What is a chart of accounts?

What a chart of accounts means

A chart of accounts is the filing system behind your bookkeeping. Every transaction is coded to one of its accounts, and every report you run, from the profit and loss to the balance sheet, is built by adding those accounts up. It is the structure of your general ledger.

Accounts are grouped into five types: assets, liabilities, equity, income and expenses. Most software gives each account a number so related accounts sit together.

Example

A small creative agency might use a structure like this (codes vary by software):

Code range	Type	Examples
200s	Income	Design fees, Retainers, Recharged expenses
300s	Direct costs	Freelance designers, Print costs
400s	Overheads	Rent, Software subscriptions, Insurance, Accountancy
600s and 700s	Assets	Business current account, Trade debtors, Computer equipment
800s	Liabilities	Trade creditors, VAT, PAYE and NI, Director's loan account
900s	Equity	Share capital, Retained earnings

Splitting income into "design fees" and "retainers" lets the owner see which side of the business is growing. Separating freelance costs into direct costs shows the true gross margin on client work.

Why it matters for your business

A well-designed chart of accounts gives you reports you can actually use. Too few accounts and everything lands in "general expenses", hiding what you spend. Too many and coding becomes inconsistent, so the same cost appears in three places. The right level of detail depends on the decisions you need to make.

It also matters for tax. Some costs, such as client entertaining, are not deductible, so keeping them in their own account makes the tax computation quick and accurate. VAT reporting relies on accounts being linked to the right tax rates.

Setting one up

Xero and QuickBooks start you with a default chart that suits most small businesses. It is worth tailoring it when you set up: add income lines for each main revenue stream, separate direct costs from overheads, and archive accounts you will never use. Changing the structure mid-year makes comparisons harder, so a short conversation with your accountant at the start pays off.

Revisit it when the business changes, such as adding a new product line.