This guide outlines the lessons learned in 2023 regarding the implementation of iXBRL proxy mandates. It describes the challenges faced by issuers, particularly in reconciling adjustments in tabular formats and managing the workload associated with XBRL tagging. The document emphasizes the need for proactive planning and coordination among functional teams to integrate XBRL tagging into the proxy drafting process effectively. Additionally, it details the SEC's mandate for XBRL in proxy filings, highlighting its role in enhancing corporate transparency and facilitating structured financial information presentation. The guide also addresses upcoming regulatory changes for 2024, including new requirements for compensation clawbacks and insider trading disclosures, which will necessitate tagged iXBRL reporting. The document aims to provide issuers with the necessary insights to navigate these evolving requirements and ensure compliance with SEC mandates.