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 Questions to Ask About Medicare Take the guesswork out of your IEP or SEP with this helpful article. Reviewing Your Life Insurance Needs Learn how the review process works and how it may help you better understand your Life Insurance. Emotional vs. Strategic Decisions Information vs. instinct. Are your choices based on evidence of emotion?