General Ledger
A general ledger (GL) is the master accounting record that contains all financial transactions of a business, organized by account. It serves as the single source of truth for financial reporting, using double-entry bookkeeping where every transaction has equal debit and credit entries. In fintech infrastructure, operational ledgers extend the GL concept with real-time event processing, immutability, and API-first architectures designed for high-volume transaction environments.
Key Details
- Organizes transactions into accounts following the chart of accounts structure (assets, liabilities, equity, revenue, expenses)
- Double-entry bookkeeping ensures the accounting equation (Assets = Liabilities + Equity) always balances
- Subledgers (AR, AP, inventory) feed detailed transactions into summary GL accounts
- GL reconciliation compares subledger totals against GL balances to catch posting errors
- Modern fintech ledgers add real-time balance tracking, event sourcing, and multi-currency support
- Journal entries record transactions in the GL with date, accounts, amounts, and descriptions
- The GL is the foundation for all financial statements: balance sheet, income statement, and cash flow statement