Bunching charitable deductions means concentrating several years of planned giving into a single tax year so the total clears the standard deduction and itemizing becomes worthwhile, then taking the standard deduction in the off years. The strategy matters more for the 2026 tax year because a new rule limits how much of each year’s charitable giving counts.
Bunching front-loads two or more years of gifts into one year to exceed the 2026 standard deduction ($16,100 single, $32,200 married filing jointly; Source: IRS, Rev. Proc. 2025-32). A donor-advised fund can hold the bunched gift for later distribution. Starting in 2026, only charitable amounts above 0.5% of adjusted gross income are deductible (Source: 26 U.S.C. 170(b)(1)(I)).
What bunching charitable deductions means
Bunching charitable deductions is the practice of combining what would normally be several years of donations into one tax year, so the itemized total in that year exceeds the standard deduction, and then claiming the standard deduction in the intervening years. It shifts the timing of the tax benefit without changing how much a donor ultimately gives.
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The reason timing can matter is structural. Because the standard deduction now stands at a level that many filers do not exceed with their itemized deductions, filers who take the standard deduction receive no separate federal tax benefit from their charitable gifts (Source: IRS Pub 526, 2025). Concentrating gifts can push a single year above that threshold.
A worked example appears later in this guide. First, the threshold every bunching decision turns on.
The standard deduction is the threshold you must beat
The standard deduction is the flat amount any filer can subtract from income without itemizing, and it is the number bunched charitable deductions must exceed to produce a benefit. If a donor’s total itemized deductions in a year fall below it, itemizing that year adds nothing over simply taking the standard amount.
For 2026 the standard deduction is $16,100 for single filers and married filing separately, $32,200 for married filing jointly and surviving spouses, and $24,150 for head of household (Source: IRS, Rev. Proc. 2025-32, applicable to returns filed in 2027). For comparison, the 2025 figures were $15,750 single and $31,500 married filing jointly (Source: IRS, “IRS releases tax inflation adjustments for tax year 2026,” reflecting One Big Beautiful Bill Act amounts).
Itemized deductions typically combine state and local taxes (SALT), mortgage interest, and charitable gifts. When those other categories already sit close to the standard deduction, a bunched charitable gift can carry the total decisively over the line in the concentrated year.
| Filing status | 2025 standard deduction | 2026 standard deduction |
|---|---|---|
| Single / married filing separately | $15,750 | $16,100 |
| Married filing jointly / surviving spouse | $31,500 | $32,200 |
| Head of household | Not shown here | $24,150 |
The 2026 OBBBA rules that change the math
Two provisions of the One Big Beautiful Bill Act (P.L. 119-21) take effect for tax years beginning after December 31, 2025, and both bear directly on whether and how much to bunch. According to commentary on the Act, they are among the reasons the strategy is being reconsidered for 2026.
The new 0.5% of AGI floor
Beginning in 2026, an itemized charitable contribution is deductible only to the extent it exceeds 0.5% of the taxpayer’s contribution base, which is generally adjusted gross income (Source: 26 U.S.C. 170(b)(1)(I); IRS, 2026). In practical terms, the first half of one percent of AGI in charitable giving each year produces no itemized deduction.
Because the floor applies per year, it is a fixed annual haircut. Spreading the same total gifts across multiple years triggers the floor multiple times, while concentrating them into one year triggers it once. This is why the floor can strengthen the case for bunching rather than weaken it.
| Adjusted gross income | 0.5% AGI floor (annual non-deductible portion) |
|---|---|
| $200,000 | $1,000 |
| $300,000 | $1,500 |
| $500,000 | $2,500 |
The 35% cap on itemized deduction value
Also beginning in 2026, taxpayers in the top 37% bracket see the value of itemized deductions, including charitable gifts, effectively capped near 35%. The mechanism reduces itemized deductions by 2/37 of the lesser of total itemized deductions or the taxable income above the 37% bracket threshold (Source: 26 U.S.C. 68, as amended by OBBBA). The 2026 top bracket begins over $640,600 (single) and over $768,700 (married filing jointly) (Source: IRS, Rev. Proc. 2025-32).
The effect is that a top-bracket donor may receive roughly 35 cents of federal benefit per deducted dollar rather than 37 cents. For donors near or above those thresholds, the timing of a bunched gift can influence the rate at which the deduction is valued.
