How to Automate Invoice Reconciliation

Description and use

Automating invoice reconciliation cuts AP close from days to hours, saves 15‑30 staff hours per month, and prevents duplicate payments and fraud by using a vision model for extraction, matching rules, and an audit trail.

Problem

Finance teams manually reconcile hundreds of diverse supplier invoices each month, a process that takes days, is error‑prone, and exposes the company to duplicate payments and fraud.

Outcome

The automation reduces AP close time from days to hours, saves 15‑30 staff hours monthly, and prevents duplicate payments and fraud by flagging changes in bank details, first‑time suppliers, duplicate invoice numbers, and other fraud indicators.

Workflow

• 1. Ingest invoices via email, shared folder or supplier portal, recording document hash to prevent duplicates.
• 2. Extract structured data using a vision model that reads any layout and returns fields such as invoice number, supplier, date, line items, totals, tax, and payment terms.
• 3. Store extracted data in a staging table; no ERP writes yet.
• 4. Match extracted data against open purchase orders and goods receipts; auto‑approve invoices that meet tolerance rules.
• 5. Route exceptions to a human reviewer with highlighted discrepancies; reviewer approves or rejects in one action.
• 6. Record full audit trail of extraction, matching, rule decisions, and approvals for future review.

Evidence

$4,000-8,000 to build, $150-300/month to run, and AP close typically drops from days to hours.

Source

The system catches duplicate invoices and changed supplier bank details, which is where the actual money goes missing.

Source

Typical saving: 15-30 staff hours a month, and AP close measured in hours rather than days.

Source