MassDTE is electronic invoice automation software for bulk tax document issuance in Chile. It reads Excel files or bank statements, using AI to analyze transactions and prepare electronic invoices for review and batch submission to tax authorities. The platform converts financial transactions into formatted tax documents, eliminating manual data entry. Supporting various document types, including standard and exempt invoices for cryptocurrency and peer-to-peer transactions, it complies with Chilean tax regulations. MassDTE stores encrypted credentials locally and operates as a browser extension for Chrome, Edge, and Brave on Windows, Mac, and Linux. It connects with financial institutions like BancoEstado, Santander, Banco de Chile, and Mercado Pago. Processing large invoice batches in minutes, it allows users to review AI classifications before approval. Audit trails with folio numbers, PDFs, and emission history ensure document tracking and prevent duplicates.