County College of Morris is an equal opportunity and affirmative action institution and complies with Title IX, ADA and Civil Rights obligations. Quicklinks Academic Advisement
Determining Taxable Amount. If your base income exceeds the limit for your filing group, you'll have to pay taxes on some of your Social Security benefits. If you're a single filer and your base income is between $25,000 and $34,000, you'll have to pay tax on up to 50 percent of your Social Security benefits.
Calculate Social Security tax at 4.2 percent of taxable wages up to the annual wage limit of $110,100 as of the time of publication. Once the employee fulfills the yearly wage base, stop the withholding; resume it at the start of the next year.