Chart of accounts explained: a beginner's guide

What is a chart of accounts?

A chart of accounts is a complete list of every financial account used in your business's bookkeeping system. Think of it as a filing system for money. Every dollar that enters or leaves your business gets recorded in one of these accounts. When you look at your financial reports, the numbers come from grouping and summarizing these accounts.

The chart of accounts is not a report itself. It is the structure that makes reports possible. Without it, transactions would be an unsorted pile of numbers. With it, you can generate a profit-and-loss statement, a balance sheet, or a cash flow report at any time and understand exactly where your money is going.

The 5 account types

Assets are things your business owns or is owed. This includes your bank accounts, accounts receivable (money customers owe you), equipment, inventory, and prepaid expenses. When you deposit a check, that transaction increases an asset account.

Liabilities are what your business owes to others. Credit card balances, loans, accounts payable (money you owe vendors), and accrued expenses all fall here. When you take out a loan, the proceeds increase a liability account.

Equity represents the owner's stake in the business. For a sole proprietor, this includes owner contributions and draws. For a corporation, it includes retained earnings and shareholder equity. Equity is the difference between assets and liabilities.

Revenue accounts track money earned from your business activities. This might be service revenue, product sales, interest income, or other income streams. Revenue increases when you invoice a customer or make a sale.

Expenses track the costs of running your business. Rent, payroll, software subscriptions, office supplies, travel, and professional services each get their own expense account. Expenses reduce your net income.

How to set one up

Start simple. Most small businesses need between 20 and 40 accounts. A typical setup might look like this: a checking account and savings account under assets, a credit card account under liabilities, owner's equity under equity, one or two revenue accounts, and 10 to 15 expense categories covering the main areas where you spend money.

Many accounting tools provide a default chart of accounts when you create a new company. This is usually a fine starting point. Review the defaults, delete accounts that do not apply to your business, and add any that are missing. A freelance designer does not need an "Inventory" account. A retail shop probably does not need "Subcontractor Expense." Trim the list to match your actual operations.

Number your accounts using a consistent scheme. A common convention is 1000s for assets, 2000s for liabilities, 3000s for equity, 4000s for revenue, and 5000s through 6000s for expenses. Numbering makes sorting and filtering easier, especially as your business grows.

Keep it simple

The most common mistake is creating too many accounts too soon. A new business does not need separate expense accounts for "Pens," "Paper," and "Printer Ink." A single "Office Supplies" account works until you have a reason to break it down further. You can always add accounts later. Removing or merging accounts after the fact is messier.

Another pitfall is inconsistent naming. Pick a naming convention and stick to it. Use either "Travel Expense" or "Expense - Travel" but not both patterns. Consistent naming makes your chart readable and your reports easier to interpret.

Common mistakes

Duplicating accounts is a frequent problem. This happens when two people set up accounts independently, or when someone creates "Consulting Revenue" without noticing that "Professional Services Income" already exists. Periodically review your chart and merge any duplicates.

Using personal accounts for business transactions is another issue. If business and personal expenses get mixed into the same accounts, your financial reports become unreliable, and tax preparation becomes far more difficult. Keep business and personal finances entirely separate from the start.

Finally, never delete an account that has transactions posted to it. Instead, make it inactive so historical data is preserved. Deleting an account with a balance will create discrepancies in your reports that can be very difficult to trace.

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