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The Daily Insight Hub

Do all US companies have to follow GAAP?

Author

Isabella Turner

Updated on January 02, 2026

Not all businesses are required to follow GAAP. The U.S. Securities and Exchange Commission (SEC) requires publicly traded companies to follow GAAP in addition to other SEC rules. If you are preparing financial statements to secure outside funding, you must follow generally accepted accounting principles.

Is US GAAP mandatory?

The use of GAAP is not mandatory for all businesses, but SEC requires publicly traded and regulated companies to follow GAAP for the purpose of financial reporting.

Who must use US GAAP?

U.S. law requires businesses that release financial statements to the public and companies that are publicly traded on stock exchanges and indices to follow GAAP guidelines, which incorporate 10 key concepts: Principle of Regularity: GAAP-compliant accountants strictly adhere to established rules and regulations.

What happens if a company doesn’t follow GAAP?

If your financial professional failed to follow the guidelines and standards set forth under GAAS and GAAP, negligent conduct may have occurred. You must show you suffered financial loss, and. You must prove the financial professional’s breach of duty or responsibility was the cause of your financial losses.

Why is GAAP necessary?

The purpose of GAAP is to ensure that financial statements of U.S businesses (and perhaps worldwide one day) are consistent and comparable.

Is going against GAAP illegal?

GAAP is not law, though violating GAAP can have costly ramifications. The SEC has issued many steep fines for GAAP violations, including several famous recent cases, like those of Hertz and Monsanto.

Will IFRS replace US GAAP?

It is unlikely that US GAAP will become a “single set” in the future, given that the majority of countries around the globe have already adopted IFRS as their reporting framework for public interest entities (such as listed companies, banks, insurance companies, etc.).

Is GAAP legally binding by IRS?

The assessment will begin when you hit “Continue.”Generally Accepted Accounting Principles (GAAP) are a) commonly agreed-upon professional accounting standards in the United States b) legally binding rules created by the Internal Revenue Service c) standards required only for large companies with over $100M in revenue.

Does the United States use IFRS?

Although full adoption of IFRS in the United States continues to face long odds, understanding IFRS remains important for U.S. investors and companies, SEC Chief Accountant Wes Bricker said Monday.

Why the US should switch to IFRS?

Switching to IFRS will help companies, investors, and the public globally compare their financial statements more easily. “By adopting IFRS, a business can present its financial statements on the same basis as its foreign competitors, making comparisons easier” (American Institute of Certified Public Accountants).