A Beginner’s Guide to IRS Publication 5590: Rules on Foundation Taxable Expenditures

ARUN KP

11/13/2026

1. Introduction – What is Publication 5590?

IRS Publication 5590 is an official guide issued by the Internal Revenue Service under its Exempt Organizations Technical Guide series. Known technically as “TG 62: Excise Taxes on Taxable Expenditures under IRC Section 4945,” it provides comprehensive instructions on what private foundations can and cannot spend their money on. It outlines how federal tax law polices spending to ensure charitable assets genuinely serve the public good.

IRS repository records show that the primary operative release of Publication 5590 remains the August revision (Revision 8-2024, Catalog Number 75131W). This document continues to serve as the active, authoritative manual for IRS revenue agents and tax advisors. It sets the standard for reviewing foundation activities, managing compliance audits, and assessing excise taxes on prohibited transactions.

For foundations and their managers, this guide transforms complex statutory requirements into direct operational instructions. It explains how spending on unapproved grants, political lobbying, or non-charitable endeavors triggers severe financial penalties. Learning these guidelines helps organizations protect their tax-exempt status while fulfilling their philanthropic goals.

2. Who Should Read This Publication

Publication 5590 is written for anyone involved in governing, operating, or advising a private foundation. Because excise taxes apply not only to the organization but also to individual decision-makers, understanding these rules is critical.

  • Private Foundation Trustees and Directors: Board members who approve grants, budgets, and operational spending must understand their personal liability.
  • Foundation Managers and Officers: Day-to-day leaders who manage grant agreements, review scholarship programs, and monitor project execution.
  • Tax Professionals and CPAs: Accountants preparing annual information returns or representing charitable entities during tax reviews.
  • Grantmakers and Philanthropic Advisors: Staff members responsible for structuring grants to foreign organizations or non-charitable entities.

3. Key Topics Covered

Publication 5590 breaks down Section 4945 of the Internal Revenue Code into clear categories. The primary goal is to establish boundaries around philanthropic spending.

  • Lobbying Restrictions: Rules prohibiting funds from being used to influence local, state, or federal legislation.
  • Voter Drives and Election Campaigns: Absolute bans on political campaign interventions and conditional rules for voter education programs.
  • Grants to Individuals: Explicit requirements for awarding travel, study, or scholarship grants, including required advance approval from the IRS.
  • Expenditure Responsibility: Mandatory oversight procedures required when giving money to organizations that are not recognized public charities.
  • Non-Charitable Spending: Penalties imposed on any expenditure made for purposes outside religious, educational, scientific, or benevolent goals.
  • Two-Tier Excise Tax Structure: Calculations for initial taxes and severe second-tier penalty taxes on foundations and managers.

4. Detailed Breakdown of Main Concepts

The Definition of a Taxable Expenditure

Under IRC Section 4945, a taxable expenditure is any payment or grant made by a private foundation that fails to meet specific legal requirements. Unlike regular public charities, private foundations are subject to tight restrictions because their funding often comes from a small group of donors. Any dollar spent outside approved charitable channels is treated as an improper distribution.

Lobbying and Political Prohibitions

Private foundations are strictly forbidden from attempting to influence legislation. This includes direct lobbying, such as contacting lawmakers, as well as grassroots lobbying that urges the general public to contact representatives. Foundations cannot participate in political campaigns for or against any candidate seeking public office. While public charities may engage in limited lobbying under specific expenditure limits, private foundations face a complete zero-tolerance standard under Publication 5590.

Individual Grants and Advance Approval

Private foundations frequently wish to grant scholarships, fellowships, or research awards to individual students and scholars. Under Section 4945(g), a foundation cannot simply select individuals on its own terms. It must obtain advance approval of its grant-making procedures from the IRS. The selection process must be objective, non-discriminatory, and designed to achieve educational or charitable purposes.

Expenditure Responsibility

When a private foundation gives money to another public charity, the public charity oversees the funds. However, if a foundation gives money to a non-public charity—such as a for-profit enterprise, a social welfare club, or another private foundation—it must exercise “expenditure responsibility.” This requires conducting pre-grant inquiries, obtaining signed grant agreements, collecting annual spending reports, and reporting details to the IRS.

Tax Level Foundation Penalty Foundation Manager Penalty Correction Requirement
First-Tier Tax 20% of the taxable expenditure 5% of the expenditure (up to $10,000 maximum) Recovery or correction of expenditure within the taxable period
Second-Tier Tax 100% of the taxable expenditure 50% of the expenditure (up to $20,000 maximum) Assessed if the violation is not corrected in time

5. Practical Examples or Scenarios

Scenario 1: The Unapproved College Scholarship Fund

A family foundation decides to support local students by giving five $10,000 college scholarships every year. The board creates a selection committee and pays the money directly to university students. Even though the intention is entirely charitable, the foundation failed to submit its grant-making procedures to the IRS for advance approval under Form 8940. Because advance approval was missing, every grant is classified as a taxable expenditure subject to the 20% penalty tax.

