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 Finding the Balance The sandwich generation faces unique challenges. For many, meeting needs is a matter of finding a balance. Dreaming Up an Active Retirement When you retire, how will you treat your next chapter? Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.