Mental Health America of Illinois
Group exemption number 2127 · Oak Park, IL. When this group’s Form 15644 is due, and what the IRS file lists for it.
IRS EO BMF, posted Oct 13, 2026
I run the central office
You decide whether to add a chapter or terminate the group exemption, and file it before the deadline below.
I’m a chapter, club or post officer
Your central office files Form 15644 for the whole group. Your own job is your chapter’s yearly IRS return, usually the 990-N e-Postcard, unless your central office includes you in its group return.
Opens your email with this page’s link filled in. You choose who to send it to.
Deadlines for this group
Action needed before the cleanup deadline
90 days left
The IRS file shows no chapters under this group exemption; check whether that matches your records. A group with no chapters whose letter existed on Jan 20, 2026 must add at least one or terminate the group exemption before Jan 22, 2027 (Rev. Proc. 2026-8 §12.02(2)(b)). Ask your adviser which applies.
Then the yearly Form 15644 window
–
160 days until it opens
Facts from the IRS file
- Group exemption number (GEN)
- 2127
- Central organization
- Mental Health America of IllinoisName in IRS file: MENTAL HEALTH AMERICA OF ILLINOIS · EIN 37-0794769
- Location in the IRS file
- Oak Park, IL
- Chapters on file
- 0Local chapters listed under this group exemption in the IRS file (the IRS calls them subordinates)
- Central organization’s tax-exempt category
- 501(c)(3)The central’s own 501(c) paragraph. Its chapters can be under a different one (Rev. Proc. 2026-8 §4.03(2)(a)). Under the new rules all chapters must share one paragraph; groups whose letter existed on Jan 20, 2026 have until Jan 22, 2027 to remove the others (§12.02(2)(e)).
- Fiscal year ends
- June 30
- Form 15644 window
- Apr 1 – May 31, 2027From 90 to 30 days before the fiscal year ends, every year
- Cleanup deadline
- Before Jan 22, 2027If you need to remove chapters, add a first chapter, or keep one group letter and terminate the others, file that before Jan 22, 2027. If your annual window is later, file it as an interim update. See the cleanup checklist.
Source: IRS EO BMF, posted Oct 13, 2026 (the IRS roster file). Window rule: Rev. Proc. 2026-8 §7.01. Plain facts from public IRS data; not tax or legal advice. Read the Form 15644 guide or the glossary.