This instruction-only Spanish tax helper matches its stated purpose, but it handles very sensitive tax documents and should be used with redacted data and professional verification.
Install only if you are comfortable using an assistant for sensitive tax review. Before uploading documents, redact unnecessary NIF/NIE details, bank account numbers, addresses, QR/verification codes, signatures, and third-party data where possible; provide specific values instead of full documents when enough. Verify any deductions or calculated results against official AEAT/foral sources or a qualified tax professional, especially Madrid entries marked incomplete or approximate.