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A Complete List of International Accounting Standards: IAS vs IFRS vs GAAP

For businesses entering the Japanese market, understanding International Accounting Standards (IAS) is key to navigating financial reporting. IAS helps ensure consistency in global financial communication. Here’s a quick look at how these standards came about and why they matter in Japan.

As businesses expanded globally, inconsistent accounting standards made financial comparisons difficult. A unified global standard was needed to simplify financial reporting across borders.

In 1973, the International Accounting Standards Committee (IASC) was created to develop global accounting standards. These standards aimed to improve transparency and comparability in financial reports.

As business needs grew, so did the demand for more robust standards. In 2001, the International Accounting Standards Board (IASB) took over and developed the International Financial Reporting Standards (IFRS), which replaced IAS and became the global benchmark.


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Why IAS Still Matters

Even though IFRS is now the global standard, IAS remains relevant in Japan for a few reasons:

  • Historical Data: Many Japanese companies have financial records based on IAS.
  • Industry Practices: Some sectors in Japan still follow IAS principles.
  • Global Comparability: Understanding IAS helps in comparing Japanese companies with global counterparts.

Knowing the basics of IAS helps businesses interpret financial data, assess risks, and make informed decisions in Japan.

International Accounting Standards (IAS) List

International Accounting Standards (IAS) provide essential guidelines for preparing and presenting financial statements, offering a common framework that ensures consistency and comparability. While many countries, including Japan, have adopted International Financial Reporting Standards (IFRS), understanding IAS remains important for businesses operating globally. 

Here are some of the most important IAS you should know:

  • IAS 1: Presentation of Financial Statements

Establishes the overall requirements for financial statements, including their structure, content, and presentation.

  • IAS 2: Inventories

Provides guidelines on the valuation and recognition of inventories, including costing methods such as FIFO and weighted average.

  • IAS 7: Statement of Cash Flows

Requires the presentation of cash flow information, detailing cash movements from operating, investing, and financing activities.

  • IAS 8: Accounting Policies, Changes in Accounting Estimates and Errors

Prescribes the criteria for selecting and changing accounting policies and how to account for changes and corrections of errors.

  • IAS 10: Events after the Reporting Period

Defines the accounting treatment of events that occur after the reporting date but before the financial statements are authorized for issue.

  • IAS 12: Income Taxes

Sets out the accounting treatment for current and deferred tax, including tax implications of transactions and events.

  • IAS 16: Property, Plant, and Equipment

Specifies the accounting treatment for PPE, including recognition, measurement, depreciation, and disposal.

  • IAS 19: Employee Benefits

Prescribes the accounting treatment and disclosures for employee benefits, including pensions and other post-employment benefits.

  • IAS 20: Accounting for Government Grants and Disclosure of Government Assistance

Provides guidelines on the recognition and presentation of government grants and the disclosure of government assistance.

  • IAS 21: The Effects of Changes in Foreign Exchange Rates

Addresses the accounting for transactions in foreign currencies and the translation of financial statements of foreign operations.

  • IAS 23: Borrowing Costs

Specifies the accounting treatment for borrowing costs, including the capitalization of borrowing costs directly attributable to the acquisition, construction, or production of qualifying assets.

  • IAS 24: Related Party Disclosures

Requires the disclosure of relationships, transactions, and balances with related parties.

  • IAS 26: Accounting and Reporting by Retirement Benefit Plans

Provides guidelines for the accounting and reporting of retirement benefit plans.

  • IAS 27: Separate Financial Statements

Specifies the accounting and disclosure requirements for investments in subsidiaries, joint ventures, and associates when an entity prepares separate financial statements.

  • IAS 28: Investments in Associates and Joint Ventures

Prescribes the accounting treatment for investments in associates and joint ventures, including the equity method.

  • IAS 29: Financial Reporting in Hyperinflationary Economies

Provides guidelines for financial reporting in economies experiencing hyperinflation.

  • IAS 32: Financial Instruments: Presentation

Specifies the presentation of financial instruments, particularly the classification of financial instruments between liabilities and equity.

  • IAS 33: Earnings per Share

Prescribes the principles for the determination and presentation of earnings per share (EPS).

  • IAS 34: Interim Financial Reporting

Provides guidelines for the preparation and presentation of interim financial reports.

  • IAS 36: Impairment of Assets

Establishes procedures for assessing and recognizing impairment of assets.

  • IAS 37: Provisions, Contingent Liabilities, and Contingent Assets

Provides guidance on the recognition, measurement, and disclosure of provisions, contingent liabilities, and contingent assets.

  • IAS 38: Intangible Assets

Defines the accounting treatment for intangible assets, including recognition, measurement, amortization, and impairment.

