The Social Security tax rate is 12.4% but only half is paid by employees and only income below a certain limit is included. This article is a reprint from http://www.fool.com/retirement/2016/06/24/what-is-the-social-security-tax-rate.aspx Social Security tax is one part of the Federal Insurance Contribution Act (FICA) tax, and it is assessed at a rate of 12.4%. This is split […]