How do Schedule B donor disclosures work and when are donors redacted from public Form 990s?
Executive summary
Schedule B is the internal IRS schedule on Form 990 where tax-exempt organizations report “substantial contributors” and contribution amounts; the IRS and Treasury have narrowed who must provide donor names and addresses, and when Schedule B identifiers appear in public copies the law and practice generally require redaction of donor-identifying information for most organizations [1] [2] [3].
1. What Schedule B is and why it exists
Schedule B, “Schedule of Contributors,” accompanies Form 990 so the IRS can see who gave substantial contributions and verify compliance with tax rules; filers must record donor identities in their books and, historically, on Schedule B itself for IRS review even when the public copy omitted identifying details [1] [4] [3].
2. Who must report donor names to the IRS after the 2020 final regulations
The Treasury’s final regulations (effective May 28, 2020) require 501(c) public charities and 527 political organizations to continue reporting the names and addresses of substantial contributors on Schedule B to the IRS, but relieve many non‑charitable exempt groups—most notably 501(c), (c) and (c) entities—from listing donor identities on the publicly filed Schedule B, allowing them to report only contribution amounts to the IRS [5] [6] [7].
3. When donors are redacted from public Form 990s
For most public-facing disclosures, the names and addresses of contributors on Schedule B are excluded from the “disclosable documents” that the public may inspect; the IRS and practitioners treat contributor names and addresses as generally not subject to public disclosure and expect those identifiers to be redacted from any Form 990 made available to requesters [2] [8] [9].
4. The carve-outs and exceptions that matter
There are important exceptions: private foundations and certain political filers generally must still make full Schedule B information available for public inspection without redaction, and the rules differ by organizational type and state law—so private foundations and some 527 filers remain subject to broader public disclosure [7] [10] [6]. The IRS also maintained that it retains discretion to require names and addresses when necessary to administer the internal revenue laws [3].
5. How the redaction process works in practice and compliance duties
Organizations must keep complete donor records in their books even when permitted to omit names on a filed Schedule B; practitioners advise that the complete, unredacted Form 990 with Schedule B be shared only with the IRS and that organizations prepare redacted “public copies” for release, because inadvertent disclosures can and do occur if procedures and retention are lax [11] [8] [4].
6. Political context, competing viewpoints and potential agendas
Supporters of the 2020 rule changes framed them as privacy and administrative‑efficiency fixes to reduce inadvertent public disclosures and IRS redaction burdens, while critics warned the rollback of mandatory public donor disclosure for non‑charitable entities weakens transparency around political and advocacy spending; law firms and advocacy groups have tracked both sides and stress that state disclosure regimes and litigation could alter practical outcomes [3] [6] [4].
7. Bottom line for readers navigating Schedule B
The bottom line is straightforward: most nonprofits still must collect and report donor identities internally and to the IRS on Schedule B when required, but the public copies of Form 990 that organizations must provide or that the IRS releases are generally stripped of donor names and addresses for most organization types—except where federal law explicitly preserves public access for private foundations, certain political filers, or other statutory exceptions [1] [2] [7].