Charitable Bunching Calculator
Would giving several years of gifts at once, and itemizing that year, save more than giving evenly? Every piece below can be linked to, so it opens in a window on your reader's screen, current as of the record. No form to fill in.
2026 law · Reviewed September 6, 2026 · The full page, with methodology and sources · the terms · All tools
Embed the calculator in your page
Income, filing status, state and local taxes, mortgage interest, yearly gifts, and the years to bunch in; the deduction and tax each year under both patterns, and the saving out. In a frame it carries no cookies, no tracking, and a visible link back to the methodology. Your site has to allow frames; most do. The link that opens it in a small window is on the professionals page.
Show the code
- In plain words.
- Charitable gifts lower your tax only if you itemize deductions instead of taking the standard deduction, and many people who give steadily never reach that line. Bunching means giving two or three years of gifts in one year, often into a donor-advised fund that passes them on to charities on your usual schedule, so that year itemizes and the others take the standard deduction. This tool runs both patterns with your income, your state and local taxes, and your mortgage interest, under the rules that took effect this year.
- Why it matters.
- The charities receive the same money either way. The only thing that changes is how much of it the tax code notices, and for a steady giver the difference over a few years can be thousands of dollars.
- An example.
- A couple with $200,000 of income, $12,000 of state and local taxes, and $15,000 of gifts a year never itemizes when giving yearly. Giving two years' gifts at once, they itemize $41,000 in the gift year and take the standard deduction the next, saving about $1,050 over the pair of years.
- Where it stops.
- It uses federal brackets only and holds this year's rules constant. It ignores state tax, gifts of appreciated stock (which have their own limit and advantage), the 35 percent cap for top-bracket filers, and whether a donor-advised fund suits you.
The facts
Six quotable sentences on itemizing and bunching, 2026 figures.
The button shows exactly what your reader sees when they click the link. Paste the link where a link goes; it opens this list in a small window, always current as of the record, with the attribution and a link to the full page. Nothing to copy out, nothing to update later.
Show the code
- A charitable gift reduces tax only if you itemize, and you itemize only if your deductions beat the standard deduction: $32,200 joint, $16,100 single for 2026. Most retirees who give steadily do not clear it, so their gifts save nothing.
- From 2026, itemizers deduct only the part of their gifts over 0.5% of adjusted gross income (§ 170(b)(1)(I)), and non-itemizers may deduct up to $1,000 single or $2,000 joint of cash gifts to public charities (§ 170(p)).
- State and local taxes are deductible up to $40,400 in 2026, reduced by 30 percent of income over $505,000 down to a floor of $10,000 (§ 164(b)(7)); the cap rises 1 percent a year through 2029.
- Bunching means giving several years' gifts at once, usually into a donor-advised fund that pays them out on the old schedule, so one year clears the standard deduction by a wide margin and the others take the standard deduction anyway.
- Example: a couple with $200,000 of income, $12,000 of state and local taxes, and $15,000 of yearly gifts. Given yearly they never itemize; two years of gifts at once itemizes $41,000 in the gift year, and the pair of years saves $1,056.
- The floor is applied once per year of giving, so bunching also shrinks it: two years of gifts pay one year's floor. For a top-bracket filer the value of every itemized deduction is capped at 35 cents on the dollar (§ 68).
The 2026 itemizing figures
The standard deduction to beat, the tax cap, the charitable floor and limit, and the non-itemizer amount.
The button shows exactly what your reader sees when they click the link. Paste the link where a link goes; it opens this table in a small window, always current as of the record, with the attribution and a link to the full page. Nothing to copy out, nothing to update later.
Show the code
| Figure | Amount | Authority |
|---|---|---|
| Standard deduction | $32,200 joint · $16,100 single | § 63(c) |
| Age-65 addition | $1,650 per spouse joint · $2,050 single | § 63(f) |
| State and local tax cap | $40,400; 30% phase-down above $505,000; floor $10,000 | § 164(b)(7) |
| Charitable floor for itemizers | 0.5% of adjusted gross income | § 170(b)(1)(I) |
| Cash gifts deductible up to | 60% of adjusted gross income | § 170(b)(1)(G) |
| Non-itemizer charitable deduction | $1,000 single · $2,000 joint | § 170(p) |
| Top-bracket limitation | Deductions worth at most 35 cents on the dollar | § 68 |
Cite and link.
The clean address, a citation generated from the record so it can never carry a stale review date, and an address for every section so you can point a reader at the exact table or method.
Show the code
- Link
- https://consideratecapital.com/tools/charitable-bunching-calculator
- Citation
- Considerate Capital, "Charitable Bunching Calculator," reviewed September 6, 2026, https://consideratecapital.com/tools/charitable-bunching-calculator.
Link to a section
- The calculator https://consideratecapital.com/tools/charitable-bunching-calculator#calculator
- The facts https://consideratecapital.com/tools/charitable-bunching-calculator#facts
- The itemizing figures https://consideratecapital.com/tools/charitable-bunching-calculator#key-numbers
- How bunching works https://consideratecapital.com/tools/charitable-bunching-calculator#how-it-works
- Methodology https://consideratecapital.com/tools/charitable-bunching-calculator#methodology
- Sources https://consideratecapital.com/tools/charitable-bunching-calculator#sources
- Revision history https://consideratecapital.com/tools/charitable-bunching-calculator#revision-history
Everything here reads from one reviewed record, so a copied piece carries its year and its review date. When the law moves, the embed updates by itself; a copied table or chart keeps the year in its caption. Corrections are welcome through the contact page.