EIN Checker / Verify in Connecticut

Verify a nonprofit in Connecticut

Check any Connecticut nonprofit's IRS standing in seconds — tax-exempt status, whether contributions are deductible, revocation history, and filing recency — assembled into one plain-English verdict from IRS source data.

Free, no login. Checks IRS recognition, deductibility, revocation history and filing recency.

Connecticut nonprofits in the current IRS data

These counts are computed from the IRS Business Master File, Publication 78 and the Automatic Revocation list as published on the dates below — not estimates.

23,758
organizations registered in Connecticut
19,355
recognised as 501(c)(3)
371
currently revoked
2,862
carrying a caveat worth checking

17,336 are individually listed in IRS Publication 78 as eligible for deductible contributions, and 4,347 sit under a group exemption — legitimately deductible through a parent organization's ruling even when they do not appear in Publication 78 on their own.

The largest categories of Connecticut nonprofit

Education2,498
Religion-Related1,779
Arts Culture & Humanities1,706
Philanthropy Voluntarism & Grantmaking Foundations1,580
Human Services1,522

What this checks — and what it does not

Every verdict covers four things: IRS recognition and subsection, deductibility per Publication 78 (including group rulings), revocation history reconciled against reinstatements, and filing recency from the Form 990 e-file index and 990-N e-Postcards.

Connecticut charitable registration is not checked here. Registering with the IRS and registering to solicit donations in a state are different legal requirements, and most states require the latter. This tool evaluates federal IRS status only. For Connecticut's charity regulator, use the official directory maintained by the National Association of State Charity Officials. We also do not evaluate finances, governance or programme quality.

Common questions behind a verification

Verify a nonprofit in another state

IRS data releases — Business Master File and Publication 78 as published 2026-07-26.