2026 Charitable Deduction Changes: New $1,000 Nonitemizer Deduction, 0.5% AGI Floor for Itemizers, and the C-Corp Haircut
2026 Charitable Deduction: What changed in 2026: a quick map of the OBBBA charitable rules
For 2026 Charitable Deduction, oBBBA touched four different charitable deduction provisions in the Internal Revenue Code. The biggest structural change is the new section 170(p) above-the-line deduction for nonitemizers, which restores (and modifies) the universal charitable deduction that briefly existed under the CARES Act in 2020 and 2021. For 2026, a single filer who takes the standard deduction can still deduct up to $1,000 of qualifying cash gifts. A married couple filing jointly can deduct up to $2,000. This sits on Schedule 1 as an adjustment to income, which means it reduces AGI itself, not just taxable income. That matters for any income-sensitive calculation that keys off AGI: Roth IRA phase-outs, the 3.8% net investment income tax threshold, state tax piggy-back computations, and Medicare IRMAA brackets in two years.
On the itemizer side, OBBBA inserted a new section 170(p) (no, that’s not a typo, the statute uses overlapping subsection letters across the bill) imposing a 0.5% AGI floor on individual charitable deductions claimed on Schedule A. Mechanically, you tally all your qualifying contributions for the year, subtract 0.5% of your AGI, and only the excess hits Schedule A. The floor applies before the percentage-of-AGI ceilings (60% for cash to public charities, 30% for appreciated long-term capital gain property, etc.), so the math runs floor first, then ceiling. The 0.5% number sounds small until you start plugging in real incomes. At $300,000 AGI, you lose the first $1,500. At $1 million AGI, you lose the first $5,000. Every year. Forever, under current law.
C-corporations got their own version of this haircut. The pre-OBBBA rule already capped corporate charitable deductions at 10% of taxable income with a five-year carryforward. OBBBA added a 1% taxable income floor underneath that ceiling. A C-corp with $10 million of taxable income now loses the first $100,000 of charitable giving before any deduction is allowed. The 10% ceiling still caps the top. And OBBBA eliminated the five-year carryforward for amounts disallowed by the new floor, although the existing five-year carryforward for amounts disallowed by the 10% ceiling continues to apply. The distinction is subtle and important: floor-disallowed contributions are gone forever, ceiling-disallowed contributions still carry. Recordkeeping just got more complicated.
The new $1,000 nonitemizer deduction explained
If you take the standard deduction in 2026 (most filers do, since the standard deduction is roughly $16,100 for single filers and $31,500 for joint filers under OBBBA), you can still claim up to $1,000 of cash charitable contributions as an above-the-line deduction. Married filing jointly is $2,000. Married filing separately is $500 each. Head of household is $1,000. The deduction goes on Schedule 1, line 12 (line numbers are still tentative pending the 2026 Form 1040 draft from the IRS), and it reduces AGI directly.
The mechanical requirements are strict. Only cash contributions count. Cash includes checks, credit card charges, payroll deduction giving, and electronic transfers, but it does not include donations of stock, used clothing, household goods, vehicles, real estate, or volunteer mileage. The recipient must be a qualifying public charity under section 170(b)(1)(A), which excludes private nonoperating foundations, donor-advised funds (DAFs), and supporting organizations under section 509(a)(3). So no, you cannot route the $1,000 through your DAF to capture the nonitemizer deduction. That carve-out is intentional. Congress wanted the deduction to flow to working public charities, not to investment vehicles that delay grants to those charities.
The deduction stacks with the standard deduction. You do not have to choose between them. A married couple in the 22% federal bracket with $2,000 of qualifying cash gifts saves $440 in federal tax just from the new deduction. That is a real number for households earning $100,000 to $150,000, which is the income band where most users of this deduction will live. The deduction phases out for nobody. There is no AGI cap, no high-income clawback. A $5 million-AGI filer who somehow took the standard deduction (rare, but possible if they had no itemizable expenses) would still get the full $1,000 or $2,000 deduction. Document everything: bank record or written acknowledgement from the charity for any single gift of $250 or more, just like under the regular charitable deduction rules in section 170(f)(8).
The 0.5% AGI floor for itemizers: what it costs you
The 0.5% AGI floor for itemized charitable deductions is one of those quiet provisions that gets less attention than it deserves. The mechanics are simple. Total your qualifying contributions for the year. Compute 0.5% of your AGI. Subtract. The difference is what you carry to Schedule A, subject to the regular 60%/30%/20% ceilings. The floor applies to all categories of charitable gifts: cash, appreciated stock, real estate, qualified conservation contributions, the works. Every form of charitable giving feeds the same pot, and the floor strips the first 0.5% of AGI off the top.
Run the numbers at typical itemizer incomes. A New York City household with $400,000 of AGI and $25,000 of charitable giving loses $2,000 to the floor. At a 35% combined federal and New York State marginal rate, that is $700 of additional tax for the same charitable behavior. A $750,000-AGI household giving $50,000 a year loses $3,750 to the floor, or roughly $1,575 in extra federal tax at 37% (state piggy-back varies). A $2 million-AGI household giving $150,000 a year loses $10,000 to the floor, costing about $3,700 in federal tax. The dollar impact is modest in percentage terms but real. Over a 20-year giving horizon for a high-AGI household, the cumulative cost runs into six figures.
There is no exception for unusual income years. If you sell a business in 2026 and your AGI spikes to $5 million for that single year, your 0.5% floor for that year is $25,000. Your normal $30,000 annual giving in that liquidity year produces only a $5,000 deduction net of the floor. Worse, OBBBA’s elimination of the five-year carryforward for amounts disallowed by the floor means that $25,000 is gone, not deferred. Plan around the floor in high-income years by either accelerating gifts into the spike year (so the floor only applies once instead of being a percentage of a much smaller normal-year AGI) or by funding a donor-advised fund or private foundation in the spike year, which converts a single-year giving decision into a multi-year grant strategy.
