The amount shouldn't matter to this discussion. The client normally relies on the 7 bday safe harbor (deemed to be segregated at the earliest date), the transaction in question took 8 bdays due to unusual circumstances. The question is, did the unusual circumstances cause a small delay during the 7 bday window to make it 8 bdays, or was the 8th bday the earliest time it could be deposited due to the unusual circumstances? If its the former, it should technically be reported on the 5500. If it is the latter, I think you have a reasonable argument for calling the deposit timely and leaving it off the 5500.