@Robert ******
. If you go after the due date, you do not get extra days. Your report is stamped 90 days from date it was due. We have gone a day late due to holiday & office closed and reports are always stamped 90 days from and including date on last report. Also your 90 day report dates do not have to match your Retirement Extension due date. The Retirement Extension is always due on the same month, day each year. It is best to go early for them in case there is a problem. You cannot go late for Extensions. If there is an issue or they ask for more info, etc, if not done by date due, you will lose your extension and have to start over.