The C-corp 1% floor: small floor, real impact at scale
C-corporations have always had their own charitable contribution rules under section 170(b)(2). The ceiling is 10% of taxable income (computed without regard to the charitable deduction itself, the dividends-received deduction, and a few other items). Contributions above the 10% ceiling carry forward for five years. OBBBA layered a new 1% taxable income floor underneath the existing ceiling. The corporation now deducts contributions only to the extent they exceed 1% of taxable income, then subject to the 10% ceiling on the remainder.
Worked example. A C-corp with $20 million of taxable income gives $1.5 million to charity in 2026. The 1% floor strips off $200,000. The remaining $1.3 million is then tested against the 10% ceiling ($2 million), which it clears. Deductible amount: $1.3 million. Compare to the pre-OBBBA result, where the full $1.5 million would have been deductible (assuming no other carryforward complications). The tax cost on the lost $200,000 deduction at the flat 21% corporate rate is $42,000. Multiply that by every year the corporation gives at this level. For a public company with a structured corporate philanthropy program, the floor is a permanent drag on the after-tax cost of giving.
Closely-held C-corps face the same rules, and the planning answer is often to push philanthropy down to the shareholder level instead. If the corporation distributes the cash as a dividend (subject to the 23.8% top federal rate on qualified dividends including the 3.8% net investment income tax) and the shareholder makes the gift personally, the shareholder is subject to the individual 0.5% floor instead of the corporate 1% floor. That is sometimes worse, sometimes better, depending on the shareholder’s AGI and the corporation’s taxable income. For S-corps and partnerships, the floor flows through to the individual partners and shareholders, who apply the 0.5% individual floor on their personal returns. There is no entity-level charitable deduction floor for pass-throughs.
Loss of the 5-year carryforward for floor-disallowed amounts
Before OBBBA, charitable contributions that exceeded the percentage-of-AGI ceiling carried forward for up to five years. A taxpayer who gave 80% of AGI in a single year (perhaps after a business sale) could deduct 60% in the current year and carry the remaining 20% forward against the next five years’ AGI ceilings. The five-year carryforward under section 170(d) is still alive and well for ceiling-disallowed amounts. What OBBBA killed is any carryforward for amounts disallowed by the new 0.5% individual floor or the 1% C-corp floor.
The distinction matters in practice. Suppose a taxpayer with $500,000 AGI gives $310,000 of cash to public charity in 2026. The 0.5% floor disallows $2,500. The 60% AGI ceiling allows up to $300,000 of cash gifts. The remaining $7,500 above the ceiling carries forward five years. The $2,500 stripped by the floor does not carry. It is gone. On a five-year horizon, the floor-disallowed amount has been permanently lost, while the ceiling-disallowed amount may be fully recovered against future-year AGI.
There is one practical mitigation. If you expect a year with unusually high AGI (a Roth conversion year, a business exit, a stock vesting year), accelerate charitable giving into that year if possible. The 0.5% floor scales with AGI, so a $1 million spike-year AGI has a $5,000 floor. But the floor is fixed at the spike-year level, not pro-rated across years. If you would otherwise give $50,000 a year for the next five years (five separate $5,000 floors, $25,000 of total disallowed amount on a $2 million AGI over five years), and instead you front-load all $250,000 of giving into the spike year, you absorb only one $5,000 floor. You save $20,000 of lost deductions. The DAF is the vehicle of choice for this maneuver because the contribution to the DAF locks in the deduction year while leaving the actual grants to operating charities flexible across future years.
Donor-Advised Fund bunching strategy: still works, with a twist
The DAF bunching strategy has been the standard high-income planning response to the TCJA-era expanded standard deduction since 2018. The idea: instead of giving $20,000 a year and barely clearing the standard deduction threshold, fund a DAF with $100,000 in year one, itemize that year, then take the standard deduction for the next four years while the DAF grants out the original contribution at the same $20,000 per year pace. The federal tax math under TCJA favored the bunch by roughly $5,000 to $15,000 over five years for typical high-AGI households.
Under OBBBA, the bunching strategy still works, but the dollar advantage shifts. The new 0.5% floor cuts into bunched gifts the same way it cuts into annual giving. A $100,000 bunch at $500,000 AGI loses $2,500 to the floor in the bunch year, but only $2,500. The same $100,000 spread over five years at $20,000 a year loses $2,500 a year, or $12,500 total. So bunching saves $10,000 of floor-disallowed deduction relative to ratable giving. That is on top of the existing TCJA-era bunch benefit. The math now favors bunching even more aggressively than under TCJA.
Two cautions. First, the nonitemizer $1,000/$2,000 deduction is unavailable in the years you bunch (because you’re itemizing) and unavailable in the off-years for gifts routed through your DAF (because grants from a DAF are not deductible by the donor, and the carve-out for donor-advised fund contributions blocks the nonitemizer deduction). If you bunch into a DAF, you give up four years of $2,000 nonitemizer deductions to capture one year of accelerated itemized deduction. At 22% federal, that is $1,760 of foregone tax savings over the cycle. The bunch still wins for taxpayers in the 32%-37% brackets with significant giving capacity, but the breakeven is higher than it was. Second, the IRS scrutinizes DAFs that fail to make grants. Although there is no statutory minimum distribution requirement for DAFs (yet, although it has been proposed in Congress), a DAF that holds contributions indefinitely without granting can attract audit attention under existing private benefit and self-dealing rules. Granting at least 5% of the DAF balance annually is the customary safe-harbor benchmark used by most sponsoring organizations.
Cash versus stock versus property: what to give in 2026
The asset you give matters more than the dollar amount in many cases. Cash gifts to public charity remain deductible up to 60% of AGI. Appreciated long-term capital gain stock or other publicly traded securities are deductible at fair market value up to 30% of AGI, and the donor avoids capital gains tax on the unrealized appreciation. Real estate, art, and other appreciated property follow the same 30% ceiling but require a qualified appraisal for gifts above $5,000 (above $20,000 for art, and the IRS will refer items above $50,000 to its Art Advisory Panel under section 170(f)(11)).
