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 All Muni Bonds Are Not Created Equal Gaining a better understanding of municipal bonds makes more sense than ever. The Real Cost of a Vacation Home What if instead of buying that vacation home, you invested the money? Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement.