ACCT 3

Lesson Topic: Double-entry bookkeeping

I. Debit and Credit entries

-In accounting, Debit (Dr) and Credit (Cr) are the two sides used to record every transaction.

Evevry account/transaction have debits and credits

. Debit: an entry on the left side of an account.

. Credit: an entry on the right side of an account.

⭐ Debit & Credit Cheat Sheet

Account

Debit (Dr)

Credit (Cr)

Asset

⬆ Increase

⬇ Decrease

Expense

⬆ Increase

⬇ Decrease

Liability

⬇ Decrease

⬆ Increase

Owner's Equity/Capital

⬇ Decrease

⬆ Increase

Revenue/Income

⬇ Decrease

⬆ Increase

🧠 Remember this:

DEBIT: Assets ↑, Expenses ↑
CREDIT: Liabilities ↑, Equity ↑, Revenue ↑

total Debit always = total Credit


Cash comes in → Debit Cash ✅
Cash goes out → Credit Cash ✅

But:

Revenue comes in → Credit Revenue ✅


The easiest rule to memorize:

Account

When it increases

Asset

➡ Debit

Expense

➡ Debit

Liability

➡ Credit

Owner's Equity

➡ Credit

Revenue

➡ Credit

P1: C

P2: C

P3: find jurnal entry


1. Know the 5 types of accounts

Every transaction affects one or more of these:

Account

What it means

Example

Asset

What the business owns

Cash, equipment, supplies

Liability

What the business owes

Loan, Accounts Payable

Owner's Equity

Owner's claim in the business

Capital

Revenue

Money earned from business activities

Sales, Service Revenue

Expense

Costs of running the business

Rent, salary, electricity

Easy examples

Cash → Asset
Equipment → Asset
Loan → Liability
Capital → Equity
Sales → Revenue
Rent → Expense


2. Understand Debit and Credit

Don't think of debit as "good" and credit as "bad."

They simply mean:

Debit (Dr) = LEFT side
Credit (Cr) = RIGHT side

Every transaction has both.

⭐ The most important rule:

Assets + Expenses increase → Debit

Liabilities + Equity + Revenue increase → Credit

You can memorize:

A + E = Debit
L + E + R = Credit


3. Understand that accounts can increase OR decrease

For example, Cash is an asset.

If you receive $1,000:

Cash increases → Debit

If you pay $500:

Cash decreases → Credit

So:

Cash (Asset)


Debit ↑

Credit ↓

This applies to assets:

Asset ↑ = Debit
Asset ↓ = Credit


4. Understand the double-entry concept

This is the main idea of Lecture 3.

Every transaction affects at least two accounts.

And:

Total Debit = Total Credit ✅

Example:

You buy equipment for $3,000 cash.

Two things happen:

  1. Equipment increases → Debit Equipment $3,000

  2. Cash decreases → Credit Cash $3,000

Account

Debit

Credit

Equipment

$3,000


Cash


$3,000

Total

$3,000

$3,000

✅ Balanced!


5. Learn how to analyze a transaction

Before deciding Dr or Cr, ask yourself 3 questions:

Question 1: What accounts are affected?

Question 2: What type of accounts are they?

Question 3: Did they increase or decrease?

Then choose Debit or Credit.

Example:

Business pays $1,000 rent in cash.

Step 1: What accounts?

→ Rent Expense
→ Cash

Step 2: What types?

→ Rent = Expense
→ Cash = Asset

Step 3: Increase or decrease?

→ Expense increases → Debit
→ Cash decreases → Credit

Therefore:

Dr Rent Expense $1,000
Cr Cash $1,000


6. Understand the Accounting Equation

You learned this before:

Assets = Liabilities + Owner's Equity

And your Debit/Credit system must keep everything balanced.

For example:

Owner puts $5,000 into the business.

The business gets:

Cash +$5,000 → Asset increases

The owner's investment creates:

Capital +$5,000 → Equity increases

So:

Assets $5,000 = Equity $5,000 ✅


⭐ Your ACCT 201 cheat sheet

Write this somewhere because you'll use it constantly:

ACCOUNT TYPES

A = Assets → Cash, Equipment, Supplies
L = Liabilities → Loan, Accounts Payable
E = Equity → Capital, Drawings
R = Revenue → Sales, Service Revenue
E = Expenses → Rent, Salary, Utilities

WHEN THEY INCREASE

DEBIT ↑

CREDIT ↑

Assets

Liabilities

Expenses

Equity


Revenue

WHEN THEY DECREASE

DEBIT ↓

CREDIT ↓

Liabilities

Assets

Equity

Expenses

Revenue


And ALWAYS:

TOTAL DEBIT = TOTAL CREDIT ✅




II. Account balances: opening and closing balance

1. How to close off an account

At the end of an accounting period, we calculate the balance remaining in an account.

