Nico Voigt
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January 30, 2026

From Receipt Photo to Finance Ledger: Designing an OCR+LLM Pipeline

How to structure an automation pipeline that stays robust and auditable even when inputs are messy.

Architecture

  • OCR extraction
  • Normalization
  • LLM structuring
  • Validation rules
  • Ledger posting

Guardrails

  • Schema validation
  • Confidence thresholds
  • Human-in-the-loop for edge cases
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