Many professionals in their peak earning years have begun to incorporate charitable giving into their financial strategy—not just as a way to give back, but also to manage their tax exposure. If you fall into this group, it’s important to understand how the One Big Beautiful Bill Act (OBBBA), signed into law in 2025, will change the rules starting next year.
New Rules for High-Earning Households
Beginning in 2026, charitable contributions will only be deductible after they exceed 0.5% of your adjusted gross income (AGI). For a household earning $500,000, that means the first $2,500 in charitable giving won’t reduce your taxable income at all. This new threshold applies regardless of whether you give cash, appreciated assets, or other property.
In addition, the maximum deduction value is being reduced. Previously, individuals in the top tax bracket received a 37% tax benefit for every dollar donated. Under the new law, that benefit drops to 35%, which slightly reduces the overall value of high-dollar gifts.
What the Changes Mean in Real Numbers
Let’s start with a married couple earning $550,000 in taxable income who regularly give $55,000 per year to charity. Under the new rules starting in 2026:
- The first $2,750 of their charitable giving (0.5% of $550,000) would no longer be deductible.
- As a result, their deductible amount would drop to $52,250, even though their giving remained the same.
Now let’s say you’re in one of the top income brackets.
Consider a couple with $800,000 in taxable income who gives $80,000 annually:
- Starting in 2026, they would lose the deduction on the first $4,000 due to the new floor.
- In addition, the value of each deductible dollar is reduced, as the top tax bracket’s rate on charitable deductions drops from 37% to 35% under the new law.
In both cases, while households continue to give generously, less of their contribution will be recognized for tax purposes in 2026 compared to 2025. This change affects both how much is deductible and how impactful that deduction is in reducing taxable income.
How to Preserve the Value of Your Giving
If you’re in your peak earning years and planning to make significant charitable contributions over time, 2025 may be the year to act. The current rules still allow full deductibility without the 0.5% floor, and donations are recognized at the higher 37% top tax rate—making this a critical window for strategic planning.
One way to optimize your giving is through bunching—consolidating several years’ worth of charitable contributions into a single tax year. This strategy can push your deductions above the new 0.5% AGI threshold while allowing you to take the standard deduction in other years.
To retain flexibility, many professionals pair this with a donor advised fund (DAF). By making a large contribution to a DAF in 2025, you can claim the full deduction now while spreading actual grants to nonprofits over multiple years.
This approach can be especially effective when using non-cash assets such as shares from an Associate Stock Purchase Plan (ASPP) or Restricted Stock Units (RSUs). Donating appreciated shares allows you to:
- Avoid capital gains tax on the appreciation,
- Receive a deduction for the fair market value, and
- Support charitable causes using assets that have accumulated without reducing current cash flow.
In short:
- You get the deduction in 2025, when the tax benefit is highest.
- You control the timing of future gifts from the DAF.
- You sidestep the tighter deduction rules coming in 2026.
Closing Thoughts: A Critical Year for Charitable Planning
With new deduction limits taking effect in 2026 under the One Big Beautiful Bill Act, high-income households have a limited window to optimize the tax value of their charitable giving. Whether you’re making annual donations, holding appreciated stock, or considering a donor advised fund, the decisions you make before December 31, 2025, could significantly affect your after-tax outcomes.
Now is the time to meet with a financial advisor or tax professional to determine whether an additional charitable gift in 2025 makes sense for your household. A well-structured contribution this year—especially using appreciated assets or equity compensation—could preserve thousands in tax value while supporting the causes you care most about.