Verify a nonprofit in Wisconsin
Check any Wisconsin 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.
Wisconsin 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.
25,333 are individually listed in IRS Publication 78 as eligible for deductible contributions, and 10,394 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 Wisconsin nonprofit
| Education | 3,501 |
| Recreation & Sports | 3,301 |
| Human Services | 2,437 |
| Religion-Related | 2,100 |
| Arts Culture & Humanities | 2,090 |
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.
Common questions behind a verification
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IRS data releases — Business Master File and Publication 78 as published 2026-07-26.