Small tax-exempt organizations (with annual gross receipts less than $50,000) may have to file electronic Form 990-N (the e-Postcard), unless you file the full Form 990 or 990-EZ. The form is due every year on the 15th day of the 5th month. Failure to file for three consecutive years will result in the automatic revocation of tax-exempt status upon the filing date of the third year. This filing requirement does NOT include churches, associations of churches or organizations that are included in a group exemption.