The American Institute of Certified Public Accountants (AICPA) is a professional organization representing certified public accountants (CPAs) in the United States. It sets ethical standards and auditing guidelines for the profession, as well as offers credentials and continuing education programs.
GAAP: Generally Accepted Accounting Principles are a collection of commonly-followed accounting rules and standards for financial reporting.
Revenue Recognition Principle: This principle dictates that revenue should be recognized when it is earned and realizable, regardless of when cash is received.
Expense Recognition Principle: Also known as the matching principle, this requires that expenses be matched with revenues in the period in which they are incurred to generate those revenues.