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 Question Thank you! Oops! Related Content Setting Your Family’s Financial Values Set your family's financial values; cast a vision for the future. Talk to your parents and kids. Discuss all options. Risk Perspective Is it possible to avoid loss? Not entirely, but you can attempt to manage risk. Should You Borrow from Your 401(k)? Does it make sense to borrow from my 401(k) to pay off debt or to make a major purchase?