Tax-exempt organization · Files a Form 5500 · State registration on file
INTERNATIONAL RETT SYNDROME FOUNDATION
4600 DEVITT DR, WEST CHESTER, OH 45246-1104
EIN
31-1682518
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Contributions are deductible
IRS · 2026-09
Foundation classification
Publicly supported charity (170(b)(1)(A)(vi))
IRS · 2026-09
IRS ruling date
2000-03
IRS · 2026-09
NTEE code
H128
IRS · 2026-09
Latest tax period on file
2024-12
IRS · 2026-09
Revenue (latest 990)
$4,813,748
IRS · 2026-09
Assets (latest 990)
$5,325,567
IRS · 2026-09
Florida registration
Active · Foreign not-for-profit corporation
FL Div. of Corporations · 2026-07-10
Florida document number
F08000001428
FL Div. of Corporations · 2026-07-10
Registered in Florida
2008-01-02
FL Div. of Corporations · 2026-07-10
Registered agent
INCORP SERVICES, INC
FL Div. of Corporations · 2026-07-10
Benefit plan 1, 2024 filing
INTERNATIONAL RETT SYNDROME FOUNDATION 401K PSP
DOL · 2025-10-15
Participants (start of year)
13
DOL · 2025-10-15