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 The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared? The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out. Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles.