How Invoq catches duplicate and suspicious invoices before they're booked
A look at how Invoq flags problems in an invoice — duplicates, mismatched numbers, and odd patterns — before they ever reach your books.
An invoice doesn't have to be fraudulent to cause a problem. Most of the time it's simpler than that: a supplier sends the same invoice twice, a PDF gets forwarded by two different people, or a total doesn't add up because of a rounding error upstream. All of that is common. The difference is catching it before it's booked, rather than finding it during the audit six months later.
Why this is easy to miss manually
A busy month can bring hundreds of invoices across email, scans, and uploads. An accountant going through them one by one is relying on memory and spot-checks — did I see this invoice number before? Does this total look right for this supplier? At that volume, a duplicate or a quietly wrong number is easy to miss. There's just too much coming through to catch it all by eye.
What Invoq checks for
Invoq runs a set of checks on every invoice before it's put in front of anyone for approval:
- Duplicates — same invoice number from the same supplier, or the same amount, date, and supplier combination appearing more than once, even if it arrived through a different channel (email vs. upload) or with a slightly different filename.
- Arithmetic mismatches — line items, VAT, and totals that don't add up to what the invoice states.
- Supplier and VAT number inconsistencies — a VAT number that doesn't match the supplier's country, isn't valid in VIES, or doesn't match the same supplier's past invoices.
- VAT registration status for Estonian suppliers — for a domestic supplier, Invoq checks the Estonian Business Register to see whether they're actually VAT registered. If an invoice charges VAT but the supplier isn't registered for it, or the registration status doesn't match what was used on past invoices from them, that's flagged too.
- Missing required fields — no VAT number, no invoice number, no date, or other essentials that VAT law expects to be there.
You keep the final call
Nothing gets silently skipped and nothing gets silently booked either. When Invoq flags something, it names exactly what looks wrong, points to the invoice it conflicts with if there is one, and gives the reviewer a clear next step. Invoq doesn't decide that an invoice is fraudulent or reject it outright — it surfaces the problem and lets a person make the call.
Sometimes a "duplicate" is legitimate, like a genuine repeat purchase with the same round number. Invoq's job is to make sure that decision gets made consciously, instead of by accident.