Invoice fraud costs businesses over $26 billion a year. And here's the thing most people miss — the damage doesn't start in accounting. It starts at the front desk.

Someone opens the morning mail. They see an envelope from what looks like a regular supplier. Professional letterhead, a PO number that seems right, a due date that creates just enough urgency. They put it in the "to pay" pile. Done.

That 3-second decision — open, glance, stack — is where most fake invoices win.

I built a short framework called the First Touch Filter after watching this happen to three different small businesses I work with. Same pattern every time:

• The invoice looked legitimate

• The person sorting mail wasn't trained to check

• By the time AP noticed, the payment was already processed

The fix isn't complicated. It's a 60-second check that the first person touching incoming mail does before anything moves toward payment. No software. No expensive audit. Just a simple sorting protocol and a red-flag checklist taped next to the mail tray.

I wrote it all up in a free ebook — Training the First Invoice Catcher. It covers the filter framework, what makes fake invoices convincing, how to separate suspicious mail from the payment pile, and how to hand off only verified bills to accounting.

If you run a small business and the first person who touches your mail isn't trained to spot fakes, this is worth 30 minutes of your time.