Sole 401K for Business Owners with No Income

[Etel Garateguy]

My husband owns a new company with no employees and makes $0 income from it at the moment. Am I allowed to contribute to his solo 401K as his working spouse? I work for another company independent from the one he owns. Thank you for the feedback.

[Carl Fischer]

@Etel Garateguy

 You should be able to contribute to a traditional or Roth ira for him. No to the 401k as @Ashish Acharya explained.