Scenario 2: The Environmental Legislative Letter

A private foundation funds an environmental project and uses foundation funds to print pamphlets urging citizens to contact their state senators about a pending clean water bill. This action constitutes grassroots lobbying. Under Publication 5590, the cost of designing, printing, and distributing those pamphlets is an impermissible lobbying expense, triggering excise taxes on both the foundation and the managers who authorized it.

Scenario 3: Cross-Border Grantmaking

A domestic foundation wants to assist a community clinic located in South America. Since foreign charities are rarely recognized as Section 501(c)(3) public charities by default, the foundation has two options. It can make an official equivalency determination showing the clinic matches U.S. public charity standards, or it can follow expenditure responsibility procedures. By securing an expenditure responsibility agreement and verifying receipts, the foundation avoids taxable expenditure penalties.

6. How This Publication Relates to Specific Forms

Publication 5590 directly informs how foundations complete their annual tax filings and formal IRS requests. Compliance tracking links several core forms together.

  • Form 990-PF: The annual return for private foundations. Part VII-B asks specific questions regarding whether the organization made any taxable expenditures under Section 4945 during the year.
  • Form 4720: The return used to report and pay excise taxes. If a foundation or manager incurs a first-tier or second-tier penalty tax under Section 4945, it is calculated and reported on Schedule I of Form 4720.
  • Form 8940: The application for miscellaneous determination requests. Foundations submit this form to request mandatory advance approval from the IRS before launching scholarship programs for individuals.

7. Common Misunderstandings Clarified

Many new foundation leaders assume that as long as money is spent on a good cause, the IRS will approve it. That assumption is inaccurate. The rules in Publication 5590 enforce process just as strictly as charitable intent.

Another widespread myth is that foundation board members cannot be penalized personally. Under IRC Section 4945, managers who knowingly approve a taxable expenditure face individual excise taxes paid from their own pockets, not from foundation funds. Foundation insurance policies frequently do not cover willful statutory excise tax violations.

Finally, some believe that foundations can never award scholarships directly. Scholarships are entirely permissible, but they must follow written criteria approved in advance by the IRS. Skipping the application step transforms an otherwise noble program into a taxable event.

8. Why This Publication Matters for Taxpayers

Private foundations receive substantial tax advantages, including tax-deductible donor contributions and exemptions from general income tax. In exchange, the public expects these assets to be managed transparently and used solely for lawful charitable missions. Publication 5590 protects taxpayers by ensuring that tax-exempt dollars are not diverted into political campaigns, private lobbying interests, or unmonitored accounts.

For donors and trustees, following this guidance safeguards personal reputations and financial resources. Ignoring the rules can quickly accumulate combined excise taxes reaching 120% or more of the original expenditure, alongside potential revocation of tax-exempt status. Staying informed guarantees that charitable gifts achieve meaningful impact without unnecessary tax controversies.

9. Frequently Asked Questions

What is IRC Section 4945?

IRC Section 4945 is the federal tax statute that imposes excise taxes on private foundations and their managers when they make expenditures that do not conform to legal charitable restrictions.

Can a private foundation ever engage in lobbying?

No. Unlike public charities, private foundations cannot incur any lobbying expenses without triggering taxable expenditure excise taxes. They can, however, produce neutral, nonpartisan educational research that presents objective analyses of issues.

What does “correction” mean under Publication 5590?

Correction involves recovering the improperly spent funds to the fullest extent possible. If the violation involved a missing report under expenditure responsibility, completing and obtaining the report can correct the issue and prevent severe second-tier taxes.

Are grants to foreign charities automatically taxable expenditures?

Not automatically. A foundation can grant funds abroad without penalty if it exercises expenditure responsibility or makes a documented determination that the foreign recipient is equivalent to a U.S. public charity.

Who pays the foundation manager excise tax?

The individual manager or board member pays the excise tax personally. The foundation is legally barred from paying manager excise taxes on their behalf as a routine indemnification.

10. Conclusion

IRS Publication 5590 serves as an essential compliance roadmap for anyone operating a private foundation. By setting clear boundaries around lobbying, political activities, individual grants, and non-charity funding, it protects charitable funds from improper use. Foundation managers who take the time to understand these guidelines ensure that their philanthropic vision thrives without costly excise tax interruptions.

ARUN KP
Author

Entrepreneur | Tax Journalist | India-US Tax Consultant & Professional Accountant. Connect with me on LinkedIn.

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