Pathological hoarding results in clutter that precludes normal activities and creates distress or dysfunction. It may lead to an inability to complete household functions, health problems, social withdrawal, and even death. The aim of this study was to describe the validation of the Brazilian version of the hoarding assessment instrument, the Saving Inventory-Revised. Sixty-five patients with obsessive-compulsive disorder (OCD) and 70 individuals from the community were assessed using the Structured Clinical Interview for the Diagnosis of DSM-IV (clinical sample), the Saving Inventory-Revised, the Obsessive-Compulsive Inventory-Revised, the Beck Depression Inventory, and the Beck Anxiety Inventory. The Brazilian version of the Saving Inventory-Revised exhibited high internal consistency (Cronbach's alpha = .94 for OCD and .84 for controls), high to moderate test-retest reliability and, using the hoarding dimension of the Obsessive-Compulsive Inventory-Revised as a reference point, high to moderate convergent validity. The Saving Inventory-Revised total scores also correlated significantly with comorbid anxiety and depressive symptoms.