International accounting standards: a guide for Australian accountants

Published Thursday 11 June 2026

Table of contents

• How IAS and IFRS standards work together
• How IFRS applies in Australia
• Key IFRS and IAS standards for accountants
• Benefits of IFRS compliance for your practice
• Common challenges with IFRS compliance
• 4 steps to support clients with IFRS
• Simplify IFRS compliance with the right tools
• FAQs on international accounting standards

Key takeaways

• Australia adopts IFRS through the AASB. The Australian Accounting Standards Board issues Australian equivalents to IFRS, with Tier 1 entities applying full IFRS and Tier 2 entities using simplified requirements.
• Mandatory climate disclosures are here. AASB S2 requires climate-related financial disclosures starting 1 January 2025 for Group 1 entities, with Group 2 and Group 3 following in 2026 and 2027.
• IFRS knowledge strengthens your advisory role. Deep understanding of international standards positions you to guide clients through cross-border transactions, foreign currency reporting, and evolving compliance requirements.
• Technology reduces the compliance burden. Tools like Xero help you automate currency conversions, streamline reporting, and focus on higher-value advisory work.

How IAS and IFRS standards work together

The International Accounting Standards Board (IASB) maintains two sets of active standards. The older International Accounting Standards (IAS) were issued before 2001, while standards issued from 2001 onwards carry the IFRS label. Both sets remain in force. Many IAS standards still govern core areas, including financial statement presentation (IAS 1) and foreign currency transactions (IAS 21).

In Australia, the AASB adopts these standards through local equivalents. The standards you apply depend on your client's entity size and filing obligations. Tier 1 entities follow full IFRS-equivalent requirements, while Tier 2 entities use simplified disclosures under AASB 1060.

Understanding how IAS and IFRS interact matters when advising clients across multiple jurisdictions. Some standards have been superseded, while others remain active alongside their IFRS counterparts. Keeping track of which standards apply to each client engagement is a practical challenge this guide helps you navigate.

How IFRS applies in Australia

Australia was among the early adopters of IFRS, transitioning in 2005. The Australian Accounting Standards Board (AASB) incorporates IFRS into the local reporting framework. It issues standards that mirror their international counterparts, with limited local modifications.

The tiered reporting framework

The AASB operates a two-tier system that determines the level of disclosure required. Tier 1 applies full IFRS-equivalent standards and covers for-profit reporting entities, including listed companies and large proprietary companies. Tier 2 follows simplified disclosure requirements under AASB 1060, reducing disclosure obligations while keeping the same recognition and measurement principles. This tier suits smaller reporting entities and not-for-profit organisations.

Mandatory climate-related disclosures

One of the most significant recent developments is AASB S2, which introduces mandatory climate-related financial disclosures in Australia. The rollout follows a phased timeline.

• Group 1: Large entities meeting specific size thresholds must report from 1 January 2025.
• Group 2: Mid-sized entities begin reporting from 1 July 2026.
• Group 3: Smaller entities in scope start from 1 July 2027.

These requirements create new advisory opportunities. Clients in Groups 2 and 3 will need guidance on preparing for their disclosure requirements well before the deadlines arrive.

Global alignment

Because most major economies now follow IFRS, Australia's adoption keeps local financial statements comparable with those prepared overseas. This matters for clients with foreign investors, cross-border operations, or plans to raise capital internationally.

Key IFRS and IAS standards for accountants

Not every standard will be relevant to every client engagement. However, certain standards come up repeatedly in practice. Here is a practical overview of the ones you are most likely to encounter.

• IAS 1 (Presentation of financial statements): Sets out the overall requirements for financial statements, including structure, content, and minimum disclosure. It is the foundation for how you present a client's financial position and performance.
• IAS 21 (The effects of changes in foreign exchange rates): Defines how to determine an entity's functional currency and how to translate foreign currency transactions. This standard is essential when advising clients with overseas operations or multi-currency revenue streams.
• IFRS 9 (Financial instruments): Covers classification, measurement, and impairment of financial assets and liabilities. It introduces the expected credit loss model, which affects how your clients recognise provisions for bad debts.
• IFRS 15 (Revenue from contracts with customers): Establishes a five-step model for recognising revenue. This standard is particularly relevant for clients with complex contracts, bundled services, or milestone-based billing.
• IFRS 16 (Leases): Requires lessees to recognise nearly all leases on the balance sheet. It significantly affects reported assets, liabilities, and key financial ratios for clients with property or equipment leases.
• AASB S2 (Climate-related financial disclosures): Australia's mandatory sustainability reporting standard. It requires entities to disclose climate-related risks, opportunities, governance, and metrics. Understanding this standard early gives you a head start in advising affected clients.

For the full list of current standards, visit the IFRS Foundation's standards directory.

Benefits of IFRS compliance for your practice

Strong IFRS knowledge does more than keep your clients compliant. It opens doors to practice growth and higher-value advisory work.