  • IAS 39: Financial Instruments: Recognition and Measurement

Sets out the principles for recognizing and measuring financial assets and liabilities, including guidelines for hedge accounting.

  • IAS 40: Investment Property

Provides guidelines on the recognition, measurement, and disclosure of investment property, including fair value measurement.

  • IAS 41: Agriculture

Specifies the accounting treatment for agricultural activity, focusing on the recognition and measurement of biological assets and agricultural produce.

The IAS Plus website provides a breakdown of each individual standard, including any changes made to the standard over the years, and details on the scope and requirements of each. 

laptop and calculator on desk with person's hands doing ifrs accounting calculations

International Financial Reporting Standards (IFRS) and Their Relevance

IFRS represents the evolution of global accounting standards, offering a comprehensive and widely accepted framework for financial reporting.

From IAS to IFRS

In 2001, the International Accounting Standards Board (IASB) was established to create a single set of high-quality global accounting standards, leading to the development of IFRS, which replaced IAS. This shift aimed to improve the comparability, transparency, and efficiency of financial reporting worldwide.

Key Differences Between IAS and IFRS

While IAS laid the groundwork, IFRS provides more detailed and specific guidance. Some key differences include:

  • Scope: IFRS covers a wider range of topics.
  • Detail: IFRS offers more specific requirements and guidance.
  • Framework: IFRS is built on a stronger conceptual foundation.

IFRS Adoption in Japan

Japan has made significant strides in aligning its domestic accounting standards with IFRS. While full adoption is ongoing, many Japanese companies have already embraced IFRS for their consolidated financial statements.

Adopting IFRS in Japan offers several benefits:

  • Enhanced Comparability: Financial statements under IFRS are easier to compare with those of global companies, aiding investment decisions.
  • Improved Investor Confidence: IFRS is known for its transparency, which can boost investor trust.
  • Global Capital Market Access: Using IFRS can improve a company’s access to international capital markets.

However, businesses should be prepared for the challenges of IFRS compliance, including the need for additional resources and expertise.

Understanding JGAAP

Japanese Generally Accepted Accounting Principles (JGAAP) are the accounting standards used by companies in Japan for their financial statements. While Japan has moved closer to International Financial Reporting Standards (IFRS) for consolidated reporting, many businesses still use JGAAP, especially for domestic purposes.

JGAAP reflects Japan’s unique business and legal environment, making it crucial for companies operating in the country to understand. Unlike IFRS, which focuses on global comparability, JGAAP is more closely tied to Japan’s local regulations and tax laws, which can influence how financial statements are prepared.

Key aspects of JGAAP include its emphasis on historical cost accounting and a conservative approach to financial reporting, which aligns with Japan’s traditionally cautious business culture

For international companies entering or expanding in Japan, it’s important to understand both JGAAP and IFRS. Depending on their needs, businesses may need to prepare financial reports under both standards to meet the expectations of local and international stakeholders.

Understanding JGAAP is essential for regulatory compliance and for effectively communicating your financial position in Japan. Balancing JGAAP with IFRS can be complex, but it ensures that your financial statements are both locally compliant and globally comparable.

woman presenting graphs from international accounting report on white presentation board

Why Understanding IAS and IFRS is Crucial for Entering the Japanese Market

Navigating Japan’s business environment requires a solid grasp of its accounting landscape. International Accounting Standards (IAS) and International Financial Reporting Standards (IFRS) are key to ensuring transparency and comparability—critical factors for any business aiming to succeed in Japan.

Japan’s Accounting Landscape

Japan’s accounting system is shaped by a unique mix of cultural, legal, and economic influences. While the country has made significant progress in adopting international standards, such as IFRS, it also maintains its own set of standards known as Japanese Generally Accepted Accounting Principles (JGAAP). Understanding both JGAAP and international standards is essential for companies looking to operate effectively in Japan.

The Role of IAS and IFRS

Adopting IAS and IFRS enhances the credibility and comparability of financial statements, fostering trust with investors, lenders, and other stakeholders. Here’s why these standards matter:

  • Improved Financial Reporting Quality: IAS and IFRS provide a strong framework for accurate and reliable financial reporting. This is crucial for sound business decisions, performance assessments, and attracting investment.
  • Enhanced Investor Confidence: Global investors often favor companies that follow international standards. Compliance with IAS and IFRS can boost investor confidence and open doors to a broader pool of capital.
  • Facilitated Cross-Border Transactions: For businesses involved in cross-border activities like mergers or joint ventures, IAS and IFRS offer a common language for financial reporting, simplifying complexities and reducing risks.

