Apparently it's possible to request a 3 month extension to the filing date, and then, if there is a reason, another 3 month extension. If both are used, the filing date becomes November 15.
The IRS apparently frowns on reporting after the election, however:
IRS Acts to Enforce Reporting and Disclosure by Section 527 Political GroupsIR-2004-110, Aug. 19, 2004
WASHINGTON The Internal Revenue Service announced today new steps to improve reporting and disclosure by tax-exempt section 527 political groups.
The new initiative will include contacting section 527 political groups whose filings appear to be incomplete, were filed late, or were amended and are materially different from the original filing. The fact that a group is not contacted at this time does not mean that the groups reports have been accepted as correctly filed.
The initiatives launch is timed in advance of key upcoming filing dates so that correct information is available to the public as intended by Congress.
[snip]
The purpose of section 527 groups is to engage in political activities. Under section 527 of the Internal Revenue Code, as modified in June of 2000 and November 2002, certain political groups must periodically file public disclosure reports with the IRS, rather than the Federal Election Commission. The statute requires these organizations to report their contributions and disbursements so that their support and operations are in the public domain in advance of elections.
"Our" groups seem to want to wait until after the election to release their information.
Best I can tell from what we've found, it's because they really aren't doing that much to influence the election with the money they collect.
We'll see if the IRS really acts on that....
Hmmmmmmmmmmmm................................