Definition

Generally Accepted Accounting Principles—the rulebook for how to count money in the United States, though it somehow still permits creative interpretation.

Example Usage

We have to report under GAAP, so we can't use the accounting method our tax advisor suggested.

Origin

Formalized in the 1930s after the Great Depression

Fun Fact

GAAP is intentionally flexible, which is why two companies with identical finances can report different results

Source: FASB (Financial Accounting Standards Board)

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