My client just called to tell me the 5500 he mailed on the 7/15 extended deadline was just returned to him for insufficient postage. Apparently an error occurred with the postage meter that day. He has proof he sent it on the deadline.

Should he turn around and resubmit and save documentation of original filing and subsequent for notice that will be received later?

Should he try to send documentation and explanation along with filing now?

Should he use the Deliquent Filer Program?

I had this happen a few years ago.

I warned the client that it was no guarantee, but...

put the whole thing in a larger envelope (showing the original posting) with a letter saying it was mailed timely but returned and here is proof and here it is again.

That was IRS, this is DoL. I don't know what the outcome would be now but sure would like to hear.