A general ledger is a complete, organized record of every financial transaction your business has ever made — sorted by account type (sales, purchases, salaries, loans, etc.) so you can find any entry instantly.
Think of your general ledger as a well-organized filing cabinet. Each drawer is a different account (Sales, Rent, Salaries, Bank Loan). Every time money comes in or goes out, a slip goes into the right drawer. At the end of the year, you open the drawers and get a perfect picture of your finances.
In accounting terms, the general ledger is called the "book of final entry" — because it's where all transactions land after being first written in the journal (the "book of original entry").
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