The Grammar of Commerce
Every journal entry answers three questions: what happened, which accounts move, and by how much. Master ten patterns and you can record a hundred business events.
Accrual Principle: Cash-basis waits for the bank; accrual-basis tells what really happened.
| Event | Debit | Credit |
|---|---|---|
| Cash sale | Cash | Sales revenue |
| Credit sale | Accts Receivable | Sales revenue |
| Buy inventory | Inventory | Accts Payable |
| Pay supplier | Accts Payable | Cash |
| Collect cash | Cash | Accts Receivable |
Transactions & Depreciation
Continuing our core patterns, expenses and equity entries follow the exact same logic of balanced debits and credits.
| Event | Debit | Credit |
|---|---|---|
| Pay wages | Wage expense | Cash |
| Owner investment | Cash | Share capital |
| Take a loan | Cash | Loan payable |
| Depreciation | Depr. expense | Accum. depr. |
| Pay dividend | Retained earnings | Cash |
Depreciation: Dr Depreciation Expense, Cr Accumulated Depreciation. No cash moves; it allocates an asset's cost over its useful life, reducing book value and profit.