The IRS has posted a full set of
Frequently Asked Questions (FAQs)
about the new 990-N (e-Postcard) filing requirement. Listed below are some key excerpts.
Who must file Form 990-N (e-Postcard)?
... most small tax-exempt organizations whose gross receipts are normally $25,000 or less must file Form 990-N, Electronic Notice (e-Postcard) for Tax-Exempt Organizations not Required To File Form 990 or 990-EZ. Before this law was enacted, these small organizations were not required to file annually with the IRS. The first filings are due in 2008 for tax years ending on or after December 31, 2007.
What organizations are ineligible to file the e-Postcard?
...Tax-exempt organizations with annual gross receipts that are normally greater than $25,000 must file Form 990 or Form 990-EZ...
How do I file the e-Postcard?
The e-Postcard is filed electronically by answering fewer than ten questions in an online form ....The form must be completed and filed electronically. There is no paper form.
How much does it cost to file the e-Postcard?
Filing the e-Postcard is free....
When is the e-Postcard due? How often do I need to file?
The e-Postcard is due every year by the 15th day of the fifth month after the close of your tax year (usually the same as your accounting period). For example, if your tax year ended on December 31, 2007, the e-Postcard is due May 15, 2008.
If you do not file your e-Postcard on time, the IRS will send you a reminder notice but you will not be assessed a penalty for late filing the e-Postcard. However, an organization that fails to file required e-Postcards (or information returns – Forms 990 or 990-EZ) for three consecutive years will automatically lose its tax-exempt status. The revocation of the organization’s tax-exempt status will not take place until the filing due date of the third year.
There's more - and the above are only excerpts. I deleted some of the text not particularly relevant to PTOs.