05/01/2026
In the financial world, "debit" is the cornerstone of double-entry bookkeeping. While we often think of it as "money leaving an account" (like a debit card), in professional finance, it has a more technical definition.
A debit (abbreviated as Dr.) is simply an entry on the left side of an accounting ledger. Its effect depends entirely on what kind of account you are looking at.
1. The "DEAL" Rule
To keep it simple, accountants use the acronym DEAL to remember which accounts increase when you debit them:
* Dividends (or Drawings)
* Expenses
* Assets (Cash, Inventory, Equipment)
* Losses
> The Rule: If you want to show that you have more of any of these, you Debit the account. If you want to show you have less, you Credit it.
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2. How Debits Affect Different Accounts
Financial professionals categorize every transaction into five main buckets. A debit acts like a toggle switch for these buckets:
| Account Category | A Debit will... | Example Transaction |
|---|---|---|
| Assets | Increase | You receive $1,000 in cash. |
| Expenses | Increase | You pay your monthly office rent. |
| Liabilities | Decrease | You pay off a portion of a bank loan. |
| Equity | Decrease | An owner withdraws money from the business. |
| Revenue | Decrease | You issue a refund to a customer. |
3. The Concept of "The Double Entry"
In the financial world, money never just "appears." It moves from one place to another. Therefore, every debit must have a matching credit.
* Scenario: You buy a $2,000 laptop for your business using cash.
* The Debit: You Debit your "Equipment" (Asset) account for $2,000 (because your assets increased).
* The Credit: You Credit your "Cash" (Asset) account for $2,000 (because your cash decreased).
* Result: The total debits and credits are equal, and your books remain balanced.
4. Why is your Bank Statement "Backwards"?
If a debit increases an asset (like cash), why does the bank say they are "debiting" your account when you spend money?
* From your perspect
