Duplicate invoice
The same invoice entered or received more than once.
Definition
A duplicate invoice is the same vendor invoice recorded more than once in the accounts payable system. It often happens when a vendor resends an invoice, when paper and electronic copies are both entered, or when the invoice number is keyed slightly differently (for example with or without a prefix).
Why it matters
A duplicate invoice is the usual root cause of a duplicate payment. Catching it before payment is far cheaper than recovering the money afterwards.
How SpanFin helps
SpanFin checks uploaded invoice files for repeated invoice numbers per vendor and for same-amount invoices across vendors, and treats a matching credit note as a legitimate re-issue so genuine corrections are not flagged.
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