Donor-Advised Fund Deduction: AGI Limits, Carryover, and 2026 Rules

Your donor advised fund deduction equals the value of what you transfer to the sponsoring public charity in the year you make the transfer, but it is limited by your adjusted gross income and, starting in 2026, by a new floor that removes small contributions from the calculation entirely. Cash contributions are deductible up to 60% of AGI. Long-term appreciated property is deductible at fair market value up to 30% of AGI. Anything above those caps carries forward for up to five years. You only get the benefit if you itemize.

When the Deduction Is Claimed

You claim the deduction in the tax year you make an irrevocable transfer to the public charity that sponsors your DAF. The IRS treats contributions to a DAF as gifts to a public charity, which gives you the most favorable deduction limits available for charitable giving.¹ The word that matters is irrevocable. Once the sponsoring organization receives the assets, it has legal control. You keep advisory privileges over how grants are made from the account, but you cannot pull the money back for personal use.

The deduction lives on Schedule A, so you have to itemize. For 2026, the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly, and total itemized deductions have to exceed those amounts before the DAF contribution produces any tax benefit.²

How Much Each Asset Type Is Worth

The size of the deduction depends on what you contribute. Cash is straightforward. Non-cash assets are where the rules diverge, and where the tax code rewards giving appreciated property directly rather than selling it first.

Long-Term Appreciated Securities

Contributing stock, mutual funds, or ETFs you have held for more than a year is where a DAF delivers its outsized benefit. Your deduction equals the full fair market value on the date of contribution, and you never pay capital gains tax on the appreciation.³ Stock bought at $20,000 that is now worth $100,000 produces a $100,000 deduction with no tax on the $80,000 gain. Selling first and donating cash would leave you paying capital gains before the gift.

Ordinary Income Property

Assets that would generate ordinary income rather than long-term capital gain if sold get reduced treatment. The deduction is cut by the amount of gain that would not have qualified as long-term capital gain, which in practice limits the deduction to what you paid.⁴ Inventory, artwork you created, and securities held for a year or less all fall in this bucket.

Cryptocurrency

The IRS treats cryptocurrency as noncash property, not as cash or a publicly traded security. Crypto donations worth more than $5,000 require a qualified appraisal from an independent appraiser. The value shown by an exchange or the number the sponsor provides is not enough.⁵ Held more than a year, appraised fair market value is deductible. Held a year or less, the deduction is capped at what you paid.

Real Estate and Complex Assets

Real estate, private company stock, partnership interests, and other complex holdings require a qualified appraisal for any deduction claimed above $5,000. The appraisal must be complete before the due date of your return, including extensions.⁶ Publicly traded securities are exempt because market prices establish value. A missing or late appraisal wipes out the appreciation portion of the deduction entirely.

AGI Percentage Caps

Once you know what your contribution is worth, the AGI caps decide how much you can actually deduct this year:

Cash contributions to a DAF are deductible up to 60% of AGI.⁴
Long-term appreciated property at fair market value is deductible up to 30% of AGI.
Ordinary income property valued at basis is deductible up to 50% of AGI.³

The 30% cap on appreciated property is lower because the donor is already receiving two benefits: a deduction at market value and the elimination of capital gains tax on the built-in appreciation. When you contribute both cash and appreciated property in the same year, the 30% property limit is applied first, and cash then fills whatever remains up to 60% of AGI.³

Consider a donor with $500,000 in AGI who gives $200,000 of appreciated stock and $150,000 in cash. The stock deduction is capped at $150,000 (30% of AGI). The cash deduction of $150,000 fits within the remaining room. The $50,000 of stock that did not fit carries forward.

Carrying the Excess Forward

Contributions over the AGI cap in the year of the gift are not lost. You can carry the excess forward and deduct it over the next five tax years, subject to the same AGI limits each year.³ The carryforward keeps its original character. Excess appreciated property stays at 30%. Excess cash stays at 60%.

An ordering rule catches donors off guard. In each future year, current-year contributions are deducted first, and carryforward amounts only fill whatever room is left under the AGI cap. If your current giving fills the cap by itself, the carryforward waits another year, eating into the five-year window. If the five years run out with carryforward remaining, that deduction is permanently gone.

