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 Medicare vs. Medicaid The terms Medicare and Medicaid sound similar but are two very different things. Learn the differences in this informative article. Split Annuity Strategy Here's one strategy that combines two different annuities to generate income and rebuild principal. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain.