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 The Fed and How It Got That Way Here is a quick history of the Federal Reserve and an overview of what it does. Risk Tolerance: What’s Your Style? Learn about what risk tolerance really means in this helpful and insightful video. Getting a Head Start on College Savings A few strategies that may help you prepare for the cost of higher education.