This report presents the results of Milliman’s 2021 annual survey of the U.S. individual disability income (IDI) insurance market. Fifteen insurance companies provided data and other information about new business sold from 2016 through 2020, sales distributions, underwriting requirements, product offerings and pricing, favorable and unfavorable trends, and opportunities and obstacles affecting the IDI market. This year’s report also surveys companies’ reactions to recent reports released by the Individual Disability Experience Committee (IDEC) of the Society of Actuaries (SOA), which discuss IDI claim incidence and termination experience trends over the 2006 to 2014 time period.