Bunching charitable deductions means concentrating two or more years of planned giving into a single tax year so the itemized total clears the standard deduction, then taking the standard deduction in the off years. The tactic changes the timing of the tax benefit, not the amount you give, and the 2026 rules under the One Big Beautiful Bill Act reshape the math behind it.
Bunching charitable deductions front-loads several 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), then takes the standard deduction the other years. A donor-advised fund holds the bunched gift for later granting. Starting in 2026, only charitable amounts above 0.5% of AGI 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 to charity.
Talk With Craig Wear's Team
Craig has helped IRA millionaires save over $1 million each in unnecessary taxes. Find out if a Roth conversion strategy fits your retirement, with no sales pressure and no product pitch.
The reason timing matters is structural. A filer who takes the standard deduction receives no separate federal tax benefit from charitable gifts (Source: IRS Pub 526, 2025). Concentrating several years of giving can push one year above the threshold, so the strategy is about the calendar, not the total amount given.
The standard deduction is the threshold you must beat
The standard deduction is the flat amount any filer subtracts from income without itemizing, and it is the number bunched charitable deductions must exceed to produce a benefit. For 2026 it is $16,100 for single filers, $32,200 for married filing jointly, and $24,150 for head of household (Source: IRS, Rev. Proc. 2025-32). If itemized deductions fall below it, itemizing adds nothing.
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 gift can carry the total over the line in the concentrated year while the off years still take the full standard amount.
| 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 | $23,625 | $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 bunching charitable deductions. A new 0.5% of AGI floor haircuts each year of giving, and a cap holds the value of itemized deductions near 35% for top-bracket donors. Together they push the arithmetic toward concentrating gifts.
The new 0.5% of AGI floor (a per-year haircut)
Beginning in 2026, an itemized charitable contribution is deductible only to the extent it exceeds 0.5% of the taxpayer’s contribution base, generally adjusted gross income (Source: 26 U.S.C. 170(b)(1)(I)). The first half of one percent of AGI in giving produces no deduction each year. Because the floor applies once per year, spreading gifts triggers it repeatedly while bunching triggers it a single time.
| 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 (top bracket)
Also beginning in 2026, taxpayers in the top 37% bracket see the value of itemized deductions, charitable gifts included, effectively capped near 35% (Source: 26 U.S.C. 68, as amended by OBBBA). The 2026 top bracket begins over $640,600 for single filers and over $768,700 for married filing jointly (Source: IRS, Rev. Proc. 2025-32), so a top-bracket donor may receive roughly 35 cents of federal benefit per deducted dollar rather than 37 cents.
A worked before-and-after example (annual vs bunched)
This example 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 evenly across three years versus bunching it into one, applying the 2026 standard deduction and the 0.5% floor. Figures are illustrative, not a projection of any individual result.
| Item | Annual giving (per year) | Bunched year (3 years combined) |
|---|---|---|
| Charitable gift before floor | $10,000 | $30,000 |
| Less 0.5% AGI floor | minus $1,500 | minus $1,500 |
| Deductible charitable amount | $8,500 | $28,500 |
| SALT plus 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 gifts add nothing in any year. In the bunched year, itemized deductions reach $45,500, which is $13,300 above the standard deduction, and the two off years still claim the full standard amount. The 0.5% floor strikes the annual path every giving year and the bunched path only once.
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 charitable deductions because it separates the tax-timing decision from the grant-timing decision.
The deduction is claimed on Schedule A (Form 1040) in the year assets go into the DAF (Source: IRS Pub 526, 2025). Grants later paid out do not generate a second deduction, because the benefit was already taken at contribution.
- 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 the 0.5% floor.
- Recommend grants to chosen charities over the following years without a 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 a sale would have triggered. Many donors fund a bunched DAF contribution this way, which pairs a larger one-year deduction with capital-gains relief.
The limits differ by asset. 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)). Gifts of long-term appreciated property are generally limited to 30% of AGI, with amounts above the applicable limit carried forward up to five years (Source: IRS Pub 526, 2025).
Who tends to consider bunching, and how often
Bunching charitable deductions 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 higher-income year. The right interval depends on how far other itemized deductions sit from the standard deduction and on the 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: 26 U.S.C. 170(p); IRS, “New and enhanced deductions for individuals,” 2026). This write-off is taken in computing taxable income and is limited to cash gifts.
This shrinks the marginal value of bunching. In an off year, a donor taking the standard deduction can now also claim this cash deduction, so the incremental benefit of bunching is only 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 charitable deductions 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 reach overlapping goals through different mechanics, so the choice is a decision framework rather than a single answer. The matrix below sets the three side by side.
A QCD lets a donor age 70½ or older send funds directly from an IRA, not a 401(k), to charity. The annual exclusion 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.
| Approach | Who it fits | Interaction with 2026 rules |
|---|---|---|
| Bunching via DAF | Itemizers concentrating multiple years of gifts | Must clear the standard deduction; 0.5% floor applies in the bunched year |
| QCD from IRA | Donors 70½ or older with IRA assets | Reduces AGI directly; not subject to the 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, so a bunched deduction taken in the same year may offset part of that income. The pairing depends on your circumstances and how much you plan to convert.
Deciding how much to convert to Roth sets the income a bunched gift could offset, and both actions share a December 31 deadline. Higher income can also touch thresholds such as the net investment income tax, which a deduction does not itself remove. None of this is a recommendation.
Work with Q3 Advisors
Q3 Advisors is a registered investment adviser focused on retirement tax planning. This page is educational and is not advice; consult a qualified professional.
Frequently asked questions
What is donation bunching?
Donation bunching, also called bunching charitable deductions, 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.
How does charitable bunching work?
You front-load two or more years of gifts into one year, usually into a donor-advised fund, and itemize on Schedule A that year, then take the standard deduction and grant to charities in the off years (Source: IRS Pub 526, 2025). For 2026, only charitable amounts above 0.5% of AGI are deductible, so the once-per-year floor favors concentration.
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, which is a different mechanism from bunching.
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 any 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 help 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, though the new off-year cash deduction narrows the spread. Individual circumstances determine the outcome.
Should I be bunching charitable donations?
Whether bunching fits depends on how close your itemized deductions are to the standard deduction, your expected income by year, and your giving goals; it is one approach among several, including QCDs for those 70½ or older (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, “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-B (2025), IRAs and QCDs: 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
