Fundamentals of Auditing ACC 311
TESTING THE SALES SYSTEM
For many businesses, sales are made on credit and so objectives for the sales cycle includes control debtors
These control objectives include:
a) Customers' orders should be authorized, controlled and recorded in order to execute them
b) Goods shipped and work completed should be controlled to ensure that invoices are issued and
revenue recorded for all sales.
c) Goods returned and claims by customers (for example, in respect of damaged goods) should be
controlled in order to determine the liability for goods returned and claims received. .
d) Invoices and credits should be appropriately checked for accuracy and should be authorized before
being entered in the receivables' records.
e) Authorized customer transactions, and only those transactions, should be accurately entered in the
f) There should be procedures to ensure that sales invoices are subsequently paid by customers and
that doubtful amounts are identified in order to determine any provisions or write offs required
Control Procedures over Sales and Debtors
There are a large number of controls that may be required in the sales cycle due to the importance of this
area in any business and the possible opportunities that exist for diverting sales and cash receipts away from
Typical control procedures at key stages of the sales cycle are:
3. Invoicing and credit notes
4. Returns inwards
6. Bad Debts
Existing customers should be allocated a credit limit and it should be ascertained whether this limit
is to be exceeded if the new order is accepted. If so the matter should be referred to credit control.
Any new customer should be referred to the credit control department before the order is accepted.
All orders received should be recorded on pre-numbered sales order documents so that a check can
be made that all orders have been dealt with -a completeness check.
All orders should be authorized before any goods are dispatched.
The sales order document should be used to produce a dispatch note for the goods outwards
department. No goods may be dispatched without a dispatch note.
Dispatch notes should be pre-numbered and a register kept of them to enable them to be matched
with relate to sales invoices and customer orders.
Dispatch notes should be authorized before goods leave the company.
Regular checks should be made to ensure that all dispatches have been invoiced.
(d) Invoicing and credit notes
Sales invoices should be authorized by a responsible official and matched with the authorized order
and dispatch note.
All invoices and credit notes should be entered In daybook records, the sales ledger, and sales
ledger control account. Batch totals should be maintained for this purpose.
Fundamentals of Auditing ACC 311
Sales invoices and credit notes should be checked for prices. casts and calculations by a person
other than the one preparing the invoice.
All invoices and credit notes should be serially pre-numbered and regular sequence checks should
be carried out.
Credit notes should be authorized by someone unconnected with dispatch or sales ledger functions.
Copies of cancelled invoices should be retained.
Any cancellation of an invoice should lead to a cancellation of the related dispatch note.
Cancelled (and free of charge) invoices should be signed by a responsible official.
Each invoice should distinguish between different types of sales and, if relevant, different rates of
VAT or sales tax. Any coding of invoices should be periodically checked independently
Any goods returned by the customer should be checked for obvious damage and, when accepted. a
document should be raised.
All goods returned should be used to prepare appropriate credit notes
A receivables ledger control account should be prepared regularly and checked to individual sales
ledger balances by an Independent official.
Receivables ledger personnel should be independent of dispatch and cash receipt functions.
Statements should be sent regularly to customers.
Formal procedures should exist for following up overdue debts which should be highlighted either
by the preparation of an aged list of balances or by the preparation of regular customer statements.
Letters should be sent to customers for collection of overdue debts. A policy should be in place for
the Institution of legal proceeds where appropriate.
g) Bad debts
The authority to write off a bad debt should be in writing. Appropriate adjustments should be
made to the sales ledger and the control account
The use of court action or the writing-off of a bad debt should be authorized by an official
independent of the cash receipt function.
Tests of Control
Tests of control should be designed to check that the control procedures are being applied and that
objectives are being achieved. Tests may be appropriate under the following broad headings.
(a) Carry out sequence test checks on invoices, credit notes, dispatch notes and orders. Ensure that all
items are included and that there are no omissions or duplications.
(b) Check the existence of evidence for authorization in respect of:
acceptance of the order (the creditworthiness check)
dispatch of goods
raising of the invoice or credit note
pricing and discounts
Write off debtors as bad debts.
Check both that the relevant signature exists and that the control has been applied.
(c) Seek evidence of checking of the arithmetical accuracy of:
invoices, including pricing, and VAT and sales tax calculations
This is often done by means of a 'grid stamp' containing several signatures on the face of the document.
Ensure that the control has been applied by checking the accuracy of such invoices and credit notes.
(d) Check dispatch notes and goods returned notes to ensure that they are matched with invoices and
(e) Check that control account reconciliations have been performed and reviewed.
In all cases, tests should be performed on a sample basis.
Table of Contents: