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    Lesson 3 · Bookkeeping Foundations

    Accounts and the Chart of Accounts

    A bookkeeper does not just write numbers in one big list. Each amount goes into a labeled account. The full list of those accounts is called the chart of accounts, and it is the backbone of every set of books.

    Learn It

    Imagine a business as a big jar of coins. If you just toss every coin in, you know how much money you have — but you do not know where it came from or where it went. An account is a labeled container for one kind of money event. Cash goes in the Cash account. Money owed by customers goes in Accounts Receivable. Rent paid goes in Rent Expense.

    The chart of accounts is the full list of accounts a business uses. Think of it as the table of contents for the books. Every transaction gets sorted into one or more accounts from this list.

    Accounts are grouped into five main types. Each type tells you something different about the business.

    The Five Account Types

    Assets

    Things the business owns that have value. Cash, equipment, inventory, and money customers owe you are all assets. If the business could use it or sell it, it is an asset.

    Liabilities

    Money the business owes to someone else. Unpaid bills, bank loans, and credit card balances are liabilities. A liability is a promise to pay later.

    Equity

    What belongs to the owner after all debts are paid. It starts with the owner's investment and grows when the business earns revenue. It shrinks when the owner takes money out.

    Income

    Money the business earns from doing its work. Service revenue, sales revenue, and interest earned are all income accounts. Income increases equity.

    Expenses

    Costs of running the business. Rent, utilities, supplies, and wages are expenses. Expenses decrease equity because they use up the business's resources.

    See It

    Here is a simple chart of accounts for a small landscaping business. Notice how each account fits one of the five types, and how the account numbers are grouped by type.

    #Account NameType
    1000Checking AccountAsset
    1200Accounts ReceivableAsset
    1500EquipmentAsset
    2000Accounts PayableLiability
    2100Loan PayableLiability
    3000Owner's CapitalEquity
    4000Service RevenueIncome
    5000Rent ExpenseExpense
    5100Supplies ExpenseExpense
    5200Utilities ExpenseExpense

    The numbers are not random. Accounts starting with 1 are assets, 2 are liabilities, 3 is equity, 4 is income, and 5 is expenses. This numbering helps a bookkeeper find the right account quickly.

    Do It

    Now try it yourself. Read each account name and decide which type it belongs to. This is the skill a bookkeeper uses every day when recording transactions.

    Do It — Classify the Accounts

    For each account, choose the type it belongs to. Think about whether the account represents something the business owns, owes, belongs to the owner, is earned, or is spent.

    Checking Account

    Cash the business owns in the bank

    Accounts Receivable

    Money customers owe the business

    Accounts Payable

    Money the business owes suppliers

    Loan Payable

    Money the business owes a lender

    Owner's Capital

    What the owner invested

    Service Revenue

    Money earned from doing work

    Rent Expense

    Cost of renting space

    Office Supplies

    Cost of supplies used up

    Prove It

    Answer each question, then read the explanation. There's no score — this is just to help the ideas stick.

    Question 1

    A customer pays you for a service. Why does the bookkeeper record this event?

    Question 2

    Which of these is the best description of a source document?

    Question 3

    What is the main difference between bookkeeping and accounting?

    Key Takeaways

    • An account is a labeled container for one kind of money event.
    • The chart of accounts is the full list of accounts a business uses.
    • Accounts are grouped into five types: Assets, Liabilities, Equity, Income, and Expenses.
    • Assets are what you own. Liabilities are what you owe. Equity belongs to the owner.
    • Income is earned. Expenses are spent. Both affect equity.
    • A consistent chart of accounts keeps the books organized and comparable over time.