8.3 Charitable Remainder Trusts (CRUTs & CRATs)
Key Takeaways
- A Charitable Remainder Trust (CRT) is an irrevocable split-interest trust under IRC §664 that pays an annual income stream to non-charitable beneficiaries for life or a term of up to 20 years, after which the remaining trust principal passes to a qualified charity.
- As a tax-exempt entity under IRC §664(c), a CRT can sell highly appreciated, zero-basis assets (concentrated stock, real estate) at full fair market value with $0 immediate capital gains tax, enabling 100% of gross proceeds to be reinvested into a diversified portfolio.
- A Charitable Remainder Unitrust (CRUT) distributes a fixed percentage (5% to 50%) of the trust's annually revalued assets, allows additional contributions, and requires that the actuarial present value of the charitable remainder equal at least 10% of the initial contribution.
- A Charitable Remainder Annuity Trust (CRAT) distributes a fixed dollar amount (5% to 50% of initial funding value), strictly prohibits future contributions, and must satisfy both the 10% remainder test and the 5% probability of exhaustion test (Rev. Rul. 77-374).
- Distributions to income beneficiaries are taxed according to the Four-Tier Accounting hierarchy ('worst-first' ordering: Ordinary Income, Capital Gains, Tax-Exempt Income, Return of Principal); any Unrelated Business Taxable Income (UBTI) triggers a 100% excise tax under IRC §664(c)(2).
8.3 Charitable Remainder Trusts (CRUTs & CRATs)
High-net-worth clients holding heavily appreciated, low-basis assets—such as founder stock, legacy equities, or commercial real estate—face a classic wealth dilemma: selling triggers devastating capital gains taxation (20% federal LTCG + 3.8% NIIT + state taxes), while holding leaves the family exposed to extreme single-asset concentration risk.
A Charitable Remainder Trust (CRT), established under IRC §664, resolves this challenge by pairing tax-exempt asset diversification with an immediate income tax deduction, an ongoing cash flow stream, and meaningful philanthropic impact.
1. Anatomy & Mechanics of a CRT
┌────────────────────────────────────────────────────────────────────────┐
│ CHARITABLE REMAINDER TRUST (CRT) FLOW │
├────────────────────────────────────────────────────────────────────────┤
│ 1. GRANTOR TRANSFERS APPRECIATED ASSET ($5M FMV, $0 Basis) │
│ • Receives immediate Upfront Income Tax Charitable Deduction │
│ │
│ 2. CRT SELLS ASSET AT FAIR MARKET VALUE ($5,000,000) │
│ • Tax-Exempt Trust (IRC §664(c)) pays $0 Immediate Capital Gains Tax│
│ • 100% of Gross Proceeds Reinvested in Diversified Portfolio │
│ │
│ 3. ANNUAL INCOME STREAM PAID TO NON-CHARITABLE BENEFICIARY (Grantor) │
│ • Paid for Life or Term of Years (Up to 20 Years) │
│ • Taxed to Beneficiary under the "Four-Tier" Accounting Rules │
│ │
│ 4. TRUST TERMINATES │
│ • Remainder Principal Passes to Qualified Charity (≥10% Actuarial) │
└────────────────────────────────────────────────────────────────────────┘
Statutory CRT Requirements (IRC §664):
- Irrevocable Trust: Once executed, assets cannot be reclaimed by the grantor.
- Income Beneficiaries: One or more non-charitable beneficiaries (must be living at trust inception if measured by life).
- Permissible Term:
- Life or lives of non-charitable beneficiaries, OR
- A fixed term of years not to exceed 20 years.
- Statutory Payout Limits: The annual payout must be at least 5% and no more than 50% of trust value.
- 10% Minimum Remainder Value Rule: The actuarial present value of the charitable remainder interest must equal at least 10% of the initial net fair market value contributed to the trust (calculated using the IRC §7520 discount rate).
2. CRUT vs. CRAT: Structural Comparison
There are two statutory forms of Charitable Remainder Trusts:
| Feature | Charitable Remainder Unitrust (CRUT) | Charitable Remainder Annuity Trust (CRAT) |
|---|---|---|
| Annual Distribution Calculation | Fixed percentage (5% to 50%) of the trust's net asset value revalued annually. | Fixed dollar amount (5% to 50%) of the initial fair market value of contributed assets. |
| Cash Flow Profile | Variable; fluctuates annually with investment performance (built-in inflation hedge). | Constant and predictable; fixed dollar amount never changes. |
| Additional Contributions | Permitted. Donor can contribute additional assets in future years. | Strictly Prohibited. No additional contributions allowed after initial funding. |
| Actuarial Tests | Must pass the 10% Remainder Test at inception and on each subsequent contribution. | Must pass the 10% Remainder Test AND the 5% Probability of Exhaustion Test (Rev. Rul. 77-374). |
| 5% Probability of Exhaustion Rule | Not Applicable. Unitrust distributions automatically scale down if principal declines; cannot exhaust. | Mandatory. The probability that trust assets will be exhausted before charity receives remainder must be <5%. |
| Best Suited For | Younger donors, long time horizons, illiquid assets (NIMCRUT/Flip), inflation protection. | Older donors seeking guaranteed fixed income, volatile equity markets, shorter fixed terms. |
3. Specialized CRUT Variants for Illiquid Assets
Standard CRUTs require annual cash distributions regardless of trust liquidity. For HNW clients contributing illiquid assets (real estate, pre-IPO equity, timberland), specialized CRUT subtypes provide essential operational protection:
┌────────────────────────────────────────────────────────────────────────┐
│ SPECIALIZED CRUT VARIANTS │
├──────────────┬─────────────────────────────────────────────────────────┤
│ VARIANT │ OPERATIONAL MECHANICS & BEST SUITABILITY │
├──────────────┼─────────────────────────────────────────────────────────┤
│ **Standard** │ Pays fixed % of annual FMV. Requires liquid assets to │
│ **CRUT** │ meet cash flow payout mandates. │
├──────────────┼─────────────────────────────────────────────────────────┤
│ **NICRUT** │ Pays the **lesser of** the fixed percentage or net trust│
│ (Net Income) │ accounting income (IRC §643(b)). No makeup provision. │
├──────────────┼─────────────────────────────────────────────────────────┤
│ **NIMCRUT** │ Pays the **lesser of** fixed % or net income, BUT │
│ (Net Income │ includes a **makeup provision**: deficits accumulate and│
│ with Makeup) │ are paid out in future years when income exceeds fixed %.│
├──────────────┼─────────────────────────────────────────────────────────┤
│ **Flip** │ Operates as a NIMCRUT/NICRUT while holding unmarketable │
│ **CRUT** │ assets, then **flips into a Standard CRUT** on Jan 1 │
│ │ following a defined triggering event (e.g., asset sale).│
└──────────────┴─────────────────────────────────────────────────────────┘
The Flip CRUT in Practice
A Flip CRUT (Treas. Reg. §1.664-3(a)(1)(i)(c)) is the premier vehicle for illiquid, unmarketable assets:
- Pre-Sale Phase: While holding commercial real estate or private business equity producing minimal cash income, the trust pays the lesser of income or 6%. If income is $0, the payout is $0 (preventing forced fire-sales of property).
- Triggering Event: The closing of the sale of the unmarketable asset occurs.
- Post-Sale Phase: Effective January 1 of the following calendar year, the trust automatically flips to a Standard CRUT, paying a smooth, guaranteed 6% of the revalued, diversified liquid portfolio annually for life.
4. CRT Tax Exemption & The 100% UBTI Excise Tax Rule
Under IRC §664(c), a Charitable Remainder Trust is a tax-exempt entity. When the trust sells a $10,000,000 asset with a $0 basis, the trust pays $0 capital gains tax.
The 100% UBTI Excise Tax (IRC §664(c)(2))
However, if a CRT generates Unrelated Business Taxable Income (UBTI) under IRC §512, strict statutory sanctions apply:
- Prior to 2007, earning even $1 of UBTI caused a CRT to forfeit its entire tax exemption for the year.
- Under current law, the CRT retains its tax-exempt status, but the IRS imposes a 100% excise tax on every dollar of UBTI generated.
┌────────────────────────────────────────────────────────────────────────┐
│ COMMON CRT UBTI DANGER ZONES │
├───────────────────────────────────┬────────────────────────────────────┤
│ 1. DEBT-FINANCED REAL ESTATE │ 2. OPERATING PARTNERSHIPS (PTPs) │
├───────────────────────────────────┼────────────────────────────────────┤
│ • Contributing mortgaged real │ • Master Limited Partnerships (MLPs│
│ estate violates self-dealing AND│ or private equity LLCs producing │
│ creates debt-financed UBTI under│ active trade/business income │
│ IRC §514 (acquisition indebted.)│ reported on Schedule K-1 (Box 20)│
└───────────────────────────────────┴────────────────────────────────────┘
Advisory Action: Never fund a CRT with mortgaged property (pay off debt before contribution or hold >5 years) and avoid investing CRT assets in operating pass-through entities or margin debt.