Balancing IAS, IFRS, and JGAAP in Japan

While IFRS is becoming more prevalent in Japan, many companies still adhere to JGAAP, especially for domestic reporting. Companies operating in Japan may need to prepare financial statements under both JGAAP and IFRS, depending on their specific business needs and investor requirements. Understanding how these standards interact is vital for maintaining compliance and ensuring that financial reports meet both domestic and international expectations.

Key Differences Between JGAAP and IFRS

When comparing Japanese Generally Accepted Accounting Principles (JGAAP) and International Financial Reporting Standards (IFRS), it’s important to understand the nuanced differences that can impact financial reporting. Below are some key areas where these two standards diverge:

1. Presentation of Financial Statements

  • Format and Components: Under JGAAP, financial statements include specific formats, such as the Consolidated Balance Sheet and Consolidated Statement of Comprehensive Income. IFRS, on the other hand, allows for more flexibility in the titles and formats of these statements. For example, IFRS requires a Statement of Financial Position and permits either a single statement of comprehensive income or a two-statement approach.
  • Extraordinary Items: JGAAP allows for the presentation of extraordinary gains and losses, whereas IFRS prohibits such classification. All income and expenses under IFRS are included in the standard profit or loss category without the separate “extraordinary” label.

2. Inventory Valuation

  • Cost Formulas: JGAAP permits several cost formulas, including the Last-In, First-Out (LIFO) method, which is not allowed under IFRS. IFRS favors the First-In, First-Out (FIFO) method and the weighted average cost method.
  • Revaluation: JGAAP does not allow for the revaluation of inventory once it has been written down, even if the market value recovers. IFRS, however, permits the reversal of write-downs, allowing inventory to be revalued up to the original cost if market conditions improve.

3. Revenue Recognition

  • Criteria: JGAAP has more conservative criteria for revenue recognition, often tied closely to the transfer of risks and rewards. IFRS employs a five-step model under IFRS 15, focusing on the transfer of control and the satisfaction of performance obligations.
  • Contract Modifications: IFRS provides detailed guidance on handling contract modifications, often requiring adjustments to the transaction price and the allocation of revenue to the remaining performance obligations. JGAAP generally treats modifications more simply, without the same level of detailed adjustments.

4. Impairment of Assets

  • Testing Approach: JGAAP employs a two-step impairment test where an initial comparison is made between the carrying amount and undiscounted future cash flows. If the carrying amount exceeds the cash flows, an impairment loss is recognized. IFRS uses a one-step approach, comparing the carrying amount directly to the asset’s recoverable amount (the higher of fair value less costs to sell and value in use).
  • Reversals: Reversals of impairment losses are not permitted under JGAAP. In contrast, IFRS allows reversals (except for goodwill), which must be recognized if certain conditions are met.

5. Business Combinations and Goodwill

  • Goodwill Amortization: JGAAP requires that goodwill be amortized over its useful life, not exceeding 20 years. IFRS, however, does not amortize goodwill but requires an annual impairment test instead.
  • Measurement of Non-Controlling Interests (NCI): JGAAP measures NCI at their proportionate share of the acquiree’s net assets. IFRS offers an option to measure NCI at either fair value or the proportionate share of the net assets.

6. Leases

  • Lease Classification: JGAAP classifies leases as finance or operating based on criteria such as the lease term and present value of lease payments. IFRS 16, however, requires nearly all leases to be recognized on the balance sheet, removing the distinction between finance and operating leases for lessees.
  • Measurement: JGAAP allows for a “simple method” for insignificant finance leases, treating them similarly to operating leases, while IFRS mandates detailed measurement and presentation of lease liabilities and right-of-use assets for all significant leases.

These differences highlight the complexities involved in financial reporting under JGAAP and IFRS. Companies operating in Japan or dealing with Japanese businesses must be able to navigate both sets of standards to ensure accurate and compliant financial statements. Understanding these differences can also aid in better financial analysis and decision-making, especially in a global context.

Simplify Your Japan Expansion with Clear and Compliant Accounting

Expanding into new markets like Japan requires more than just understanding local regulations—it demands expertise in international standards like IAS, IFRS and JGAAP. At weConnect, we simplify this complexity, ensuring your financial operations are smooth, compliant, and ready for global growth.

What You Get with weConnect:

  • Global Expertise: With our deep understanding of IAS and IFRS, we guide your business through the intricacies of international accounting standards, so you can confidently expand into new territories.
  • Local Insight: We combine global standards with local knowledge, helping you navigate Japan’s unique market challenges while maintaining compliance.
  • Streamlined Processes: Our solutions are designed to simplify your accounting and tax processes, ensuring efficiency and accuracy across borders.
  • Reliable Support: From day one, we’re by your side, offering the expertise and support you need to manage your international expansion with ease.

Ready to expand your business globally? Contact weConnect today and let us take the complexity out of your international accounting and tax needs.

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