Medicare Employee Additional Tax 2025 Notification. 1.45% for the employer and 1.45% for the employee or 2.9% total. The additional medicare tax is for high earners and is the sole financial responsibility of the employee and is not split.
In 2025, the medicare tax rate for employers and employees is 1.45% of all wages, unchanged from 2023. 6.2% social security tax on the first $168,600 of wages (6.2% x $168,600 makes the maximum tax $10,453.20), plus.