5. The Four-Tier Accounting Hierarchy for CRT Distributions
Distributions to non-charitable income beneficiaries are taxed on a modified "worst-first" (highest tax rate first) ordering rule under IRC §664(b):
┌────────────────────────────────────────────────────────────────────────┐
│ THE FOUR-TIER CRT ACCOUNTING WATERFALL │
├──────────────┬─────────────────────────────────────────────────────────┤
│ **TIER 1** │ **ORDINARY INCOME** │
│ │ Current & accumulated ordinary income (Interest, │
│ │ non-qualified dividends, business income, REIT payouts).│
├──────────────┼─────────────────────────────────────────────────────────┤
│ **TIER 2** │ **CAPITAL GAINS** │
│ │ Current & accumulated capital gains. Short-Term Capital │
│ │ Gains distributed before Long-Term Capital Gains. │
├──────────────┼─────────────────────────────────────────────────────────┤
│ **TIER 3** │ **OTHER TAX-EXEMPT INCOME** │
│ │ Current & accumulated tax-exempt municipal bond interest│
├──────────────┼─────────────────────────────────────────────────────────┤
│ **TIER 4** │ **TAX-FREE RETURN OF PRINCIPAL / CORPUS** │
│ │ Tax-free distribution of initial contributed basis. │
└──────────────┴─────────────────────────────────────────────────────────┘
Cumulative Tier Tracking Mechanics
Each tier must be 100% exhausted (including all undistributed cumulative historical gains in that tier) before distributions can flow from the next lower tier.
Numerical Distribution Example:
- Client funds a 6% CRUT with $5,000,000 of stock (basis $500,000). Year 1 unitrust distribution = $300,000.
- Trust sells the stock, realizing a $4,500,000 Long-Term Capital Gain (booked to Tier 2). Trust invests proceeds in bonds earning $50,000 of interest (booked to Tier 1).
- Taxation of the $300,000 Distribution:
- Tier 1 (Ordinary Income): First $50,000 is taxed at ordinary income rates (exhausting Tier 1).
- Tier 2 (Capital Gain): Next $250,000 is taxed at favorable LTCG rates (20% + 3.8% NIIT).
- Undistributed Tier 2 gain carryforward to Year 2 = $4,500,000 - $250,000 = $4,250,000.
6. The Wealth Replacement Strategy (CRUT + ILIT)
To overcome the client's concern that contributing assets to a CRT "disinherits the children," advisors implement a Wealth Replacement Trust:
- The client contributes $5,000,000 of zero-basis stock to a CRUT.
- The client uses the upfront income tax savings (e.g., $400,000+) and a portion of the annual unitrust cash flow to fund gifts into an Irrevocable Life Insurance Trust (ILIT).
- The ILIT purchases a $5,000,000 permanent life insurance policy on the donor/spouse.
- Result:
- Donor achieves full tax-free asset diversification and lifetime cash flow.
- Charity receives the multi-million-dollar CRT remainder.
- Children receive $5,000,000 in 100% income-tax-free and estate-tax-free life insurance proceeds, perfectly replacing the donated wealth.
An advisor is comparing Charitable Remainder Unitrusts (CRUTs) and Charitable Remainder Annuity Trusts (CRATs) for a 58-year-old high-net-worth client. Which of the following statements accurately describes a key legal or operational distinction between these two split-interest trusts under IRC §664?
A client creates and funds a Standard CRUT with $4,000,000 of zero-basis founder stock. The trustee immediately sells all shares for $4,000,000 at $0 trust-level tax and reinvests the proceeds into high-yield dividend stocks and municipal bonds. In Year 1, the trust generates $40,000 in ordinary dividends (Tier 1) and $60,000 in tax-exempt municipal interest (Tier 3), alongside the initial $4,000,000 LTCG (Tier 2). If the client receives a scheduled Year 1 unitrust distribution of $240,000, how is this distribution characterized for federal income tax purposes under the Four-Tier rules?
An HNW real estate investor holds commercial land with an appraised FMV of $6,000,000 and a tax basis of $500,000. The property currently produces zero rental income and is anticipated to take 18 months to market and sell. The investor wishes to contribute the land to a Charitable Remainder Trust but cannot afford to distribute mandatory cash while the land remains unsold. Furthermore, the trustee warns about Unrelated Business Taxable Income (UBTI). What is the most appropriate trust structure and tax consequence if the CRT generates UBTI?