AP fraud prevention
Prevent accounts payable fraud before the wire leaves
AP fraud doesn't announce itself. It arrives as a routine invoice from a familiar vendor at the right time — and leaves as an irreversible wire transfer. Vantirs adds a pre-payment verification layer to QuickBooks Online so your team catches it before approval, not after.
$2.9B
BEC losses in 2024 (FBI IC3)
61%
of BEC now uses real vendor inboxes
~0%
recovery rate after wire clears
What Vantirs flags before payment approval
- ✓Vendor bank account changed from verified history — flagged with previous vs. new account detail
- ✓Sender domain differs from vendor's verified identity in QuickBooks
- ✓Invoice amount outside this vendor's historical statistical range
- ✓Payment routing to a beneficiary account with no prior history in your books
- ✓New vendor requests routed to high-risk account types or geographies
- ✓Duplicate invoice patterns across vendor, amount, and timing dimensions
The six AP fraud types your team faces in 2026
Each requires a different detection approach. Vantirs addresses all six through behavioral verification at the payment-instruction level.
Vendor email compromise (VEC)
CriticalAttacker uses a compromised real vendor inbox to send fraudulent bank-detail updates. Bypasses email authentication and dual-approval. Now 61% of all BEC attacks.
Business email compromise (BEC)
CriticalImpersonation of an executive or vendor via lookalike domain. Fraudster requests urgent wire or payment-detail change. FBI: $2.9B in losses in 2024.
Fake invoice fraud
HighAI-generated invoices that match real vendor templates but route payment to a fraudulent account. Visual review no longer catches modern forgeries.
Vendor bank account change fraud
HighLegitimate-looking request to update a vendor's bank details mid-relationship. The highest-risk event in any AP workflow — and the most common VEC delivery mechanism.
Duplicate invoice fraud
MediumSlight alterations to invoice numbers, amounts, or dates to push duplicate payments through. Often missed when AP volume is high.
Ghost vendor fraud
MediumPayments to vendors that don't exist or are controlled by insiders. Common in organizations without systematic new-vendor verification.
Sits on top of your existing QuickBooks workflow
No new AP system. No workflow rebuild. Vantirs connects to QuickBooks Online via OAuth and adds a pre-payment verification layer to the process your team already uses. Flags arrive via Slack and email before your pay run — giving reviewers specific context, not just a risk score.
- →Connects in under a day. OAuth sync to your QBO account, no IT project required.
- →Specific, actionable flags. Every alert includes the exact anomaly — not a score to interpret.
- →Audit trail auto-generated. Every review decision is timestamped and stored for NACHA compliance and internal audit.
- →Built for accounting firms. Multi-client support for firms managing AP across dozens of client books.
Frequently asked questions
What is accounts payable fraud?
Accounts payable fraud covers any scheme where fraudulent invoices or payment instructions cause a company to send money to an unauthorized party. The most common types are vendor impersonation (BEC/VEC), fake invoice submission, duplicate invoices, ghost vendors, and insider manipulation of payment details.
What is the most common AP fraud vector in 2026?
Vendor email compromise (VEC) — a BEC variant where the attacker uses a real, compromised vendor email address to send fraudulent payment-change requests. It bypasses most standard AP controls because the communication looks fully legitimate. VEC now accounts for 61% of all BEC attacks.
How does Vantirs prevent accounts payable fraud?
Vantirs connects to your QuickBooks Online account and builds a behavioral fingerprint for each vendor. When an invoice or payment instruction deviates from that fingerprint — changed bank account, unfamiliar sender domain, unusual amount — Vantirs surfaces a specific, reviewable flag before your team approves payment.
Does AP fraud prevention software replace our internal controls?
No — it strengthens them. Vantirs adds an automated pre-payment verification layer that your team reviews before approval. This complements your existing dual-approval policies, call-back procedures, and audit requirements rather than replacing them.
Does Vantirs help with NACHA 2026 compliance?
Yes. Vantirs creates an auditable record of pre-payment fraud checks — including each flag detected, reviewer decision, and timestamp — which supports the risk-based fraud monitoring documentation NACHA 2026 requires for ACH originators.
AP fraud prevention that catches what your controls miss
Connect Vantirs to QuickBooks Online. Start reviewing live AP fraud signals before your next pay run.
No IT setup · QuickBooks Online · NACHA 2026 audit trail