The Securities and Exchange Commission has adopted amendments requiring the use of the Inline eXtensible Business Reporting Language (XBRL) format for the submission of operating company financial statement information and fund risk/return summary information. The amendments become effective 30 days after publication in the Federal Register (likely by the middle of August 2018) but provide a phased-in compliance period. Our Legal Update summarizes the new requirements and offers timing and other practical considerations.