Part B Accounting systems and accounts preparation ⏐ 5: Ledger accounting and double entry 63
NAME OF ACCOUNT
DEBIT SIDE $ CREDIT SIDE $
2 Double entry bookkeeping
The double entry system of bookkeeping means that for every debit there is an equal credit. This is sometimes referred
to as the concept of duality.
Remember the accounting equation said that the total of liabilities plus capital is always equal to total assets, so any
transaction which changes the amount of total assets must also change the total liabilities plus capital, and vice versa.
Alternatively, a transaction may use up assets of a certain value to obtain other assets of the same value. For example, a
business pays $50 for some goods. Its total assets will be unchanged, but the amount of cash falls by $50 and the value
of inventory rises by $50.
2.1 Debits and credits
Ledger accounts, with their debit and credit sides, allow the two-sided nature of business transactions to be recorded.
This system of accounting was first used in Venice in 1494 AD.
2.1.1 The rules of double entry bookkeeping
The basic rule is that every financial transaction gives rise to two accounting entries, one a debit and one a credit. The
total value of debit entries in the nominal ledger is therefore always equal to the total value of credit entries. The meaning
of the terms 'debit' and 'credit' are given below. It will be worth spending some time, at this point, committing them to
memory.
Debit
Credit
•
Increase in an expense (eg purchase of stationery
•
Increase in income (eg a sale)
•
Increase in an asset (eg a purchase of office
furniture
•
Increase in a liability (eg obtaining a bank loan)
•
Decrease in a liability (eg clearing a payable)
•
Decrease in an asset (eg making a cash payment)
A good starting point is the cash account where receipts and payments of cash are recorded. The rule to remember
about the cash account is as follows.
(a) A cash payment is a credit entry, because the cash asset is decreasing. Cash may be used to pay an
expense (eg rent) or to purchase an asset (eg a machine). The matching debit entry is made in the
appropriate expense or asset account.
(b) A cash receipt is a debit entry, because the cash asset is increasing. Cash is received by a retailer who
makes a cash sale. The credit entry is then made in the sales account.
2.2 Example: double entry for cash transactions
A business has the following transactions.
(a) A cash sale (ie a receipt) of $200
(b) Payment of a rent bill totalling $150
(c) Buying some goods for cash at $100
(d) Buying some shelves for cash at $200
How would these four transactions be posted to the ledger accounts?
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