Can Donors Be Anonymous on Form 990 Schedule B?

Whether anonymous donors on Form 990 Schedule B truly stay anonymous depends on two separate questions. The IRS itself sees the names of most contributors who give $5,000 or more in a year. The general public usually does not, because contributor identities are redacted from the copy of the return available for public inspection. The big exception: donors to private foundations and to Section 527 political organizations are visible to anyone who asks for the return.¹

When Your Name Gets Reported to the IRS

Schedule B (Schedule of Contributors) is attached to Form 990, 990-EZ, or 990-PF whenever an organization has received $5,000 or more from a single contributor during the tax year.² If you cross that line, the organization is required to list your name, address, total contribution amount, and whether the gift was cash, payroll, or noncash property.³

The $5,000 is an annual aggregate, not a per-gift figure. Four checks of $1,500 across the same year add up to $6,000 and trigger identification. But the IRS instructions include a threshold that many donors and organizations miss: gifts of less than $1,000 from the same donor can be disregarded when adding up whether that donor crossed $5,000.³ Twelve monthly gifts of $450, totaling $5,400, would not require identification, because no single gift reached $1,000.

Contributors who stay below the reporting threshold are never listed individually. Their gifts are rolled into a single line showing the total number of anonymous contributors and the total amount received from that group.

Noncash Gifts

Property counts too. For a donation of stock, real estate, or other property, the fair market value on the date of the gift determines whether the $5,000 threshold is met.³ Securities donated and immediately sold are still reported as noncash, at the net proceeds plus broker fees. Securities held after receipt are valued using the average of the highest and lowest quoted selling prices on the contribution date. If the property has debt attached, the debt is subtracted from the fair market value.

The 2% Rule That Protects Mid-Sized Donors to Large Charities

The most useful carve-out for anonymity applies to public charities that pass the 33⅓% support test under Sections 509(a)(1) and 170(b)(1)(A)(vi). For these organizations, a contributor must be identified only if the gift is both $5,000 or more and more than 2% of the charity’s total contributions reported on Form 990, Part VIII, line 1h.³

At a public charity that received $10 million in contributions, the 2% threshold is $200,000. A $50,000 gift crosses the $5,000 floor but not the 2% line, so the donor is not listed on Schedule B. Only contributors giving more than $200,000 appear.

The charity has to demonstrate on Schedule A that it met the 33⅓% test for the current or prior year, or be within its first five years and check the appropriate box.³ Charities that rely on the weaker 10% facts-and-circumstances test do not qualify and must follow the standard $5,000 rule.

When the Public Can See Your Name

Under 26 U.S.C. §6104, contributor names and addresses on Schedule B are shielded from public inspection for most tax-exempt organizations. When a nonprofit hands over its Form 990 in response to a public records request, it may redact Schedule B entirely, leaving only summary figures visible.¹

Two categories of organizations lose that protection. Section 6104(b) carves out private foundations and Section 527 political organizations from the non-disclosure rule, so contributors to either can be identified by anyone who requests the return.¹ If you give $5,000 or more to a family foundation or a 527 political group, expect your name to be public.

Even where names are redacted, contribution amounts, descriptions of noncash property, and other non-identifying details still have to be available for inspection, unless disclosing them would clearly identify the contributor.

501(c)(4) and Other Non-501(c)(3) Organizations

Social welfare groups under 501(c)(4), labor unions, trade associations, and other non-501(c)(3) exempt organizations follow the $5,000 rule but are not required to report contributor names and addresses on the copy of Schedule B filed with the IRS. They report contribution amounts and may enter “N/A” in the name fields. The organization keeps donor records internally, but the identifying information does not reach the IRS through Schedule B. Section 527 political organizations are the exception among non-501(c)(3)s: they must report names and addresses, and separate disclosure rules under Form 8872 apply at even lower thresholds.³

Private Foundations

Private foundations get no threshold relief. Every contributor of $5,000 or more must be identified, and because 6104(b) makes their Schedule B public, those names are open to anyone requesting the return. Foundation giving is not a route to anonymity.

What States Can and Cannot Demand

Some states historically required charities to submit an unredacted Schedule B as part of charitable solicitation registration. In 2021, the U.S. Supreme Court struck down California’s blanket demand for all registered charities to hand over Schedule B information to the state attorney general. The Court held the requirement failed exacting scrutiny under the First Amendment because it was not narrowly tailored to the state’s investigative interests and created an unnecessary risk of chilling donor association.⁴ The ruling significantly limits, though does not completely eliminate, state authority to demand unredacted donor lists. Charities registering in multiple states should check whether a given state still requests the information and on what basis.

The Bottom Line for Donors

Full anonymity, even from the IRS, is only realistic if you keep annual giving to a single organization below $5,000 (and any single gift below $1,000, so the disregard rule applies to the whole total). Above that, the organization files your name with the IRS. Whether anyone else sees it depends on what type of organization received your money: a public charity redacts you from the public copy; a 501(c)(4) does not send your name to the IRS in the first place; a private foundation or 527 political organization publishes it.

1
Office of the Law Revision Counsel. 26 U.S. Code 6104 – Publicity of Information Required From Certain Exempt Organizations and Certain Trusts
2
Internal Revenue Service. IRS Form 990 Schedule B – Schedule of Contributors
3
Internal Revenue Service. Instructions for Schedule B (Form 990)
4
Supreme Court of the United States. Americans for Prosperity Foundation v. Bonta