Self-Employed Retirement Plans Estimate the maximum contribution amount for a Self-Employed 401(k), SIMPLE IRA, or SEP. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult. What You Should Do About Insurance Following a Divorce In the face of divorce, making changes to insurance coverage may be overlooked. The Latte Lie and Other Myths Check out this video to begin separating fact from fiction.