A donation costs less than its face value, and in 2026 the size of that discount depends on which deduction route you take. This calculator applies the new 0.5% AGI floor for itemizers, the $1,000 or $2,000 deduction that now sits on top of the standard deduction, and the 2026 bracket schedule, then shows what the gift actually costs you.
The One Big Beautiful Bill Act, enacted in July 2025, rewrote the federal charitable deduction for the first time in a generation, and both changes take effect for tax years beginning in 2026. The first is a floor. A taxpayer who itemizes can deduct only the charitable contributions that exceed 0.5 percent of adjusted gross income. Donate $800 against $120,000 of AGI and only $200 is deductible, because the first $600 belongs to the floor. The second change is a deduction that did not exist before. A taxpayer who claims the standard deduction can now deduct up to $1,000 of cash gifts, or $2,000 for a married couple filing jointly, on top of the standard deduction itself.
Both rules land in a world where itemizing has become unusual. The Tax Cuts and Jobs Act nearly doubled the standard deduction in 2018, and an analysis from the accounting firm MAS LLC puts the share of households that itemize at roughly one in ten, which left about ninety percent of filers with no federal tax reason to give. That is precisely the gap the new above-the-line deduction was meant to close. Expectation for the first filing season runs high: Kiplinger reports an estimate that 144 million taxpayers will be eligible for the break on 2026 returns, and the Tax Foundation found that almost 30 percent of standard deduction filers claimed the far smaller $300 version that existed in 2020 and 2021. The floor does the opposite kind of work. It survives no matter your income level, and it takes the same dollar bite whether you give $300 or $3 million, since it is tied to AGI rather than to the size of the gift. For a household with $500,000 of AGI, the first $2,500 of giving now buys nothing.
The above-the-line route is narrow by design. Only cash qualifies, meaning currency, a check, a card charge, an electronic transfer, or a payroll deduction. Stock, cryptocurrency, furniture, and clothing are property, and property does not qualify. The money has to go directly to a public charity described in section 170(b)(1)(A), which covers churches, schools, hospitals, and operating charities. Donor advised funds, private non-operating foundations, and supporting organizations are excluded. The cap is also hard: anything above $1,000 or $2,000 is lost, with no carryforward, and the limit is not indexed for inflation.
Itemizers keep the older framework, now sitting behind the new floor. Cash gifts to public charities remain deductible up to 60 percent of AGI, appreciated property held over a year is deductible at fair market value up to 30 percent of AGI, and amounts that run past those ceilings carry forward for up to five years. What changed is that the first 0.5 percent of AGI is gone either way. Substantiation rules are unchanged for both groups. Any cash gift needs a bank record or a written acknowledgment from the charity, a single gift of $250 or more needs a contemporaneous written acknowledgment, and the IRS asks for Form 8283 once non-cash contributions pass $500.
One route sidesteps all of it. An IRA owner who is at least 70 and a half can send a qualified charitable distribution straight to a charity, up to $111,000 in 2026, and the amount is excluded from gross income rather than deducted. Because it never enters AGI, the 0.5 percent floor has nothing to bite on, the transfer can count toward a required minimum distribution, and a smaller AGI can improve the tax treatment of Social Security benefits and Medicare premiums.
The variables in plain terms. Adjusted gross income is your total income minus the adjustments on the first page of the return, and it sets both the 0.5 percent floor and the AGI ceilings. Other itemized deductions cover mortgage interest, state and local taxes, and medical expenses above 7.5 percent of AGI, everything except the charitable line. The standard deduction is $16,100 for a single filer and $32,200 for a married couple filing jointly in 2026. The calculator evaluates both routes and takes the larger deduction, which is the choice a return actually allows.
A married couple reports $150,000 of AGI, holds $24,000 of other itemized deductions from mortgage interest and state and local taxes, and plans a $6,000 cash gift to public charities. The floor is $750, so the itemized charitable deduction would be $5,250 and the itemized total would reach $29,250. That is $2,950 short of the $32,200 standard deduction, so itemizing would waste the mortgage interest entirely. The standard route comes to $32,200 plus the full $2,000 above-the-line amount, or $34,200 of deductions.
Taxable income lands at $115,800 with the gift, against $117,800 without it, and both figures sit in the 22 percent bracket. The $2,000 deduction therefore saves $440 in federal tax, which puts the true cost of the $6,000 gift at $5,560, or 92.7 cents for every dollar given. That is the least generous treatment in the history of the deduction for a donor at this income level, and it is still a real discount. Raising the gift to $20,000 flips the route: the itemized total of $43,250 then beats the standard route, the tax saving climbs to $2,431, and the after-tax cost of each dollar given falls to 87.8 cents.
