Vendor bank-change and duplicate-payment tools

Ongoing software connected to QuickBooks is great for busy AP teams. A one-time review fits owners and bookkeepers who want a check without connecting anything.

• Invogi: free AP risk scan from an export or read-only QuickBooks/Xero; ongoing invoice checks on paid plans.
• Vantirs: connects to QuickBooks Online and flags changed payment instructions and duplicate patterns.
• BankChangeGuard: structured callback verification when a vendor says it changed banks.
• Flash: free duplicate-payment investigation guide for QuickBooks.
• PayablesCheck: send two exports (bank numbers removed); get a ranked PDF of duplicate-looking payments, recent bank changes, invalid/shared tax IDs and lookalike domains. Free up to 200 payments; $149 for a 12-month review; $39/month watch.

Free mini-review · Bank-change fraud signs · Free scans vs $149 review

FAQ

How do I check if a vendor bank change request is real?

Call the vendor on a phone number already in your own records, never one from the email asking for the change, and hold the payment until confirmed.

Do I need software to find duplicate payments?

Not always. QuickBooks' Transaction List by Vendor, sorted by amount and date, catches many. Tools like Invogi (free scan), Vantirs and BankChangeGuard automate checks; PayablesCheck does a free mini-review of up to 200 payments from exports, no login to your books.

Competitor details are summarized from each company's own public page, checked October 15, 2026, and may change; check their page for current terms. Names are trademarks of their owners; we're not affiliated.