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 Dreaming Up an Active Retirement When you retire, how will you treat your next chapter? Protection Against Uninsured Drivers You’re hit by an uninsured driver. Now what? Are you protected against financial losses? Choosing a Mortgage Selecting a mortgage isn't an easy process. Get a better understanding of how professionals make the right decisions.