Details of solo 401k plans | Vanguard
https://investor.vanguard.com/accounts-plans/small-business-retirement-plans/individual-solo-401k
WebAt this time, Vanguard will not be offering the Roth Employer option in our Individual 401(k). Employee contribution limits Employees can defer 100% of their compensation* up to $22,500 for the 2023 tax year ($30,000 for employees age 50 or older) and $23,000 for the 2024 tax year ($30,500 for employees age 50 or older).
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