For high-income donors, appreciated long-term securities remain the most tax-efficient asset to give. A $50,000 gift of stock with a $10,000 basis saves the donor not just $50,000 of itemized deduction (less the 0.5% AGI floor) but also avoids $9,520 of federal capital gains tax at the 23.8% rate (20% long-term capital gains plus 3.8% net investment income tax). Combined federal benefit at a 37% bracket: roughly $18,500 of deduction value plus $9,520 of avoided gains tax, on a single $50,000 contribution. The 0.5% AGI floor cuts the deduction value slightly, but the avoided capital gains tax is unaffected by the floor.
Cars, boats, used clothing, and household goods are the worst category for high-income donors. Vehicles donated to charity are deductible at the lower of fair market value or the actual proceeds the charity receives at auction, which is usually 30-40% of Kelley Blue Book retail (section 170(f)(12)). Household goods must be in good used condition or better to qualify at all. And the IRS audits these categories aggressively at high income levels. Donor-friendly assets, in order of efficiency: appreciated long-term marketable securities, then private equity interests with low basis (if accepted by the charity), then real estate (subject to appraisal cost), then cash. Avoid donating depreciated property; sell it, realize the loss, and donate the cash.
Strategic implications by income level
Below roughly $200,000 of AGI, the OBBBA charitable changes are net positive. The new $1,000/$2,000 nonitemizer deduction provides a deduction that simply did not exist for these filers in 2025. Most filers in this band take the standard deduction, do not itemize, and never deducted any charitable giving. The new above-the-line deduction is pure upside. Strategy: give at least $1,000 in cash to public charity each year (or $2,000 for joint filers) to make the most of the new deduction. Document with bank records or written acknowledgements for any gift over $250.
Between roughly $200,000 and $1 million of AGI, the calculus depends on giving level. Modest givers (less than 2% of AGI) generally take the standard deduction and lose access to charitable benefits beyond the $1,000/$2,000 nonitemizer deduction. Heavy givers (5%+ of AGI) typically itemize, get hit by the 0.5% floor, but still extract significant tax benefit from giving appreciated securities. The DAF bunching strategy is most powerful in this band, since these households can usually afford to consolidate three to five years of giving into one bunch year. Strategy: bunch every three to five years into a DAF, fund the DAF with long-term appreciated securities rather than cash, and target the bunch year to coincide with high-AGI events when possible.
Above $1 million of AGI, the 0.5% floor starts to bite in absolute dollars. A $5,000+ permanent loss every year compounds over a giving horizon. Strategy: combine DAF bunching with a private foundation for very large givers who want family involvement and granting control. The private foundation has its own complications (5% minimum distribution requirement under section 4942, lower 30% AGI ceiling for cash gifts to private nonoperating foundations, excise tax on net investment income), but it provides more flexibility than a DAF for unusual assets and structured family philanthropy. For households selling a business or experiencing a one-time liquidity event, fund the DAF or foundation in the spike-AGI year to capture the bunch benefit and absorb only a single floor. Pair the gift with a Qualified Charitable Distribution (QCD) from IRAs after age 70 1/2 if applicable, since QCDs of up to $111,000 per person in 2026 bypass the charitable floor entirely and reduce taxable IRA income directly.
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Frequently Asked Questions
What is the new 2026 charitable deduction for nonitemizers?
The 2026 nonitemizer charitable deduction is a new above-the-line deduction enacted by Section 70424 of the One Big Beautiful Bill Act (OBBBA, Public Law 119—21). For tax years beginning after December 31, 2025, a taxpayer who takes the standard deduction can also deduct up to $1,000 of qualifying cash contributions to public charities ($2,000 for married couples filing jointly, $500 for married filing separately, $1,000 for head of household). The deduction reduces adjusted gross income (AGI), not just taxable income, which makes it more valuable than a Schedule A itemized deduction of the same size because AGI feeds into dozens of other tax computations. This restores, in modified form, the universal charitable deduction that existed only briefly during 2020 and 2021 under the CARES Act and the Consolidated Appropriations Act of 2021.
The eligibility rules are strict. The contribution must be in cash, which includes checks, credit card charges, payroll deduction giving, and electronic funds transfers, but excludes donations of stock, securities, vehicles, real estate, used clothing, household goods, and volunteer mileage. The recipient must be a qualifying public charity under Internal Revenue Code section 170(b)(1)(A). That category includes churches, schools, hospitals, government units, and most operating 501(c)(3) public charities. It excludes private nonoperating foundations, donor-advised funds, and Type III non-functionally-integrated supporting organizations under section 509(a)(3). The exclusion of DAFs is the most-debated piece of the rule and is intentional: Congress wanted the deduction to flow to charities doing direct charitable work, not to investment vehicles that warehouse contributions before regranting.
Common mistakes will be predictable. Taxpayers will try to claim the deduction for noncash gifts (drop-off donations to Goodwill or the Salvation Army) and the IRS will deny those claims on examination. Taxpayers will try to route contributions through their DAF (Fidelity Charitable, Schwab Charitable, Vanguard Charitable, or a community foundation DAF) and discover at filing time that those contributions do not qualify. Taxpayers will fail to obtain the contemporaneous written acknowledgement required under section 170(f)(8) for any single gift of $250 or more (the rule that applies to itemized deductions also applies to the nonitemizer deduction). The acknowledgement must be in hand before the earlier of the return filing date or the original due date including extensions. An acknowledgement obtained during an audit will not save the deduction.
