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 Why Everyone Needs an Estate Strategy Do you have an estate strategy? You should. Is Term Life Insurance for You? Term insurance is the simplest form of life insurance. Here's how it works. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.