What is a chart of accounts?

What is a chart of accounts?

Chart of accounts definition

A chart of accounts (COA) is the foundation of every accounting system. It is a structured list of all accounts used in the general ledger to record financial transactions.

What is the purpose of a chart of accounts?

Each transaction is assigned to an account code so that the process of recording and reporting financial data remains accurate and consistent.

A well-designed chart of accounts can also grow with the business, accommodating new products, departments and regions without losing its structure.

The result? Faster month-end closes, more accurate and efficient reporting, smoother audits, sharper forecasts and more confident decision-making.

What are examples of chart of accounts codes?

Most charts of accounts are grouped into five main categories:

  • Assets: cash, receivables, equipment
  • Liabilities: loans, payables, taxes
  • Equity: capital, retained earnings, dividends
  • Revenue: sales, service income, interest
  • Expenses: salaries, rent, utilities

These five core categories are broken down into subcategories to provide greater detail. Each subcategory is assigned a unique code in the general ledger.

For example, Assets might be split into:

  • Current Assets:
    • 1000 = Cash
    • 1100 = Accounts Receivable
    • 1200 = Inventory
  • Fixed Assets:
    • 1500 = Buildings
    • 1600 = Vehicles
    • 1700 = Equipment

This coding system allows for high-level visibility and reporting, as well as detailed analysis of financial data, e.g. tracking spend on vehicles vs equipment.

How does a group chart of accounts work?

For a single entity, the chart of accounts is a simple structure that classifies its transactions. However, when businesses expand into multi-entity groups, the group chart of accounts can quickly spiral into chaos.

  • Different entities often develop their own category names and numbering systems.
  • This can lead to inconsistencies and unreliable reporting across the group, and significant time and effort is required to deliver a clear picture.
  • As a result, consolidations become messy, compliance becomes harder to maintain, and manual reconciliations pile up at month end.

To regain order, many groups establish a master chart of accounts using spreadsheets, positioning one chosen entity’s account codes as a definitive source of truth. Local entities then map their individual accounts to this master set of codes to ensure consistency, comparability and regulatory compliance.

How should you structure a chart of accounts across multiple entities?

The principle worth holding onto is: standardise what needs comparing, and leave the rest local. In practice that means a shared numbering structure and a common set of P&L and balance sheet codes across every entity, with additions handled centrally rather than by whoever needs a new code that afternoon.

Genuinely entity-specific accounts - local tax codes, statutory items - can sit outside the standard set without causing problems. What does cause problems is using separate account codes to capture department, region or cost centre. Those belong in tracking categories or dimensions, otherwise the chart of accounts multiplies every time the business adds a location.

How can you maintain control over a group chart of accounts?

Creating a master chart of accounts is only the first step. Keeping it consistent across multiple entities is where the real difficulty lies, particularly if you are doing so manually using spreadsheets.

In reality, manual management means that entities often struggle to adhere to following their master spreadsheet. This can be due to typos, misclassifications, human error under pressure, onboarding pains and oversights.

The cost of that drift shows up at consolidation. If every entity’s trial balance uses the same codes, they add up directly. If they don’t, someone maintains a mapping table between each entity and the group structure, updates it whenever a code is added, and investigates whatever falls out - every single month, growing with each new entity.

That’s why many modern finance teams are turning to chart of accounts automation to reduce manual effort and ensure that the COA remains a reliable source of truth, regardless of scale. Mayday HQ gives finance teams central visibility of the codes in use across every entity, highlights misnamed and missing codes against a chosen primary entity, and lets you push corrections back to your accounting system.

Next, read our guide to chart of accounts automation to see how it keeps entities in sync and allows finance teams to focus on analysis instead of admin.

If you’d like to see how Mayday HQ could simplify your group chart of accounts processes, sign up for a 30 day no-card free trial today or book a demo with one of the team.