Treatment of "lost opportunity costs" for late deposits

[Guest lindamichals]

I've searched on this question, but did not find a clear answer. Because the EBSA now offers excise tax relief when submitting to VFCP, I'm not asking about that. I need to know how does the employer treat the lost opportunity costs he deposits in regards to:

1) the plan - contribution or gain?

2) his corporate tax return - expense or deduction?

Thank you