use management-defined performance measures (MPMs, often non-GAAP metrics) in public communications, AASB 18 requires disclosing them in your financial statements. You will need to explain each MPM, why it’s used, how it’s calculated and how it provides useful information. MPMs need to be reconciled to the most comparable subtotal. This is intended to improve transparency and consistency for investors.
Greater disaggregation and clarity:
The new standard has stricter rules on how items are aggregated or labelled. Vague “other” line items are discouraged and companies must provide more detail on their composition. The aim is to enhance comparability and help stakeholders better understand your financial performance.
Key impacts of AASB 18
AASB 18 is not just a technical standard change. It has real implications for:
- How your chart of accounts is structured
- How your ERP and reporting systems are configured
- How you define and govern performance measures
- The quality and clarity of your board, investor and management reporting
- Audit readiness and documentation
Preparing early for AASB 18 transition can help simplify reporting, reduce manual effort, and improve the quality of insights for decision making.
AASB 18 applies to ‘for profit’ entities for reporting periods commencing on or after 1 January 2027 with an application date from 1 January 2028 for not for profit and public sector entities.
Organisations will need to present their comparative period balances also under the new standard as part of their transition.
This means systems, chart of accounts and reporting process changes need to be in place to capture the new requirements– so preparation should start as early as possible.
AASB 18 replaces AASB 101 and applies to all entities preparing General Purpose Financial Statements.
This includes listed companies, large private companies, and other organisations using Australian Accounting Standards.
How RSM can help with AASB 18 implementation
Our accounting advisory and financial reporting experts can help you assess the impact of adoption of AASB 18 on your financial statements, required disclosures and the changes required to your systems and processes to support the new requirements.
We can provide:
- AASB 18 impact assessment
- Chart of accounts redesign and system and reporting mapping
- MPMs or non-GAAP metrics documentation and governance
- Controls, governance and AASB readiness readiness review
- Implementation and project management support
- Education and stakeholder management

MEET OUR AASB 18 EXPERTS
Maria Williams
Maria is a Partner in the Sydney Audit & Assurance division providing CFO Advisory Services to clients. She has extensive expertise in finance transformation, corporate reporting, accounting advisory, project management, and audit.
Her focus is on digital controllership and close-to-report processes, including data collection, automation, reporting tools, and enhancing analytics and insights. With experience in professional services and corporate roles in ASX-listed companies, combined with her in-depth accounting knowledge, Maria is well-equipped to understand the challenges CFOs and finance functions face during transformation. Learn more >>
Deepak Keshavamurthy
Deepak is a Partner in the Melbourne Audit & Assurance division providing technical accounting and financial reporting advisory services, with a focus on supporting clients through complex standards including AASB 18 and broader financial reporting requirements.
He has extensive expertise in audit, assurance and regulatory technical advice, helping organisations improve the quality and clarity of their financial statements, and is passionate about helping clients navigate technical complexity. Learn more >>