Dollar examples ground the math. A married couple with $120,000 of AGI in the 22% federal bracket and a 5% New York State marginal rate who gives $2,000 in cash to their local church saves $440 in federal tax and $100 in state tax (since New York piggy-backs on federal AGI for the New York adjusted gross income computation). Total tax benefit: $540 on a $2,000 gift. A single filer with $80,000 AGI in the 12% federal bracket and 5% state who gives $1,000 saves $120 federal plus $50 state, or $170. The deduction is uncapped at the high end (no AGI phase-out), so a $5 million-AGI filer who somehow takes the standard deduction would still get the full $1,000 or $2,000. In practice, very few high-income filers take the standard deduction because their state and local taxes ($40,000 SALT cap), mortgage interest, and charitable giving easily exceed the standard deduction.
Documentation requirements track the existing rules for charitable deductions. For gifts under $250, a bank record (canceled check, credit card statement, electronic transfer record) is sufficient. For gifts of $250 or more, the donor must obtain a contemporaneous written acknowledgement from the charity that states the amount of cash contributed, whether the donor received any goods or services in return, and a description and good-faith estimate of any such goods or services. The acknowledgement must be received by the earlier of (a) the date the donor files the return, or (b) the due date including extensions for filing the return. The IRS routinely denies charitable deductions on examination where the taxpayer cannot produce a qualifying acknowledgement, even when the underlying gift clearly occurred. Keep all acknowledgements in a single folder, organized by tax year, with the bank records attached.
Audit risk for the new nonitemizer deduction is likely to be low at the $1,000-$2,000 level. The IRS deploys examination resources where the dollars warrant, and a $1,000 deduction generates at most $370 of additional tax even at the top federal rate (more typically $120-$240 for taxpayers in the income range that uses this deduction). The bigger audit risk is for filers who claim the nonitemizer deduction in addition to itemizing on Schedule A, which is not allowed. A taxpayer cannot use both the standard deduction (which the new charitable deduction requires) and itemized deductions. IRS computer matching will flag this conflict on filed returns and generate automated correction notices. Expect a corresponding cleanup pass within 12-18 months of filing.
Mistakes around timing will also trigger notices. Cash contributions are deductible in the year delivered to the charity, which for checks means the date of mailing if mailed by year-end (delivery date for hand-delivered checks). Credit card charges are deductible in the year the charge is incurred, even if the card balance is not paid until the following year. Electronic funds transfers are deductible when the transfer is initiated and the funds leave the donor’s account. December 31 cutoff games (mailing a check on January 2 backdated to December 30) are a common audit topic. Use Certified Mail with delivery confirmation for year-end gifts to large charities, or make the gift online by credit card on December 31.
The value the Reed Corporation adds. For most filers in the income band that uses the nonitemizer deduction, the dollars are modest and the rules are simple enough to handle without professional help. Our value-add starts when the deduction interacts with other planning decisions: whether to bunch and itemize this year or take the standard deduction and use the nonitemizer deduction, whether to give cash or appreciated securities (the latter cannot be used for the nonitemizer deduction but is far more efficient for itemizers), whether to fund a DAF for future bunching, and how to coordinate charitable giving with Qualified Charitable Distributions from IRAs after age 70 1/2. We model the multi-year scenario for clients with material giving, document the projected tax savings under each path, and recommend the structure that produces the largest after-tax retained value across a 3-5 year horizon. The annual return preparation captures the chosen strategy on the correct line of Schedule 1.
If you give annually to charity at any level, the 2026 changes warrant a conversation. We help our clients understand which deduction applies to their situation, plan the year-end giving to make the most of the after-tax benefit, document the gifts to survive an examination, and coordinate the charitable strategy with the larger plan around retirement contributions, Roth conversions, business income deferral, and estate planning. The new $1,000/$2,000 nonitemizer deduction is one piece of a larger puzzle, and the puzzle changes every year.
How does the 0.5% AGI floor on the 2026 charitable deduction work for itemizers?
The 0.5% AGI floor is a new statutory limitation enacted by OBBBA that disallows the first 0.5% of adjusted gross income worth of charitable contributions for individual taxpayers who itemize on Schedule A. Mechanically, you compute your total qualifying charitable contributions for the year, subtract 0.5% of your AGI, and only the excess flows to Schedule A. The floor applies before the percentage-of-AGI ceilings already in section 170(b), which cap deductible cash gifts to public charity at 60% of AGI, appreciated long-term capital gain property at 30% of AGI, and gifts to private nonoperating foundations at 30% (cash) or 20% (appreciated property). The math runs floor first, then ceiling, then carryforward calculation for any excess above the ceiling.
The floor applies to all categories of charitable gifts in a single pot. You do not get a separate 0.5% floor for cash gifts and another for stock gifts. Total all qualifying contributions, subtract 0.5% of AGI once, and allocate the remainder across the gift categories for the percentage-ceiling calculation. The ordering rules in the existing regulations under section 170 govern which category absorbs the floor disallowance, and we expect the IRS to issue guidance clarifying that the floor is applied proportionally across categories rather than pulling from the highest-ceiling category first. Until that guidance arrives, the safest interpretation is proportional allocation, which we use in our planning software.
Exceptions are narrow. Qualified Charitable Distributions (QCDs) from IRAs for taxpayers age 70 1/2 and older bypass the charitable floor entirely because QCDs are not itemized deductions; they reduce taxable IRA distributions directly. The QCD limit increases to $111,000 per person in 2026 under existing inflation adjustments to section 408(d)(8). For taxpayers in retirement with required minimum distributions, the QCD is now even more valuable post-OBBBA because it sidesteps the 0.5% floor that would otherwise reduce equivalent cash giving from non-IRA sources. The nonitemizer $1,000/$2,000 deduction also does not interact with the floor, because the floor applies only to itemized deductions on Schedule A. Taxpayers who take the standard deduction get the full $1,000/$2,000 nonitemizer benefit with no floor.
Common mistakes will compound over multiple years. The first is failing to plan around the floor in years with unusual income spikes. A $2 million AGI year produces a $10,000 floor. A normal-year giver who happens to give $10,000 in a $2 million-AGI year captures zero deduction. The floor swallows the entire gift. The second mistake is ignoring the elimination of the carryforward for floor-disallowed amounts. The 0.5% floor cuts permanently. The five-year carryforward under section 170(d) survives for amounts disallowed by the percentage ceilings (60%, 30%, 20%), but amounts disallowed by the new floor are not carryforward-eligible. Lost forever. The third mistake is splitting gifts across multiple years to avoid percentage-of-AGI ceilings, which now creates multiple floor hits. Bunching into fewer years usually wins.
Dollar examples by income level. A New York City household with $250,000 of AGI and $15,000 of charitable giving loses $1,250 to the floor. At a 35% combined federal and New York rate, that’s $437 of additional tax annually. A $500,000-AGI California household with $30,000 of annual giving loses $2,500 to the floor, or roughly $900 to $1,000 of additional federal and state tax. A $1.5 million-AGI Florida household (no state tax) giving $100,000 a year loses $7,500 to the floor, or about $2,775 of additional federal tax at 37%. A $5 million-AGI year (business sale or large stock vesting) producing a $25,000 floor on $30,000 of normal-year giving destroys $9,250 of after-tax value at the top federal rate. The percentage feels small, but the absolute dollars matter and they compound annually.
Documentation requirements are unchanged. Every cash gift of $250 or more requires contemporaneous written acknowledgement from the charity. Noncash gifts above $500 require Form 8283. Noncash gifts above $5,000 require a qualified appraisal (with the appraisal summary on Form 8283, Section B). Vehicles require Form 1098-C from the charity (or written acknowledgement meeting the same content requirements). Real estate and art above $20,000 require attachment of the full qualified appraisal to the return. None of this changed under OBBBA, but the lower deductible amount per dollar given means each documentation lapse costs more in percentage terms.
Audit risk concentrates in three areas under the new regime. First, taxpayers who claim large noncash deductions just above the appraisal thresholds ($5,000 and $20,000) without obtaining proper appraisals will draw automated examination letters. Second, charitable contribution percentages above 20% of AGI trigger IRS attention regardless of substantiation quality. The Discriminant Function Score (DIF) algorithm flags returns with charitable deductions outside the statistical norm for the income range. Third, conservation easement deductions remain a heavily-litigated category, and OBBBA did not change the substantive rules for conservation easements (the 2.5x basis safe harbor and partnership-level disallowances added by previous legislation remain in effect). Substantiation must be airtight in all three areas.
The Reed Corporation value-add. We model the multi-year impact of the floor for every client with material charitable giving. The basic question we answer in planning sessions: in any given five-year horizon, should the client give annually (incurring five separate 0.5% floor hits) or bunch into one or two years (incurring one or two floor hits)? The answer depends on the client’s income volatility, the assets available for giving, and the client’s giving priorities. For clients in stable high-income situations, bunching every three years is usually optimal. For clients with high-volatility income (founders, partners at PE/VC firms, executives with stock-based comp), we coordinate the giving with the predicted income spike years.
Worked planning example. A married couple with $750,000 of AGI in each of years 2026-2030 and $50,000 of annual charitable giving capacity. Annual giving: five separate $3,750 floor hits = $18,750 of permanently disallowed deductions, costing $6,938 of federal tax at 37% across the five-year period. Bunch into year 2026: $250,000 contribution to DAF, single $3,750 floor, $246,250 deductible (subject to 60% cash ceiling at $450,000, so all $246,250 deductible). Floor cost: $3,750, or $1,388 of federal tax. Savings from bunching: $5,550 of federal tax over five years on the same total giving. Add the standard-deduction-vs-itemizing benefit in the off years (standard deduction approximately $33,000 in 2026 dollars vs estimated $50,000 of itemized in normal years), and the bunch generates an additional $1,500-$2,000 of off-year benefit per year. Total bunch benefit: roughly $13,000-$15,000 over five years.
The takeaway. The 0.5% floor is a small percentage in isolation, but the structural elimination of the carryforward and the permanent disallowance mean every charitable dollar deserves more planning attention in 2026 and beyond. We work with clients to model the multi-year picture, choose a giving cadence that minimizes floor losses, and pair the strategy with appreciated-asset gifts, DAF funding, and QCD coordination after age 70 1/2.
Can C-corps still deduct charitable donations under the 2026 rules?
Yes, C-corporations can still deduct charitable contributions in 2026, but the deduction now sits between a floor and a ceiling. OBBBA imposed a new 1% taxable income floor on corporate charitable contributions under section 170(b)(2). The pre-existing 10% taxable income ceiling continues to apply. The mechanical sequence: compute the corporation’s taxable income (without regard to the charitable deduction itself, the dividends-received deduction, and a few other adjustments specified in section 170(b)(2)(B)). Total the qualifying charitable contributions made during the year. Subtract 1% of the adjusted taxable income (the floor). If the remainder is positive, it is deductible up to 10% of adjusted taxable income (the ceiling). Excess above the ceiling carries forward five years under existing section 170(d)(2) rules.
The key change from pre-OBBBA law is the loss of carryforward for floor-disallowed amounts. Before 2026, every charitable contribution by a C-corp either fit within the 10% ceiling (deductible) or exceeded it (deductible over the next five years). Nothing was permanently lost short of the five-year carryforward expiration. Under OBBBA, amounts disallowed by the 1% floor are gone immediately. They do not carry. They do not get added to the next year’s contributions. They are permanently nondeductible. Contributions that clear the floor but exceed the 10% ceiling continue to carry forward five years under the unchanged section 170(d)(2). Tracking the two categories of disallowed amounts separately is essential for accurate tax provision and return preparation.
Worked example. A C-corp with $50 million of taxable income (computed before the charitable deduction and other section 170(b)(2)(B) items) makes $3 million of qualifying charitable contributions in 2026. The 1% floor disallows $500,000 permanently. The remaining $2.5 million is tested against the 10% ceiling ($5 million), which it clears. Current-year deduction: $2.5 million. Permanently lost: $500,000. At the 21% flat corporate rate, the permanent loss costs the corporation $105,000 of federal tax. Compare to pre-OBBBA, where the full $3 million would have been deductible (no floor existed) and the corporation would have saved $630,000 of federal tax instead of $525,000.
