A 501(c)(6) can donate to a 501(c)(3), but the grant has to advance the business league’s own exempt purpose of improving conditions in its industry. The IRS does not treat these transfers as charitable giving. It treats them as expenditures of the league, measured against the same standard as every other dollar the league spends: does this improve conditions in the line of business the league exists to serve? Answering that well, and documenting the answer, is the whole job.
When the Grant Is Allowed
A 501(c)(6) organization exists to promote the common business interests of its members and improve conditions in one or more lines of business. Its activities must benefit the industry broadly, not perform services for particular individuals.1Internal Revenue Service. Requirements for Exemption Business League A donation out to a charity is measured against that same yardstick.
A dental association can fund a nonprofit clinic researching oral health technologies, because better technology benefits the profession. A construction trade group can fund a 501(c)(3) workforce program that trains people for the building trades. Both grants tie directly to the donor’s line of business. The same dental association writing a check to an animal rescue would struggle to explain how the gift improves conditions in dentistry.
The IRS has said that an organization without a genuine common business interest among its members, or one whose activities primarily promote private interests rather than the broader trade, does not qualify for exemption.2Internal Revenue Service. IRC 501(c)(6) Organizations A pattern of donations to unrelated charities can signal that the league has drifted from its exempt purpose. There is no safe harbor dollar amount for unrelated giving. If the IRS concludes a substantial portion of the league’s activities no longer improves business conditions in its field, the exemption itself is at risk.
How the IRS Treats the Money
When a 501(c)(6) donates to a 501(c)(3), the transfer is not a charitable contribution under Section 170 of the Internal Revenue Code. Section 170 governs charitable deductions for individual taxpayers and corporations giving to qualified charities.3Office of the Law Revision Counsel. 26 USC 170 Charitable Contributions and Gifts A business league is neither. The question is instead whether the expenditure qualifies as an ordinary and necessary expense related to the league’s exempt function.
Treasury regulations back this up. Donations to organizations that bear a direct relationship to the taxpayer’s business and are made with a reasonable expectation of a financial return proportional to the amount donated can qualify as allowable business expenses.4GovInfo. 26 CFR 1.162-17 Reporting and Substantiation of Certain Business Expenses A $10,000 grant to a workforce training program should produce something tangible for the industry, such as a better-prepared labor pool for member businesses.
The classification also matters to members. Dues paid to a 501(c)(6) are not deductible as charitable contributions on a member’s return. They may be deductible as trade or business expenses if ordinary and necessary in the member’s business.5Internal Revenue Service. Tax Treatment of Donations 501(c)(6) Organizations Members hoping for a charitable write-off on dues that the league later routes to a 501(c)(3) will be disappointed. The tax treatment follows the nature of the recipient organization the member paid, not the eventual destination of the funds.
Watch for Insider Overlap
No part of a 501(c)(6) organization’s net earnings may benefit any private individual.1Internal Revenue Service. Requirements for Exemption Business League That prohibition covers grants to charities. The danger comes when the league’s board overlaps with the receiving 501(c)(3)’s leadership. If a board member of the business league also controls the recipient, the IRS may see the donation as a channel for personal benefit rather than a service to the industry.
For the 501(c)(6), a private inurement finding can mean revocation of tax-exempt status, and the organization then becomes subject to corporate income tax on all its revenue. The IRS does not need to prove intent. A structure that allows earnings to flow to an insider can trigger revocation on its own.6Internal Revenue Service. IRC 501(c)(6) Business Leagues, Chambers of Commerce
On the charity side, excess benefit transaction rules under Section 4958 can impose excise taxes on insiders who receive more than fair value in a transaction with the 501(c)(3), and on managers who knowingly approve it.7Office of the Law Revision Counsel. 26 USC 4958 Taxes on Excess Benefit Transactions When the two organizations share leadership, both face scrutiny. Conflicted directors should recuse themselves from the vote, and the terms of the grant should look the same as they would with any unrelated charity.
The Charity Cannot Use the Money to Lobby
A 501(c)(3) cannot use donated funds for substantial lobbying or any political campaign activity.8Internal Revenue Service. Exemption Requirements – 501(c)(3) Organizations This is a trap for business leagues that are used to legislative advocacy. A 501(c)(6) can lobby freely on its own. It cannot route that activity through a 501(c)(3) by earmarking a grant for lobbying. Doing so jeopardizes the charity’s exempt status and pulls the league into IRS scrutiny too.
A 501(c)(6) that spends dues revenue on lobbying must either notify members of the nondeductible portion of their dues or pay a proxy tax at the highest corporate rate.9Office of the Law Revision Counsel. 26 U.S. Code 6033 – Returns by Exempt Organizations Keeping grant funds to a 501(c)(3) cleanly separate from any lobbying account simplifies both the reporting and the audit trail.
Documentation Before You Send the Check
First, verify the charity’s exempt status using the IRS Tax Exempt Organization Search tool. Search by EIN or name to confirm a valid 501(c)(3) determination.10Internal Revenue Service. Search for Tax Exempt Organizations Sending money to a group that has lost its exemption creates reporting problems and can mean the funds fell outside the league’s exempt purpose.
A written grant agreement is the single most important document. No specific regulation prescribes the format, but the agreement should cover the dollar amount, how the charity will use the funds, a statement tying the grant to the league’s exempt purpose, a prohibition on using the funds for lobbying or political activity, and a requirement that unused funds come back. An IRS examiner will ask for this first.
Internal records matter as well. Board minutes, a written rationale linking the grant to the league’s mission, and any conflict-of-interest disclosures show good governance. The burden is on the organization to prove that its expenditures were ordinary and necessary for its exempt function.4GovInfo. 26 CFR 1.162-17 Reporting and Substantiation of Certain Business Expenses
Reporting the Grant on Form 990
A 501(c)(6) that makes grants totaling more than $5,000 to domestic organizations during the tax year must complete Schedule I of Form 990. For each recipient that received more than $5,000 in aggregate, the league reports the charity’s legal name, EIN, tax-exempt status, grant amount, and a description of the grant’s purpose.11Internal Revenue Service. Instructions for Schedule I (Form 990) The purpose description needs to be specific. “Charitable” or “educational” will not pass. “Fund scholarships for students entering the welding trade” tells the IRS what the money is for and ties it to the league’s industry.
For tax years beginning after July 1, 2019, all Forms 990 must be filed electronically.12Internal Revenue Service. E-File for Charities and Nonprofits Paper filing is no longer an option for most business leagues.
A league that also has lobbying expenditures may need to complete Schedule C in addition to Schedule I. Schedule C requires a breakdown of spending on legislative influence, political campaigns, and direct communications with executive branch officials.13Internal Revenue Service. Instructions for Schedule C (Form 990) Organizations that both lobby and make grants should track those expenses in separate accounts so one does not get misclassified as the other.
The Grant Becomes a Public Record
Federal law requires tax-exempt organizations to make their annual returns available for public inspection during the three-year period beginning on each return’s filing deadline.14Office of the Law Revision Counsel. 26 USC 6104 Publicity of Information Required from Certain Exempt Organizations Any person can request the filing at the organization’s principal office during regular business hours, and offices with three or more employees must also provide access.
Every grant reported on Schedule I is therefore public. Anyone who wants to see how much the league donated to a particular 501(c)(3), and for what stated purpose, can find it. Failure to make returns available on request carries a per-day penalty, up to a per-return cap.15Office of the Law Revision Counsel. 26 U.S. Code 6652 – Failure to File Certain Information Returns Filed returns are also viewable through the IRS Tax Exempt Organization Search tool, which many organizations rely on to satisfy the disclosure requirement.