First,
If you are under your full retirement age, income from working over a certain amount ($21,240 in 2023) will reduce your next year's social security benefit. If you are at or over full retirement age, working does not reduce your benefit.
Second,
Income earned from working is always subject to social security tax withholding, even if you are also drawing your social security benefit. Depending on your work history, paying social security taxes might increase your benefit in future years, as the increase in lifetime social security taxes paid might cause your benefit to be recalculated.
Third,
If social security is your only income, it is non-taxable. Receiving any other kind of income (from working, or a pension, or lottery prize, etc.) can cause your social security benefit to be treated as taxable income. Turbotax will handle this automatically.
