E-filing returns
Louisiana has mandated electronic filing of composite returns (Form R-6922) and composite extensions (Form R-6467V). All types of Form R-6922 (calendar, short year, fiscal year, and amended) must be filed electronically. IT-565 must be electronically filed if total assets are over 500,000.
Louisiana allows for PDF attachments to the composite return as well as electronic funds withdrawal (EFW) for any balance due.