The IRS will shut down their E-Filing system on at 1pm August 31, 2012 for maintenance over the Labor Day Holiday Weekend. The E-Filing system will resume on at noon on Tuesday, September 4, 2012.
This is taken from the postcard that will be mailed from the IRS to the E-Filers on August 20th:
Form 2290, Heavy Highway Vehicle Use Tax Return, is due by August 31, 2012
Due to IRS facility maintenance taking place over the Labor Day weekend, you will be unable to electronically file your Form 2290 after 1 p.m. Eastern Daylight Time on August 31, 2012. If you intend to file your Form 2290 electronically, please do so prior to 1 p.m. EDT on August 31, 2012, as processing of the form will not begin again until noon EDT on September 4, 2012. If you do not electronically file your return by 1 p.m. EDT on August 31, 2012, your return will be considered timely filed provided the IRS receives the electronically filed Form 2290 by September 7, 2012. This facility maintenance will not affect your ability to file a paper Form 2290. If your Form 2290 reports 25 or more vehicles, you must file electronically.
Note if you are paper filing, the deadline remains August 31, 2012 and all returns must be postmarked by that date to be considered on time.
