Contributions to a retirement plan can only be made from compensation, which, in the case of a selfemployed individual, is earned income. In this post, we identify the best 5 retirement plans for SCorporations.We will also show you why a SEP might not be the best plan. S Corps must follow certain rules for retirement plans and contributions. Learn how to correctly handle S Corp retirement contributions. Scorp owners, and their spouses have a vast array of retirement plan options to tap into. A shortlist of the most common retirement plans include: Unfortunately for S-Corp owners, only W2 income can be recognized for qualified retirement plan purposes (not the pass-through income). There are a lot of options with retirement planning within your LLC or S-Corp. Sole proprietors, partnerships, and corporations, including S corporations, can set up SEPs.