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 Strategies for Managing Student Loan Debt Five strategies for managing your student debt. Dog Bites and Homeowners Insurance Reviewing coverage options is just one thing responsible pet parents can do to help look out for their dogs. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next.