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 How Boomers and Millennials Differ The YOLO Economy is a focus on experiences over material possessions, prompting Boomers to consider a similar mindset. Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions. Retirement Plan Choices for Small Businesses Retirement choices can be intimidating. Picking the right strategy.