Bunching charitable donations in 2026: when it still pays

By DecisionSheet · Updated October 16, 2026 · 2026 tax figures

Most households take the standard deduction, so most charitable gifts have earned no tax deduction at all. "Bunching" is the usual workaround: give two or three years of donations in one year, often into a donor-advised fund that pays the charities out later, itemize in that year, and take the standard deduction in the others. Year end is when it gets decided, because a gift counts in the year it is made.

Three changes from Pub. L. 119-21 apply for the first time in 2026, and two of them pull in opposite directions. DecisionSheet's charitable bunching calculator applies all three; this page runs it on five households.

What changed for 2026

A deduction for people who do not itemize. A taxpayer who takes the standard deduction can also deduct up to $1,000 ($2,000 on a joint return) of cash given to charity. Gifts to a donor-advised fund or a supporting organization do not count, and neither do gifts of property (26 U.S.C. §170(p); IRS summary). This makes giving every year worth something where it was worth nothing before, so bunching has more to beat.

A floor for people who do. An itemizer's charitable deduction counts only above 0.5% of AGI (§170(b)(1)(I)). At $150,000 of AGI that is the first $750 of gifts every year you itemize. Bunching pays the floor once per cycle instead of once a year.

A cap on itemized deductions in the top bracket. For a taxpayer in the 37% bracket, itemized deductions are cut by 2/37 of the lesser of the deductions and the income above where that bracket starts ($768,700 joint), after every other limit (26 U.S.C. §68). A deduction is worth about 35 cents on the dollar there, not 37 cents.

Two other figures set the bar bunching has to clear: the 2026 standard deduction of $32,200 on a joint return ($16,100 single), and the state and local tax (SALT) cap of $40,400, which shrinks by 30% of AGI over $505,000 but not below $10,000 (§164(b)(7)).

The example: a couple a little short of itemizing

The household. Married filing jointly, $150,000 of AGI, the same every year.
Deductions. $12,000 of state and local taxes and $14,000 of mortgage interest a year, $6,200 short of the standard deduction before any gifts.
The giving. $8,000 a year, or $16,000 given in 2026 and nothing in 2027.

Calculator summary tiles for a married couple with $150,000 of AGI, $12,000 of state and local taxes, $14,000 of other deductions and $8,000 a year of giving: bunching two years saves $1,111, giving every year saves $880 of tax, bunching $1,991, and the gap to itemizing is $6,200.

Every year. Itemizing would come to $33,250: the taxes and interest plus $7,250 of gifts, which is $8,000 less the $750 floor. That beats the bare standard deduction but not the standard deduction plus the $2,000 non-itemizer deduction, $34,200. So the couple takes the standard deduction both years, and only $2,000 of each year's gifts counts: $880 saved over two years, 5.5 cents per dollar given.

Bunched. In 2026 the $16,000 gift brings itemized deductions to $41,250, well above the $32,200 standard deduction. In 2027 the couple takes the standard deduction. Over the two years they deduct $73,450 instead of $68,400, all in the 22% bracket: $1,991 saved, 12.4 cents per dollar, and $1,111 more than giving every year. Open this scenario.

Year-by-year table for the same couple: giving $8,000 each year, the deduction is $34,200 and tax $14,900 in each of 2026 and 2027; bunched, $16,000 given in 2026 with $41,250 itemized and $13,349 of tax, then the $32,200 standard deduction and $15,340 in 2027.

Three years instead of two. Bunching $24,000 into 2026 and taking the standard deduction in 2027 and 2028 saves $2,426 over three years, $809 a year against $556 for two. The bigger gift pushes deeper past the standard deduction, though some of it now comes off income taxed at 12% rather than 22%. Open it.

When the new deduction makes it a wash

Lower the same couple's other deductions to $9,000 of taxes and $12,000 of interest, $11,200 short of the standard deduction. Giving every year still saves $880: the $2,000 deduction, twice, at 22%. Bunched, itemizing reaches $36,250, only $4,050 over the standard deduction, and saves $891. The difference is $11 over two years, inside the calculator's $25 tie band. Open it.

Before 2026 the every-year column would have been zero, and bunching would have won this case outright. The new deduction is small, but for a household near the line it is about what bunching adds.

The chart shows the same thing for the base couple across every gift size: bunching needs gifts of about $6,000 a year before it pulls ahead by more than the tie band, because below that the bunched year barely clears the standard deduction while the every-year gifts are already earning the $2,000 deduction. The lead peaks near $1,529 at about $9,000 a year, then shrinks: with large gifts the couple itemizes every year anyway, and a bunched gift big enough to push the bunched year down into the 12% bracket earns less per dollar than the same gifts spread over two 22% years. At $20,000 a year giving every year is ahead by $76.

Chart of the tax bunching saves over two years against the annual gift, from $0 to $20,000, for the same couple: below zero for small gifts, above zero from about $6,000 a year, peaking near $1,529 at about $9,000, and falling back below zero by $20,000.

