Charitable Remainder Trust (CRUT vs CRAT): Tax-Free Asset Sales and Lifetime Income

You own a stock position now worth $1 million that you bought decades ago for $100,000. You want to diversify, generate retirement income, and eventually leave something to charity—but selling outright would hand roughly $200,000 to the IRS before you reinvest a penny. There is a 56-year-old section of the tax code, written specifically for situations like this, that lets you sell the stock without paying capital gains tax, take a six-figure income tax deduction this year, collect a lifetime income stream, and pass the remainder to charity at the end. It's called a Charitable Remainder Trust, and most people who would benefit have never heard of it.

This guide walks through how Charitable Remainder Trusts work, the difference between the two main flavors (CRUT and CRAT), the variations within each, and the math that determines whether a CRT actually beats simpler alternatives like a donor-advised fund or an outright sale.

What a Charitable Remainder Trust Actually Does

A Charitable Remainder Trust (CRT) is an irrevocable, tax-exempt "split-interest" trust authorized under Internal Revenue Code Section 664. It splits the economic interest in a pool of assets between two parties: a non-charitable income beneficiary (typically the donor or the donor's spouse) and a charitable remainderman (a 501(c)(3) public charity, donor-advised fund, or private foundation).

Here's the mechanical sequence:

1. The donor transfers appreciated assets into the irrevocable trust.
2. The trustee sells those assets. Because CRTs are tax-exempt under Section 664, no capital gains tax is owed at the trust level.
3. The trustee reinvests the proceeds in a diversified portfolio.
4. The trust pays an annual income stream to the donor (or another non-charitable beneficiary) for life or for a fixed term up to 20 years.
5. When the trust terminates, whatever remains passes to the named charity.

The donor receives three distinct tax benefits at funding: an immediate partial income tax deduction equal to the present value of the future charitable remainder, deferred capital gains taxes on the sale of the contributed asset, and removal of the contributed assets from the donor's taxable estate.

CRUT vs CRAT: The Two Core Structures

Every CRT is either a Charitable Remainder Annuity Trust (CRAT) or a Charitable Remainder Unitrust (CRUT). The difference is how the annual payment is calculated.

Charitable Remainder Annuity Trust (CRAT)

A CRAT pays a fixed dollar amount each year, set at trust creation as a percentage (between 5% and 50%) of the initial fair market value of the trust assets. If you fund a CRAT with $1 million and choose a 6% payout, the trust will pay exactly $60,000 every year regardless of how the portfolio performs.

CRATs are predictable, work like an annuity, and are simpler to administer. The downsides: no inflation protection, no additional contributions allowed after funding, and the trust must pass the IRS's "5% probability of exhaustion" test. That test, established in Revenue Ruling 77-374, requires there to be less than a 5% chance the trust will run out of assets before the charitable remainder vests. In low interest rate environments, many CRATs fail this test.

Charitable Remainder Unitrust (CRUT)

A CRUT pays a fixed percentage (also 5% to 50%) of the trust's fair market value, but the value is recalculated every year. A 5% CRUT funded with $1 million pays $50,000 in year one. If the portfolio grows to $1.1 million by year two, it pays $55,000. If it falls to $900,000, it pays $45,000.

CRUTs flex with portfolio performance, provide inflation protection in good markets, allow additional contributions over time, and are not subject to the 5% exhaustion test. They are by far the more common structure in modern planning.

CRUT Variations Worth Knowing

There are four CRUT subtypes, each useful for specific situations:

• Standard CRUT (SCRUT): Pays the stated percentage of annual fair market value regardless of income earned.
• Net Income CRUT (NICRUT): Pays the lesser of the stated percentage or actual net income. If the trust earns nothing, the beneficiary gets nothing that year.
• Net Income with Makeup CRUT (NIMCRUT): Like a NICRUT, but tracks deficits in lean years and makes up the shortfall in years when income exceeds the stated percentage. Popular for deferred-income strategies—high earners can fund a NIMCRUT today, invest in low-yield growth assets while still working, and trigger income later in retirement.
• Flip CRUT: Begins as a NICRUT or NIMCRUT and "flips" to a Standard CRUT upon a triggering event (sale of a specific illiquid asset, a specific date, marriage, retirement, etc.). This is the structure of choice for funding with illiquid assets like real estate, closely-held business interests, or pre-IPO startup equity.

The Tax Math: Why CRTs Work

The Charitable Income Tax Deduction

When you fund a CRT, you receive an immediate income tax deduction equal to the present value of the projected charitable remainder. The IRS calculates this using the Section 7520 rate, which is 120% of the federal midterm rate, rounded to the nearest 0.2%. For May 2026, the 7520 rate is 5.00%—historically favorable for CRTs because higher rates produce higher deductions.

