The Trustworthy AP Clerk
Harlow Foods has a 12-person finance team. The accounts payable clerk, who has been with the company 11 years, maintains the vendor master file, enters invoices, and prints and mails checks; the controller reviews and signs checks after they are printed. The clerk also reconciles the bank account when the assistant controller is on leave, which has been most of the last five months due to a family medical leave. The controller says the clerk is 'completely trustworthy' and that the company is too small for full segregation. An audit test of 60 payments found two payments to a vendor whose bank details were changed by the AP clerk, with no independent verification call.
1. Identify the specific control deficiencies and explain the fraud opportunity they create. Why do the two vendor payments matter?
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The AP clerk holds all three legs of the cash-disbursement cycle:
- Asset custody: prints and mails checks.
- Recordkeeping: maintains the vendor master and enters invoices.
- Reconciliation: reconciles the bank account for most of the last five months.
That combination permits a classic scheme: create or alter a vendor, change its bank details, enter and approve the payment, print the check, then reconcile the bank statement so the payment appears legitimate - or conceal it. The reconciliation during the assistant controller's leave is the most serious element because it removes the one detective control that could catch the change.
The two payments to a vendor whose bank details were changed by the clerk without independent verification are a red flag, not a routine exception: the change was made by the person who also processes and reconciles payments. The audit should establish who changed the details, when, whether the vendor confirmed the change, and where the money went before treating this as a documentation gap. Consider expanding testing across the leave period and notifying the CAE and, through the CAE, the audit committee and legal counsel.
2. Evaluate the controller's 'we are too small for segregation of duties' argument. What practical compensating controls would you recommend?
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Size affects the form of segregation, not the need for it. In a 12-person team you cannot separate every function, so the objective shifts to making error, collusion, or concealment detectable through detective controls and independent verification.
Practical options:
- Vendor master changes require a second approver and an independent call-back to a previously known vendor number before bank details change.
- Positive pay, or bank confirmation of new payees.
- Reconciliation performed by someone outside AP (the controller, the assistant controller on return, or a rotating reviewer), with evidence of review.
- Check printing released only against an approved payment run, with the controller comparing signed checks to the approved list.
- Periodic independent review of the vendor master for new vendors, duplicate addresses or bank accounts, and employee details.
- Surprise audits of the function.
Also address the underlying cause: the assistant controller's five-month absence removed a key control and nobody covered it. That is a management failure, not a trustworthiness question. 'Completely trustworthy' is a character judgment, and character is not a control - controls exist for the case where trust is misplaced.
3. How should the auditor classify and communicate this, and what should happen about the two payments?
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Classification depends on magnitude, likelihood, and whether any compensating control existed. Reconciliation performed by the same person who processes payments is a design deficiency with no compensating control during the leave, so it is at least a significant deficiency and should be assessed for material weakness if payment values and volume are large enough to permit material misstatement. Do not default to 'significant' without the numbers; document the amounts tested and the potential exposure.
Communication: report in writing to the controller and CFO, and to the audit committee. This is not an informal verbal comment. State the deficiency, the fraud opportunity, the specific evidence, and the recommended controls.
The two payments: treat them as a potential fraud indicator. Preserve evidence; determine whether the vendor was legitimate, whether goods or services were received, and whether the bank change was authorized. Internal audit investigates enough to establish the facts, then refers to management and legal per protocol. It does not confront the clerk or conduct an interview without the CAE and legal involvement. If fraud is confirmed, escalate immediately to the audit committee.