Only earned income, your wages, or net income from self-employment is covered by Social Security. If money was withheld from your wages for “Social Security” or “FICA,” your wages are covered by Social Security. This means you are paying into the Social Security system that protects you for retirement, disability, survivors, and Medicare benefits.
Pension payments, annuities, and the interest or dividends from your savings and investments are not earnings for Social Security purposes. You may need to pay income tax, but you do not pay Social Security taxes.
See Also
Qualified Dividends - Fidelity