Beginning Bookkeeping Review 📈

Welcome! This course will review the major concepts of bookkeeping.

Lesson 1: What is Bookkeeping?

Bookkeeping is the process of recording all the financial transactions a business makes. Think of it as keeping a detailed diary of every dollar that comes in or goes out.

Why do we do it?

A transaction is any business event that has a monetary impact. For example:

Quiz: Lesson 1

1. What is the primary purpose of bookkeeping?

2. Which of the following is a "transaction"?

Click to see answers

1. Answer: b) Recording all financial transactions

2. Answer: a) Paying an employee's salary (This involves an exchange of money)


Lesson 2: The Accounting Equation (The Foundation)

All of bookkeeping is built on one simple, powerful idea: The Accounting Equation.

Assets = Liabilities + Equity

Let's break that down:

This equation must always be in balance. Every single transaction will affect at least two parts of this equation to keep it balanced. This is the core of "double-entry" bookkeeping.

Quiz: Lesson 2

1. What is the accounting equation?

2. A bank loan is an example of a(n)...

3. If a business has $50,000 in Assets and $20,000 in Liabilities, what is its Equity?

Click to see answers

1. Answer: c) Assets = Liabilities + Equity

2. Answer: b) Liability (It's money you owe to the bank)

3. Answer: b) $30,000 (Because Equity = Assets ($50k) - Liabilities ($20k))


Lesson 3: The "Big 5" Account Types

We can expand the accounting equation to include the two things that change Equity: Revenue and Expenses. This gives us the 5 main account types you'll use every day.

  1. Assets: What you own (Cash, Computers, etc.)
  2. Liabilities: What you owe (Loans, Credit Cards, etc.)
  3. Equity: The owner's net worth in the business.
  4. Revenue (or Income): Money you earn from sales or services.
    (Revenue makes your business richer, so it increases Equity)
  5. Expenses: Money you spend to run the business.
    (Expenses make your business poorer, so they decrease Equity)

So, the "expanded" accounting equation looks like this:

Assets = Liabilities + Equity + (Revenue - Expenses)

Quiz: Lesson 3

1. Money earned from selling a product is classified as...

2. Paying the monthly rent for your office is a(n)...

3. How does Revenue affect Equity?

Click to see answers

1. Answer: a) Revenue

2. Answer: c) Expense

3. Answer: a) It increases Equity (Earning money makes the owner's claim higher)


Lesson 4: Introduction to Debits & Credits (The "How")

This is the part most people find tricky, but it's just a system for making the accounting equation balance. "Double-entry" bookkeeping means every transaction has two sides: a Debit and a Credit.

Crucial rule: For any transaction, the total amount of Debits MUST equal the total amount of Credits. This is what keeps the equation in balance!

How Debits and Credits affect the 5 account types is the most important rule to memorize:

Account Type To INCREASE ⬆ To DECREASE ⬇
Assets DEBIT CREDIT
Expenses DEBIT CREDIT
Liabilities CREDIT DEBIT
Equity CREDIT DEBIT
Revenue CREDIT DEBIT

Mnemonic Tip: Remember D.E.A. (Debits increase Expenses & Assets). If you remember that, you know the other three (Liabilities, Equity, Revenue) are the opposite!

Example: You buy a $500 computer (an Asset) with cash (also an Asset).

Quiz: Lesson 4

1. In any transaction, total Debits must equal total...?

2. To increase an Asset account (like Cash), you would...

3. You pay your $1,000 rent bill (an Expense) with cash (an Asset). What is the correct entry?

Click to see answers

1. Answer: b) Credits

2. Answer: a) Debit it (Based on the D.E.A. rule)

3. Answer: b) Debit Rent Expense, Credit Cash
(Why? You are increasing your Rent Expense account, so you DEBIT it. You are decreasing your Cash asset account, so you CREDIT it.)


Lesson 5: Introduction to Financial Statements (The "Why")

After recording all your transactions, the final step is to summarize them into reports called Financial Statements. These reports tell you the story of your business's health.

There are three main statements, but we'll focus on the first two:

  1. The Income Statement (or Profit & Loss Statement)
    • What it shows: Your performance over a *period of time* (like a month or a year).
    • The formula: Revenue - Expenses = Net Income (or Profit)
    • The question it answers: "Did I make any money?"

  2. The Balance Sheet
    • What it shows: Your financial position at a *specific point in time* (like December 31st).
    • The formula: It's just the accounting equation! Assets = Liabilities + Equity
    • The question it answers: "What is the company's net worth?"

The Income Statement's result (your Net Income) flows into the Equity section of the Balance Sheet. They all work together!

Quiz: Lesson 5

1. Which report shows your Revenue and Expenses?

2. The Balance Sheet is a snapshot of which equation?

3. If you want to know if you were profitable last *month*, which report would you look at?

Click to see answers

1. Answer: b) Income Statement

2. Answer: c) Assets = Liabilities + Equity

3. Answer: a) Income Statement (It shows profit over a *period of time*, like a month)

🎉 Review Complete! 🎉

Congratulations! You've just completed your reviewe of the fundamental building blocks of bookkeeping. You now understand the accounting equation, the 5 account types, debits & credits, and the main financial statements.