EIN for Solo 401k Trust

The EIN number that was assigned to me during the set up of my Solo 401k account, it appears to be assigned to my trust. I thought it was supposed to be assigned to my business.

Answer:

The EIN number is for your trust. As you use your Solo 401k, it is the Solo 401k trust that is transacting and acquiring and dealing with assets, not your business. Therefore, your trust EIN number will be associated with those transactions.  Your business should have a separate EIN.