A trial balance is a bookkeeping worksheet in which the balances of all ledgers are compiled into debit and credit account column totals that are equal. A company prepares a trial balance periodically, usually at the end of every reporting period. The general purpose of producing a trial balance is to ensure that the entries in a company’s bookkeeping system are mathematically correct.

A trial balance is so called because it provides a test of a fundamental aspect of a set of books, but is not a full audit of them.