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 The Value of Insuring Against Life’s Risks Building wealth requires protection from the forces of wealth destruction. Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions. Healthcare Costs in Retirement Without a solid approach, health care expenses may add up quickly and potentially alter your spending.