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 Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions. Is Term Life Insurance for You? Term insurance is the simplest form of life insurance. Here's how it works. Emotional vs. Strategic Decisions Information vs. instinct. Are your choices based on evidence of emotion?