This guide is designed to help applicants prepare to complete the supplemental ERAS® application. It provides an overview of the supplemental application, lists the participating specialties, and outlines the timeline for accessing and submitting the supplemental application. The guide also provides guidance and tips for completing each section and highlights evaluation results from the 2022 ERAS cycle, which included three specialties (Dermatology, General Surgery, and Internal Medicine) and over 20,000 applicants. Finally, the appendix displays all supplemental application questions and instructions.