Document AI for Invoice Processing: Automate Data Entry With OCR and LLMs
How document AI reads invoices, purchase orders and forms, extracts and validates fields like GSTIN and totals, and pushes clean data into your ERP automatica
Finance teams still spend hours typing invoice numbers, GSTINs, amounts and line items from PDFs into accounting software. Document AI reads those documents, extracts the data, checks it and sends it where it needs to go, leaving people to handle exceptions only.
Key takeaways
- OCR + AI extraction + validation rules work best together.
- Human-in-the-loop review for low-confidence fields protects accuracy.
- Straight-through processing rate is the key metric to track.
- Integration with your ERP is where the time savings become real.
How it works
- Capture: invoices arrive by email, upload or scanner.
- Read: OCR converts images and PDFs into text.
- Extract: AI models identify fields such as vendor, invoice number, date, GSTIN, totals and line items.
- Validate: rules check totals, tax calculations, duplicates and vendor master data.
- Review: low-confidence or failing documents go to a reviewer screen.
- Post: clean data is pushed to your ERP or accounting system.
Documents it handles well
| Document | Typical fields |
|---|---|
| Purchase invoices | Vendor, GSTIN, invoice no., date, taxes, totals, line items |
| Purchase orders | PO number, items, quantities, prices |
| KYC documents | Name, ID number, address, date of birth |
| Delivery notes | Items, quantities, signatures |
| Bank statements | Transactions, balances |
Drowning in documents? See our Document AI & intelligent OCR solution or discuss your document types.
Measuring results
Track the share of documents processed without human touch, average handling time, error rates found in audits and the backlog at month-end. Start with one document type and one team, then expand.
Security and privacy
Financial and identity documents are sensitive. Keep processing in secure environments, restrict access by role, log every action and set retention rules so documents are not kept longer than needed.
