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 Your Emergency Fund: How Much Is Enough? Having an emergency fund may help alleviate the stress and worry associated with a financial crisis. From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.