Exceptions and special rules. Qualified conservation contributions by C-corporations remain subject to a separate 10% (or in some cases 100%) taxable income limitation under section 170(b)(2)(B) and the recently-amended rules in section 170(h). OBBBA did not amend the substantive conservation easement rules. Inventory contributions by C-corps to qualifying charitable organizations under section 170(e)(3) (food inventory) or section 170(e)(4) (scientific property) follow their own enhanced-deduction rules with separate ceilings. These specialized rules continue to operate alongside the new 1% floor, which applies to all categories of qualifying contributions in a single pot before the percentage-ceiling math runs.
Common C-corp mistakes will fall into three buckets. First, failing to coordinate the charitable timing with the tax year. C-corps using a fiscal year other than the calendar year apply the 1% floor based on taxable income for that fiscal year. Multi-entity groups (parent-subsidiary, brother-sister) may have different fiscal years and different floor calculations. Consolidated groups under section 1501 apply the floor on a group basis, not entity basis, which simplifies the math but means individual subsidiary giving decisions get aggregated. Second, failing to document the gift properly. C-corps need the same Form 8283 documentation as individuals for noncash gifts above $5,000, and the audit risk for inflated noncash deductions is the same. Third, failing to coordinate with the corporate tax provision. Public company tax provisions need to reflect the new floor in deferred tax accounting and effective tax rate disclosures starting in 2026.
Dollar impact at different corporate income levels. A small C-corp with $1 million of taxable income and $50,000 of charitable giving loses $10,000 to the floor, costing $2,100 of federal tax annually. A mid-cap with $25 million of taxable income and $1 million of giving loses $250,000 to the floor, costing $52,500. A large-cap with $500 million of taxable income and $20 million of giving loses $5 million to the floor, costing $1.05 million. Multiply across the full giving horizon and the dollars become material to financial reporting and shareholder return calculations. Public-company corporate philanthropy programs are reviewing budgets and structures in light of the floor.
Documentation and substantiation for C-corp charitable giving. Cash gifts of $250 or more require contemporaneous written acknowledgement from the charity, just like individual gifts. Noncash gifts above $500 require Form 8283, with the corporation as the donor. Above $5,000, qualified appraisal required. The corporation’s tax preparer must reconcile the charitable deduction on Form 1120 with the book-tax difference for financial reporting (often a permanent difference in the corporate effective tax rate calculation under ASC 740). Internal controls around large gifts of property, inventory, or stock should be tightened in 2026 to ensure compliance with the substantiation requirements and proper coordination with the tax provision.
Planning around the floor for C-corps. Three main strategies. First, push philanthropy down to shareholders in closely-held companies where the personal 0.5% floor might be lower than the corporate 1% floor on the same giving level. This works best when shareholders have lower AGI than the corporation’s taxable income, which is unusual but happens in family-owned businesses with multiple generation shareholders. Second, bunch corporate giving into high-taxable-income years rather than smoothing across years, since one large floor hit is cheaper than several smaller ones on the same total giving. Third, route giving through the corporation’s foundation (if it has one) where the foundation can hold contributions and grant them out flexibly. Corporate foundations are subject to private foundation rules including the 5% minimum payout requirement under section 4942, so the foundation cannot warehouse indefinitely.
The Reed Corporation value-add for C-corp clients. We work with corporate clients on multi-year philanthropy budget modeling, coordinating the charitable deduction with the tax provision, identifying the most efficient years to concentrate giving, and documenting the gifts to survive IRS examination. For pass-through entities (S-corps, partnerships, LLCs taxed as partnerships), the new charitable floor applies at the individual partner or shareholder level (the entity-level deduction passes through as a separately stated item on Schedule K-1, and each partner applies the 0.5% individual floor on their personal Schedule A). We coordinate the planning across the entity and the individual returns so that the total federal tax cost of philanthropy is minimized.
If your business gives meaningfully to charity, the 2026 rules deserve a planning conversation before year-end giving decisions are finalized. We model the corporate and individual impact, recommend the structure that produces the largest after-tax benefit, and document the giving to survive audit. The 1% corporate floor and the 0.5% individual floor are small percentages with large multi-year compounding effects, and the planning value scales with giving size.
Can I carry forward unused 2026 charitable deductions to future years?
It depends on what disallowed the deduction. Under OBBBA, charitable contributions are subject to two distinct limitations: the new 0.5% AGI floor (for individuals) or 1% taxable income floor (for C-corps), and the long-standing percentage-of-AGI or percentage-of-taxable-income ceilings (60% cash to public charity for individuals, 30% appreciated property, 10% taxable income for C-corps, with variations for other gift types). Amounts disallowed by the ceiling continue to carry forward five years under section 170(d). Amounts disallowed by the new floor do not carry forward at all. They are permanently lost in the year of the gift.
The mechanical rule under the unchanged section 170(d)(1) for individuals and section 170(d)(2) for C-corps. If your charitable contributions exceed the percentage ceiling for the year, the excess carries to the next five tax years and is treated as a contribution made on the first day of each succeeding year, in chronological order, subject to that year’s percentage ceiling. If the carried-forward amount is not absorbed within five years, it expires permanently. Current-year contributions take priority over carryover from prior years; the carryover is a residual claimant against the current year’s ceiling.
The new wrinkle under OBBBA. The 0.5% individual floor and the 1% corporate floor strip the first slice of contributions off the top, before the ceiling math runs. That floor-disallowed amount is not part of section 170(d). It is not a carryforward. It is a permanent disallowance. Read the statutory text carefully: section 170(p) (the new individual floor provision) and the corresponding amendment to section 170(b)(2) for corporations do not reference section 170(d). The carryforward statute applies only to amounts disallowed by the existing percentage ceilings. Floor amounts evaporate.
