An impacted sinus infection is when the pressure from the sinus infection begins to affect other parts of the body, such as the teeth, the eyes and the brain. The symptoms of an impacted sinus infection are similar to that of a regular case of sinusitis but with a higher intensity of pain and discomfort.
An employer's federal payroll tax responsibilities include withholding from an employee's compensation and paying an employer's contribution for Social Security and Medicare taxes under the Federal Insurance Contributions Act (FICA).
A number of rules apply to calculating FICA withholding. 1  1. Figure out the employeeâs gross income for the pay period. This is the employeeâs entire pay before deductions. 2  2. Determine whether the employee has a pretax deduction, such as a traditional 401k plan or a section 125 medical or dental plan.