Your employer will begin withholding the additional Medicare tax once your wages reach a certain amount. Your filing status isn't important for this. Withholding starts when your wages and other compensation are more than $200,000 for the year.

What is the Medicare surtax for 2021?

In 2021, the Medicare tax rate is 2.9%, which is split between an employee and their employer. Self-employed individuals are responsible for both portions of Medicare tax but only on 92.35% of business earnings. There are two additional Medicare surtaxes that apply to certain high earners.

What is the Medicare surtax for 2020?

The Federal Insurance Contributions Act (FICA) tax rate, which is the combined Social Security tax rate of 6.2% and the Medicare tax rate of 1.45%, will be 7.65% for 2020 up to the Social Security wage base. The maximum Social Security tax employees and employers will each pay in 2020 is $8,537.40.