Plain definition
A chart of accounts is the organised list of account codes and names used to classify transactions in the general ledger. It groups accounts into categories such as assets, liabilities, equity, revenue, and expenses. A useful chart is detailed enough to explain decisions but not so fragmented that reporting becomes unreliable.
The chart is a design choice that determines which questions the accounts can answer. A separate delivery-cost account can reveal whether pricing covers fulfilment; combining it with general administration cannot. Too many codes, however, invite inconsistent posting and reports no one can read.
Illustrative example
Monetary examples use Saudi riyals (SAR). The same principles apply in other currencies.
Suppose delivery costs are important to pricing. The company uses a distinct delivery-cost account instead of combining those costs with all administration.
When the delivery account rises from to while orders are flat, management can ask whether fuel, failed deliveries, or route design changed before changing prices.
Why it matters
The chart determines what the business can see and compare consistently across periods.
Practical consequence
Before adding an account, define the decision it will support, its normal balance, examples of allowed transactions, and its report mapping. Retire unused codes and review new accounts centrally so similar costs are not scattered across names.