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Solo 401(k) contribution calculator

Both layers — employee deferral plus employer contribution — from your compensation. Full context in the guide. Uses 2026 limits ($24,500 deferral; $72,000 combined; $8,000 catch-up at 50+, $11,250 at ages 60–63); indexed annually.

Employee deferral
Employer contribution
Estimated maximum total

Educational estimate only — simplified assumptions, not tax advice, and not a substitute for a calculation on your actual return. Limits and rates change annually.

Want the salary + retirement math as one plan?

The S-corp salary and the Solo 401(k) are a single optimization — we run them together on your numbers.

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