An employee ' s YTD earnings records indicate the following:Total regular wages: $141,050.

Box 3 of Form W-2 is used to report the total wages subject to Social Security tax. To calculate this amount, start with the gross regular wages and add taxable non-cash benefits while subtracting only those pre-tax deductions that are exempt from Social Security withholding. Pre-tax medical insurance deductions (Section 125) are exempt from Social Security, but 401(k) deferrals are not. Additionally, the taxable value of group-term life insurance (GTL) in excess of $50,000 is considered taxable wages for Social Security purposes. Union dues are a post-tax deduction and do not affect the taxable wage base. In this scenario, the calculation is: $\$141,050.00$ (Regular Wages) + $\$53.00$ (Taxable GTL) - $\ $3,500.00$ (Medical Deduction) = $\$137,603.00$. This total is reported in Box 3, provided it does not exceed the annual Social Security wage base limit.