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 Healthcare Costs in Retirement Without a solid approach, healthcare expenses may add up quickly and potentially alter your spending. The Sequence of Returns A look at how variable rates of return impact investors over time. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name.