This article reports the experience of treating low-income patients with a primary diagnosis of generalized anxiety disorder (GAD) in a public hospital in Rio de Janeiro, Brazil. At the start of the project for outpatient treatment, which included the application of a cognitive model for GAD treatment, we observed that the majority of patients presented low educational level, which made it hard for them to understand key aspects of the cognitive-behavioral based treatment offered. Therefore, important adaptations to the treatment protocol were made necessary, including the way techniques were presented and applied, the therapeutic approach used, and even the duration of sessions. Since variations of cognitive therapy are increasingly being applied in hospital outpatient clinics in countries worldwide, the objective of this article is to present the adaptations performed and promote a discussion on the possible solutions for the diffi culties faced in applying clinical psychology practice among patients with low educational and socioeconomic levels. This is a clinical study presenting an illustrative case, where adaptations to the treatment protocol were essential for the positive outcome of the case. It is concluded that, with the 1 Mailing address: Avenida Ataulfo de Paiva, 1079, sala 509,