Employee theft can be difficult to detect, especially in small and midsize businesses where one trusted employee may have significant control over financial transactions.
Fraud rarely announces itself. More often, it appears as a series of small inconsistencies, unusual behaviors, or unexplained financial results. While no single warning sign proves an employee is stealing, several red flags occurring together may warrant a closer look.
Here are 10 signs business owners and managers should watch for.
1. The employee never takes time off
An employee who refuses to take vacations, avoids sick days, or insists on handling financial responsibilities even when they are away from the office may be protecting a scheme.
Fraud often requires ongoing manipulation of records. Another employee stepping into the person’s responsibilities could uncover irregularities.
What to do: Crosstrain employees and require vacations or periodic job rotations for positions involving accounting, cash handling, or financial transactions. Independent review can help uncover problems routine procedures miss.
2. They are unusually protective of their work
Does an employee become defensive when someone asks questions about their transactions? Do they resist having someone review their work or insist nobody else understands the process?
While this behavior isn’t proof of fraud, excessive secrecy surrounding financial duties can be a warning sign.
What to do: Establish a culture in which financial reviews are routine rather than personal. Important financial functions should have appropriate oversight regardless of how trusted an employee is.
3. Cash shortages keep occurring
Small, unexplained cash shortages can be an early warning sign. A missing $50 or $100 may seem insignificant, particularly if it happens only occasionally. But repeated discrepancies can indicate a larger problem.
Cash theft may also involve altered receipts, unauthorized discounts, voided transactions, or transactions not entered into the accounting system.
What to do: Reconcile cash regularly and investigate recurring discrepancies rather than simply writing them off as mistakes.
4. Vendor information seems unusual
Fraud involving vendors can be particularly difficult to identify. An employee may create a fictitious vendor, submit inflated invoices, or arrange for company payments to be directed to an account they control.
Warning signs can include vendors with similar addresses, phone numbers, or bank accounts as employees, unusually high prices, duplicate invoices, or payments for services not verified.
What to do: Periodically review the vendor master file and independently verify new vendors. Require appropriate documentation and approval before adding or changing vendor payment information.
5. The employee’s lifestyle changes dramatically
A sudden and unexplained change in an employee’s lifestyle can sometimes be a behavioral red flag. New vehicles, expensive purchases, or other spending inconsistent with known circumstances may raise questions.
However, lifestyle changes alone should not be treated as evidence of theft. There may be many legitimate explanations.
What to do: Focus on financial records and objective evidence—not assumptions about an employee’s personal finances.
6. Financial records require frequent “adjustments”
An employee who regularly makes journal entries, changes transactions, or explains discrepancies with complicated accounting adjustments may be creating opportunities to conceal missing money.
Fraud can sometimes be hidden through false journal entries, altered account balances, or transactions recorded in the wrong period.
What to do: Review unusual or manual journal entries, particularly those made near the end of a reporting period. Consider requiring a second person to review significant adjustments.
7. They have complete control over a financial process
One of the biggest risks isn’t necessarily an employee’s behavior—it’s the company’s internal control structure.
If one employee can create a vendor, approve an invoice, issue a payment, record the transaction, and reconcile the bank account, there may be little opportunity for anyone else to detect wrongdoing.
This is a classic segregation-of-duties problem.
What to do: Separate key responsibilities whenever possible. If staffing limitations make complete segregation impractical, implement compensating controls such as independent reviews, management approval, and periodic reconciliations.
8. Bank or credit card statements contain unexplained transactions
Unrecognized ACH payments, checks, wire transfers, credit card purchases, or electronic transfers deserve attention.
Fraudsters may disguise personal transactions as legitimate business expenses or use company accounts to make unauthorized payments.
What to do: Someone independent of the payment process should review bank and credit card statements regularly. Look beyond the total balance and examine individual transactions.
9. Customers or vendors complain about payments
A customer may say they paid an invoice that still appears outstanding. A vendor may claim a payment was never received. These discrepancies can be caused by ordinary accounting errors, but repeated complaints can also signal payments are being diverted or manipulated.
What to do: Investigate discrepancies directly with the customer or vendor. Avoid relying solely on information provided by the employee responsible for the transaction.
10. The numbers don’t make sense
Sometimes the biggest warning sign is simply something doesn’t add up.
Profit margins may decline without an obvious explanation. Inventory may disappear. Accounts receivable may grow unexpectedly. Expenses may increase. Cash flow may not correspond with reported revenue.
Fraud can leave a trail in the numbers long before anyone identifies the person responsible.
What to do: Compare financial results over time and investigate unusual trends. Analytical procedures, reconciliations, and forensic accounting techniques can help identify transactions or patterns that deserve additional investigation.
What Should You Do If You Suspect Employee Theft?
The most important thing is not to jump to conclusions.
A suspicious transaction isn’t necessarily fraud. An employee’s unusual behavior isn’t proof of wrongdoing. And confronting someone without understanding the evidence can make an investigation more difficult.
Instead, consider these steps:
1. Preserve the evidence
Protect accounting records, emails, invoices, bank statements, transaction histories, and other relevant documents. Do not alter or delete potentially relevant information.
2. Limit unnecessary access
If there is a legitimate concern about ongoing losses, work with appropriate management, legal counsel, and IT personnel to determine whether access to financial systems or company assets should be restricted.
3. Don’t conduct an informal interrogation
A manager confronting an employee with accusations can unintentionally tip off someone who is committing fraud. It can also create employment or legal complications.
4. Document what you know
Record specific transactions, dates, amounts, and circumstances that raised concerns. Stick to facts rather than conclusions.
5. Consider an independent investigation
A forensic accountant can examine financial records, reconstruct transactions, identify irregularities, and quantify potential losses. An independent investigation can also help management determine whether a suspected discrepancy is actually fraud or simply an accounting error.
6. Review your internal controls
Even after the immediate problem is addressed, ask how the fraud happened. If one employee was able to steal money without detection, there may be a control weakness.
The goal shouldn’t simply be to identify the person responsible. It should be to understand how the fraud occurred, how much was lost, and how the organization can prevent it from happening again.
Trust Is Not an Internal Control
Many employee theft cases involve people who were considered trustworthy., which is precisely why internal controls matter.
Good controls aren’t about assuming employees are dishonest. They’re about creating systems in which mistakes and misconduct are more likely to be detected.
Segregating financial responsibilities, conducting independent reconciliations, reviewing unusual transactions, and maintaining strong documentation can significantly reduce the opportunity for fraud.
If something doesn’t look right, don’t ignore it. A small discrepancy today could be a much larger loss tomorrow.
If you suspect employee theft or need help determining the extent of a potential financial loss, a forensic accounting professional can help you evaluate the records, investigate the transactions, and develop a clear understanding of what happened.
Photo by Anton Kudryashov
