The financial exploitation of older adults has garnered the attention of society as well as state and federal governments in a way that elder abuse has never been able to achieve. It is frequently asserted that financial exploitation deserves this attention in part because it is the most prevalent form of elder abuse. This article systematically reviews the measurement of financial exploitation in comparison with other forms of elder abuse and concludes that its measurement is considerably more variable than other forms of abuse. Consequently, improvements in the measurement of financial exploitation are warranted.