Many states require an e-file signature date input into the return e-file authorization form.  Some states require this date to be input before the extension can be e-filed.  (1) Make sure on the Federal Information Worksheet NY S Corp Extension is check off. (2) Go into the NY TR 579-1-CT and check the certificatin boc and then add the date down the bottom, even if no payment is due.  (3) Go into CT 5.4 Request for Six-Month Ext and make sure Freeze is checked, payment is listed, if any and the paid preparer date is completed.