AI-Powered Invoice Processing for Cross-Border Tax Compliance
Outcome
Invoice processing time reduced by 90% — from 25 minutes to under 3 minutes per document.
Context
A European services company processing dozens of foreign invoices monthly needed to automate the creation of tax-compliant self-invoices — a manual, error-prone process involving currency conversion, tax classification, and regulatory filings.
Problem
Each foreign invoice required multiple manual steps: identify the supplier, determine the correct tax document type, convert currency using official central bank rates, register the purchase, and create the self-invoice in draft. Errors risked tax penalties. The process consumed over 10 hours of accounting effort per month.
What we built
An AI-powered chat-based workflow that accepts PDF invoice uploads, extracts structured data, classifies tax document types, fetches official exchange rates with holiday fallback, and creates supplier records and draft self-invoices automatically.
Our approach
Built in a 2-week sprint: week one for API research, data flow design, and currency conversion edge cases; week two for implementation and testing with real invoices across multiple currencies and supplier types. All outputs created in draft mode with human review before submission.
Outcome
Processing time dropped by 90%. Monthly accounting effort reduced by over 10 hours. Zero classification errors in the first three months of operation, with automatic handling of exchange rate lookups including fallback for weekends and holidays.
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