Introduction to Sales and Purchases

Welcome! In this chapter, we are looking at the "bread and butter" of every business: Sales and Purchases. Think of it like this—a business is a machine that buys things (Purchases) to either sell them directly or turn them into something else to sell (Sales). Recording these correctly is the foundation of all accounting. Don't worry if this seems like a lot to take in; we'll break it down step-by-step.

1. Cash vs. Credit Transactions

In the world of accounting, not all sales and purchases happen with cash immediately. We categorize them into two types:

Cash Transactions: The goods are exchanged, and the money is paid right away. (Example: Buying a coffee at a café).
Credit Transactions: The goods are exchanged now, but the payment happens later. This creates a "promise" to pay. (Example: An office ordering stationery and receiving an invoice to be paid in 30 days).

Key Terms to Remember:

Receivables: People who owe us money (our customers).
Payables: People we owe money to (our suppliers).

Quick Review: If you sell something on credit, you have a Receivable. If you buy something on credit, you have a Payable.

2. Understanding Discounts

Sometimes, the price on the tag isn't what is actually recorded. There are two main types of discounts you need to know:

A. Trade Discounts

This is a reduction in the list price given at the time of purchase, usually for buying in bulk.
The Golden Rule: Always record the transaction AFTER deducting the trade discount. We never show trade discounts in our main accounting ledgers.

B. Settlement (Cash) Discounts

These are offered to encourage customers to pay their bills early. For example, "Pay within 10 days and get 5% off."
Analogy: Imagine a friend owes you \$10. You say, "If you pay me back today, you only owe me \$9." That \$1 discount is a settlement discount.

Common Mistake to Avoid:

Do not confuse the two! Trade discounts happen at the moment of sale (bulk buying). Settlement discounts happen at the moment of payment (paying early).

3. Sales Tax (VAT)

Most businesses act as a "tax collector" for the government. When we sell something, we add Sales Tax (often called VAT) to the price.
Output Tax: Tax charged on sales (you owe this to the government).
Input Tax: Tax paid on purchases (you can usually claim this back from the government).

Important Note: Revenue (Sales) and Expenses (Purchases) are always recorded NET of tax in the financial statements. The tax itself goes into a separate "Sales Tax Control Account."

The Formula:
\( Gross \ Price = Net \ Price + Sales \ Tax \)
If the tax rate is 20%, the formula is:
\( Net \ Price \times 1.20 = Gross \ (Total) \ Price \)

4. Books of Prime Entry

Before we put transactions into the big "Master Ledger," we write them down in "Rough Books" called Books of Prime Entry. This keeps things organized.

1. Sales Day Book (SDB): Records all credit sales invoices.
2. Purchase Day Book (PDB): Records all credit purchase invoices.
3. Sales Returns Day Book: Records goods sent back to us by customers (Returns Inwards).
4. Purchase Returns Day Book: Records goods we send back to suppliers (Returns Outwards).
5. Cash Book: Records all bank and cash movements.

Did you know? Even in modern computer systems like Xero or QuickBooks, these "Day Books" still exist in the background to organize the data before it hits the financial statements!

5. Recording the Double Entry

Now, let's look at how we actually record these in the accounts. Remember the DEAD CLIC mnemonic (Debit: Expenses, Assets, Drawings; Credit: Liabilities, Income, Capital).

Recording a Credit Sale:

When you sell on credit, you increase your Income and increase your Assets (the customer owes you money).
Debit: Receivables (Asset increases)
Credit: Sales (Income increases)
Credit: Sales Tax (Liability to the government increases)

Recording a Credit Purchase:

When you buy on credit, you increase your Expenses and increase your Liabilities (you owe the supplier).
Debit: Purchases (Expense increases)
Debit: Sales Tax (Asset - you can claim this back)
Credit: Payables (Liability increases)

Step-by-Step for Returns:

If a customer returns goods (Sales Return), just "flip" the original entry:
1. Debit Sales Returns (reduces your income)
2. Debit Sales Tax (you don't owe the tax anymore)
3. Credit Receivables (they don't owe you the money anymore)

6. Summary and Key Takeaways

Trade Discounts are deducted before recording anything.
Sales are recorded in the Sales Day Book; Purchases in the Purchase Day Book.
Revenue is always recorded Net of sales tax.
Receivables (Customers) are Assets (Debits).
Payables (Suppliers) are Liabilities (Credits).

Encouragement: Recording transactions is like learning a new language. At first, it feels strange, but once you understand that every "In" has an "Out" (Double Entry), it will start to click! Keep practicing the T-accounts for sales and purchases, and you'll be an expert in no time.