Why do I have to pay Medicare every 3 months if they have been taking insurance from my paystub? FED MED/EE (Medicare tax) is independent of personal or private health care insurance through the state health plan or health care exchange (ACA). All employees are required to pay Medicare tax. Related article: What is FED MED/EE listed on my paycheck? Updated on November 22, 2021 Tagged: employment taxFED MED/EEMedicareprivate health insurance Was this article helpful? Yes No Need Support?Can't find the answer you're looking for?Contact Support