Lesson

Rules of Debit and Credit

Learn the simple logic behind why an account is debited or credited.

Understand debit and credit as the two sides used to record every business transaction.

Beginner10-12 min

Concept explanation

Understand the idea first

What debit and credit really mean

Debit and Credit are the two sides of accounting.

Debit does not always mean increase.

Credit does not always mean decrease.

Simple line: Debit means left side. Credit means right side. The effect depends on the account.

For some accounts, debit means increase. For some accounts, credit means increase.

So first understand the account type, then apply the rule.

Why every transaction has two sides

Every business transaction affects at least two accounts.

If cash comes in, something else also changes, such as capital, sales, or a debtor.

If cash goes out, something else also changes, such as rent, salary, purchases, furniture, or a creditor.

That is why every journal entry has a debit side and a credit side.

The total debit amount must always equal the total credit amount.

The five modern rules

Asset: if an asset increases, debit it. If an asset decreases, credit it. Cash received means Cash A/c Dr. Cash paid means Cash A/c Cr.

Liability: if a liability increases, credit it. If a liability decreases, debit it. Goods bought on credit from Amit means Amit A/c Cr. Paid Amit means Amit A/c Dr.

Capital: if capital increases, credit it. If capital decreases, debit it. Owner starts business with cash means Capital A/c Cr. Owner withdraws cash means Drawings A/c Dr.

Expense or Loss: expenses and losses are debited. Paid rent means Rent A/c Dr.

Income or Gain: incomes and gains are credited. Received commission means Commission Income A/c Cr.

Personal Account

Rule: Debit the receiver, Credit the giver

A personal account is connected with a person, business, customer, supplier, debtor, creditor, or owner.

If a person receives value, debit that person's account.

If a person gives value, credit that person's account.

Example: Paid cash to Amit Rs.5,000.

Amit receives money, so Amit A/c is debited.

Cash goes out, so Cash A/c is credited.

Real Account

Rule: Debit what comes in, Credit what goes out

A real account is connected with assets such as cash, bank, furniture, machinery, and building.

If an asset comes into the business, debit it.

If an asset goes out of the business, credit it.

Example: Bought furniture for cash Rs.10,000.

Furniture comes in, so Furniture A/c is debited.

Cash goes out, so Cash A/c is credited.

Nominal Account

Rule: Debit all expenses and losses, Credit all incomes and gains

A nominal account is connected with expenses, losses, incomes, and gains.

Expenses and losses are debited.

Incomes and gains are credited.

Example: Paid salary Rs.8,000.

Salary is an expense, so Salary A/c is debited.

Cash goes out, so Cash A/c is credited.

Simple story

Riya runs a small stationery shop.

Day 1: she starts business with cash Rs.50,000. Cash comes into business, so Cash is debited. Owner's capital increases, so Capital is credited.

Day 2: she buys notebooks for cash Rs.10,000. Purchases increase, so Purchases is debited. Cash decreases, so Cash is credited.

Day 3: she sells goods for cash Rs.5,000. Cash increases, so Cash is debited. Sales income increases, so Sales is credited.

Day 4: she pays rent Rs.2,000. Rent expense increases, so Rent is debited. Cash decreases, so Cash is credited.

If students can identify what increased and what decreased, debit-credit becomes easier.

Modern rules

Increase and decrease logic

Account typeIncreaseDecreaseExample
AssetDebitCreditCash, Bank, Furniture
LiabilityCreditDebitLoan, Creditors
CapitalCreditDebitOwner's Capital, Drawings
Expense/LossDebitCreditRent, Salary, Wages
Income/GainCreditDebitSales, Commission Received

Visual flow

Mental model

1

Read transaction

2

Identify accounts affected

3

Ask account type

4

Check increase/decrease

5

Apply rule

6

Write journal entry

Solved examples

See the rule in action

Example 1

Started business with cash Rs.50,000

Cash A/c Dr. Rs.50,000
To Capital A/c Rs.50,000

Cash is an asset and increased, so Cash is debited.

Capital increased, so Capital is credited.

Example 2

Bought goods for cash Rs.10,000

Purchases A/c Dr. Rs.10,000
To Cash A/c Rs.10,000

Purchases increased, so Purchases is debited.

Cash decreased, so Cash is credited.

Example 3

Paid salary Rs.5,000 in cash

Salary A/c Dr. Rs.5,000
To Cash A/c Rs.5,000

Salary is an expense, so Salary is debited.

Cash went out, so Cash is credited.

Example 4

Sold goods to Raju Rs.8,000 on credit

Raju A/c Dr. Rs.8,000
To Sales A/c Rs.8,000

Raju becomes debtor. Amount receivable from Raju increases, so Raju is debited.

Sales income increases, so Sales is credited.

Example 5

Paid Amit Rs.6,000

Amit A/c Dr. Rs.6,000
To Cash A/c Rs.6,000

Amit is creditor. Liability to Amit decreases, so Amit is debited.

Cash decreases, so Cash is credited.

Avoid these

Common Mistakes

Thinking debit always means increase
Thinking credit always means decrease
Putting Cash on debit side when cash is paid
Forgetting that expenses are debited
Forgetting that incomes are credited
Confusing debtor and creditor
Missing To before the credit account
Looking only at account name without understanding the transaction

Practice prompts

Try It Yourself

Paid rent Rs.3,000 in cash. Expected: Rent A/c Dr. / To Cash A/c.
Received commission Rs.2,000. Expected: Cash A/c Dr. / To Commission Income A/c.
Bought furniture through bank Rs.12,000. Expected: Furniture A/c Dr. / To Bank A/c.
Sold goods to Amit Rs.7,000. Expected: Amit A/c Dr. / To Sales A/c.
Owner withdrew cash Rs.2,000. Expected: Drawings A/c Dr. / To Cash A/c.

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