What Changed in 2026 Under the One Big Beautiful Bill Act

The One Big Beautiful Bill Act, signed on July 4, 2025, added new restrictions on top of the existing AGI caps starting in 2026.⁷ The 60% and 30% AGI limits survived. Three other rules now sit alongside them.

The 0.5% AGI Floor

For itemizers, only charitable contributions above 0.5% of AGI count toward the deduction. Anything below the floor produces no tax benefit. On $200,000 of AGI, the first $1,000 of giving does not count. On $500,000 of AGI, the first $2,500 does not count. The floor applies to all itemized charitable contributions, whether they go to a DAF, a church, or any other qualifying organization. Qualified charitable distributions from an IRA are unaffected because they never enter AGI in the first place.

For most donors making DAF-sized contributions, the floor is a modest haircut. For moderate-income donors whose annual giving is close to the floor, it can wipe out the deduction.

The 35% Cap for Top-Bracket Donors

Taxpayers in the highest bracket now see the value of their itemized charitable deductions capped at 35%, down from the full 37% marginal rate. A $1,000,000 cash contribution that previously saved $370,000 in federal tax now saves $350,000.

A Small Deduction for Non-Itemizers

The law created a permanent above-the-line deduction of up to $1,000 for single filers and $2,000 for joint filers on cash contributions, available to taxpayers who do not itemize. DAF contributions qualify. Most donors giving enough to justify opening a DAF will still come out ahead by itemizing.

Documentation That Protects the Deduction

Sloppy paperwork is the fastest way to lose a DAF deduction. The requirements step up at several dollar thresholds, and a missing document can void the deduction outright.

Written Acknowledgment at $250

For any single contribution of $250 or more, you need a contemporaneous written acknowledgment from the sponsor. It must state the cash amount or describe the non-cash property, and confirm whether the sponsor provided any goods or services in return.⁴ DAF contributions are irrevocable gifts with no goods or services back, and the acknowledgment should say so. “Contemporaneous” means you must have the document by the earlier of when you file or the filing deadline, extensions included.

Form 8283 at $500 in Non-Cash

If total non-cash contributions for the year exceed $500, Form 8283 goes with your return, even for publicly traded stock.⁸ The form asks for a description of the property, its fair market value, and your cost basis.

Qualified Appraisal at $5,000

Non-cash contributions claimed above $5,000 require a qualified appraisal and a completed Section B of Form 8283, signed by both the appraiser and the sponsor.⁹ Publicly traded securities are exempt from the appraisal, though Form 8283 is still required when total non-cash deductions exceed $500.⁶ At $500,000 or more, the appraisal itself must be attached to the return.

What the Deduction Does Not Cover

The deduction is for the contribution to the sponsor, not for whatever the DAF later funds. Grants that produce a personal benefit to you, the account advisor, or a related party trigger excise taxes on both the donor and the fund manager under IRC 4967. A benefit counts as more than incidental if receiving it as part of the original contribution would have reduced the deduction.¹⁰ Directing a DAF grant to a scholarship for your child, or to pay for a gala ticket that includes dinner, crosses the line.

You also cannot use a DAF distribution to satisfy a legally binding pledge you made personally. The IRS treats the distribution as producing a personal benefit because it extinguishes your legal obligation.

One more limit worth knowing: donors age 70½ and older can make qualified charitable distributions from an IRA to a charity and exclude the amount from taxable income, but under current law these distributions cannot go to a donor advised fund. Legislation has been introduced to change that. As of mid-2026, DAFs remain ineligible recipients for QCDs.

1
Internal Revenue Service. Donor-Advised Funds
2
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
3
Internal Revenue Service. Publication 526 – Charitable Contributions
4
Office of the Law Revision Counsel. 26 USC 170 – Charitable, Etc., Contributions and Gifts
5
Internal Revenue Service. Chief Counsel Advice 202302012
6
Office of the Law Revision Counsel. 26 USC 170 – Charitable, Etc., Contributions and Gifts
7
Internal Revenue Service. One Big Beautiful Bill Provisions
8
Internal Revenue Service. About Form 8283, Noncash Charitable Contributions
9
Internal Revenue Service. Instructions for Form 8283
10
Internal Revenue Service. Notice 2006-109 – Donor Advised Funds