OpenAI GPT Powered
We use OpenAI's latest model with Structured Outputs for deterministic, schema-validated extraction. No hallucinated fields.
AI-Powered ExtractionOpenAI GPT reads your invoices
OpenAI GPT reads your invoices
so you don't have to.
Industry-leading AI extracts vendor, dates, amounts, line items, tax, and currency from any invoice format — PDFs, images, or email text. Custom rules let you automate the rest.
OpenAI GPT Powered15+ Data Fields50+ LanguagesCustom AI RulesPre-Classification
Next-generation AI purpose-built for invoices
15+ Extracted Fields
Vendor, invoice number, dates, subtotal, tax, total, currency, PO number, payment terms, billing address, and complete line items.
Smart Pre-Classification
A lightweight classifier screens every document before extraction. Non-financial PDFs are skipped — only real invoices use credits.
Custom AI Rules Engine
Write rules in plain English: "Tag Cloudflare invoices as hosting", "Set due date to Net 30 for Vendor X". AI applies them automatically.
Multi-Language Support
Process invoices in 50+ languages. OpenAI GPT natively understands non-Latin scripts, right-to-left text, and mixed-language documents.
Confidence Scoring
Every extraction includes confidence indicators. Low-confidence fields are flagged for manual review — so you trust the data.
From raw document to structured data in under a minute
1
Document Arrives
Invoice reaches Inbox Ledger via email scan, manual upload, forwarding address, or Telegram/WhatsApp bot.
2
Pre-Classification
A lightweight AI model checks whether the document is financial. Non-invoices are filtered out before extraction begins.
3
OpenAI GPT Extraction
The full AI pipeline reads the document and extracts all fields using Structured Outputs — deterministic, validated JSON every time.
4
Rules Applied
Your custom rules run automatically: tagging, categorization, due date adjustments, vendor normalization, and more.
5
Data Ready
Extracted data appears in your dashboard and flows to connected exports — Drive, Sheets, QuickBooks, Xero, webhooks.
15+
Data Fields
Vendor, dates, amounts, line items, and more
50+
Languages
Multi-language document support
<1min
Processing
Per invoice extraction time
Plain English
Rules
Write automation rules naturally
FAQ
Common Questions
Everything you need to know about AI invoice processing.
- We use OpenAI GPT with Structured Outputs, which produces schema-validated JSON. Critical fields like amounts and dates achieve near-perfect accuracy. The AI handles diverse formats, languages, and layouts.
- PDF attachments, scanned images (JPG, PNG), and invoices embedded in email text. The AI handles single-page, multi-page, tabular, and free-form layouts.
- Yes. Line items are extracted whenever present, including multi-page tables. Each item includes description, quantity, unit price, tax, and total.
- You write rules in plain English with conditions and actions. For example: "If vendor name contains Cloudflare, tag as hosting" or "If amount is over 1000 EUR, flag for review". Rules run automatically after extraction.
- Yes, one credit per processed document. However, pre-classification filters non-financial documents before extraction — so you only pay for real invoices.
- Yes. OpenAI GPT's vision capabilities can read handwritten text in photos. Send a photo via Telegram/WhatsApp or upload manually.
- The AI detects the invoice currency automatically and extracts amounts in the original currency. Your dashboard supports configurable display format with any currency position, separator, and symbol style.
- Yes. You can edit any extracted field directly in the dashboard. Over time, custom rules help you prevent recurring patterns.
- Vendor name, invoice number, invoice date, due date, subtotal, tax amount, discount, total, currency, PO number, payment terms, billing address, recipient details, document type, and complete line items.
- Before full extraction, a lightweight AI model classifies each document. Marketing PDFs, newsletters, and other non-financial attachments are skipped — no credit charged, no clutter in your dashboard.
Get Started
Start automating your invoices today
Connect your email, upload your first invoice, and see AI extraction in action — all in under 60 seconds.
Start for freeNo credit card required