Payroll Computations, Records, and Payment Determining social security withholding. The monthly salaries for December and the year-to-date earnings of the employees of Canza Consulting Company as of November 30 follow. December Year-to-Date Earnings Employee No. Salary through November 30 1 2 $ 9,900 $ 98,900 10,000 3 10,709 4 10,000 73,000 106,800 100,000