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 Emerging Market Opportunities What are your options for investing in emerging markets? Earnings for All Seasons Earnings season can move markets. What is it and why is it important? It May Be Time for a Financial Checkup It’s never a bad time to speak with your financial professional about changes in your situation.