When giving every year wins: retirees far below itemizing

A retired couple, both over 65, with $90,000 of AGI, $6,000 of state and local taxes and no mortgage. Their standard deduction is $35,500, the joint amount plus $1,650 for each spouse, and each also gets the $6,000 senior deduction whether or not they itemize (it phases out above $150,000 joint and ends after 2028).

They give $6,000 a year. Bunched, their $12,000 gift brings itemized deductions only to $17,550, nowhere near the standard deduction, and a gift to a donor-advised fund does not count for the non-itemizer deduction, so bunching saves nothing. Giving directly each year earns the $2,000 deduction both years, so giving every year wins by $480. Open it.

Retirees old enough to take a qualified charitable distribution from an IRA have a separate route: the distribution goes from the IRA straight to the charity and is left out of income, which helps whether or not they itemize. The calculator does not model it.

In the top bracket

A couple with $1,200,000 of AGI is far enough above $505,000 that their SALT deduction is at the $10,000 floor, whatever they pay. With $20,000 of other deductions and $50,000 a year of giving, they itemize every year, and the 2/37 rule takes $4,000 off each year's deductions ($6,703 in a bunched year). The floor is $6,000 a year at their income.

Bunching still saves $3,514 over two years. Two things produce it: paying the 0.5% floor once instead of twice, worth $5,676 of deduction after the 2/37 cut, and taking the $32,200 standard deduction in the empty year, $3,822 more than their taxes and interest would itemize to. Both are deducted at 37%. Open it.

What decides it

How far short of itemizing you are without gifts. Bunching only pays for the part of the bunched year that clears the standard deduction. A household $6,200 short with $8,000 a year of giving clears it comfortably; one $29,500 short does not.
The $1,000 / $2,000 non-itemizer deduction. It is the new floor on what giving every year is worth, and for small gifts it can be most of their value. It applies only to cash given straight to charity, not to a donor-advised fund.
The 0.5% floor. It costs every itemizer something every year, which bunching reduces. At high incomes that alone can justify bunching.
Your bracket in each year. A bunched gift large enough to drop part of the year's income into a lower bracket earns less per dollar.

Assumptions and limits

Federal income tax only, on the 2026 brackets and standard deductions in Rev. Proc. 2025-32 and the rules of Pub. L. 119-21 for taxable years beginning after December 31, 2025. All income is taxed as ordinary income; capital gains rates, the net investment income tax and the alternative minimum tax are not modeled.
AGI, taxes paid and other deductions are the same every year, and the 2026 figures are applied to each year of the cycle. Cycles are two or three years, the stretch in which the current SALT cap and the senior deduction both apply. Married filing jointly, single and head of household only.
Annual gifts are cash given directly to public charities; the bunched gift is cash to a donor-advised fund. Gifts of appreciated stock, which also avoid capital gains tax, are not modeled. Itemized cash gifts are deductible up to 60% of AGI; a carryover of any excess is not modeled.
State income tax is not modeled; many states have their own rules for itemizing and charitable gifts. Neither is the time value of giving earlier.
This is a model of tax rules, not tax advice. It assumes every gift goes to an organization eligible to receive deductible contributions and is properly documented.

Method and sources

The model is calculateCharitableBunching in the charitable bunching calculator. For each year it caps state and local taxes, applies the 0.5% floor and the 60% limit to gifts, adds the other deductions, applies the 2/37 limitation, and takes the larger of that and the standard deduction (plus the non-itemizer deduction for direct gifts), then the senior deduction, and computes tax on the progressive brackets. Every figure on this page is a total over the cycle from runs of the model on the inputs in the scenario links; a difference within $25 is reported as a tie. The statutory figures are read from the site's tax constants for 2026, and the calculator was cross-checked against an independent model of the same rules.

26 U.S.C. §170: the $1,000/$2,000 non-itemizer deduction (§170(p)) and its exclusion of donor-advised funds, the 0.5% floor (§170(b)(1)(I)) and the 60% limit on cash gifts (§170(b)(1)(G)), as amended by Pub. L. 119-21.
26 U.S.C. §68: the 2/37 limitation on itemized deductions for the 37% bracket.
26 U.S.C. §164(b)(7): the $40,400 SALT limit for 2026, the 30% reduction above $505,000 and the $10,000 floor.
26 U.S.C. §151(d)(5)(C): the $6,000 senior deduction and its phase-out; IRS, provisions for individuals, which confirms it is available to itemizers and non-itemizers alike.
IRS Publication 505 (2026): the 2026 SALT limit, the 0.5% floor and the limitation on itemized deductions above $768,700 joint.
IRS, One, Big, Beautiful Bill provisions: the non-itemizer deduction beginning with tax year 2026, and that donor-advised fund gifts do not qualify.
Rev. Proc. 2025-32: 2026 tax brackets, standard deductions (section 4.14) and the $1,650 additional standard deduction for age 65.

Open this scenario in the calculator

All figures on this page come from the Charitable Bunching calculator. Change any input there and the numbers update.