Contributions to a retirement plan can only be made from compensation, which, in the case of a selfemployed individual, is earned income. Explore your options and find a tax-advantaged small business plan as a self-employed professional, entrepreneur, or business owner.Learn more about retirement options as an entrepreneur, ways to create additional retirement income and how to plan accordingly. 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. Solo 401(k) is a retirement saving and investment plan employers can offer that provides employees a tax deferral on money contributed. Retirement income, pensions, and annuities can change the way you file your taxes. The tax advantage savings plans will get you closer to your retirement goal. Your S Corp will not benefit from a Roth or Traditional IRA. Lewis and Clark College has restated the Lewis and Clark College Defined Contribution Retirement Plan and Tax Deferred.