Double-Entry System Basics



Module 1:
Foundations of Accounting

Duration:
45-60 minutes

Level:
Beginner to Diploma-Level


Lesson Objectives

Understand the double-entry system and why it is used.

Differentiate between debits and credits.

Apply debit and credit rules to real transactions.

Record simple entries using T-accounts.


Key Vocabulary

Double-entry
Debit
Credit
T-account
Ledger
Expense
Revenue


What Is Double-Entry Accounting?

Double-entry means every transaction has two sides

One debit
One credit

This helps keep the accounting equation balanced.


Debit and Credit Rules

Account Type
Assets
Liabilities
Equity
Revenue
Expenses

Debit
Increase
Decrease
Decrease
Decrease
Increase

Credit
Decrease
Increase
Increase
Increase
Decrease


Key Memory Trick
DEAD CLIC

D E A D
Debits increase: Expenses, Assets, Drawings

C L I C
Credits increase: Liabilities, Income, Capital


T-Accounts

A T-account looks like this

Cash
Debit



  Credit




Debits go on the left, credits on the right.


Real-life Transaction Examples

Example 1
Owner invests $5,000

Cash
Capital

Debit Cash
Credit Capital



Real-life Transaction Examples

Example 2
Business buys supplies for $300 cash

Supplies
Cash

Debit Supplies
Credit Cash



Real-life Transaction Examples

Example 3
Business takes a loan of $2,000

Cash
Loan Payable

Debit Cash
Credit Loan Payable



Real-life Transaction Examples

Example 4
Business earns $400 from sales

Cash
Revenue

Debit Cash
Credit Sales Revenue



Real-life Transaction Examples

Example 5
Business pays rent $200

Rent Expense
Cash

Debit Rent Expense
Credit Cash



Debit or Credit?

Say whether each item increases with a debit or a credit

Cash
Accounts Payable
Owner's Capital
Rent Expense
Sales Revenue


Identify the Entry

For each transaction, write which account is debited and which is credited.

Bought furniture for $1,000 cash
Received $300 from a customer
Paid $150 electricity bill
Took a bank loan of $4,000
Owner withdrew $200 for personal use


T-Account Fill-in

Fill in the correct sides

Transaction
You pay $100 for office supplies in cash.

Supplies
Cash

______
______



Mini Case Study

A new bakery started business. Here are three transactions from Day 1

The owner invested $10,000 cash.
The bakery bought an oven for $3,000 cash.
The bakery made its first sale and received $150 cash.

Questions

Q. What is the debit and credit for each transaction?
Q. Which accounts increased?
Q. Which accounts decreased?


Short Answer

What side is debit on?

What side is credit on?

Debits increase which two major account types?

Credits increase which two major account types?

True or False | Every transaction must have at least one debit and one credit.

Answers ➧ Here

Debit | Credit Masterclass ➧ Here