15 Signs Your Bookkeeper Is Stealing (and How to Protect Your Business)

Internal bookkeeper fraud costs US small businesses an estimated $1.4B annually. The 15 warning signs to watch for and the 5 controls that stop it.

The 15 red flags

1. Bookkeeper refuses to take vacation. 2. Insists on opening their own mail/email at the company. 3. Resists allowing anyone else to review their work. 4. Lives noticeably beyond apparent means. 5. Unusually defensive when asked routine questions. 6. Discrepancies between bank statements and books. 7. Unexplained adjusting journal entries. 8. Vendors you don’t recognise in your AP. 9. Round-number checks to unknown payees. 10. Increasing “miscellaneous” expenses. 11. Bookkeeper writes their own paychecks. 12. Bookkeeper signs checks AND reconciles bank account. 13. Payroll for ghost employees. 14. Customer payments not depositing in full. 15. Bookkeeper handles all customer refunds.

The 5 controls that stop fraud

Control 1 — Segregation of duties. The person who writes checks doesn’t reconcile the bank account. The person who processes payroll doesn’t add new employees. Control 2 — Independent monthly reconciliation review. Someone other than the bookkeeper looks at the reconciliation reports monthly. Control 3 — Mandatory vacation. Bookkeeper takes 2 consecutive weeks every year. Their backup runs the books during that time. Control 4 — Annual surprise audit. Spot-check 30 random transactions per year against source documentation. Control 5 — Owner reviews bank statements directly. Don’t let anyone filter what you see. PDF the statement; look at it monthly.

When to engage forensic help

If you see 3+ red flags above, get forensic help fast. A forensic accountant ($300-$500/hour, typical engagement $5,000-$25,000) can identify and quantify theft. Most internal frauds run 2-5 years before discovery; faster intervention means smaller losses. Contact [email protected] for forensic accountant referrals.