Charitable Remainder Trust vs DAF: Diversifying $5M+ of Concentrated Tech Stock

If you joined a FAANG-era employer in 2014 and rode five to ten years of RSU vests and ISO exercises, by 2026 you are likely a Bay Area engineer sitting on a single position worth $3M to $15M, with cost basis a small fraction of that. You know you should diversify. You also know that selling the entire position triggers federal long-term capital gains tax (20% plus the 3.8% Net Investment Income Tax) and California tax of up to 13.3%, for an all-in rate north of 37% on the gain. On a $4M position with $800K basis, that is roughly $1.2M of tax just to free up the money.

Most people in this situation hear "Donor-Advised Fund" as the default charitable answer. A DAF works, but it has one big constraint: once you give the stock, the money is gone. You get a deduction; you do not get an income stream. For a Bay Area engineer or founder who wants to retire on this money and leave a charitable legacy, a Charitable Remainder Trust (CRT) can be the better tool. It lets you sell the appreciated stock tax-free inside the trust, take a lifetime income stream back out, claim a partial charitable deduction up front, and pass the remainder to charity at death.

This guide walks through how a CRT works, when it beats a DAF, the four eligibility tests, and a worked example for a typical Bay Area senior engineer. We see these structures often with our post-IPO tax planning clients and our tech employee tax practice at Silicon Valley Tax.

The Setup: Low-Basis Tech Stock You Cannot Easily Sell

The classic CRT candidate looks something like this:

• Tenured engineer, product manager, or early employee at a public tech company (Google, Meta, NVIDIA, Apple, Salesforce, ServiceNow, similar)
• 5 to 10 years of RSU vests and ISO exercises stacked into a single ticker
• Concentration of $3M to $15M+ in one stock, often 60% to 90% of household net worth
• Cost basis well below current FMV, often 15% to 30% of FMV
• Approaching retirement, sabbatical, or simply wants to de-risk before the next downturn
• Has charitable intent: would like real money to go to alma mater, hospital, family foundation, or a community fund

The straightforward answer is "sell and diversify." The problem is the tax bill. On a $4M position with $800K basis and a $3.2M gain, the federal LTCG (20%) plus NIIT (3.8%) plus California (13.3%) comes to about $1.18M. The donor goes from $4M of concentrated stock to roughly $2.82M of diversified cash. That is a real haircut, especially for someone five years from retirement.

A CRT changes the math by moving the sale inside a tax-exempt entity.

What a Charitable Remainder Trust Is

A Charitable Remainder Trust is a split-interest irrevocable trust authorized by IRC Section 664. The mechanics:

1. You (the donor) transfer the appreciated stock into the CRT. This is a completed gift. There is no immediate capital gain on the transfer.
2. The CRT sells the stock. Because the CRT itself is a tax-exempt entity under §664, the sale generates no income tax at the trust level. The full FMV is available for reinvestment.
3. The trustee reinvests the proceeds into a diversified portfolio (index funds, bonds, alternatives, whatever the trust document allows).
4. The CRT pays you (or you and your spouse) an annuity stream for life or for a term of up to 20 years.
5. At your death or term-end, the remainder passes to one or more qualifying §170(c) charities you named in the trust document.

You get diversification without a tax event, an income stream you can plan retirement around, and a current-year charitable deduction equal to the present value of what the charity is projected to receive at the end. The IRS official overview lives at the IRS Charitable Remainder Trusts page.

CRAT vs CRUT: Two Flavors

There are two main CRT structures. The difference is how the annual payment is calculated.

Charitable Remainder Annuity Trust (CRAT)

The CRAT pays a fixed dollar amount each year, set at the time the trust is funded. If the trust was funded with $4M at a 5% payout, the donor gets $200,000 per year, every year, regardless of how the trust assets perform. The dollar amount never changes. No additional contributions allowed after funding.

Pros: predictable income, simpler accounting. Cons: no inflation protection, and if the trust portfolio underperforms, the trust can run out of money before the term ends.

Charitable Remainder Unitrust (CRUT)

The CRUT pays a fixed percentage of the trust's current FMV, recalculated annually. If the trust is worth $4M in year one and pays 5%, the donor gets $200,000. If the trust grows to $4.5M by year two, the donor gets $225,000. If it drops to $3.5M, the donor gets $175,000. Additional contributions can be made over time.

Pros: built-in inflation hedge (payments grow with the portfolio), flexibility, more popular structure. Cons: variable income, slightly more complex annual valuation.

For most Bay Area diversification scenarios the CRUT is the right choice. The variable payout matches the donor's likely retirement spending pattern (some inflation hedge), and the trust is harder to break by drawdown. CRATs are usually only attractive for older donors with a short fixed-income need.

The Four Eligibility Tests

To qualify under §664, every CRT must satisfy four core tests. Miss any one and the trust is disqualified, which means the donor loses the upfront deduction and the trust loses its tax-exempt status. Treas. Reg. §1.664 fills in the technical detail.

1. Annual payout floor and ceiling. The annuity or unitrust amount must be at least 5% and no more than 50% of the initial FMV (CRAT) or annual FMV (CRUT). Most CRTs settle in the 5% to 7% range.
2. 10% remainder test. The actuarial present value of the charity's remainder interest must be at least 10% of the value contributed. This is calculated using the IRS §7520 rate published monthly, the donor's age (or the term length), and the payout rate. Higher payouts and younger donors push the remainder lower. A 5% CRUT for a 65-year-old typically clears the test comfortably; a 9% CRUT for a 50-year-old may not.
3. Maximum term. Either for the life of the donor (and optionally a spouse), or a term of up to 20 years. No perpetual or indefinite CRTs.
4. Qualifying charity. The remainder beneficiary must be an organization described in IRC §170(c). Public charities, private foundations, donor-advised funds, churches, schools, and most nonprofits qualify. The donor can name a single charity or split between multiple, and most trust documents allow swapping the named charity later (as long as the new one also qualifies).

