OBJECTIVES: Binge Eating Disorder (BED) recently moved, with slight modification, from the DSM-IV appendix to a fully recognized disorder in DSM-5. There is limited information on the impact of BED on productivity and social functioning.  One cross-national epidemiological study reported BED was associated with an increased number of days of role impairment. We report here the associations of DSM-5 defined BED, with work productivity and functional impairment in the work/school, social and family life domains. METHODS: An Internet survey of a representative sample of US adults, conducted in fall, 2013, included questions related to demographics, general health, psychiatric comorbidities, assessment for DSM-5 criteria for BED, the Work Productivity and Activity Impairment questionnaire (WPAI) and the Sheehan Disability Scale (SDS). SDS and WPAI were compared (BED vs no BED groups) via ANOVA. RESULTS: Among 22,397 respondents, 344 (1.5%) participants (242 women and 102 men) met full DSM-5 criteria for BED, 1,616 (7.2%) reported overeating with loss of control but not meeting DSM-V criteria for BED.  The remainder of the respondents, 20,437 (91.3%), may have reported overeating but no other BED symptoms. Relative to those with no BED, those with BED had higher mean[SD] impairment on SDS work/school  (3.86[3.62]) vs 1.01[2.21], p<0.001), social life (5.29[3.49] vs 1.22[2.33], p<0.001) and home/family life (4.89[3.44] vs 1.18[2.26], p<0.001). As measured by WPAI, those with BED, compared to those in the no BED group, had higher mean[SD] scores for absenteeism (9.59[19.97] vs 2.90[12.95]), presenteeism (30.00[31.64] vs 10.86[20.07]), work productivity loss (33.19[33.85] vs 12.60[23.22]), and activity impairment (43.52[34.36] vs 19.94[27.22]) respectively (p<0.001 for all).  CONCLUSIONS: This is the first large population study to examine the association of BED, using DSM-5 criteria, with work productivity and daily functioning. Results suggest that those with BED experience considerable impairment in functioning and work productivity relative to those without BED.