Rules of Debit and Credit with Examples in Accounting

Every business records money through debit and credit entries. These two terms form the base of the accounting system. Each transaction affects at least two accounts at the same time. One side shows debit and the other side shows credit.

This method keeps records correct and balanced over time. So, no company can track cash or profit without these rules.

Understand What Are Debits and Credits in Accounting

Debit and credit are two sides of every accounting entry. Debit always appears on the left side of an account, while credit always appears on the right side of an account.

Here is the basic form:

Debit (Left)	Credit (Right)
Increase in assets and expenses	Increase in liabilities, equity, and revenue
Decrease in liabilities and equity	Decrease in assets and expenses

Each transaction records equal debit and credit amounts. This rule comes from the double entry accounting system. The system states that total debits must equal total credits.

The reason behind equality relates to balance sheet logic. Assets must equal liabilities plus equity at all times. When debit and credit do not match, accounts lose balance.

So any errors here will appear in trial balance and financial reports. Hence accountants check equality before they close books.

Let’s see examples:

Here is another example:

Here are the three golden rules of accounting:

1. Personal account rule states debit the receiver and credit the giver.
2. Real account rule states debit what comes in and credit what goes out.
3. Nominal account rule states debit expenses and losses and credit income and gains.

Let’s move on to the following section to understand how these rules affect asset accounts.

Debit and Credit Rules for Asset Accounts

Assets include cash, equipment, inventory, and receivables. They follow a specific debit and credit rule. An increase in assets appears on the debit side, while a decrease in assets appears on the credit side.

This rule links directly to the accounting equation. Assets stay on the left side of the equation. Hence, debit increases asset value in records.

Here is an example:

Here are the key debit and credit rules for assets:

• Debit increases asset accounts.
• Credit decreases asset accounts.
• Assets normally carry debit balances.
• Balance sheet shows assets on the left side.

Anyway, let’s move on to the section below to see an example of how it affects liability accounts.

Debit and Credit Rules for Liability Accounts

Liabilities include loans, payables, and accrued expenses. These accounts follow the opposite rule of assets. An increase in liability appears on the credit side and the decrease in liability appears on the debit side.

Liabilities represent amounts the company must pay later.  So, credit increases what the company owes.

Here is an example:

You will also see how the debit and credit rules appear in the equity account in the following section.

Debit and Credit Rules for Equity Accounts

Equity shows owner interest in the business. It includes capital, retained earnings, and drawings. Equity increases through credit entries. It also decreases through debit entries.

Owner investment increases capital account through credit while the owner withdrawal reduces capital through debit entry.

For example:

So, how are revenue accounts affected by debits and credits? Let’s answer this question in the following part.

How Revenue Accounts, Expense Accounts, and Financial Statements Are Affected by Debits and Credits

Revenue represents income from sales or services. It increases with credit entries and decreases with debit entries.

Revenue forms part of equity through retained earnings. Hence, credit in revenue raises company profit.

For Example:

Expenses include rent, salary, and utilities. These accounts increase with debit entries and decrease with credit entries.

Expenses reduce company profit at period end.

Here is another example:

Debits and credits shape every financial report. Balance sheet reflects asset, liability, and equity balances. Income statement reflects revenue and expense totals.

Each journal entry updates ledger accounts directly. Ledger balances then transfer into financial statements.

Assume the company earns 4,000 revenue on cash. Cash increases so you debit Cash account. Revenue increases so you credit Revenue account.

At period end revenue increases net income. Net income then increases retained earnings in equity. Balance sheet shows higher cash and higher equity.

Wrapping Up

Debit means entry on left side of account. Credit means entry on right side of account. Every transaction records equal debit and credit amounts. This equality keeps accounting equation in balance.

Debit increases assets and expenses. Credit increases liabilities, equity, and revenue. Double entry accounting links every transaction to two accounts. Financial statements rely on these balanced records.

Here is a quick recap:

• Debit appears on left and credit appears on right.
• Total debits must equal total credits in every entry.
• Asset and expense accounts increase with debit.
• Liability, equity, and revenue accounts increase with credit.
• Double entry system keeps books balanced and accurate.