| Line | Itemize | Standard route |
|---|---|---|
| Cash gift to public charities | $6,000 | $6,000 |
| 0.5% of AGI floor | $750 | does not apply |
| Charitable amount deducted | $5,250 | $2,000 |
| Other itemized deductions | $24,000 | $0 |
| Standard deduction | $0 | $32,200 |
| Total deduction | $29,250 | $34,200 |
| Taxable income at $150,000 AGI | $120,750 | $115,800 |
| Federal tax saving on the gift | $0 | $440 |
The itemized column is worth reading twice. Itemizing would have raised the deduction by $5,250 over the standard deduction alone, yet the route still loses, because the standard route keeps the $32,200 base and stacks the $2,000 above-the-line amount on top of it. A donor in this position who never checks the comparison leaves $440 on the table and may also hand the preparer a Schedule A that produces a worse result than the standard deduction. Anyone whose itemized total hovers near the standard deduction should run both routes, which is exactly what the calculator does before it prints a number. If you would rather see how the gift interacts with the rest of the household budget, the holiday budget calculator handles the December spending side, and the take-home pay calculator shows the paycheck the money has to come out of.
Bunching means concentrating several years of planned giving into one tax year so that a single large gift clears the floor or pushes the itemized total past the standard deduction, while the other years fall back on the standard deduction. Under the old rules it was close to a free win for anyone with a modest giving habit. The new above-the-line deduction complicates that advice, because the $1,000 or $2,000 cap is granted fresh every year, and a bunching strategy that skips a year throws one year of that cap away.
The default couple shows the trap. Giving $6,000 in each of two years collects $440 twice, for $880 of tax saving. Giving $12,000 in the first year and nothing in the second collects $671, which is $209 worse. In this position the yearly habit is the better plan, and a donor who bunches out of habit loses money. Move the numbers up and the answer reverses. A couple giving $20,000 a year for two years collects $4,862, while a single $40,000 gift followed by a year of nothing collects $5,426, an advantage of $564 for bunching. The crossover sits where itemizing starts to win, because from that point on the floor is paid once instead of twice. A donor advised fund is the usual tool for the strategy, since it accepts a large gift in the high year and makes the grants to charity in the years that follow, and donations to a fund do not qualify for the above-the-line deduction.
Yes. Beginning with tax year 2026, a taxpayer who claims the standard deduction may also deduct cash contributions of up to $1,000, or $2,000 for a married couple filing jointly, under IRC section 170(p). The gift has to be cash paid directly to a public charity described in section 170(b)(1)(A). Donor advised funds, private non-operating foundations, and supporting organizations do not qualify, gifts of stock or clothing do not qualify, and any amount above the cap is lost rather than carried forward.
Taxpayers who itemize can deduct only the part of their charitable contributions that exceeds 0.5 percent of adjusted gross income. At $150,000 of AGI the floor is $750, so the first $750 of giving produces no federal deduction at all. The floor applies no matter how much or how little you give, which is why it hits smaller annual gifts hardest and why concentrating several years of giving into one year can recover part of the lost deduction. The floor does not apply to the non-itemizer deduction.
It depends on which deduction route you are using. If your other deductions leave you below the standard deduction, the above-the-line cap resets every year, so giving annually can beat bunching at moderate gift levels. A married couple giving $6,000 a year over two years collects $880 of tax saving, while doubling up in one year and skipping the next collects $671, a loss of $209. Once the gift is large enough that itemizing wins, the picture flips, because the 0.5 percent floor is paid once instead of twice. Doubling a $20,000 annual gift recovers $564 over the same two years.
For an itemizer, yes in most cases. A gift of long-term appreciated stock held more than a year is deductible at fair market value and the built-in capital gain is never recognized, so the charity receives the full value while you avoid the tax on the appreciation. Two limits apply. Appreciated property is deductible up to 30 percent of AGI rather than the 60 percent ceiling for cash, and property does not qualify for the non-itemizer deduction at all, which only covers cash.
For any cash gift, keep a bank record or a written communication from the charity showing its name, the amount, and the date. For a single gift of $250 or more, the IRS requires a contemporaneous written acknowledgment that states whether you received any goods or services in return. Non-cash gifts above $500 require Form 8283, and a gift of more than $5,000 per item needs a qualified appraisal.
For an IRA owner at least 70 and a half, a qualified charitable distribution is often the better route. The 2026 limit is $111,000 per person, the transfer goes straight from the IRA to the charity, and the amount is excluded from gross income rather than deducted. Because it never enters AGI, it skips the 0.5 percent floor entirely, it can satisfy a required minimum distribution, and it may protect other income-linked items such as the taxable share of Social Security. Donor advised funds and private foundations cannot receive one.
Budget the gift before you promise it. The 50/30/20 budget calculator treats giving as a line inside the 30 percent wants bucket, and moving that line is far easier in October than in the last week of December.
All calculation logic on this page is implemented from the primary documents below. Each one is listed with the figure it supplies, so any rate or threshold in the result can be traced back to its published source.
Current-year brackets and withholding rules, with the source named.