What is the difference between IFRS 15 and US GAAP?

Asked by: Prof. Cali Turcotte V  |  Last update: October 9, 2026
Score: 4.8/5 (65 votes)

While IFRS 15 and US GAAP (ASC 606) share a core five-step, principles-based model for revenue recognition, key differences exist regarding variable consideration, contract costs, and shipping, often causing US GAAP to be more restrictive and detailed compared to the more flexible IFRS approach. Key differences include:

What is the key difference between IFRS and US GAAP?

GAAP: Only allows the revaluation of fair market value for marketable securities (i.e., investments and stocks). IFRS: Allows for the revaluation of more assets, including plant, property, and equipment (PPE), intangible assets like goodwill in accounting, and investments in marketable securities.

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 ...

When comparing US GAAP accounting to IFRS accounting?

A prime difference between GAAP and IFRS is in how they account for inventory expenses. If you're using GAAP, you can choose either the LIFO (Last-In, First-Out) or FIFO (First-In, First-Out) method for calculating inventory. Whereas IFRS only allows the use of the FIFO method, the LIFO method is strictly prohibited.

What is the major difference between US GAAP and IFRS affecting the lease accounting practice?

IFRS has a de minimus exception, which allows lessees to exclude leases for low-valued assets, while GAAP has no such exception. The IFRS standard includes leases for some kinds of intangible assets, while GAAP categorically excludes leases of all intangible assets from the scope of the lease accounting standard.

Revenue Recognition (IFRS vs US GAAP) | IFRS 15 vs ASC 606

45 related questions found

What are the 4 pillars of IFRS?

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

Is US GAAP or IFRS more strict?

IFRS offers broader international adoption and flexibility, while US GAAP provides strict, detailed rules—useful in highly regulated environments.

What are the disadvantages of using IFRS?

Incompatibility with Local Tax Regulations

One of the major drawbacks of IFRS adoption is its frequent misalignment with local tax laws and reporting requirements. Many countries have tax systems closely tied to national accounting standards, where taxable income is directly derived from financial statements.

Is Lifo allowed under IFRS?

LIFO in Accounting Standards

Under IFRS and ASPE, the use of the last-in, first-out method is prohibited. However, under GAAP, the use of Last-In First-Out is permitted. The inventory valuation method is prohibited under IFRS and ASPE due to potential distortions on a company's profitability and financial statements.

Is IFRS 15 difficult to understand?

IFRS 15 'Revenues from Contracts with Customers' provides comprehensive guidance on accounting for revenue recognition. Nonetheless, there are some aspects of IFRS 15 that are complex and can pose practical challenges for reporting entities to apply and implement effectively.

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 benefits of using IFRS 15?

IFRS 15 introduces a unified Five-Step Model for revenue recognition, replacing a myriad of previous guidelines and interpretations. It emphasizes performance obligations, transaction price allocation, and enhanced disclosure requirements, offering a more consistent and detailed approach to revenue recognition.

Can you use both GAAP and IFRS?

Can a company use both GAAP and IFRS? Ans: Generally, a company must choose one standard based on its jurisdiction or market. However, businesses that operate internationally may need to prepare separate financial statements according to both GAAP and IFRS for different regions.

Does US GAAP allow Lifo?

IAS 2 prohibits LIFO; US GAAP allows its use.

While the majority of US GAAP companies choose FIFO or weighted average for measuring their inventory, some use LIFO for tax reasons.

Why doesn't the US 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 ( ...

Why do accountants follow IFRS?

Benefits of IFRS Accounting Standards

IFRS Accounting Standards: bring transparency by enhancing the quality of financial information, enabling investors and other market participants to make informed economic decisions; strengthen accountability by reducing the information gap between investors and companies; and.

Which countries don't use IFRS?

The U.S., China, Egypt, Bolivia, Guinea-Bissau, Macao and Niger don't allow their domestic publicly traded companies to use International Financial Reporting Standards.

What is the problem with IFRS?

Key advantages of adopting IFRS include enhanced global comparability and reduced reporting costs for multinational firms. Disadvantages include high implementation expenses, the complexity of a principles-based approach, and a lack of universal adoption (e.g., the U.S. uses GAAP).

Is it difficult to learn US GAAP?

Students may find GAAP difficult to learn at first. GAAP includes many complex principles that require deep, technical accounting knowledge. However, you can master GAAP with diligence, persistence, and hard work.

What are the 5 laws of accounting?

There are five most referenced fundamentals of accounting. They include revenue recognition principles, cost principles, matching principles, full disclosure principles, and objectivity principles. This principle states that revenue should be recognized in the accounting period that it was realizable or earned.

How do you reconcile differences between IFRS and US GAAP?

IFRS reports DTAs and deferred tax liabilities only as long term, while U.S. GAAP would distinguish short and long term. Under U.S. GAAP, if a parent/subsidiary relationship exists, then the company must prepare consolidated statements.

What is the 90% rule in leasing?

The 90% rule in leasing is an accounting guideline for classifying leases, stating that if the present value (PV) of a lessee's minimum lease payments equals or exceeds 90% of the leased asset's fair market value (FMV), the lease should be treated as a finance lease (or capital lease) rather than an operating lease, reflecting essentially a purchase for accounting purposes. This rule helps determine if the lease transfers substantially all the risks and rewards of ownership, requiring balance sheet recognition of the asset and liability. 

Does US GAAP allow operating leases?

For Operating Leases under U.S. GAAP, companies record a simple “Rental Expense” or “Lease Expense” on their Income Statements. However, they still calculate the Interest, Depreciation, and Principal Repayments and change their Operating Lease Assets and Liabilities based on those.