The deduction is limited to 30% of adjusted gross income for appreciated long-term capital gain property contributed to a public charity (or 20% if the remainder goes to a private foundation), with a five-year carryforward for any unused portion. Donors can elect the most favorable 7520 rate from the current month or either of the two preceding months.

Capital Gains Deferral

This is often the biggest benefit. The trust is tax-exempt, so the trustee can sell appreciated assets without triggering capital gains tax. The donor pays tax only on the income distributions received, spread out over the trust's term.

The Four-Tier Ordering Rules

Distributions from a CRT are not just "income"—they are characterized for tax purposes under the four-tier ordering rules of IRC Section 664(b), often called "WIFO" (worst-in, first-out):

1. Tier 1: Ordinary income—interest, non-qualified dividends, short-term gains, current and accumulated.
2. Tier 2: Capital gains—short-term first, then long-term, current and accumulated.
3. Tier 3: Other income—primarily tax-exempt municipal bond interest.
4. Tier 4: Trust corpus—tax-free return of principal.

Within each tier, the highest-taxed income is distributed first. The result: beneficiaries pay ordinary income rates on early distributions before they reach the more favorable capital gains tier. Skilled trustees manage portfolio construction to balance these tiers thoughtfully.

Statutory Requirements You Cannot Bend

Several rules are non-negotiable; missing any of them disqualifies the trust:

• Annual payout rate: Minimum 5%, maximum 50%.
• 10% Minimum Remainder Interest: The present value of the charitable remainder must equal at least 10% of the contributed amount at funding.
• 5% probability test (CRATs only): Actuarial probability of trust corpus exhaustion must be under 5%.
• Term limits: One or more lives, or a fixed term not to exceed 20 years (or a combination).
• Irrevocability: The trust cannot be amended or terminated unilaterally.
• Annual Form 5227 filing: The trustee must file an information return every year.

What Assets Belong in a CRT (and What Don't)

CRTs work best when the asset has both significant appreciation and reasonable saleability or income potential.

Good fits:

• Highly appreciated publicly traded stock (the textbook use case)
• Concentrated single-stock positions that need diversification
• Real estate with large embedded gain (use a Flip CRUT)
• Closely-held C-corporation stock
• Pre-IPO startup equity
• Cryptocurrency with a low cost basis

Problematic or prohibited:

• S-corporation stock: A CRT is not an eligible S-corp shareholder; transferring S-corp stock to a CRT terminates the S election.
• Mortgaged real estate: Triggers Unrelated Business Taxable Income (UBTI) issues from debt-financed property.
• Active partnership/LLC interests: Same UBTI problem if the underlying business generates UBTI.
• Tangible personal property (art, collectibles): Deduction is limited to basis unless the charity uses the item in its exempt purpose.

Real-World Example: $1 Million Concentrated Stock Position

Assume a 65-year-old donor in California, in the 37% federal bracket, owns $1,000,000 of publicly traded stock with a $200,000 cost basis. They want to diversify and generate retirement income.

Path A: Sell outright.

• Federal long-term capital gains tax (20%): $160,000
• Net Investment Income Tax (3.8%): $30,400
• California state tax (~13.3% on capital gains): $106,400
• Net amount available to reinvest: roughly $703,000

Path B: Fund a 5% Standard CRUT, single life, May 2026 7520 rate of 5.0%.

• Capital gains tax at sale: $0 (trust is tax-exempt)
• Charitable income tax deduction: approximately $420,000 (the present value of the remainder, assuming a 5% payout, age 65, and 5.0% 7520 rate)
• Federal income tax savings from deduction (37%): roughly $155,000
• Year-one income distribution: $50,000 (revalues annually)
• Estimated lifetime income over a 20-year actuarial life expectancy with 6% portfolio growth: $1.2 million+
• Estimated charitable remainder at termination: $1.0 million+

The CRT path produces substantially more total economic value—and a meaningful charitable legacy—than an outright sale, even before factoring in estate tax savings.

Common Mistakes That Wreck Otherwise-Good CRTs

Several traps catch donors and even some advisors. Knowing them up front matters far more than knowing them after the fact.

Self-Dealing Violations

CRTs are treated as private foundations under IRC Section 4947(a)(2), which means the self-dealing rules of Section 4941 apply. Prohibited transactions include selling, leasing, or exchanging property between the trust and the donor or other "disqualified persons," and lending money to disqualified persons. The classic mistake: a donor cannot sell their personal residence to their own CRT. Penalties start at 10% of the amount involved and escalate to 200% if not corrected.

