Yes, donations to a private foundation are tax deductible, provided the foundation holds valid 501(c)(3) status with the IRS. The size of your deduction depends on the type of foundation and the kind of asset you give. Cash gifts to a typical non-operating private foundation are capped at 30% of your adjusted gross income, and non-cash gifts at 20%, both notably lower than the ceilings that apply to public charities. Anything you can’t deduct in the year of the gift carries forward for up to five additional years.
Confirm the Foundation Is a Qualified 501(c)(3)
No deduction is available unless the recipient is recognized under Section 501(c)(3) of the Internal Revenue Code. Verify the foundation’s status through the IRS Tax Exempt Organization Search before you give.1Internal Revenue Service. Tax Exempt Organization Search The database shows whether the organization can receive deductible contributions and whether its exemption is still active. If a foundation has lost its exempt status, gifts made after that point are not deductible regardless of intent.
Two categories of private foundation matter for how much you can deduct: operating foundations that run their own charitable programs, and non-operating foundations that mainly grant money to other charities. Most private foundations, including most family foundations, are non-operating.
How Much You Can Deduct
The IRS caps charitable deductions as a percentage of your adjusted gross income (AGI), and the ceiling depends on the foundation type and the asset donated.
Non-Operating Private Foundations
Cash contributions to a non-operating private foundation are deductible up to 30% of your AGI.2Internal Revenue Service. Charitable Contribution Deductions Gifts of appreciated property, such as real estate or stock, are capped at 20% of AGI.3Internal Revenue Service. Publication 526 (2025), Charitable Contributions For context, cash gifts to public charities can be deducted up to 60% of AGI, so the private foundation ceiling is meaningfully tighter.
Operating and Pass-Through Foundations
A private operating foundation that actively runs its own charitable programs qualifies for the same higher limits as a public charity, so cash gifts can be deducted up to 60% of AGI.2Internal Revenue Service. Charitable Contribution Deductions A non-operating foundation can also qualify for those higher limits if it acts as a pass-through by distributing an amount equal to 100% of all contributions received during the tax year by the 15th day of the third month after its tax year ends.4Internal Revenue Service. Private Pass-Through Foundation
Carrying Forward What You Can’t Use
If your gift exceeds the applicable AGI limit, you don’t lose the excess. Carry the unused portion forward and apply it on returns for up to five additional tax years. A single large gift can therefore generate deductions across six tax years. Carryforward amounts expire at the end of the five-year window, so track them annually.
How Non-Cash Gifts Are Valued
Cash is simple: your deduction equals what you gave. Non-cash property is where private foundation rules depart sharply from what donors often expect.
The Cost Basis Rule
For most non-cash donations to a non-operating private foundation, your deduction is limited to your cost basis, meaning what you originally paid for the asset, not its current fair market value. Real estate bought for $200,000 and now worth $500,000 generates a $200,000 deduction, not a $500,000 one, when donated to a non-operating foundation.3Internal Revenue Service. Publication 526 (2025), Charitable Contributions Public charities generally allow the full fair market value, which is one of the largest differences between the two.
The Qualified Appreciated Stock Exception
Publicly traded stock held more than one year is a significant exception. It can be deducted at full fair market value even when donated to a non-operating foundation, as long as it has readily available market quotations on an established securities market on the day of the gift.3Internal Revenue Service. Publication 526 (2025), Charitable Contributions You avoid capital gains tax on the appreciation and claim the current value, subject to the 20% AGI ceiling for capital gain property. This makes appreciated public securities among the most tax-efficient assets to give.
When You Need an Appraisal
Any non-cash contribution claimed at more than $5,000 requires a qualified appraisal by a qualified appraiser, unless you’re donating publicly traded securities with readily available market quotations.5Internal Revenue Service. Publication 561 (12/2025), Determining the Value of Donated Property The appraisal must be completed before you file the return. The foundation itself cannot serve as the appraiser of property donated to it.6Internal Revenue Service. Charitable Organizations: Substantiating Noncash Contributions Fees for appraising complex assets like real estate or closely held stock commonly run several thousand dollars, so build that into your planning.
Records You Have to Keep
Documentation requirements scale with the size and type of the gift, and a missing document can disqualify the deduction. The burden falls on you, not the foundation.
For any single gift of $250 or more, obtain a written acknowledgment from the foundation before you file. It must state the cash amount or describe the property, and say whether the foundation provided any goods or services in return.7Internal Revenue Service. Charitable Contributions: Written Acknowledgments Foundations aren’t required to send it automatically, so ask.8Internal Revenue Service. Substantiating Charitable Contributions
For cash gifts under $250, bank records suffice: canceled checks, credit card statements, or bank statements showing the transaction. For non-cash property, keep records of the transfer date, how you acquired the asset, and your cost basis.
If you receive something in return for your payment, such as a gala dinner, auction item, or membership benefit, and your payment exceeds $75, the foundation must give you a written disclosure estimating the value of what you received.9Office of the Law Revision Counsel. 26 U.S. Code 6115 – Disclosure Related to Quid Pro Quo Contributions Only the portion of your payment that exceeds that value is deductible.
Claiming the Deduction on Your Return
You must itemize on Schedule A of Form 1040 to claim a charitable deduction for a contribution to a private foundation.10Internal Revenue Service. Topic No. 506, Charitable Contributions If your standard deduction exceeds your total itemized deductions, the charitable gift produces no tax benefit that year. This surprises donors who assume any donation reduces their tax bill.
Starting with the 2026 tax year, a limited deduction for non-itemizers becomes available: up to $1,000, or $2,000 for joint filers, for cash contributions to certain qualified organizations.10Internal Revenue Service. Topic No. 506, Charitable Contributions The IRS describes this as applying to “certain qualified organizations,” which may not include all private foundations. Confirm your foundation’s eligibility with a tax professional before relying on it.
If your total non-cash contributions exceed $500, complete and attach Form 8283. Donations claimed at more than $5,000 require Section B of that form, including an appraisal summary.11Internal Revenue Service. Instructions for Form 8283 (12/2025) An incomplete Form 8283 can cause the IRS to treat the filing as incomplete.12Internal Revenue Service. Instructions for Form 8283 (Rev. December 2025)
If You Also Run the Foundation
The rules above cover the donor’s side. If you’re giving to a family foundation that you also help operate, the foundation’s own compliance affects the deductibility of every future gift. A foundation that loses its exempt status stops being a qualified recipient, and three consecutive years of failing to file Form 990-PF triggers automatic revocation. Non-operating foundations must also distribute at least 5% of the fair market value of their non-charitable-use assets each year, with excise taxes starting at 30% of the undistributed amount and rising to 100% if the shortfall isn’t corrected.13Internal Revenue Service. Minimum Investment Return14Office of the Law Revision Counsel. 26 U.S. Code 4942 – Taxes on Failure to Distribute Income Self-dealing between the foundation and disqualified persons, meaning donors, family, managers, and major contributors, is separately prohibited and carries its own excise tax regime.15Office of the Law Revision Counsel. 26 U.S. Code 4941 – Taxes on Self-Dealing Well-intentioned family foundation operators most often run into trouble by treating foundation assets with the same informality as personal funds.