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 Diversification, Patience, and Consistency Three important factors when it comes to your financial life. How Financial Professionals Are Compensated Read this overview to learn how financial advisors are compensated. Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them.