UBTI Excise Tax

Since 2007, IRC Section 664(c)(2) has imposed a 100% excise tax on Unrelated Business Taxable Income earned inside a CRT. The trust keeps its tax-exempt status, but every dollar of UBTI is essentially confiscated. Common UBTI sources: debt-financed property (any acquisition indebtedness within 12 months of disposition), active business income passed through partnerships or LLCs, and margin investing inside the trust.

Failing the 10% Minimum Remainder Test

A CRT with too-high a payout, too-young beneficiaries, or too-low an interest rate may fail the 10% minimum remainder requirement, disqualifying the trust entirely. Before funding, run the math.

Pre-Arranged Sale Doctrine

If the donor has a binding commitment to sell the asset before contributing it to the CRT, the IRS will attribute the gain to the donor under the "anticipatory assignment of income" doctrine. Contribute first, then sell.

Tracking the Numbers: Where Bookkeeping Becomes Essential

Once a CRT is funded, the donor faces years of detailed financial reporting: annual K-1s from the trust, four-tier characterization of distributions, basis tracking on the original asset for the deduction, and personal records of how the deduction interacts with charitable contribution carryforwards. Pair that with the donor's other investment activity (the diversified portfolio they invested the tax savings in, the wealth replacement insurance, taxable income from non-CRT sources) and you have a record-keeping challenge that defeats most consumer-grade tools.

This is exactly the kind of long-horizon, multi-account financial life where plain-text accounting earns its keep. Every distribution, every K-1 line, every deduction carryforward stays in human-readable files you can grep, version control, and reconstruct decades later when an IRS letter arrives. Spreadsheets get lost; ledgers maintained as code do not.

Wealth Replacement: Pairing a CRT with an ILIT

A common objection to CRTs: assets that go into the trust eventually go to charity, not to heirs. The classic solution is to pair the CRT with an Irrevocable Life Insurance Trust (ILIT) that owns a life insurance policy on the donor's life.

The mechanics:

1. The donor funds the CRT with the appreciated asset and receives the income stream plus a tax deduction.
2. The donor uses some of the CRT income (and/or tax savings) to make annual gifts to the ILIT, structured with Crummey withdrawal rights so the gifts qualify for the annual gift tax exclusion.
3. The ILIT trustee uses those gifts to pay premiums on a life insurance policy.
4. At death: the charity receives the CRT remainder, and the heirs receive the income-tax-free, estate-tax-free death benefit. Done correctly, the death benefit roughly replaces the value of the asset that went to charity.

This pairing typically requires a contribution of at least $250,000 to be cost-effective and depends on the donor being insurable.

CRT vs. The Alternatives

A CRT is not always the right answer. Compare it to other options:

Vehicle	Best For	Donor Income?	Deduction	Complexity
CRT	Appreciated asset + income need	Yes, 5–50% annually	Partial (PV of remainder)	High
Donor-Advised Fund	Simple charitable giving	No	Full FMV	Low
Charitable Lead Trust	HNW estate planning, low interest rates	No (charity gets income)	Varies	High
Direct gift	Small to moderate gifts, immediate impact	No	Full FMV	None
Private Foundation	Family legacy, ongoing grant-making	No	30% AGI cash	Very high

A CRT makes sense when the donor has a highly appreciated low-basis asset they want to diversify, needs lifetime income (often around retirement or a business sale), has charitable intent regardless, holds at least $250,000–$500,000 of qualifying assets, and is in a high tax bracket that maximizes the deduction's value.

A donor-advised fund is the better choice when the donor doesn't need income, wants flexibility to direct grants over time, or is contributing smaller amounts. A Charitable Lead Trust is better when interest rates are low and the goal is to pass assets to heirs (not charity) at the end.

2026 Specific Considerations

A few timing factors matter right now:

• May 2026 Section 7520 rate is 5.00%, historically favorable for CRTs. Higher 7520 rates produce larger up-front deductions.
• 0.5% AGI floor on charitable contributions took effect January 1, 2026. Individuals must clear that threshold before charitable deductions count, which marginally affects the value of the up-front deduction for some donors.
• Estate tax exemption changes: The current exemption is roughly $13.99 million per individual, with scheduled changes that increase the relative value of CRT estate-planning benefits for moderately wealthy donors.
• Top federal income tax rate: Currently 37%, which directly determines the value of the income tax deduction.

Keep Your Charitable Planning Records Audit-Ready

A Charitable Remainder Trust spans decades, generates dozens of tax forms, and creates dependencies between your personal return, the trust's annual filings, and your eventual estate. Keeping all of that organized in plain text—where every entry is human-readable, version-controlled, and survives software changes—is exactly what plain-text accounting was built for. Beancount.io gives you a transparent, AI-ready ledger you fully own, with no vendor lock-in. Get started for free and bring the same engineering discipline to your financial records that you'd bring to any other long-term asset.