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 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? Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. Insuring Your Second Home There are unique risks of owning a second home and obtaining the proper coverage may protect you from financial risk.