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 Financial Aid for Students 101 Help your college-bound child explore scholarships, grants, and more with this article on paying for higher education. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan. Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them.