Which of these terms forms lists the amount of medicare taxes that were paid during the year?

You can find the amount that you paid in Medicare tax on your W-2 form that you receive at January of the following year. The amount of Wages the tax was based on is listed in Box 5 and the tax paid is in Box 6. Medicare tax is imposed upon all wages paid to an employee. Social Security Tax is limited to the first $110,100 for 2012 and $113,700 in 2013. The Medicare tax is imposed on all wages earned.