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 Impact Investing or Philanthropy This fun piece can help your clients explore the benefits of impact investing versus founding a philanthropy. Asset Allocation Consider how your assets are allocated and if that allocation is consistent with your time frame and risk tolerance. What Is My Risk Tolerance? This questionnaire will help determine your tolerance for investment risk.