Donor-Advised Fund (DAF) Calculator 2026 β Bunching vs Annual Giving
Calculate how much more you save in taxes by bunching donations through a DAF versus giving annually. Includes appreciated stock analysis and year-by-year comparison.
$
What you normally give each year $
Before charitable deduction $
Mortgage interest, state/local taxes, etc. Stock held more than 1 year
Examples:
$0
Extra Savings from DAF Bunching
$0
Annual Giving: Tax Savings
$0
DAF Bunching: Tax Savings
β
Appreciated Stock Bonus
Year-by-Year Strategy Comparison
| Year | Annual Giving: Deduction | Annual Giving: Tax Saved | DAF Bunching: Deduction | DAF Bunching: Tax Saved |
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How to Use This DAF Bunching Calculator
Enter your typical annual donation amount, taxable income, and other itemized deductions (mortgage interest, state and local taxes, etc.). The calculator compares giving annually versus bunching multiple years into a single DAF contribution, then taking the standard deduction in subsequent years.
The Bunching Formula
Annual Giving: each year, itemize if (donation + other itemized) > standard deduction
DAF Bunching: Year 1 deduction = N Γ annual_donation. Years 2βN: standard deduction.
Extra Savings = DAF total tax savings β Annual giving total tax savings
DAF Bunching: Year 1 deduction = N Γ annual_donation. Years 2βN: standard deduction.
Extra Savings = DAF total tax savings β Annual giving total tax savings
Example
Single filer, $120K income, $8K/year donations, $12K other itemized:
Annual giving: $8K + $12K = $20K itemized. Standard deduction = $15K. Benefit = $5K Γ 22% = $1,100/yr β $3,300 over 3 years.
DAF bunching (3 years): Year 1: $24K + $12K = $36K itemized β $21K above standard β $21K Γ 22% = $4,620 saved. Years 2β3: standard deduction (no additional savings).
Extra savings from bunching: $4,620 β $3,300 = $1,320 over 3 years.
Annual giving: $8K + $12K = $20K itemized. Standard deduction = $15K. Benefit = $5K Γ 22% = $1,100/yr β $3,300 over 3 years.
DAF bunching (3 years): Year 1: $24K + $12K = $36K itemized β $21K above standard β $21K Γ 22% = $4,620 saved. Years 2β3: standard deduction (no additional savings).
Extra savings from bunching: $4,620 β $3,300 = $1,320 over 3 years.
Extended
Appreciated Stock Donation Analysis
Compare donating appreciated stock vs selling and donating cash β and quantify the capital gains tax avoided
Appreciated Stock: Donate vs Sell & Donate Cash
Donating appreciated stock directly to a DAF avoids capital gains tax on the appreciation. This comparison shows the tax advantage over selling first and donating cash proceeds.
| Item | Sell, Then Donate Cash | Donate Stock Directly |
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Enter a stock cost basis and FMV above to see the appreciated stock analysis.
Frequently Asked Questions
What is a donor-advised fund (DAF)?
A donor-advised fund is a charitable giving account held at a sponsoring organization (like Fidelity Charitable, Schwab Charitable, or Vanguard Charitable). You make an irrevocable contribution and receive an immediate tax deduction, then recommend grants to charities over time. The assets grow tax-free inside the DAF.
What is donation bunching and why does it matter?
Bunching means contributing several years of charitable donations into a single tax year via a DAF. Because the 2026 standard deduction is $16,100 (single) or $32,200 (married filing jointly), many moderate donors never itemize β meaning they get zero tax benefit from donating. By "bunching" 3-5 years of donations at once, you itemize in Year 1, take a large deduction, then claim the standard deduction in subsequent years.
How does donating appreciated stock to a DAF work?
If you donate appreciated stock held more than one year directly to a DAF, you receive a deduction equal to the full fair market value (FMV) β and you never pay capital gains tax on the built-in appreciation. Compare this to selling the stock (paying LTCG tax) and then donating cash. You lose 15-20% of the gain to taxes before giving. Donating stock directly is almost always better for the charity and for your taxes.
What are the deduction limits for charitable contributions?
Cash donations to a DAF are deductible up to 60% of your adjusted gross income (AGI). Appreciated stock donations are limited to 30% of AGI. Any excess carries forward for up to 5 years. For most donors, these limits are rarely an issue. High-net-worth donors with large appreciated positions should plan carefully around the 30% AGI limit.
Can I contribute to a DAF and grant to any charity?
You can recommend grants to virtually any IRS-qualified 501(c)(3) charity. However, the sponsoring organization has legal control and must approve grants (they virtually always approve standard requests). You cannot use DAF funds for goods or services, to fulfill personal pledges, or to benefit you directly. Private foundations and donor-benefiting organizations are excluded.