Glossary
What is cost per invoice?
By Tim White · Last updated
Cost per invoice is the all-in cost of handling one supplier invoice from arrival to payment. It includes the labor to key and check it, the cost of errors like duplicate or late payments, and the software involved. Most of the cost hides in time, which is why it stays invisible until you measure it. Removing the manual checking, not just the typing, is the main lever for lowering it.
What goes into the number
Three things drive it. Labor is the biggest: the minutes spent keying an invoice, checking it, and routing it for approval. Errors add more: a duplicate paid, a late fee on a bill that slipped, time spent on rework. Software is the smallest piece. To estimate your own, add up what your team spends on payables in a period and divide by the invoices processed.
How to bring it down
The trap is automating the typing but keeping the checking, since checking is the slow part. InvoiceJet verifies each field so clean invoices clear in about 30 seconds with no clicks, and only uncertain ones reach a person. Fewer duplicates and late fees follow from detection and overdue tracking. Put it in scale: 200 invoices a month at 4 minutes each is over 13 hours before anyone has checked a thing.
Common questions
How do I calculate cost per invoice?
Add your total accounts payable processing cost for a period, labor plus tooling plus error costs, then divide by the number of invoices processed in that period.
Does automation really lower it?
It lowers the labor by removing the checking on clean invoices and cuts error costs by catching duplicates and overdue bills. It does not remove the need to review genuinely uncertain invoices.
Sources
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