A small employer in Oregon is one that employees (on average during the prior calendar year) 1-50 full-time employees, including full-time equivalent employees. A prescribed calculation determines the number of full-time and full-time-equivalent employees. Companies with a common owner or that are otherwise related under certain rules of section 414 of the Internal Revenue Code are generally combined and treated as a single group. 

Small-group employers may purchase coverage at any point throughout the year for a policy effective date that is the first of the month following submission of a complete Group Application by the due date.

During a limited annual open enrollment (November 15th- December 15th, 2017) there will be a Special Enrollment Period (SEP) that allows small-group employers, who otherwise would not meet the employer contribution or group participation rules, to sign up for employee health benefits.