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 Why Everyone Needs an Estate Strategy Do you have an estate strategy? You should. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. A Look at Whole Life Insurance Whole life insurance remains in force as long as you remain current with premiums. Here's how it works.