A German tax consultancy struggled with processing international financial documents in multiple languages and currencies. Staff manually translated documents, looked up historical exchange rates, and classified them into German tax categories: a slow, error-prone process that limited growth.

We built an autonomous pipeline using n8n and Gemini 2.5 Pro featuring specialized agents for OCR translation, autonomous FX normalization with API-based historical rate retrieval, tax classification into German legal buckets, and structured extraction into a centralized audit trail.