Private Foundation Tax Calculator 2026 β Section 4940, 4942 & DAF Comparison
Calculate private foundation taxes: 1.39% net investment excise (Section 4940), 5% minimum distribution requirement (Section 4942), qualifying distributions, and DAF vs private foundation comparison.
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Grants to charities + direct charitable expenses
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For contribution deduction value comparison
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Section 4940 NII Excise Tax (1.39%)
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5% Minimum Distribution Required
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Total Annual Cost (Tax + Admin)
Private Foundation Annual Tax Analysis
Private Foundation Tax Rules
Private foundations are subject to several excise taxes under Chapter 42 of the Internal Revenue Code. Understanding these rules is essential for efficient foundation management.
Key Tax Rules
Section 4940: NII Excise Tax = Net Investment Income Γ 1.39%
Section 4942: Min. Distribution = 5% Γ Average Net Non-Charitable Assets
Section 4941: Self-Dealing Tax = 10% of transaction (initial) / 200% (correction failure)
Section 4943: Excess Business Holdings = 20% + effective control limit
Section 4945: Taxable Expenditures = 20% of non-qualifying expenditure
Section 4942: Min. Distribution = 5% Γ Average Net Non-Charitable Assets
Section 4941: Self-Dealing Tax = 10% of transaction (initial) / 200% (correction failure)
Section 4943: Excess Business Holdings = 20% + effective control limit
Section 4945: Taxable Expenditures = 20% of non-qualifying expenditure
Example: $5M foundation assets, $250K investment income
Section 4940 tax: $250,000 Γ 1.39% = $3,475
Minimum distribution: $5M Γ 5% = $250,000 required
If only $200K distributed: $50,000 shortfall β $15,000 excise tax (30%)
Section 4940 tax: $250,000 Γ 1.39% = $3,475
Minimum distribution: $5M Γ 5% = $250,000 required
If only $200K distributed: $50,000 shortfall β $15,000 excise tax (30%)
Extended
Private Foundation vs Donor Advised Fund Comparison
Side-by-side cost, control, and flexibility analysis of PF vs DAF structures
Private Foundation vs Donor Advised Fund Comparison
| Feature | Private Foundation | Donor Advised Fund |
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5% Distribution Requirement Scenarios
| Foundation Assets | Min. Required (5%) | Β§4940 Tax | Total Annual Cost | As % of Assets |
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Planning tip: Distribute 5% early in the year to avoid shortfall risk. Carry-forward rules allow excess distributions in one year to offset future required amounts for up to 5 years. Administrative expenses that are charitable in nature count toward the 5% requirement.
Frequently Asked Questions
What is the Section 4940 net investment income tax for private foundations?
Section 4940 imposes a 1.39% net investment income tax (NII tax) on private foundations each year. NII includes dividends, interest, rents, royalties, and capital gains from investment assets. This rate was reduced from 2% (or 1% with high distributions) to a flat 1.39% by the SECURE Act 2.0 in 2020. It applies to all private foundations regardless of distribution levels.
What is the 5% minimum distribution requirement for private foundations?
Under Section 4942, private foundations must annually distribute at least 5% of the average net value of non-charitable-use assets. These "qualifying distributions" include grants to public charities, administrative expenses directly for charitable purposes, and certain program-related investments. Failure to distribute the minimum results in a 30% excise tax on the undistributed amount.
What are self-dealing rules for private foundations (Section 4941)?
Section 4941 prohibits financial transactions between a private foundation and its "disqualified persons" (substantial contributors, foundation managers, 20%+ owners). Prohibited self-dealing includes selling property, lending money, paying compensation beyond reasonable amounts, and using foundation assets for private benefit. Initial tax is 10% of the transaction amount; failure to correct triggers 200% additional tax.
How does a private foundation compare to a Donor Advised Fund (DAF)?
DAFs offer simplicity (no 5% distribution requirement, no 4940 tax, no IRS oversight), while private foundations offer control (you make final grant decisions), visibility (public grants under your family name), and ability to hire family staff. DAFs require 5% distribution in the first year from the sponsoring organization but donors have no timing control. Private foundations cost more to operate but offer greater autonomy.
Can family members work for and be paid by the private foundation?
Yes, with restrictions. Family members can be employed by the foundation and receive reasonable compensation for actual services rendered. However, compensation must be truly reasonable (benchmarked to similar positions), not excessive. Foundation managers who approve unreasonable compensation face personal excise taxes. The foundation may pay for reasonable legal, accounting, and investment advisory fees.