Solo 401k Tools
Use these tools to optimize your Solo 401k planning
Contribution Calculator
Calculate your maximum allowable contributions based on your income
Determine both your employee and employer contribution limits for your Solo 401k plan. Factor in your age, income, and business structure for accurate calculations.
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Calculate Solo 401(k) and W-2 401(k) contributions side-by-side against IRS limits
Run a Solo 401(k) alongside a day-job 401(k)? This interactive calculator models contributions across every plan and enforces the shared employee deferral limit and per-plan annual additions cap — including the SECURE 2.0 age 60–63 super catch-up.
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