General ledger

The general ledger (GL) is the master record of every transaction a business has posted, organized by account. Where the chart of accounts is the list of accounts, the general ledger is what actually went into each one — every debit and credit, dated and described.

Every financial statement — the profit and loss, the balance sheet — is produced from the general ledger by summarizing its accounts. It is, in the literal sense, the books.

When a number on a report looks wrong, the answer is always in the general ledger: you drill from the summary figure into the individual transactions behind it. A clean, well-categorized GL makes that a two-minute lookup; a messy one makes every question an investigation.

This is why cleanup work is ultimately ledger work — correcting the entries so the summaries above them become trustworthy — and why a reliable monthly close depends on a ledger that ties out.