The new tax and spending law, known as the One Big Beautiful Bill Act (OBBBA), contains several provisions that directly affect nonprofits. In particular, the impact of OBBBA’s charitable giving incentives is expected to be significant. So it’s important for nonprofit leaders to understand these provisions and their likely consequences.
Fundraising-friendly provisions
Let’s lead with the good news: The OBBBA establishes a permanent deduction for taxpayers who don’t itemize their deductions, beginning in 2026. Up to $1,000 for single filers and $2,000 for married couples filing jointly can be taken as a charitable deduction when filing annual tax returns. Eligible donations must be made to tax-exempt public charities. Gifts to private foundations or donor-advised funds don’t qualify.
Because the Tax Cuts and Jobs Act (TCJA) of 2017 nearly doubled the amount of the standard deduction, fewer taxpayers itemize their deductions than before that law was signed. And the OBBBA increases the standard deduction even further (for 2025, $15,750 for single filers and $31,500 for joint filers). Until now, that meant nonitemizers forfeited deductions for charitable contributions. Researchers at Indiana University and the University of Notre Dame have determined that charitable giving fell by $20 billion in 2018, the first year the higher deduction took effect. Many within the nonprofit sector hope a universal deduction will encourage more nonitemizing middle-income households to donate.
The OBBBA also makes permanent the limit on cash contributions. Taxpayers can deduct contributions to public charities up to 60% of their adjusted gross income (AGI). Pre-TCJA, the limit was 50% of AGI.
Disincentives for giving
But the OBBBA also includes several provisions that are considered likely to reduce incentives to give. For starters, beginning in 2026, the law imposes new “floors” on charitable contribution deductions for both individuals who itemize and corporate taxpayers. The floors reduce the previously deductible amounts. Here’s how:
Individuals. For an individual taxpayer, the new floor is 0.5% of AGI. So a donor with an AGI of $100,000 can’t deduct the first $500 ($100,000 × 0.5%) of donations made that year.
Corporations. The floor for corporate deductible donations is 1% of the corporation’s taxable income. Researchers at Indiana University’s Lilly Family School of Philanthropy estimate that the corporate floor will reduce corporate giving by about $45 billion over 10 years. The OBBBA also renews the existing limit that restricts corporate deductible donations to 10% of taxable income.
Although corporations can carry forward contributions that exceed the limit for the following five years, contributions that are disallowed because of the 1% floor can be carried forward only from years in which total contributions exceed the 10% ceiling.
Impact on high-income donors
The OBBBA may also disincentivize donations from high-income donors by effectively capping the value of itemized deductions for individual taxpayers in the highest tax bracket (37%) to 35 cents per dollar, versus 37 cents per dollar pre-OBBBA. This cap becomes effective starting in 2026.
Indiana University researchers examined the impact of this limit on high-income donors, who they characterize as exceptionally responsive to tax incentives. Such donors are responsible for more than half of all itemized charitable giving. Researchers project that the limit will reduce giving by at least $4.1 billion per year and may jeopardize as much as $6.1 billion.
Also, the OBBBA permanently increases the estate and lifetime gift tax exemption to $15 million, or $30 million for married couples, for 2026 ($13.99 million and $27.98 million for 2025). These amounts will be adjusted annually for inflation. Therefore, reducing estate tax liability is expected to play a minor role in motivating charitable donors
Adjusting to a shifting landscape
Depending on your nonprofit’s historical sources of support, 2026 could bring significant changes to your financial prospects. We can help you navigate the shifting landscape proactively, so you don’t have to scramble to adjust to new OBBBA provisions.
Fundraising in a new environment
The effects of the One Big Beautiful Bill Act’s revisions to the deduction limits and tax incentives for charitable giving may call for you to overhaul your nonprofit’s traditional fundraising strategies. Begin with scenario planning, mapping out how donor behaviors might change. Consider the different potential impacts and how they’d affect your bottom line in the short- and long-term. How might an uptick in donations attributable to the new universal deduction weigh against a decline in gifts from corporations and taxpayers who itemize?
You may need to retool your fundraising efforts to appeal to existing and potential middle-income donors. Educating these individuals about the benefit of the universal deduction is a critical first step, as many will be unaware of it. Greater effort may be required to engage itemizers and corporations as well. You should focus on your programs’ outcomes to help donors see past the negative tax impact of deduction floors.





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