The Accounting Equation
The accounting equation is the foundation of all accounting: Assets = Liabilities + Owner's Equity. This equation must always balance, meaning whatever a company owns must equal what it owes plus what the owners have invested.
Think of it this way - if you have ₱10,000 in cash (asset) and you invested that money yourself, then your equity is ₱10,000. The equation balances: ₱10,000 = ₱0 + ₱10,000. If you later borrow ₱5,000, your assets increase to ₱15,000, but now you owe ₱5,000, so it's still balanced: ₱15,000 = ₱5,000 + ₱10,000.
For the equation to stay balanced, any transaction must follow one of six patterns: increase an asset with a corresponding increase in liability or equity, decrease an asset with a corresponding decrease in liability or equity, or increase one asset while decreasing another.
The expanded accounting equation breaks down owner's equity further: Assets = Liabilities + Owner's Equity + Revenue - Expenses - Draws. This shows how daily business activities (revenues and expenses) affect the basic equation.
Real-World Connection: Every time you buy something, this equation is at work - whether you pay cash (decreasing one asset to increase another) or use credit (increasing assets and liabilities simultaneously)!