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 New Retirement Contribution Limits for 2024 A look at the new, record-high retirement contribution limits from the IRS. Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents. Tax & Estate Strategies for Married LGBTQ+ Couples Learn how to maximize your tax and estate strategy as a married member of the LGBTQ+ community.