Accounting Intelligence Blog

Practical insights for Controllers

GL investigation, month-end close, duplicate detection, and what it actually takes to keep books clean at a growing company.

Duplicate Detection June 29, 2026 · 5 min read

Why Duplicate Transactions Slip Through QuickBooks — And How to Find Them

Duplicate transactions are one of the most common — and most costly — issues Controllers find during month-end close. Here's why they happen, why QuickBooks misses them, and how to catch them before they become problems.

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Example — Flagged GL Row
Acme Software Inc
Office Expense · Jun 12
$2,850
⚠ Duplicate
Acme Software Inc
Office Expense · Jun 14
$2,850
⚠ Duplicate
Uplift Desk
Office Expense · Jun 15
$1,200
✓ Clean

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