On July 4, 2025, the One Big Beautiful Bill Act (OBBBA) was signed into law. This article summarizes relevant key provisions that impact tax-exempt organizations.
Expansion of §4960 excise tax
Internal Revenue Code (IRC) Section 4960 imposes a 21% excise tax on exempt organizations that pay over $1 million in compensation to their five highest-paid employees. The provision also taxes excess parachute payments.
For tax years beginning in 2026, under the OBBBA this excise tax now applies to all earners of a nonprofit receiving over $1 million in compensation, rather than just the five highest-paid employees. Importantly, this change is retroactive and requires organizations to look at any employee or former employee who was employed during any taxable year beginning after December 31, 2016. The exclusion from this tax for employees providing medical services continues to apply.
Excise tax on investment income of private colleges and universities under IRC §4968
IRC Section 4968 imposed an excise tax of 1.4% on net investment income of private colleges and universities that have at least 500 tuition-paying students and at least $500,000 in endowment assets per student.
Under the OBBBA, for tax years beginning after December 31, 2025, a tiered tax regime has been created dependent on an institution’s “student adjusted endowment” for private colleges and universities that have at least 3,000 tuition-paying students and at least $500,000 in their student-adjusted endowment. The rates are:
Charitable giving for corporations and individuals
The OBBBA has added several provisions in the realm of charitable contribution deductions for both corporations and individuals, which could impact amounts received by nonprofit organizations in the form of charitable giving.
For corporations, the OBBBA establishes a 1% floor for charitable contributions, further limiting the charitable contribution deduction amount a corporation can claim for tax purposes. The 10% ceiling for these deductions remains.
For individuals who itemize deductions, the OBBBA establishes a cap on the overall itemized deductions that can be claimed by high income taxpayers. The OBBBA also creates a 0.5% floor for charitable contribution deductions, meaning that individuals who itemize would be entitled to claim a charitable contribution deduction only if they contribute in excess of 0.5% of their charitable contribution base (AGI before deductions for charitable giving).
For non-itemizers, the OBBBA provides a tax deduction of $1,000 for single taxpayers and $2,000 for joint filers for charitable contributions, starting in 2026.
Additional tax changes
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The use of funds in IRC Section 529 plans has been expanded to cover homeschooling costs, purchase of curricular and online educational materials, tutoring, standardized testing fees, and education-related therapies for students with disabilities. The measure would also cover tuition, fees, and supplies associated with obtaining postsecondary credentials through recognized vocational and certificate programs.
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The OBBBA has made the tax treatment of moving expenses permanent. Thus, employee-incurred moving expenses are not tax-deductible, and any moving expenses reimbursed by the employer are taxable compensation to the employee.
There were a few proposed provisions specific to the nonprofit sector that were ultimately not included in the final version of the OBBBA, such as the revival of the UBI parking tax as well as increases in the excise tax rate on net investment income for private foundations. However, some of these provisions could potentially be reintroduced in subsequent legislation as Congress looks to find additional sources of revenue.
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