The invoice verification process
Verifying an invoice has two halves. The first can be automated; the second needs your records.
Part 1: Verify the document
This is what InvoiceInspect does when you upload a PDF.
| Check | What is compared |
|---|---|
| Line totals | Quantity multiplied by unit price against each line amount |
| Subtotal | The sum of the lines against the printed subtotal |
| Tax or VAT | The printed rate applied to the taxable amount against the printed tax |
| Grand total | Subtotal, tax, discounts and shipping against the amount due |
| Basics | Invoice number, dates and supplier name are present |
| Repeated lines | A line identical to an earlier one is flagged as a warning |
If a value cannot be read reliably, it is reported as could not verify instead of being guessed.
Part 2: Verify the invoice against your records
No tool can do this from the PDF alone. Work through this checklist:
- Do you know the supplier? Find them in your supplier list.
- Is there an order behind it? Match a purchase order, signed quote or contract.
- Was it delivered? Check the delivery note or confirm the work was done.
- Do the details match? Compare name, address, tax ID and invoice numbering with earlier invoices.
- Have the bank details changed? If so, confirm by phoning a number you already hold, never one printed on the invoice or in the email.
- Is it a duplicate? Search for the same invoice number or amount from this supplier.
How to verify an invoice online in three steps
- Upload the PDF. Digital and scanned invoices both work; scanned pages are read with OCR.
- Read each result. Every check is marked passed, warning, error or could not verify, with the expected and actual figures side by side.
- Finish the checklist above for anything the document cannot tell you.
Verification and fraud
A fraudulent invoice can have perfect arithmetic, so a passed calculation check is not proof of authenticity. Read how to identify a fake invoice and our fake invoice guide for the warning signs.
Related checks
- Invoice validation: the document-level checks in more detail.
- Common invoice errors and how to fix them.
Privacy
For guests, the PDF is processed in memory and is not saved. See the security practices for details.