We need more specific details. Run the Payroll Summary Report for one pay date. In the beginning of the year, Employer and Employee Social Security should match (7.65% each), and Employer/Employee Medicare should match (1.45% each). Beyond this, nothing else is supposed to match, and each of these has a wage base that will change the Employee/Employer amounts over the course of the year for higher-paid employees. By that time, later in the year typically, they also no longer Match. So, are you sure what you are looking at needs to match?