Solo 401k Contribution limits

[agoldkuhle]

Is this the same place where you would enter a solo 401k that is managed through an s-corp? Or is that information captured in the 1120-S somewhere? I am using TT business 2021 for the S-corp and TT Home and business for rental property income and farm income.  It never seems clear to me which hat I am wearing employer or employee...perhaps that distinction is relevant to contribution amounts?

[dmertz]

With an S-corp, the solo 401(k) must be established under the S-corp and contributions deposited by the S-corp.  The S-corp takes the deduction for the employer portion and for the wages that were deferred to the plan by the individual as employee of the S-corp.