The basic idea is:

Opening balance + increases − decreases = ending balance

For example:

Opening cash = $2,000
Money received = +$15,000
Money paid = −$1,100
Capital received = +$2,000

Ending cash = $17,900


Practice 1

We need to find the trial balance total on the DEBIT side.

Remember the basic rule:

Debit accounts

  • Expenses

  • Purchases

  • Assets

Credit accounts

  • Capital

  • Sales

Let's classify each:

Account

Amount

Debit/Credit

Rent expense

$1,800

Debit

Capital

$15,000

Credit

Purchases

$10,000

Debit

Sales

$12,000

Credit

Wages

$5,000

Debit

Sundry expenses

$1,000

Debit

Cash

$9,200

Debit

Now add the debit side:

$1,800 + $10,000 + $5,000 + $1,000 + $9,200

= $27,000

✅ Answer: D. $27,000

Easy way to remember

Debit = Expenses + Purchases + Assets

So:

Rent + Purchases + Wages + Sundry expenses + Cash
= $27,000


Practice 2

This one is about a Cash account.

Given:

  • Opening cash = $2,000

  • Payments by customers = +$15,000

  • Rent paid = −$250

  • Insurance paid = −$150

  • Drawings = −$700

  • Capital paid in = +$2,000

Step 1: Start with opening balance

$2,000

Step 2: Add money coming IN

Payments by customers:

+$15,000

Capital paid in:

+$2,000

So:

$2,000 + $15,000 + $2,000 = $19,000

Step 3: Subtract money going OUT

Rent:

−$250

Insurance:

−$150

Drawings:

−$700

Total paid out:

$250 + $150 + $700 = $1,100

Step 4: Find ending balance

$19,000 − $1,100 = $17,900

✅ Balance at 31 March = 17,900</strong></p><h4id="1db0a1d5−fe2e−4bc2−8bff−e0038e385f62"data−toc−id="1db0a1d5−fe2e−4bc2−8bff−e0038e385f62"collapsed="false"seolevelmigrated="true"><spanstyle="font−size:medium;"><strong>HowitlooksasaT−account</strong></span></h4><tablestyle="min−width:75px;"><colgroup><colstyle="min−width:25px;"><colstyle="min−width:25px;"><colstyle="min−width:25px;"></colgroup><tbody><tr><thcolspan="1"rowspan="1"><p><strong>CashAccount</strong></p></th><thcolspan="1"rowspan="1"><p></p></th><thcolspan="1"rowspan="1"><p></p></th></tr><tr><tdcolspan="1"rowspan="1"><p><strong>Debit(moneyIN)</strong></p></td><tdcolspan="1"rowspan="1"><p>17,900</strong></p><h4 id="1db0a1d5-fe2e-4bc2-8bff-e0038e385f62" data-toc-id="1db0a1d5-fe2e-4bc2-8bff-e0038e385f62" collapsed="false" seolevelmigrated="true"><span style="font-size: medium;"><strong>How it looks as a T-account</strong></span></h4><table style="min-width: 75px;"><colgroup><col style="min-width: 25px;"><col style="min-width: 25px;"><col style="min-width: 25px;"></colgroup><tbody><tr><th colspan="1" rowspan="1"><p><strong>Cash Account</strong></p></th><th colspan="1" rowspan="1"><p></p></th><th colspan="1" rowspan="1"><p></p></th></tr><tr><td colspan="1" rowspan="1"><p><strong>Debit (money IN)</strong></p></td><td colspan="1" rowspan="1"><p>

Credit (money OUT)

Balance b/f

2,000

Rent

Payments by customers

15,000

Insurance

Capital

2,000

Drawings

Balance c/f

17,900


Total

36,900

Total

⭐ Bal b/f means Balance brought forward.

It is simply the balance from the previous period that is brought into the new period.

Example:

At the end of March:

Balance c/f = $17,900

Then at the beginning of April:

Balance b/f = $17,900

So:

c/f = carried forward → end of the period
b/f = brought forward → beginning of the next period

🧠 Easy way to remember

b/f = beginning → money/balance brought from before
c/f = closing → balance carried to the next period


⭐c/f means “carried forward.”

It is the ending balance of an account that is carried to the next accounting period.

Simple example:

You have $2,000 cash at the end of March.

In your March Cash Account:

Balance c/f = $2,000

Then when April starts:

Balance b/f = $2,000

🧠 Remember:

  • c/f = carried forward → ENDING balance

  • b/f = brought forward → BEGINNING balance


PRACTICE 3 : C