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 Message Thank you! Oops! Related Content A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult. Mastering Mobile Lingo Do you understand these common mobile slang terms? Making a Charitable Gift Did you know that there are benefits and limitations when you decide to donate stock? Learn more about your options.