Comparing vendor addresses to employee addresses is a common audit test to detect fictitious invoices. Fictitious invoices are often created by employees who use their addresses or addresses of associates as vendor addresses to facilitate fraud.

Option B: Matching cancelled checks to invoices ensures payment was made but does not specifically detect fictitious invoices.

Option C: Searching for duplicate payments addresses duplicate invoices but not necessarily fictitious ones.

Option D: Checking employee bank records could indicate fraud but is invasive and less direct than comparing addresses.

IIA Practice Guide: Fraud Detection.

COSO Fraud Risk Management Guide.