Is there a law that forces an employee to pay into social security?
<p>When an employee receives a paycheck in the United States, one of the deductions from the check is social security. I once tried to get this removed from my paycheck and the payroll company told me that they can not do this. Due to this, I was wondering if there is some sort of law that requires employees to pay Social Security?</p>

<p>There sure is: the Federal Insurance Contributions Act (FICA).  See <a href="https://www.law.cornell.edu/uscode/text/26/3101" rel="noreferrer">26 USC 3101</a>.</p>

<blockquote>
  <p>In addition to other taxes, there is hereby imposed on the income of every individual a tax equal to 6.2 percent of the wages (as defined in section 3121(a)) received by the individual with respect to employment (as defined in section 3121(b)).</p>
</blockquote>

<p>Moreover, your employer is required to withhold this tax from your wages.  See Section 3102.</p>

united-states employment