Chapter 11: Control accounts and bank reconciliations
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totals are the same. If they are different, the cause of the error (or errors) should
be found and corrected.
Similarly, the balance on the payables control account in the main ledger should
equal the total of the balances on all the individual supplier accounts in the payables
ledger. A reconciliation check can be made to make sure that these totals are the
same. Any differences should be investigated, and the errors corrected.
A control account reconciliation involves a comparison between these totals,
looking for the reasons for any differences between them, and correcting errors that
are discovered in the checking process. An advantage of having control accounts in
the main ledger for receivables and trade payables is therefore that they can be used
to check for errors in the book-keeping system, and help to ensure that the balances
for receivables and trade payables in the financial statements are correct.
Why might there be differences?
The balance on the receivables ledger control account might differ from the total of
all the balances on the accounts in the receivables ledger for the following reasons:
The total of the credit sales in the sales day book has been debited to the receivables
ledger control account in the main ledger, but one or more individual transactions
were not posted from the sales day book to the individual accounts in the receivables
ledger.
The total of cash received from customers, recorded in the cash book, has been
posted correctly to the receivables ledger control account in the main ledger, but
one or more individual transactions were not posted from the cash book to the
individual accounts in the receivables ledger.
In a manual accounting system, incorrect totals might be posted from the books
of prime entry to the main ledger. For example, a sales day book might include
the following error:
$
EntityA 200
CompanyB 250
CustomerC 300
700
The error here is that the total value of credit sales has been totalled incorrectly (as
$700 instead of $750). The correct amounts will be posted to the individual accounts
in the receivables ledger, but an incorrect total will be posted to both the sales
account and the receivables ledger control account in the main ledger.
The errors described above do not result in differences in the total of debit and
credit entries in the main ledger. Consequently, the existence of an error will not be
discovered by preparing a trial balance.
However, these errors should be discovered by a control account reconciliation.