Philanthropic Vehicle Comparison Calculator

Not tax or legal advice. Charitable structures involve complex tax and legal considerations — work with a qualified estate attorney and CPA before implementing. This tool illustrates planning-level estimates to inform advisor conversations.

How you structure a large charitable gift can be almost as important as the gift itself. Donating appreciated stock directly — rather than selling first — avoids 23.8% in combined federal LTCG and NIIT. The choice between a donor-advised fund, private foundation, and charitable remainder trust then shapes your deduction timing, ongoing control, and administration burden.

This calculator compares three common vehicles for a single large appreciated-asset contribution under 2026 OBBBA rules. See our philanthropic vehicles decision guide for qualitative depth beyond the numbers.

The three vehicles — what you need to know

Donor Advised Fund (DAF)

A DAF is typically the most tax-efficient structure for contributions up to $10M–$20M without family-staffing goals. You irrevocably transfer appreciated assets to a sponsoring organization (Fidelity Charitable, Schwab Charitable, Vanguard Charitable, or a community foundation). The sponsor sells the asset tax-free, invests the proceeds, and you recommend grants over time — with no mandatory distribution schedule.

• AGI deduction limit: 30% for appreciated property, 60% for cash; 5-year carryforward¹
• Contribution timing: Same-day contribution locks in the deduction at current FMV; grants can be recommended over many years
• Control: You advise on grants; the sponsor retains legal control. Anonymous grants possible.
• Administration cost: 0.05%–0.60%/yr depending on sponsor and account size. Zero 990 filing or audit requirement.
• Best for: Deduction bunching in a high-income year, pre-close contribution before M&A or IPO, concentrated stock with no income need, gifts under $20M

See our DAF strategy and charitable bunching guide for pre-close timing, appreciated stock mechanics, multi-year carryforward modeling, and the OBBBA 35% deduction cap in detail.

Private Foundation

A private foundation makes sense when family grantmaking control, legacy, and next-generation involvement matter more than simplicity or cost. You control investment decisions and grant recipients — and can hire family members as staff within IRS safe harbors — but the rules are more complex and the ongoing costs higher.

• AGI deduction limit: 20% for appreciated property to PF (lower than DAF's 30%)²
• Excise tax: 1.39% on net investment income — unchanged under OBBBA³
• 5% minimum distribution: Must distribute 5% of investment assets annually for charitable purposes, or face a 30% excise penalty (IRC §4942)
• Self-dealing rules: IRC §4941 prohibits most financial transactions between the foundation and disqualified persons (founders, family members). Violations carry 10%–25% excise taxes on the transaction amount.
• Cost floor: Setup ($5K–$20K legal), annual 990-PF + audit ($15K–$50K/yr), investment management. Rarely worth the overhead below $5M–$10M initial contribution.
• Best for: Multi-generational philanthropic legacy, named foundation, programmatic grantmaking with staff, $10M+ committed charitable capital, family governance training for next generation

See our full philanthropic vehicles guide for a side-by-side DAF vs private foundation vs CRT comparison with self-dealing rule examples and governance considerations.

Charitable Remainder Trust (CRT)

A CRT differs from DAF and private foundation in one fundamental way: you receive income back. You contribute appreciated assets, receive a payout stream (unitrust or annuity) for a term or lifetime, claim a partial charitable deduction now, and the remainder passes to charity at term end.

• Deduction: Present value of the charitable remainder — typically 20%–50% of contribution FMV depending on payout rate, §7520 rate (June 2026: 5.0%⁵), and term
• Income stream: 5%–7% of trust value/yr is typical for CRUT; fixed dollar for CRAT. Payout is partially ordinary income, partially capital gain.
• 10% remainder test: IRC §664 requires the remainder PV to be at least 10% of contribution — limits high payout rates on long terms
• Capital gains: Deferred into the trust and recognized as payouts are made (not avoided permanently, unlike a DAF)
• Best for: Highly appreciated illiquid assets where you need income replacement and want a charitable legacy. Common for founders exiting a business or executives with concentrated positions.

Use our CRT calculator to model your payout, deduction, 10% remainder test, and year-by-year trust balance for CRAT and CRUT structures.

2026 OBBBA changes that affect every vehicle

35% deduction value cap for 37% bracket

Starting January 1, 2026, donors in the 37% federal tax bracket can only benefit from charitable deductions at a 35% effective rate — not 37%.⁴ A $10M DAF contribution by a 37% bracket donor saves $3.5M in federal income tax (2 cents per dollar less than before). This change modestly reduces the benefit of charitable giving at the highest income levels but does not change which vehicle is most efficient.

0.5% AGI floor for itemizers

For 2026 forward, itemizing donors must exceed a 0.5% AGI floor before any charitable deduction is claimed.⁴ For a family with $3M AGI, the first $15,000 of donations is non-deductible. For a $5M+ gift, this is immaterial — but worth noting in exact planning calculations.

Appreciated stock to DAF remains the most efficient structure

Selling appreciated stock first and donating cash costs 23.8% of the embedded gain in federal LTCG and NIIT before the money ever reaches charity. Add state tax in California (13.3%) and the combined rate can exceed 37% of the gain. The calculator above quantifies the gap for your specific asset and income level.

When each vehicle wins

Coordinating philanthropy with the rest of your estate plan

At the $30M+ level, the philanthropic vehicle decision rarely stands alone:

• Estate tax: Assets removed via DAF or PF reduce your gross estate dollar-for-dollar. At a $15M exemption (OBBBA), a $5M DAF contribution eliminates $5M from the 40% estate tax calculation — worth $2M in estate tax savings on top of income tax benefits. See estate tax calculator.
• GST: DAF and PF assets pass entirely outside the estate, bypassing GST entirely. See GST planning guide.
• GRAT/IDGT: Pre-exit GRAT transfers can combine with a DAF contribution in the same year, using the GRAT to move appreciation to heirs and the DAF to offset the triggering income event. See GRAT calculator and IDGT guide.
• Roth conversion window: A DAF contribution in the same year as a large Roth conversion can offset some of the conversion income. See Roth conversion calculator.

Related: Philanthropic Vehicles Guide · Charitable Bunching & DAF Strategy · CRT Calculator · CLAT Calculator · Concentrated Stock Strategies · Estate Tax Calculator · IPO Financial Planning