Real-time invoice fraud detection
Flag duplicate invoices and fraud risks before payment—without replacing your AP workflow.
Invoice Firewall checks incoming supplier invoices against your invoice history, supplier patterns, bank-detail changes, and configured policies before payment. Your team gets a PASS, REVIEW, or BLOCK result with evidence and a versioned audit trail. Start with recurring files or by forwarding invoices from your AP mailbox; connect the API or your ERP when you are ready to automate.
Deterministic rules · evidence on every exception · never a language model
Continuous control
More than a one-off invoice analysis
A script or coding agent can inspect an AP export once. Invoice Firewall preserves the context, control, and evidence needed to apply the same governed process to every invoice over time.
History that compounds
Invoice, supplier, bank-account, payment, and review history stays available for the next decision.
Governed decisions
Every decision records its evidence and the engine and policy versions that produced it.
An operational loop
Forwarded invoice emails, recurring files, APIs, review outcomes, audit history, and webhooks turn checks into a maintained control.
What it checks
Invoice fraud and duplicate checks before payment
Exact & fuzzy duplicates
Supplier, invoice number, amount, and date matched against your invoice history.
Supplier anomalies
Amount and frequency patterns that break from a supplier's baseline.
Bank-detail change & BEC fraud
New or changed supplier bank accounts — a common sign of business email compromise — flagged before payment.
PO tolerance (optional)
Price, quantity, and total variance against a purchase order.
E-invoice validation (optional)
Check Peppol BIS and UBL/CII invoices with the official Peppol and CEN validation artefacts, on top of KoSIT validation for XRechnung and FA(3) schema checks for KSeF — see current compliance coverage.
Evidence, every time
Every exception includes the evidence behind it — never a bare score.
A deliberate limit
The decision is never made by an AI model
PASS, REVIEW, and BLOCK are produced by deterministic rules and explicitly approved statistical models — never by a language model. Every decision is reproducible against the exact engine and policy version that made it. BLOCK is advisory unless your integration chooses to enforce it.
Getting there
Firewall is the second step, not the first
AP recovery audit
Most teams start with a free AP recovery audit to quantify likely recoverable exposure in their AP data.
Validate exceptions
Confirm the exceptions hold up against real invoices before connecting anything live.
Monitor, then automate
Continue with recurring file uploads, then move to real-time PASS/REVIEW/BLOCK decisions once your team is ready.
Ready for real-time control?
See Invoice Firewall plans and volume pricing.
Not ready for live control yet? Start with a free AP recovery audit of your existing data.
FAQ
Common questions
What is invoice fraud detection software?
Software that screens incoming supplier invoices for duplicates, anomalies, and bank-detail changes before payment, so suspected fraud and errors can be reviewed before money moves.
Is the PASS/REVIEW/BLOCK decision made by AI?
No. Decisions are produced by deterministic rules and explicitly approved statistical models, never a language model, and every decision is reproducible against the exact engine and policy version that made it.
Do I need an ERP integration to subscribe?
No. Use recurring CSV/XLSX audits or forward invoices from your AP mailbox, with no integration, then connect the included API or your ERP (Business Central, Odoo, Xero, or QuickBooks Online) when you are ready to automate real-time decisions.
Does Invoice Firewall replace my ERP or payment system?
No. It's a pre-payment control layer that works through recurring file uploads or connects via API or ERP integration — it gates the pay decision, not the workflow, and BLOCK is advisory unless your integration chooses to enforce it.