International Financial Reporting Standards

Publicly traded companies in most countries outside the United States use IFRS — International Financial Reporting Standards — to prepare financial statements. IFRS is issued by the IASB, an independent standards-setter, and is used by over 140 countries. It is similar in spirit to GAAP but differs in important ways: IFRS is more principle-based, with less detailed guidance, and it emphasizes the substance of transactions over their legal form.

IFRS vs. GAAP: the high-level difference

Both GAAP and IFRS aim at the same goal: comparability and verifiability of financial statements. But they approach the problem differently.

GAAP is rules-based. It specifies detailed requirements for nearly every scenario. This makes it explicit and enforces consistency, but it can be rigid. IFRS is principles-based. It sets broad principles and expects companies and auditors to apply judgment based on the spirit of the rule, not its letter.

This difference affects everything from revenue recognition to fair-value measurement to lease accounting. Two companies following the same transaction will sometimes reach different conclusions under IFRS — if both are faithful to the principles — whereas under GAAP they would use the same rule.

Key differences in practice

Revenue recognition: Both use ASC 606/IFRS 15, which are converged. The standards are nearly identical.

Inventory: GAAP permits LIFO; IFRS does not. This is a major difference. Many US companies use LIFO for tax reasons; IFRS users cannot.

Property, revaluation: GAAP generally requires historical cost; IFRS permits companies to revalue property, plant, and equipment to fair value and update them periodically. This is rarely used but is a conceptual difference.

Lease accounting: Both GAAP and IFRS (via ASC 842 and IFRS 16) have converged toward a principle that recognizes most leases on the balance sheet as right-of-use assets and liabilities.

Presentation: IFRS emphasizes a clear distinction between current and non-current items and distinguishes operating vs. non-operating items. GAAP is less prescriptive about presentation.

The convergence project

The IASB and FASB have worked for decades to align GAAP and IFRS. Some standards (like revenue recognition) have been fully converged. Others (like LIFO) remain distinct due to jurisdictional preferences.

Full convergence is unlikely. The US has deep ties to GAAP and no appetite to abandon decades of case law and practice. Europe and the rest of the world are committed to IFRS. Instead, the focus is on convergence where possible and mutual recognition where not.

Who uses IFRS?

IFRS is mandatory or permitted for publicly traded companies in nearly every country except the US. The EU, UK, Australia, Canada, Japan, and others all use IFRS. Some countries permit or encourage private companies to use IFRS; most allow them to use local standards or IFRS.

If you read financial statements from any large European, Asian, or international company (except US listings), they are almost certainly in IFRS.

IFRS enforcement and auditing

The IASB does not enforce IFRS. Enforcement is the job of national regulators — the European Commission, the UK FCA, Australia’s ASIC, and so on. Each country has its own enforcement regime, which means the quality and consistency of IFRS application can vary.

This is one advantage of GAAP: the SEC and US regulators enforce a consistent standard. It is also one limitation of IFRS: a company in one country might take liberties that a regulator in another country would not permit.

Convergence for comparability

A multinational company might use IFRS for most of the world and GAAP for US reporting. Or it might maintain one set of books in IFRS and then bridge to GAAP for a US SEC filing. Investors comparing across countries must be aware that subtle differences can persist despite convergence efforts.

For this reason, analysts often restate financial statements from one standard to the other, or they normalize key metrics (like eliminating the LIFO advantage) before comparing. Perfect comparability across standards is not yet achievable.

See also