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 Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared? From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. Inflation and the Real Rate of Return Learn about the role of inflation when considering your portfolio’s rate of return with this helpful article.