Duplicate invoice checker
A repeat invoice
deserves a second look.
Compare the supplier, invoice number, currency, and amount from two bills. A match is a reason to check your payment records.
Text-based PDFs, up to 30 pages each. Photos and scanned PDFs are not supported yet.
Review invoice details
Review the details.
You can correct every field before comparing.
Fictional sample. This comparison does not use your free allowance.
Vault Mail · Comparison reportYour comparison
| Detail | Trusted reference | New invoice | Result |
|---|
Files: PDF or TXT · 10 MB per file · 30 PDF pages. No photo or scanned-PDF reading.
A duplicate candidate is not a confirmed duplicate payment
The same supplier and invoice number may indicate a resent copy, a correction, or a bill already entered. Vault Mail flags that combination for review. Your payment ledger and the supplier's records determine whether money has already moved.
Compare the right two documents
Enter supplier names consistently. This tool uses text matching rather than guessing that differently named businesses are the same company. Check the invoice number, amount, currency, service period, and any credit note before deciding what to do.
This version compares two documents at a time. Read how to review a possible duplicate invoice.