1. Internal Revenue Service
Form: Annual Return Form 990
Due Date: 4 ½ months after end of fiscal year
2. Massachusetts Attorney General
Form: Attorney General form PC and copy of IRS Form 990 or 990EZ
3. Massachusetts Secretary of State
Form: Annual Report for Nonprofit Corporations
Due Date: November 1
4. Massachusetts Department of Revenue
Form: ST-ER (Application for Sales Tax Exemption Renewal)
Due Date: Every 10 years before the expiration date of Form ST-2.