Form 15644 windows opening in January 2027

Groups whose yearly Form 15644 window opens in January 2027: usually those whose fiscal year ends in April. Useful for planning a season of filings.

IRS EO BMF, posted Oct 13, 2026

55 groups. Sorted by chapters on file, largest first.

Moose International IncGroup 0002Mooseheart, IL2,056 chapters on fileWindow Jan 30 – Mar 31, 2027
Beta Alpha Psi National CouncilGroup 2498Bowling Green, KY303 chapters on fileWindow Jan 30 – Mar 31, 2027
Sweet Adelines International CorporationGroup 1321Tulsa, OK300 chapters on fileWindow Jan 30 – Mar 31, 2027
Links IncGroup 1520Washington, DC286 chapters on fileWindow Jan 30 – Mar 31, 2027
International Alliance Theatrical Stage EmployeesGroup 0386New York, NY264 chapters on fileWindow Jan 30 – Mar 31, 2027
Chi Omega FraternityGroup 0273Memphis, TN223 chapters on fileWindow Jan 30 – Mar 31, 2027
National Young Mens Service LeagueGroup 5492Plano, TX200 chapters on fileWindow Jan 30 – Mar 31, 2027
Free & Accepted Masons of WashingtonGroup 0419University Pl, WA145 chapters on fileWindow Jan 30 – Mar 31, 2027
Garden Club Federation of PennsylvaniaGroup 4352Troy, PA114 chapters on fileWindow Jan 30 – Mar 31, 2027
Grand Chapter of Pennsylvania Order of the Eastern Star IncGroup 3413Elizabethtown, PA105 chapters on fileWindow Jan 30 – Mar 31, 2027
Supreme Temple Daughters of the NileGroup 0525Chicopee, MA105 chapters on fileWindow Jan 30 – Mar 31, 2027
Daughters of IsabellaGroup 0997New Haven, CT100 chapters on fileWindow Jan 30 – Mar 31, 2027
High Twelve InternationalGroup 9422Trevose, PA99 chapters on fileWindow Jan 30 – Mar 31, 2027
Psi Iota XI SororityGroup 1133Indianapolis, IN99 chapters on fileWindow Jan 30 – Mar 31, 2027
Ancient Free & Accepted Masons of Oregon Grand LodgeGroup 1101Forest Grove, OR92 chapters on fileWindow Jan 30 – Mar 31, 2027
Grand Chapter of the Order of the Eastern Star of North CarolinaGroup 0471Garysburg, NC86 chapters on fileWindow Jan 30 – Mar 31, 2027
M W Prince Hall Grand Lodge Free and Accepted Masons of LouisianaGroup 8091Baton Rouge, LA74 chapters on fileWindow Jan 30 – Mar 31, 2027
Order of the Eastern Star of Mississippi Grand ChapterGroup 0466Coldwater, MS62 chapters on fileWindow Jan 30 – Mar 31, 2027
National Association of Legal Secretaries IncGroup 1377Indianapolis, IN57 chapters on fileWindow Jan 30 – Mar 31, 2027
Order of the Eastern Star of South Carolina Grand ChapterGroup 2181Charleston, SC56 chapters on fileWindow Jan 30 – Mar 31, 2027
National League of American Pen Women IncGroup 2322Washington, DC46 chapters on fileWindow Jan 30 – Mar 31, 2027
Boys Team Charity IncGroup 5359San Jose, CA41 chapters on fileWindow Jan 30 – Mar 31, 2027
Nebraska Congress of Parents and TeachersGroup 9393Bellevue, NE33 chapters on fileWindow Jan 30 – Mar 31, 2027
Ancient Free & Accepted Masons of South Dakota Grand LodgeGroup 2214Sioux Falls, SD30 chapters on fileWindow Jan 30 – Mar 31, 2027
Order of the Eastern Star of Idaho Grand ChapterGroup 0469Moscow, ID29 chapters on fileWindow Jan 30 – Mar 31, 2027
Most Worshpful Prince Hall Grnd Ldg F&am Calif & Hawaii IncGroup 1581Los Angeles, CA24 chapters on fileWindow Jan 30 – Mar 31, 2027