Practical example. A $300,000-AGI individual gives $200,000 of cash to public charity in 2026. The 0.5% floor disallows $1,500. The 60% AGI ceiling caps current-year cash deduction at $180,000. The remaining $18,500 carries forward five years under section 170(d). Of the original $200,000 gift, $180,000 is deductible in 2026, $18,500 carries forward (and will be deductible in 2027 against that year’s 60% ceiling), and $1,500 is permanently lost. If the same taxpayer continues giving $200,000 in 2027, the 2027 floor strips another $1,500 (assuming the same AGI), and the 2026 carryforward stacks behind the 2027 current-year gifts against the 2027 ceiling. Floor losses compound annually across the multi-year horizon.
Exceptions and edge cases. Qualified conservation contributions have an extended 15-year carryforward under section 170(b)(1)(E)(ii), unchanged by OBBBA. The floor still applies to conservation easement contributions, however, so the floor-disallowed portion of a conservation easement is permanently lost even though the ceiling-disallowed portion gets the extended 15-year carryforward. Qualified Charitable Distributions (QCDs) from IRAs do not interact with section 170 at all because QCDs are not itemized deductions; they reduce taxable IRA distributions directly under section 408(d)(8). The new $1,000/$2,000 nonitemizer deduction has no carryforward either, but the floor does not apply to it. If you give $1,500 in cash and take the standard deduction, you deduct $1,000 (the cap) above the line and lose the $500 excess permanently.
Common mistakes around carryforward tracking. First, failing to track current-year contributions and prior-year carryforwards separately on the return. Schedule A asks for both. Form 8283 covers noncash items. The five-year carryforward clock is per-year, so the 2026 excess has a five-year window expiring at the end of 2031, while the 2027 excess expires at the end of 2032. Tax software handles this automatically if the prior-year carryforward is correctly entered in the current-year file, but a software switch or a preparer change is a common point of failure. Carryforward amounts get dropped in those transitions every year. Second, failing to track floor-disallowed amounts at all. There is no carryforward, so there is nothing to track for return preparation, but for planning purposes it is useful to know how much was lost to the floor over the years.
Dollar example showing carryforward strategy at high giving levels. A $1 million-AGI year (e.g., business sale) with $1.5 million of charitable giving. Floor: $5,000 disallowed permanently. Ceiling: 60% of $1 million AGI = $600,000 deductible currently for cash gifts. Carryforward: $895,000 (excess of $1.495 million net-of-floor over $600,000 ceiling). The $895,000 carries forward five years. If subsequent years have $300,000 of AGI each, the 60% ceiling in each carryforward year is $180,000. The carryforward absorbs $180,000 a year against subsequent-year ceilings (assuming no current-year giving in carryforward years), exhausting in roughly five years. If subsequent-year giving continues at $50,000 a year, current-year giving fills up part of the ceiling each year and the carryforward absorbs the remainder more slowly. Plan the multi-year cadence carefully when one year has unusually large giving relative to AGI.
Audit risk for carryforward errors. The IRS examination process for individual returns includes computer matching of charitable carryforward amounts against prior-year returns. A taxpayer claiming a $50,000 carryforward in 2026 will trigger a notice if the IRS records show no excess in 2025 that would have generated such a carryforward. Maintain a charitable contribution log showing year of gift, recipient, amount, category (cash/appreciated property/private foundation/conservation easement), and how much was deducted in which year versus carried forward. This documentation is essential to substantiate carryforwards on examination. For C-corp clients with complex multi-year carryforward positions, we maintain a tax-provision-grade workpaper tracking the exact composition of the deferred tax asset attributable to charitable carryforwards.
Common scenarios where carryforward planning matters. First, business sale year with a large charitable gift to absorb the income spike. The current-year deduction is limited by the AGI ceiling; the rest carries forward to future years that may have lower AGI. Second, retirement transition where the taxpayer reduces working income and shifts to investment income. Carryforwards from high-income years get used up against lower-AGI retirement years. Third, divorce or separation where a couple’s joint giving history needs to be allocated between spouses post-divorce. The IRS regulations under section 170 do not provide bright-line rules for allocating carryforwards in divorce; we coordinate the allocation with family law counsel to protect the deduction value.
The Reed Corporation value-add on carryforward planning. We maintain a multi-year charitable contribution schedule for clients with material giving, modeling the projected current-year deduction and carryforward absorption across the next five years. The model captures projected AGI, planned giving by category, and the interaction with the new 0.5% floor (which is not modeled in most consumer tax software). For business owners considering a sale or other liquidity event, we coordinate the charitable giving strategy with the income timing to make the most of the deductible amount and minimize permanent floor losses. For clients with existing carryforwards from pre-2026 returns, we ensure the carryforwards are properly tracked through the software transition and absorbed against the right years’ ceilings. The annual return preparation captures the carryforward correctly on Schedule A and on the running carryforward worksheet for the next year’s return.
Should I bunch charitable donations to beat the 2026 charitable deduction floor?
Probably yes if you give more than about $5,000 a year and have AGI above $200,000. The math of bunching becomes more compelling under OBBBA because the new 0.5% AGI floor permanently disallows the first slice of giving each year, with no carryforward for the floor-disallowed amount. Concentrating multiple years of giving into one tax year means you incur the floor only once instead of every year, saving the difference in cumulative floor losses. The classic TCJA-era bunching benefit (consolidating giving to exceed the standard deduction threshold) stacks with the new OBBBA-era benefit (avoiding multiple floors), making bunching more attractive than it was from 2018 to 2025.
How bunching works mechanically. Instead of giving $20,000 a year for five years, you fund a donor-advised fund (DAF) with $100,000 in year 1, take an itemized deduction of $99,500 (after the 0.5% floor on a $250,000-AGI year), and have the DAF grant out the $100,000 to your chosen charities at the same $20,000 a year pace for the next five years. In years 2-5, you take the standard deduction (which is now larger under OBBBA than under pre-2018 law: roughly $15,750 single and $31,500 MFJ in 2026, projected) and claim the new $1,000/$2,000 nonitemizer deduction on top. The bunch year captures the full charitable deduction; the off years preserve the larger standard deduction and pick up the nonitemizer benefit.
