What is the difference between IAS 18 and IFRS 15?

Asked by: Prof. Flossie Upton  |  Last update: August 12, 2026
Score: 5/5 (53 votes)

IFRS 15 (effective 2018) replaced IAS 18 to provide a unified, 5-step, principles-based model for revenue recognition based on "transfer of control" rather than "risks and rewards." It introduces more detailed guidance on contract costs, variable consideration, and licensing, leading to more complex, explicit disclosures and potential changes in the timing of revenue, especially for multi-element contracts.

What is the difference between IFRS 15 and IAS 18?

- Scope of IFRS 15: Unlike IAS 18, which had separate guidance for different types of transactions (goods, services, interest, royalties, and dividends), IFRS 15 provides a single, comprehensive revenue recognition model for all contracts with customers, except for leases, financial instruments, and insurance contracts ...

What is the main difference between IFRS and IAS?

The primary difference between IAS and IFRS is the shift from a more prescriptive, rules-based type (IAS) to a more flexible, principles-based type (IFRS).

Is IAS 18 still effective?

It responds to longstanding stakeholder concerns regarding the lack of detailed guidance in IFRS on the classification of income and expenses in the statement of profit or loss. The IFRS 18 standard is effective for annual reporting periods beginning on or after 1 January 2027, with retrospective application required.

Which IAS did IFRS 15 replace?

IFRS 15 replaces IAS 11, IAS 18, IFRIC 13, IFRIC 15, IFRIC 18 and SIC‑31. IFRS 15 provides a comprehensive framework for recognising revenue from contracts with customers.

The fundamentals of IFRS 15

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What is IFRS 15 in simple terms?

International Financial Reporting Standard (IFRS) 15: Revenue from Contracts with Customers was introduced by the International Accounting Standards Board to provide one comprehensive revenue recognition model for all contracts with customers to improve comparability within industries, across industries, and across ...

Will IAS 1 fall away and be replaced by IFRS 18?

IFRS 18 replaces IAS 1 and becomes effective for annual reporting periods beginning on or after 1 January 2027, subject to endorsement by the EU, with earlier application permitted.

What is the IFRS 18 in a nutshell?

IFRS 18 requires entities to classify income and expenses into five categories, three of which are new – i.e. operating, investing and financing – and the income tax and discontinued operation categories. The new standard sets out detailed requirements for classifying income and expenses into each category.

Why was IAS replaced by IFRS?

IFRS 9 replaced IAS 39 in January 2018 because it was too complex, inconsistent, and impractical in a modern financial world. Accountants, regulators, and financial institutions often call IAS 39 one of the most confusing standards ever written.

What is IFRS 18 replacing?

Summary. IFRS 18 replaces IAS 1 Presentation of Financial Statements as the primary source of requirements in IFRS accounting standards for financial statement presentation which will provide better information to users.

What are the 4 pillars of IFRS?

The four pillars of IFRS S1 and S2 are governance, strategy, risk management and metrics and targets.

Why doesn't America use IFRS?

Declaring (and rightfully so) that their main goal is to protect US investors' interests, the SEC notes that IFRS lacks consistent application, allows too much leeway with judgment, and is underdeveloped in many specific areas, for which the US GAAP has detailed and accepted guidance and established practice ( ...

Is IAS GAAP or IFRS?

While IAS/IFRS represents a "common language" for the European community, U.S. GAAP is, on the other hand, the set of principles that listed companies in the United States must adhere to when preparing financial statements.

What is the major difference between IAS and IFRS?

IAS covers only specific accounting issues, while IFRS is a more comprehensive set of accounting standards that covers all aspects of financial reporting. IAS and IFRS are sets of accounting standards that provide guidelines for financial reporting.

What does IFRS 15 not apply to?

IFRS 15 does not apply to wholly unperformed contracts where all parties have the enforceable right to end the contract without penalty. These contracts do not affect an entity's financial position until either party performs under the contract.

What are the 4 criteria for recognizing revenue?

In this instance, revenue is recognized when all four of the traditional revenue recognition criteria are met: (1) the price can be determined, (2) collection is probable, (3) there is persuasive evidence of an arrangement, and (4) delivery has occurred.

Did IFRS 15 replace IAS 18?

IFRS 15 replaces both IAS 11 and IAS 18 as well as SIC 31, IFRIC 13, IFRIC 15 and IFRIC 18 and establishes a single, comprehensive framework for revenue recognition.

What are the four principles of IFRS?

Although IFRS consists of a wide range of standards but its key four primary principles we will summarize below.

  • Relevance. Relevance shows that the data provided in financial statements must be competent enough to assist businesses take smart and better decisions. ...
  • Faithful Representation. ...
  • Comparability. ...
  • Understandability.

Who issues IAS and IFRS?

The International Accounting Standards Board (IASB) is an independent, private-sector body that develops and approves International Financial Reporting Standards (IFRSs). The IASB operates under the oversight of the IFRS Foundation.

What is the difference between IFRS 15 and IFRS 18?

The key difference between IFRS15 and IAS18 is that IFRS15 provides a standardized five-step model to recognize all types of revenue earned from customer contracts, while IAS18 considers different recognition criteria for different types of incomes received.

How is IFRS 18 different from US GAAP?

IFRS will require expenses to be classified into categories such as operating, investing, and financing while US GAAP will not impose such classifications. Both require disclosure of natural expenses in the footnotes (if not on the face of the financial statements).

What are the 5 accounting policies?

5 accounting policies are, Revenue Recognition, determines when income should be recorded; Asset valuation, specifies how to value assets; Expense recognition, outlines how expenses should be recorded; Depreciation methods, allocates the cost of an asset over its useful life; and Inventory valuation, includes FIFO and ...

What are the 3 main financial statements?

The three main financial statements are the Income Statement (profitability over time), the Balance Sheet (assets, liabilities, equity at a point in time), and the Cash Flow Statement (cash movement from operations, investing, and financing activities), which together provide a comprehensive view of a company's financial health and performance. 

Is IFRS 18 still applicable?

IFRS 18 and the consequential amendments to other IFRS accounting standards, which must be adopted at the same time, are effective for periods beginning on or after 1 January 2027 and apply fully retrospectively.

What are the key points of IFRS 18?

Main Requirements in IFRS 18

requires presentation of two new defined subtotals in the income statement—operating profit and profit before financing and income taxes—which are expected to improve comparability among companies by creating a consistent structure for the income statement.