If you have a C corporation that files Form 1120, you only report compensation (including wages, bonuses, and taxable fringe benefits), dividends, and other taxable distributions received. The corporation itself pays tax on its profits. However, if you have an S corporation, in addition to reporting compensation and dividends, you also report your share of corporate profits on Schedule E of Form 1040. The amount reported on Schedule E is taken from Schedule K-1 issued to you by the S corporation.
IRA-type plan set up by an employer, rather than the employee. Salary-reduction contributions may be allowed to plans of small employers set up before 1997.