Short answer: Socil Security, Yes - Pension, Depends :-)Long answer: If you are employed in the United States of America and your employer is an American Business your employer has to pay even more than your gross income. Your gross income will always include Social Security but Pension income is a different thing and really depends if you are employed by either the government or if your employer offers a pension plan.Many employers offer a match for your 401k contribution which basically is free money for your pension.This is only my personal knowledge and the best way to figure out the different 401k matches, retirement plans, social security/Medicare/workers insurance is by bringing this up to your future employer before signing a contract.