General Ledger
QUICK ANSWER
A general ledger is the master record of all financial transactions of a business, organized by account. It serves as the central repository of a company's financial data and is the foundation from which all financial statements are prepared. Every debit and credit entry from every transaction ultimately flows into the general ledger.
In depth
The general ledger contains individual accounts for every category in the chart of accounts, including assets, liabilities, equity, revenues, and expenses. Each account within the ledger maintains a running balance, updated with every new transaction recorded in the system. At the end of each accounting period, the balances in the general ledger are used to prepare a trial balance, which is then used to generate the income statement, balance sheet, and cash flow statement.
In modern accounting software, the general ledger is maintained automatically as transactions are recorded, making it far less labor-intensive than the manual ledger books of the past. However, its importance has not diminished. The general ledger remains the authoritative source of financial truth within a business and is the first place accountants and auditors look when investigating discrepancies or verifying the accuracy of financial reports. Keeping the general ledger clean, well-organized, and consistently maintained is one of the most important habits a finance team can build, as errors or gaps in the ledger compound over time and can make financial reporting and audits significantly more complex and time-consuming.