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Guide · 21 pages

Duplicate Invoices

How duplicate invoices happen, what they cost, and how to stop them before they reach the books: ten common causes, an audit method and a five-layer prevention system for QuickBooks Online and Xero.

ScanTrix TeamOctober 202623 min read

Contents
  1. The short version
  2. 1. What is a duplicate invoice?
  3. 2. Why duplicates happen: ten common causes
  4. 3. What duplicate invoices cost
  5. 4. What QuickBooks Online and Xero catch, and what they miss
  6. 5. How to find duplicates already in the books
  7. 6. The five-layer prevention system
  8. 7. How automated duplicate detection works
  9. 8. Edge cases: repeats that are not duplicates
  10. 9. What to do when a duplicate has already been paid
  11. 10. Where ScanTrix fits
  12. Frequently asked questions
  13. Glossary
  14. Sources
  15. Questions about your own setup?

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What's inside

  • The short version
  • 1. What is a duplicate invoice?
  • 2. Why duplicates happen: ten common causes
  • 3. What duplicate invoices cost
  • 4. What QuickBooks Online and Xero catch, and what they miss
  • 5. How to find duplicates already in the books
  • 6. The five-layer prevention system
  • 7. How automated duplicate detection works
  • 8. Edge cases: repeats that are not duplicates
  • 9. What to do when a duplicate has already been paid
  • 10. Where ScanTrix fits
  • Frequently asked questions
  • Glossary
  • Sources
  • Questions about your own setup?