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 Making a Charitable Contribution There are benefits and limitations when you decide to donate stock. A Meal for All Generations When it comes to generational differences, knowing the facts can be difficult. Life Insurance Myths: Debunked Whether you have life insurance through your work or are retired it pays to know the truth about life insurance coverage.