Building client trust through expertise

Clients rely on you to interpret complex standards and translate them into practical action. Confidently explaining how IFRS 16 affects a client's balance sheet or how IFRS 15 applies to their revenue builds deeper trust. That trust leads to longer client relationships and more referrals.

Unlocking global opportunities

As more jurisdictions adopt IFRS, your expertise becomes portable. Clients expanding overseas or attracting foreign investment need advisers who understand international reporting requirements. This broadens your potential client base without starting from scratch on each jurisdiction's rules.

Improving efficiency through automation

Manual compliance work is time-consuming and error-prone. Xero's practice tools help you automate tasks such as currency conversions and bank reconciliations through automatic bank feeds. This frees up time for the advisory work that adds the most value to your practice and your clients.

Common challenges with IFRS compliance

Even experienced practitioners face hurdles when managing IFRS compliance across a diverse client base. Recognising these challenges helps you plan around them.

Keeping pace with evolving standards

The IASB regularly updates and introduces new standards. AASB S2 is a recent example, but ongoing amendments to existing standards also require attention. Staying current demands dedicated time for professional development and monitoring AASB updates.

Managing cross-border complexity

Clients with operations in multiple countries may need to reconcile Australian reporting requirements with local rules in other jurisdictions. IAS 21 foreign currency translation, transfer pricing, and differing disclosure rules all add complexity.

Working within resource constraints

Smaller practices often lack the specialist resources that larger firms have. Investing in technology and structured compliance processes helps bridge that gap. Tools like Xero Hubdoc can automate document collection, reducing the manual effort involved in gathering source documents for compliance work.

4 steps to support clients with IFRS

A structured approach helps you deliver consistent, high-quality IFRS advisory services. These four steps provide a practical framework.

1. Educate clients on IFRS requirements

Many clients understand their tax obligations but have less visibility over financial reporting standards. Start by identifying which IFRS and AASB standards apply to each client based on their entity type, size, and operations. Then explain the practical implications in plain language. Focus on what changes for their business, not the technical detail of each standard.

2. Use technology to simplify compliance

Manual spreadsheets and disconnected systems create unnecessary risk. Cloud-based accounting software centralises financial data, automates currency conversions, and generates reports aligned with IFRS requirements. This reduces the chance of errors and gives you a single source of truth for each client's financial position.

3. Enhance collaboration with clients

IFRS compliance works best when it is a shared effort. Set up regular check-ins with clients to review their compliance deadlines, flag upcoming changes, and address questions early. Shared access to live financial data means both you and your client are always working from the same numbers.

4. Create a compliance roadmap

Map out key reporting dates, standard transitions, and upcoming requirements for each client. Clients in Group 2 for AASB S2, for example, need to be ready for their 1 July 2026 reporting start date. Start preparing them now. A clear roadmap reduces last-minute pressure and sets you apart as a proactive adviser.

Simplify IFRS compliance with the right tools

Staying on top of IFRS requirements across your client base takes effort, but the right technology makes it significantly more manageable. Xero gives you the tools to automate routine compliance tasks, manage foreign currency reporting, and keep client data organised in one place.

The Xero Partner Program is free to join. It gives you access to practice management tools, training resources, and tiered benefits designed to help your practice grow. Join the partner program

FAQs on international accounting standards

Here are answers to some frequently asked questions about international accounting standards.

What is the difference between IAS and IFRS?

IAS standards run from IAS 1 to IAS 41, while IFRS standards currently extend from IFRS 1 to IFRS 18. The split reflects a governance change in 2001, when the IASB replaced the original IASC. Both sets remain in force and work together as part of the same reporting framework.

Does Australia follow IFRS?

Yes. The AASB issues Australian equivalents to each international standard. Listed companies and large proprietary entities fall under Tier 1 (full IFRS). Smaller reporting entities and not-for-profits typically fall under Tier 2, which uses simplified disclosures but applies the same recognition and measurement principles.

What is IAS 21?

IAS 21 covers foreign currency transactions and the translation of overseas operations' financial statements. It distinguishes between an entity's functional currency (where it primarily generates cash) and its presentation currency (what appears in published reports). Exchange rate differences between the transaction date and the reporting date are recognised as gains or losses.

How many IFRS standards are there?

There are currently 18 IFRS standards (IFRS 1 through IFRS 18) and 26 active IAS standards. Together, they cover financial reporting topics from revenue recognition and leases through to insurance contracts and hyperinflationary economies. The IASB continues to update and occasionally replace standards as business practices evolve.

What are the new IFRS sustainability standards?

The ISSB issued IFRS S1 (General requirements for sustainability-related disclosures) and IFRS S2 (Climate-related disclosures) in June 2023. In Australia, the AASB has adopted these through AASB S1 and AASB S2. IFRS S1 covers broad sustainability-related risks and opportunities beyond climate, while IFRS S2 focuses specifically on climate-related disclosures. Together, they require entities to report on governance, strategy, risk management, and performance metrics across sustainability themes.