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 Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Ways to Supplement Your Medicare Coverage There are numerous ways to supplement your Medicare insurance coverage. This article helps you explore your options.