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 Understanding the SECURE Act 2.0 A timeline covering a few of the major provisions of the SECURE Act 2.0. Behavioral Finance An amusing and whimsical look at behavioral finance best practices for investors. Personal Finance Tips for Military Families Military families face unique challenges, making personal finance even more critical.