The Australian Accounting Standards Board (AASB) is the independent Australian government agency that develops and maintains the accounting standards used across Australia. Every company that prepares financial reports under the Corporations Act 2001 — as well as public-sector and not-for-profit entities — must follow AASB standards.

1. Legal force. AASB standards are not mere guidelines — they are legislative instruments. Non-compliance can breach the Corporations Act.

2. One set of standards for everyone. Unlike some countries, Australia applies the same standards (with adjustments) to listed companies, private companies, governments and charities — this is called the "transaction-neutral" approach.

3. IFRS-based. Since 2005, AASB standards have been based on IFRS. If you know IFRS, you already know most of AASB.

The AASB was established under the Australian Securities and Investments Commission Act 2001 (ASIC Act). It reports to the Australian Government (Treasury portfolio), while ASIC — Australia's corporate regulator — enforces compliance with the standards the AASB issues. Audits of those financial statements follow standards set by a sister body, the AUASB (Auditing and Assurance Standards Board).

Australia adopted IFRS from 1 January 2005. Each time the IASB issues a new IFRS, the AASB reviews it and issues an Australian equivalent — usually word-for-word identical, with occasional "Aus" paragraphs added for local matters (mainly for not-for-profit and public-sector entities). A for-profit entity complying with Tier 1 AASB standards can simultaneously state compliance with IFRS.

The standard's number tells you where it came from. This is the single most useful trick for navigating AASB standards:

For for-profit entities the differences are minimal. The main additions are: "Aus" paragraphs for NFP/public-sector application, Australian-specific standards such as AASB 1054 (Australian Additional Disclosures), and the Tier 1 / Tier 2 differential reporting framework (AASB 1053), which has no direct IFRS equivalent. The AASB is also an active voice internationally — it is one of only 12 members of the IASB's Accounting Standards Advisory Forum.

Not every entity has to produce the full, heavyweight set of disclosures. AASB 1053 establishes two tiers of general purpose financial statements (GPFS). Both tiers apply exactly the same recognition and measurement rules — the difference is only in how much you must disclose.

Historically many Australian private companies self-assessed as "non-reporting entities" and prepared minimal special purpose financial statements (SPFS). From financial years beginning 1 July 2021, this option was removed for most for-profit private-sector entities lodging with ASIC — they must now prepare GPFS, at least at Tier 2 using AASB 1060 (which replaced the older "RDR" reduced disclosure regime).

There are around 40 active AASB standards, but day-to-day work revolves around a much smaller core. Start with these — especially the "big three" issued in the late 2010s: AASB 9, AASB 15 and AASB 16.

Because revenue touches every business, AASB 15's five-step model is worth memorising: ① identify the contract → ② identify the performance obligations → ③ determine the transaction price → ④ allocate the price to the obligations → ⑤ recognise revenue when (or as) each obligation is satisfied.

In September 2024 the AASB issued Australia's first sustainability reporting standards, based on the ISSB's IFRS S1/S2: AASB S1 (general sustainability disclosures, voluntary) and AASB S2 (climate-related disclosures, mandatory). From 1 January 2025, large entities must prepare a "Sustainability Report" disclosing climate-related risks, opportunities, and Scope 1–3 greenhouse gas emissions.

Assurance is also phased: limited assurance over Scope 1 and 2 emissions applies from the start, moving toward reasonable assurance over all climate disclosures for financial years beginning on or after 1 July 2030.

For an accountant trained in Japan, the biggest mental shift is that Australia has fully adopted IFRS, whereas Japan runs multiple frameworks in parallel (J-GAAP, "designated" IFRS, JMIS, US GAAP). Below are the differences you will feel most in practice.

Australian practice is principles-based: standards state objectives and principles, and accountants are expected to exercise professional judgement and document it. Financial years commonly end 30 June (the Australian tax year), not 31 March. And note the vocabulary: "financial report", "director's declaration", "true and fair view" and "lodgement with ASIC" will appear constantly.