Understanding International Accounting Standards (IAS)

International Accounting Standards (IAS)

Investopedia / Laura Porter

What Are International Accounting Standards (IAS)?

International Accounting Standards (IAS) are a set of rules for financial statements that were replaced in 2001 by International Financial Reporting Standards (IFRS) and have subsequently been adopted by most major financial markets around the world. Both sets of standards were issued by the International Accounting Standards Board (IASB), an independent body based in London.

The United States does not follow IFRS. Instead, the U.S. Securities & Exchange Commission requires public companies in the U.S. to follow Generally Accepted Accounting Standards (GAAP). China and Japan also declined to adopt IFRS.

Key Takeaways

  • International Accounting Standards were replaced in 2001 by the International Financial Reporting Standards (IFRS)
  • Currently, the United States, Japan, and China are the only major capital markets without an IFRS mandate
  • The U.S. accounting standards body has been collaborating with the Financial Accounting Standards Board since 2002 to improve and converge American accounting principles (GAAP) and IFRS.

Understanding International Accounting Standards (IAS)

International Accounting Standards (IAS) were the first international accounting standards that were issued by the International Accounting Standards Committee (IASC), formed in 1973. The goal then, as it remains today, was to make it easier to compare businesses around the world, increase transparency and trust in financial reporting, and foster global trade and investment.

Globally comparable accounting standards promote transparency, accountability, and efficiency in financial markets around the world. This enables investors and other market participants to make informed economic decisions about investment opportunities and risks and improves capital allocation. Universal standards also significantly reduce reporting and regulatory costs, especially for companies with international operations and subsidiaries in multiple countries.

Moving Toward New Global Accounting Standards

There has been significant progress towards developing a single set of high-quality global accounting standards since the IASC was replaced by the IASB. IFRS have been adopted by the European Union, leaving the United States, Japan (where voluntary adoption is allowed), and China (which says it is working towards IFRS) as the only major capital markets without an IFRS mandate.

As of 2022, 144 jurisdictions required the use of IFRS for all or most publicly listed companies, and a further 12 jurisdictions permit its use.

Globally comparable accounting standards promote transparency, accountability, and efficiency in financial markets around the world.

The United States is exploring adopting international accounting standards. Since 2002, America's accounting-standards body, the Financial Accounting Standards Board (FASB) and the IASB have collaborated on a project to improve and converge the U.S. generally accepted accounting principles (GAAP) and IFRS. However, while the FASB and IASB have issued norms together, the convergence process is taking much longer than was expected—in part because of the complexity of implementing the Dodd-Frank Wall Street Reform and Consumer Protection Act.

The Securities and Exchange Commission (SEC), which regulates U.S. securities markets, has long supported high-quality global accounting standards in principle and continues to do so. In the meantime, because U.S. investors and companies routinely invest trillions of dollars abroad, fully understanding the similarities and differences between U.S. GAAP and IFRS is crucial. One conceptual difference: IFRS is thought to be a more principles-based accounting system, while GAAP is more rules-based.

Article Sources
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  1. International Accounting Standards Board (IASB). "About the IASB."

  2. IFRS Foundation. "United States."

  3. IFRS Foundation. "Japan."

  4. IFRS Foundation. "China."

  5. International Accounting Standards Plus. "GAAP Convergence 2002," Page 4.

  6. International Accounting Standards Plus. "About the International Accounting Standards Committee (IASC)."

  7. IFRS Foundation. "Who Uses the IFRS Standards?"

  8. Board of Governors of the Federal Reserve System. "Dodd-Frank Act Stress Test 2020: Supervisory Stress Test Results."