National Society Daughters of the British Empire in the UnitedGroup 5374Kansas City, MO24 chapters on fileWindow Jan 30 – Mar 31, 2027
State Federation of Porcelain Art Clubs of TexasGroup 1693Abilene, TX23 chapters on fileWindow Jan 30 – Mar 31, 2027
Royal and Select Masters of PennsylvaniaGroup 0481Harrisburg, PA22 chapters on fileWindow Jan 30 – Mar 31, 2027
Legal Professionals IncGroup 4091Granite Bay, CA21 chapters on fileWindow Jan 30 – Mar 31, 2027
Kappa Delta Phi National SororityGroup 5223Liberty, MO19 chapters on fileWindow Jan 30 – Mar 31, 2027
Grand Chapter Royal Arch Masons of WashingtonGroup 2292Shoreline, WA18 chapters on fileWindow Jan 30 – Mar 31, 2027
Maryland Ornithological Society IncGroup 5702Baltimore, MD15 chapters on fileWindow Jan 30 – Mar 31, 2027
Order of the Eastern Star of Georgia Prince Hall Grand ChapterGroup 1979Riverdale, GA15 chapters on fileWindow Jan 30 – Mar 31, 2027
Oklahoma Society of Certified Public AccountantsGroup 7130Oklahoma City, OK13 chapters on fileWindow Jan 30 – Mar 31, 2027
United Ancient Order of DruidsGroup 0184Santa Rosa, CA11 chapters on fileWindow Jan 30 – Mar 31, 2027
Royal Arch Masons of ConnecticutGroup 2003Stratford, CT10 chapters on fileWindow Jan 30 – Mar 31, 2027
Gyro InternationalGroup 0861Painesville, OH9 chapters on fileWindow Jan 30 – Mar 31, 2027
Garden Club of South Carolina IncGroup 5876Columbia, SC8 chapters on fileWindow Jan 30 – Mar 31, 2027
Royal Arch Masons of New Hampshire Grand LodgeGroup 0086Derry, NH8 chapters on fileWindow Jan 30 – Mar 31, 2027
Royal Arch Masons of Vermont Grand ChapterGroup 0191Barre, VT8 chapters on fileWindow Jan 30 – Mar 31, 2027
Society of Petrophysicists and Well Log Analysts IncGroup 7067Houston, TX7 chapters on fileWindow Jan 30 – Mar 31, 2027
Order of the Eastern Star of Delaware Grand ChapterGroup 0474Milton, DE5 chapters on fileWindow Jan 30 – Mar 31, 2027
Great Council of New Jersey Improved Order of Red MenGroup 8195LTL Egg HBR, NJ4 chapters on fileWindow Jan 30 – Mar 31, 2027
Royal & Select Masters of Vermont Grand CouncilGroup 0196Barre, VT4 chapters on fileWindow Jan 30 – Mar 31, 2027
National Association of Health CoordinatorsGroup 9377Rockford, IL3 chapters on fileWindow Jan 30 – Mar 31, 2027
Fredonia Volunteer Fire Department IncGroup 9252Fredonia, NY2 chapters on fileWindow Jan 30 – Mar 31, 2027
FV Cemetery Company IncGroup 3216Roanoke, VA2 chapters on fileWindow Jan 30 – Mar 31, 2027
Navy Mothers Clubs of America IncGroup 0862Vancouver, WA2 chapters on fileWindow Jan 30 – Mar 31, 2027
Most Worshipful Prince Hall Grand Lodge F & a M of Wisconsin IncGroup 9413Milwaukee, WI1 chapters on fileWindow Jan 30 – Mar 31, 2027
Documentary Educational Resources IncGroup 9165Watertown, MA0 chapters on fileWindow Jan 30 – Mar 31, 2027
Grand Royal Arch Masons of MaineGroup 1716Morrill, ME0 chapters on fileWindow Jan 30 – Mar 31, 2027
League of Women Voters of New Mexico IncGroup 2447Fairacres, NM0 chapters on fileWindow Jan 30 – Mar 31, 2027
NAMI Georgia IncGroup 8543Atlanta, GA0 chapters on fileWindow Jan 30 – Mar 31, 2027
Society of Louisiana Certified Public AccountantsGroup 8558Metairie, LA0 chapters on fileWindow Jan 30 – Mar 31, 2027