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 Strategies for Managing Student Loan Debt Five strategies for managing your student debt. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. And the Executor Is The right executor may help ensure the distribution of your assets is done with as little upheaval as possible.