Form 15644 windows opening in August 2027
Groups whose yearly Form 15644 window opens in August 2027: usually those whose fiscal year ends in November. Useful for planning a season of filings.
IRS EO BMF, posted Oct 13, 2026
30 groups. Sorted by chapters on file, largest first.
- Free & Accepted Masons of California
- Grand Lodge Af & Am of Mo
- Kentucky Farm Bureau Federation
- Gamma Theta Upsilon
- Iowa Farm Bureau Federation
- Omega Psi Phi Fraternity
- Retired Public Employees
- Farm Bureau Federation Mississippi
- Oklahoma Farm Bureau
- New York Farm Bureau
- Order of Eastern Star of Oklahoma
- Grand Lodge of Free and Accepted Masons of the State of Nevada
- California Cattlewomen Inc
- Most Worshipful Prince Hall Grand Lodge F&am DC and Subordinates
- Continental Society Daughters of Indian Wars
- Wyoming Farm Bureau Federation
- International Association of Hospitality Accountants
- North American Butterfly Association Inc
- Colored Pencil Society of America
- Young Professionals in Transportation
- Rural Communities Housing Development Corporation
- Oregon Small Woodlands Association
- National Black Child Development Institute Inc
- American Cowboys Team Roping Association
- Friends of the Enoch Pratt Free Library Inc
- Georgianna Thomas Grand Chapter
- Florida Chiropractic Association Inc
- Asian American Insurance and Financial Professional Association
- Greater Akron Baseball Hall of Fame Inc
- Stratford Shakespearean Festival of America