What Is GAAP? Does It Matter for a Small Business Sale?

A set of ten accounting principles, set by the Financial Accounting Standards Board (FASB), that govern clear, consistent, comparable financial reporting. Publicly traded U.S. companies are required to follow GAAP by the SEC; private businesses aren't required to, but many still do.

Why it matters: Most Main Street businesses don't follow GAAP, and that's normal — it doesn't mean the books are bad, just that they weren't built to a standard designed for public companies and institutional investors. What matters practically is knowing that GAAP only permits the accrual accounting method, so if a seller's financials claim GAAP compliance, a buyer should expect accrual accounting and the consistency that comes with it. For businesses that aren't GAAP-compliant (the vast majority of $1-10M deals), the real question isn't "does this follow GAAP" but "are the numbers internally consistent and well-documented enough for a lender and a buyer's accountant to trust them."

Example: A buyer's lender asks whether the seller's financials are GAAP-compliant. For a $2M landscaping business run on QuickBooks with a bookkeeper rather than a controller, the honest answer is generally no — and that's fine, as long as the numbers are consistent and add-backs are well documented.

The ten principles: Regularity, Consistency, Sincerity, Permanence of Methods, Non-Compensation, Prudence, Continuity, Periodicity, Full Disclosure, and Utmost Good Faith — together, they add up to reporting financials accurately, consistently, and without hiding the bad news.

Related terms: Financial Statements, Balance Sheet, Accrual Method of Accounting