Worked example showing the bunching math. Married couple, $250,000 AGI in each of years 2026-2030, $20,000 of charitable giving capacity each year. Annual giving scenario: itemize each year if other deductions push them over the standard deduction; floor strips $1,250 a year ($6,250 over five years); after floor, $93,750 deductible at 24% federal rate = $22,500 of federal tax savings, less the $6,250 of permanent floor losses at 24% = $20,000 net benefit. Bunching scenario: fund DAF with $100,000 in 2026; single floor of $1,250; deductible $98,750 at 24% in 2026 = $23,700 of federal tax savings in the bunch year. Off years 2027-2030: take standard deduction plus $2,000 nonitemizer deduction each year = $480 × 4 = $1,920 of nonitemizer benefit. Total bunch scenario: $23,700 + $1,920 = $25,620. Bunch advantage: $25,620 vs $20,000 = $5,620, or roughly $1,124 per year over five years.
Exceptions and limitations. The DAF restriction in the new $1,000/$2,000 nonitemizer deduction means contributions to a DAF do not qualify for the nonitemizer deduction. If you want the nonitemizer deduction in the off years of a bunch cycle, the gift in those years must go directly to a public charity, not to your DAF. Most bunchers simply route the DAF grants to the operating charities in the off years (which produces the same charitable result for the recipient charity) and make a small additional direct cash gift in the off years to capture the $1,000/$2,000 nonitemizer deduction. The bunch strategy and the nonitemizer deduction are not mutually exclusive; they require coordination.
Common mistakes that destroy bunching benefit. First, funding the DAF with cash when appreciated long-term securities would have been more efficient. A $100,000 cash bunch produces a $100,000 (less floor) deduction. A $100,000 stock bunch with $30,000 basis produces a $100,000 (less floor) deduction plus avoids $16,660 of capital gains tax (23.8% on $70,000 of unrealized gain). The capital gains avoidance is unaffected by the floor. Always bunch with appreciated long-term securities if available. Second, bunching in a low-AGI year when a high-AGI year is on the horizon. The percentage-of-AGI ceiling (60% cash) and the absolute size of the floor are both proportional to AGI, so a high-AGI bunch year captures more deduction within the ceiling and absorbs a single larger floor. If you know a business sale or other liquidity event is coming in two years, wait and bunch into that year. Third, bunching across the boundary of a tax law change. Section 170 changes again could shift the math; bunching one large gift in 2026 locks in current-law treatment.
Dollar examples across income brackets. At $150,000 AGI with $5,000 a year of giving, the bunch is borderline. The $750-a-year floor savings ($3,750 over five years) is modest, and the nonitemizer deduction in off years partially substitutes for itemizing in giving years. Bunch into a DAF every five years if you have other itemizable deductions that benefit from concentration too. At $500,000 AGI with $25,000 a year of giving, the bunch clearly wins. The $2,500-a-year floor savings is $10,000 over five years, plus state tax savings, plus capital gains avoidance if bunched with stock. At $2 million AGI with $100,000 a year of giving, the bunch is essential. The $10,000-a-year floor is $40,000 over five years of permanent disallowance. Bunching into one $500,000 contribution to a DAF absorbs one floor and the rest carries forward against the higher AGI cap. Save $35,000+ of permanent floor losses over the bunch cycle.
Documentation for bunching strategies. The DAF contribution generates a single contemporaneous written acknowledgement from the sponsoring organization (Fidelity Charitable, Schwab Charitable, Vanguard Charitable, or a community foundation). For securities contributions, the DAF will provide a fair market value substantiation as of the transfer date. Form 8283 is required for noncash contributions above $500. Above $5,000, qualified appraisal required (although publicly traded securities are exempt from the appraisal requirement under section 170(f)(11)(A)(ii)(I)). Keep the DAF account statements showing the grants to operating charities, even though those grants are not deductible by the donor. The IRS examination process can ask to see the DAF account history to verify the contribution year and amount.
Audit risk for bunching strategies. Low. DAFs are well-established and IRS-recognized. The sponsoring organizations file the required information returns and provide standardized acknowledgements. The bunch-year deduction looks like any other large charitable deduction on the return, subject to the normal substantiation requirements. The principal audit risk is misclassifying the DAF contribution (private foundation rules vs public charity rules) and applying the wrong percentage-of-AGI ceiling. DAFs are public charities under section 170(b)(1)(A)(vi), so they get the 60% cash ceiling and 30% appreciated property ceiling, same as direct gifts to operating public charities. Software occasionally gets this wrong; verify the deduction calculation in the bunch year.
The Reed Corporation value-add on bunching strategy. We model the multi-year bunch decision for every client with material charitable giving capacity. The model captures projected AGI, projected giving level, projected non-charitable itemized deductions (SALT capped at $40,000 under OBBBA, mortgage interest within section 163(h) limits), and the after-tax cost of charitable giving in each scenario. We recommend the bunch frequency (every three years, four years, five years), the bunch vehicle (DAF, private foundation, charitable lead trust, direct giving to operating charities), and the funding asset (cash, appreciated stock, private equity interests, real estate). For clients with closely-held business interests, we coordinate the bunch year with anticipated business income spikes and exit events to get the most from your the deduction value.
If you give meaningfully to charity and have AGI above the standard-deduction-itemize threshold, the bunch strategy is the single highest-value charitable planning move under the 2026 rules. We help clients design the multi-year giving plan, fund the DAF (or other vehicle), select the appreciated assets to contribute, and document the strategy to survive IRS examination. The bunch is not just about making the most of the current-year deduction; it is about minimizing permanent floor losses over a 5-10 year giving horizon while preserving the standard deduction benefit and the new nonitemizer deduction in the off years.