If one owner has two or more corporations, what rules are used to limit / calculate the 401K profit share allowed in each corporation? Assume a Safe Harbor 401k in each corporation.
I am fairly sure that the rules do not allow the owners to put profits into one corporation and pay out the profit share there exclusively. At the same time, one corporation might be profitable and the other not, so there has to be some flexibility in which corporation can have the larger profit share.
I am guessing that there must be some rule here that forces the common owner to treat the corporations and their employees as a combined entity, just for purposes of evaluating some 401K profit share fairness rules. But what are the details on that?