Positive Pay 101: A Simple Daily Habit That Can Stop Fraud

Positive Pay is one of the simplest daily habits a business can adopt to block check fraud before it ever touches your operating cash. In an era of AI‑driven scams and increasingly sophisticated counterfeit checks, that extra two‑minute review can literally be the difference between “minor inconvenience” and “We have to shut down our main account.”

Why is business check fraud getting worse?

Criminals no longer need special equipment to create convincing counterfeit checks or to alter payees and amounts; high‑resolution printers and generative artificial intelligence tools make it easy to produce professional‑looking forgeries that slip past a quick visual glance. At the same time, AI has enabled business email compromise and deepfake scams, where fraudsters impersonate owners or executives to rush payments or change vendor information.

Industry reports show AI‑driven and multi‑step fraud attacks rising sharply through 2024 and 2025, including synthetic identities and deepfake‑enabled payment requests that specifically target business accounts. In this environment, a single fraudulent check clearing your primary account can force you to close and reopen it, disrupting payroll, vendor payments, and client refunds in one blow.

What is Positive Pay?

Positive Pay is an automated fraud‑prevention service that Tropical Financial Credit Union corporate members use to double‑check every check presented against the list of checks their business has issued. Think of it as a gatekeeper: Only checks on your business account at Tropical Financial or another institution on your approved list are allowed through. Anything that looks off gets pulled aside for you to review.

Here are the basics of Positive Pay:

• The business banking team must set up with your business
• Members enter issued checks into an online file
• When a check is presented for payment, the system automatically compares the details on the check to what’s in your online file
• If everything matches, the check is paid; if there is any mismatch, the item becomes an “exception” and is flagged for your decision. All items are paid until rejected.

You maintain active control over which checks to clear.

What a two‑minute morning review looks like

Most Positive Pay systems are built for speed, which is why they work well as a daily micro‑habit for owners, chief financial officers, or bookkeepers. Here’s how a two‑minute routine typically works:

1. Log in
   You log into business online banking or your treasury portal first thing in the morning, just like you might glance at yesterday’s balance.
2. Go to the Positive Pay/Exceptions screen
   There will be a dedicated Positive Pay or “exceptions” section showing any checks that did not perfectly match your issued‑check file.
3. Review each exception
   For each flagged check, you’ll see the check number, date, amount, and payee. You compare that to your accounting records or yesterday’s check run.
4. Decide: pay or return
   If the check is legitimate (For example, you recognize it as a recent vendor payment), you click “pay” or “approve.” If it’s unfamiliar or altered, or if you know the check was voided, you instruct the system to return or dishonor the item.
5. Confirm and move on
   Once you’ve made decisions on all exceptions, you confirm and log out. The whole process is typically under two minutes on a normal day when the system finds few or no exceptions.

Because Positive Pay is running continuously in the background, most days you’ll see “no exceptions” and be done in seconds. That quick check‑in on your TFCU account makes the safeguard work.

How Positive Pay blocks today’s scams

Positive Pay is particularly powerful against the types of fraud that are booming in the AI era:

• Counterfeit and altered checks
  Criminals can use AI‑designed templates and high‑quality printing to create checks that look just like your business checks but with different payees, amounts, or check numbers. Positive Pay catches these because the presented check details don’t match what you uploaded, so the item is flagged before funds leave your account.
• Mail theft and “washed” checks
  Stolen checks are often chemically “washed” to change the payee and amount, a crime that has become more common as organized rings exploit stolen mail and business identity data. Since the edited check no longer matches your original issue file, Positive Pay will treat it as an exception.
• AI‑driven impersonation and rush requests
  In deepfake or business‑email‑compromise scams, fraudsters may persuade staff to cut a “rush” check or change a vendor's payment details. Even if someone falls for the social‑engineering part, the check still must pass the Positive Pay match, giving your team one last chance to spot something off during the morning review.
  

A small habit with a big impact

For most businesses, the hardest part is just building the routine: exporting or entering issued checks at the end of the day and doing a quick Positive Pay review each morning. Once it becomes a habit, you gain daily confidence that no unauthorized check can quietly slip through, even as fraud tactics evolve.

If you are already a business member at Tropical Financial but not yet using Positive Pay, your credit union’s treasury or cash‑management team can walk you through setup and show you what that two‑minute check‑in looks like on your specific platform. Reach out to your local TFCU branch today for further information.