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 Yours, Mine, and Ours: Estate Strategies for Second Marriage Second marriages are a trigger event to revisit any existing estate strategies. The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. Retirement Accounts When You Change Your Job This video discusses issues related to your retirement accounts when you move on from your job.