What is FED MED/ER listed on my paycheck? FED MED/ER is the employer’s portion of Medicare tax. This tax is paid by the university on an employee’s behalf. It does not reduce your pay earnings. Related articles: What is “FED MED/EE” listed on my paycheck? Updated on October 5, 2022 Tagged: FED MED/ERMedicare Tax Was this article helpful? Yes No Need Support?Can't find the answer you're looking for?Contact Support