A worked before-and-after example
The example below shows a hypothetical married couple filing jointly for 2026 with $300,000 of AGI, $10,000 of annual charitable giving, $8,000 of SALT, and $9,000 of mortgage interest. It compares giving the same total either evenly across three years or bunched into one. Figures are illustrative and apply the 2026 standard deduction and 0.5% floor.
| Item | Annual giving (per year) | Bunched year (3 years combined) |
|---|---|---|
| Charitable gift before floor | $10,000 | $30,000 |
| Less 0.5% AGI floor | -$1,500 | -$1,500 |
| Deductible charitable amount | $8,500 | $28,500 |
| SALT + mortgage interest | $17,000 | $17,000 |
| Total itemized deductions | $25,500 | $45,500 |
| 2026 standard deduction (MFJ) | $32,200 | $32,200 |
| Deduction actually used | $32,200 (standard) | $45,500 (itemized) |
In the even-giving path, itemized deductions of $25,500 never beat the $32,200 standard deduction, so the charitable gifts add nothing in any of the three years. In the bunched year, itemized deductions reach $45,500, which is $13,300 above the standard deduction the couple would otherwise take. Across the two off years, the couple still claims the full standard deduction.
The 0.5% floor appears in both columns because it applies once per giving year. Note that it strikes the annual path three separate times if the couple were ever able to itemize, and the bunched path only once, which is part of why concentration can help.
How a donor-advised fund executes a bunched gift
A donor-advised fund (DAF) is a charitable account, offered by sponsors such as community foundations and financial-firm affiliates, that lets a donor take the full deduction in the year of contribution and recommend grants to operating charities in later years. It is the vehicle most commonly paired with bunching because it separates the tax-timing decision from the grant-timing decision.
The deduction is claimed on Schedule A (Form 1040) in the year the assets go into the DAF (Source: IRS Pub 526, 2025). Grants later paid out of the DAF to charities do not generate a second deduction, because the tax benefit was already taken at contribution. This lets a donor bunch several years of giving now while continuing steady support to charities afterward.
- Open a DAF account with a sponsoring organization.
- Contribute cash or appreciated assets, front-loading multiple years of intended giving into the current tax year.
- Claim the itemized charitable deduction on Schedule A for the contribution year, subject to the 2026 AGI limits and 0.5% floor.
- Recommend grants to chosen charities over the following years without further deduction.
- Take the standard deduction in those later off years.
Donating appreciated securities instead of cash
Contributing long-term appreciated securities such as stock, ETFs, or mutual fund shares, rather than cash, can serve two purposes at once: the donor may deduct the fair market value and generally avoids the capital gains tax that a sale would have triggered. Many donors fund a bunched DAF contribution this way.
The deduction limits differ by asset type. Cash gifts to public charities are deductible up to 60% of AGI, a limit made permanent beginning in 2026 (Source: 26 U.S.C. 170(b)(1)(G); IRS, 2026). Gifts of long-term appreciated property to public charities are generally limited to 30% of AGI (Source: IRS Pub 526, 2025). Amounts above the applicable limit carry forward up to five years (Source: IRS Pub 526, 2025).
Who tends to consider bunching, and how often
Bunching is most often discussed for donors whose annual itemized deductions hover just below the standard deduction, for people expecting a high-income or windfall year, and for those in the years before retirement when income and giving capacity may be higher. The common goal is to convert giving that would otherwise produce no deduction into a deductible event at least periodically.
On cadence, the strategy is frequently framed as a two-to-three-year cycle, and sometimes a two-to-five-year cycle, with the concentrated gift landing in a year the donor also expects higher income. The right interval depends on how far the other itemized deductions already sit from the standard deduction and on the donor’s giving budget.
| Situation | Why timing can matter |
|---|---|
| Deductions near the standard deduction | A bunched gift can push a single year over the threshold that steady giving never reaches. |
| High-income or windfall year | A larger deduction may offset income taxed at a higher rate. |
| Pre-retirement years | Giving capacity and marginal rates may be higher before income drops. |
The new off-year deduction for non-itemizers
Beginning in 2026, taxpayers who do not itemize may still deduct up to $1,000 (single) or $2,000 (married filing jointly) in cash donations to qualified organizations (Source: IRS, “New and enhanced deductions for individuals,” 2026; 26 U.S.C. 170(p)). This deduction is taken in computing taxable income and is limited to cash gifts.
This changes the arithmetic of bunching at the margin. In an off year, a donor taking the standard deduction can now also claim this modest write-off, so the incremental value of bunching is the itemized amount that clears both the standard deduction and this baseline, not the entire gift.
Bunching compared with QCDs and direct stock gifts
Bunching through a DAF is one of several giving approaches, and each interacts differently with the 2026 rules. A qualified charitable distribution (QCD) and a direct gift of appreciated stock can accomplish overlapping goals through different mechanics, which is why the choice is a decision framework rather than a single answer.
