Client neglected to mention that the ownership for their company had changed to 50/50 between Owner A and Owner B. Further, Owner B owns another company 100% and the plan's census has "always" included comp from this other company in calculating allocations. I don't think there is a controlled group, because identical ownership isn't greater than 50%; however, I think it wasn't appropriate to include comp from, essentially, an unrelated company (until 2019). I *think* what I need to do is amend their plan to include the other company as a participating employer back to at least 1/1/2019 and/or amend the plan to allow employees to participate through the comp from the other company.
Your thoughts?