File Necessary Forms: File IRS Form 5500 each year to report the plan's status and compliance. Employee Stock Ownership Plan (ESOPs).Contributions to a retirement plan can only be made from compensation, which, in the case of a selfemployed individual, is earned income. Our Roseville and Sacramento S corps accountants can help you with tax planning, preparation, and filing for your S corporation in California. CalSavers is available to California workers whose employers don't offer a retirement plan, self-employed individuals, and others who want to save extra. We have experience establishing and overseeing a variety of qualified retirement plans and non-qualified deferred compensation plans. Gov and search for withholding requirements for updates, online tools, and more information, including: Forms and Publications Sole proprietors, partnerships, and corporations, including S corporations, can set up SEPs. Mobile businesses such as mobile auto repair, car washing or detailing, mobile food vendor; auto dismantling or repossessing. A SEP IRA is easy to set up, has low to no cost and has minimal maintenance.