A QCD lets a donor age 70½ or older send funds directly from an IRA to charity. The annual exclusion limit is indexed and is $111,000 per person for 2026, up from $108,000 in 2025 (Source: IRS Notice 2025-67). Because a QCD reduces AGI directly and is not an itemized deduction, it bypasses both the standard deduction hurdle and the new 0.5% floor, which can make it attractive for eligible donors.
| Approach | Who it fits | Interaction with 2026 rules |
|---|---|---|
| Bunching via DAF | Itemizers concentrating multiple years of gifts | Must clear standard deduction; 0.5% floor applies in the bunched year |
| QCD from IRA | Donors 70½+ with IRA assets | Reduces AGI directly; not subject to standard deduction or 0.5% floor |
| Direct appreciated-stock gift | Donors holding low-basis long-term securities | Deductible up to 30% of AGI; may avoid capital gains tax |
How bunching can relate to Roth conversion years
Because a bunched charitable deduction lands in a single high-deduction year, some donors coordinate it with a year of higher taxable income. A Roth conversion adds ordinary income in the conversion year (Source: IRS Pub 590-A, 2025), so a bunched deduction taken in the same year may offset part of that added income; whether this fits depends on individual circumstances and is not a recommendation. Higher income in any year can also affect thresholds discussed in our research on the Medicare IRMAA 2026 brackets and the net investment income tax.
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Frequently asked questions
What is bunching charitable contributions?
Bunching charitable contributions means combining several years of planned giving into one tax year so the itemized total exceeds the standard deduction, then taking the standard deduction in the other years. For 2026 the standard deduction is $16,100 single and $32,200 married filing jointly (Source: IRS, Rev. Proc. 2025-32). A donor-advised fund often holds the concentrated gift.
Can I combine charitable donations from previous years?
Bunching concentrates future planned giving into one year rather than retroactively combining past donations, since each gift is deducted in the year it is made (Source: IRS Pub 526, 2025). Separately, charitable amounts that exceed the AGI percentage limits in a year may carry forward for up to five years (Source: IRS Pub 526, 2025).
How many years can you bunch charitable donations?
There is no fixed statutory number; donors commonly concentrate two to three years of giving, and sometimes up to five, into a single tax year. The practical limit is the AGI percentage cap in the bunched year (60% of AGI for cash to public charities in 2026), with excess carried forward up to five years (Source: 26 U.S.C. 170; IRS Pub 526, 2025).
What are noncash charitable contributions? Can I bunch them?
Noncash contributions are gifts of property such as stock, ETFs, mutual fund shares, or goods rather than money. Long-term appreciated securities can be bunched, often into a donor-advised fund, and may be deducted at fair market value up to 30% of AGI while potentially avoiding capital gains tax (Source: IRS Pub 526, 2025). Appraisal and reporting rules can apply.
How often should you bunch charitable donations?
Bunching is frequently framed as a two-to-three-year cycle, and sometimes two-to-five years, timed to a year of higher income. There is no single correct interval; it depends on how close a donor’s other itemized deductions sit to the standard deduction and on giving capacity (Source: IRS Pub 526, 2025). This is general information, not advice.
Is bunching charitable donations worth it?
Bunching may produce a benefit when the concentrated year’s itemized deductions exceed the standard deduction ($32,200 MFJ in 2026) by enough to outweigh taking the standard deduction each year (Source: IRS, Rev. Proc. 2025-32). The 2026 0.5% AGI floor applies once per giving year, which can favor concentration (Source: 26 U.S.C. 170(b)(1)(I)). Individual circumstances determine the outcome.
Should I be bunching charitable donations?
Whether bunching fits depends on how close a donor’s itemized deductions are to the standard deduction, expected income by year, and giving goals; it is one approach among several including QCDs for those 70½+ (Source: IRS Pub 590-B, 2025). This article is educational and not a recommendation; a qualified tax or financial professional can assess individual facts.
Sources
IRS, “IRS releases tax inflation adjustments for tax year 2026” (Rev. Proc. 2025-32): https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill
26 U.S.C. 170 (charitable deduction; 60% cash limit, 30% appreciated-property limit, 0.5% AGI floor), Cornell LII: https://www.law.cornell.edu/uscode/text/26/170
26 U.S.C. 68 (overall limitation on itemized deductions; 35% cap), Cornell LII: https://www.law.cornell.edu/uscode/text/26/68
IRS, “Understanding the One Big Beautiful Bill: Individual Tax Provisions”: https://www.irs.gov/newsroom/understanding-the-one-big-beautiful-bill-individual-tax-provisions-youtube-video-text-script
IRS, “New and enhanced deductions for individuals”: https://www.irs.gov/newsroom/new-and-enhanced-deductions-for-individuals
IRS Publication 526 (2025), Charitable Contributions: https://www.irs.gov/publications/p526
IRS Publication 590-A / 590-B (2025), IRAs and QCDs: https://www.irs.gov/publications/p590a and https://www.irs.gov/publications/p590b
IRS Notice 2025-67 (2026 QCD limit $111,000): https://www.irs.gov/pub/irs-drop/n-25-67.pdf
