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 Is a Variable Annuity Right for Me? Pundits go on and on about how “terrible” or “wonderful” annuities are, but they never talk about whether annuities are right. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be.