I am 69, retired and currently receive full social security benefits, can I return to work fulltime and continue receiving my social security benefits? Are there penalties involved?

Hi,

Yes, you can. There is no limit on earnings once you reach full retirement age (https://www.ssa.gov/planners/retire/whileworking2.html). There wouldn't be any penalties that I can think of, other than potential additional Social Security and income taxes.

Best, Jerry