What is the due date for not for profit tax returns?

If you’re an exempt organization (non profit), then tax FORM 990, 990-EZ, and 990-PF are due by the 15th day of the 5th month after your organization’s year-end.  

So, if your organization has a year-end date of December 31, your tax return due date is May 15.  You can request a 3 month automatic extension, then apply for an additional 3 month extension.  You will need to complete FORM 8868 for this extension.

For more information, and to find related forms, visit the IRS website pages for Nonprofits and Charities.