A separate provision of the Affordable Care Act requires certain employers to sponsor health coverage for their workers. In general, any company with 50 or more employees, also known as Applicable Large Employers (ALEs) under the health care law, must offer minimum essential coverage. These companies are required to send their employees and the IRS a different form, called the 1095-C, detailing the coverage that the company made available.
Self-insured companies with more than 50 employees, then, are actually required to send covered workers both a 1095-B and a 1095-C. In such cases, the law allows the employer to combine the information onto a single 1095-C form.