I'm guessing you mean social security taxes. Medicare is 1.45 I believe. Did you ever get this resolved? I need to check my w-2 now as it probably is wrong as well if yours is. FedEx has to match the 6.2% so if it is taking more out, that is less out of pocket for them to pay. Based on my paystub from today 6.4 came out for social security and 1.5 for Medicare. Seems awfully funny