Tax-exempt organization ยท Files a Form 5500
WASHINGTON INTERNATIONAL SCHOOL
3100 MACOMB ST NW, WASHINGTON, DC 20008-3324
EIN
52-0822077
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
1966-08
IRS · 2026-09
NTEE code
B24Z
IRS · 2026-09
Latest tax period on file
2025-06
IRS · 2026-09
Revenue (latest 990)
$55,108,640
IRS · 2026-09
Assets (latest 990)
$207,814,414
IRS · 2026-09
Benefit plan 1, 2024 filing
WASHINGTON INTERNATIONAL SCHOOL DEFINED CONTRIBUTION RETIREMENT PLAN
DOL · 2026-06-11
Participants (start of year)
525
DOL · 2026-06-11
Plan features
code 2F2G2L2M3D2T
DOL · 2026-06-11
Plan type
Single-employer plan
DOL · 2026-06-11
Business code (NAICS)
611000
DOL · 2026-06-11
Benefit plan 505, 2024 filing
WASHINGTON INTERNATIONAL SCHOOL HEALTH & WELFARE PLAN
DOL · 2025-12-24