NO not optional at all UNLESS you are covered by a similar plan of retirement and insurance plan when working for some government JOBs or a clergy religion that has choose to be covered some other plan or way also by using the correct form for that purpose and time in their life.OK
The (OASDI) Old Age Survivor and Disability Insurance (FICA) (social security and Medicare taxes) all mean the same tax for social security benefits (SSB or SSDI). All mean the same thing.
What does /EE represent or is supposed to mean that you have enclosed above?
FICA amounts would be required to be withheld before deductions are withheld out of your Gross wages and earning for each pay period during the tax year RIGHT.
FICA stands for "Federal Insurance Contributions Act." It’s the tax withheld from your salary or self-employment income that funds the Social Security and Medicare programs.
Hope that you find the above enclosed information useful. 07/10/2013