Voluntary error reporting systems (VERS) are an indispensable tool for identification, analysis, and prevention of clinical errors, but they rely on staff to report errors consistently and equitably. This review highlights how the types and frequency of error reporting vary by race, gender, language, and age. Minoritized patients are more likely to experience adverse events but are less likely to have events reported. Women and non-white staff are more likely to reported—by both patients and colleagues—for low severity events.