Paper F2: Management Accounting
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2.5 Opening and closing inventory
The raw materials account, work-in-progress account (incomplete production) and
finished goods account provide a record of the cost of opening and closing
inventory at the beginning and end of each accounting period.
The value of the inventory is the current balance on the inventory account. This is
always either 0 or a debit balance.
However, at the end of an accounting period, an account is ‘closed off’ for the
period, and the balance on the account is:
carried forward as a closing balance for the period that has just ended, and
an opening balance at the beginning of the new period.
An example of a materials account is shown below, to illustrate how the opening
and closing inventory are recorded:
Materials account
Period 1
$
Period 1
$
Opening inventory b/f 5,000
Work in progress
(direct materials)
35,000
Purchases 46,000
Production overheads
(indirect materials)
9,000
Closing inventory c/f 7,000
51,000
51,000
Period 2
Opening inventory b/f 7,000
The closing inventory at the end of a period is entered on the credit side ‘above the
line’ and the corresponding double entry is a debit entry ‘below the line’ as opening
inventory at the beginning of the next period.
‘b/f’ means ‘brought forward’. You might also see the letters ‘b/fwd’ or ‘b/d’
(meaning ‘brought down’). Similarly, ‘c/f’ means carried forward. You might also
see the letters ‘c/fwd’ or c/d (for ‘carried down’).
The opening inventory brought forward is called the ‘balance’ on the account at the
beginning of the period. In the example above, the opening balance of $7,000 at the
beginning of period 2 could be calculated as (Opening inventory + Purchases) –
Materials issued. Here this is $5,000 + 46,000 - $(35,000 + 9,000) = $7,000.
2.6 The costing system income statement
There is an income statement in the cost ledger, for recording the profit or loss in
each accounting period. This is a part of the double entry cost accounting system.
The credit side of the income statement records sales. The debit side of the income
statement records the cost of sales.
There might also be other items in this account, such as under- or over-absorbed
overheads (in an absorption costing system) or variances (in a standard costing