The Donor's Immediate Tax Benefit

You do not get a deduction for the full FMV of what you contribute (that is the DAF benefit). You get a deduction for the present value of the remainder interest, which is what the IRS actuarially estimates the charity will eventually receive.

The deduction is calculated using:

• The IRS §7520 rate for the month of the contribution (currently around 4% to 5% depending on the rate environment)
• The donor's age (for life CRTs) or the term length (for term-of-years CRTs)
• The payout rate
• The payout frequency

As a rough rule of thumb: a 5% CRUT funded at age 60 with a 25-year term produces a charitable deduction of roughly 25% to 35% of the contributed value, depending on the §7520 rate at funding. On a $4M contribution, that is a deduction of about $1M to $1.4M. At a 37% federal marginal rate, the upfront federal tax savings are roughly $370K to $520K. California provides a parallel state deduction subject to its own AGI limits.

The deduction is subject to AGI limitations: 30% of AGI for long-term capital gain property contributed to a public charity remainder, with a five-year carryforward. High-AGI tech donors should expect to carry some of the deduction forward.

How the Annuity Stream Is Taxed

The cash you pull out of the CRT each year is not free. It is taxed under the "worst-in-first-out" (WIFO) ordering rules, sometimes called the four-tier system:

1. Tier 1: Ordinary income (interest, non-qualified dividends, short-term gain) accumulated inside the trust gets distributed first
2. Tier 2: Capital gains (long-term first, then short-term if any) distributed next
3. Tier 3: Tax-exempt income (muni interest) distributed third
4. Tier 4: Return of basis / corpus distributed last

Because the CRT sold a massive low-basis stock position right at funding, it sits on a large accumulated long-term capital gain balance. Most distributions to the donor for many years will hit at long-term capital gains rates (15% or 20% federal plus NIIT plus California). That is still better than paying ordinary income rates on the full gain in year one, and it spreads the tax bill across a 20-to-25-year horizon while the underlying portfolio grows tax-deferred inside the trust.

CRT vs DAF: When Each One Wins

The choice between a CRT and a DAF is mostly about whether the donor needs cash back. Here is the comparison side by side.

Feature	Donor-Advised Fund (DAF)	Charitable Remainder Trust (CRT)
Tax on stock sale	$0 (DAF sells, no tax)	$0 (CRT sells, no tax)
Charitable deduction	Full FMV of contribution	Present value of remainder (typically 30% to 40% of FMV)
Income stream back to donor	None. Gift is final.	5% to 7% annual payout for life or up to 20 years
Donor control over grantmaking	High. Donor advises grants on any timeline.	Low. Named charity (or charities) receives the remainder at term-end.
Setup cost and complexity	Low. Open at Fidelity/Schwab/Vanguard in an afternoon.	Moderate-to-high. Custom trust document, trustee, annual Form 5227.
Annual administration	None to the donor.	Annual valuation, payouts, trust tax return.
Estate removal	Yes. Out of estate immediately.	Yes (subject to retained payment stream).
Best when contribution is	$10K to $5M, no cash-flow need	$1M+ (practical floor), need lifetime income
Best when donor is	Already financially set, wants control of charitable timing	Approaching retirement, needs income, charitable intent

The simple rule

Use a DAF when the contribution is moderate ($10K to $5M), you have no cash-flow need, and you want flexibility over which charities receive grants and when.

Use a CRT when the position is large enough to support the administrative overhead (generally $1M+, comfortably $5M+), the donor needs or wants an income stream, and the donor is willing to lock in the eventual charitable beneficiary in exchange for tax-free diversification today.

These are not mutually exclusive. Many of our larger donors use both: a CRT for the bulk of the concentrated position (the diversification engine plus retirement income), and a smaller DAF funded separately for ongoing grantmaking flexibility year over year.

Worked Example: $4M of Low-Basis Google Stock

Let's run the numbers on a real scenario. Priya, 60, is a senior staff engineer at Google with $4M of GOOG accumulated over nine years of RSU vests. Her cost basis is $800K. She plans to retire at 65 and wants the $4M deployed in a diversified portfolio that produces retirement income for the rest of her life. She also wants a meaningful gift to her undergraduate alma mater at the end of her life.

Path A: Sell and diversify outright

• Gain: $3.2M
• Federal LTCG (20%) + NIIT (3.8%): $762K
• California (13.3%): $426K
• Total tax: $1.19M
• Net after-tax proceeds available to invest: $2.81M
• 4% safe withdrawal at retirement: $112K/year
• Eventual gift to alma mater: requires separate funding

Path B: Fund a 5% CRUT for life (term 25 years)

• Contribute $4M of GOOG to the CRUT
• CRUT sells GOOG: $0 tax at the trust
• Full $4M reinvested in a 60/40 diversified portfolio inside the trust
• Year 1 payout to Priya: $200K (5% of $4M)
• Subsequent year payouts: 5% of the trust's recalculated annual FMV (grows or shrinks with the portfolio)
• Immediate charitable deduction (5% payout, age 60, 25-year term, current §7520 rate): roughly $1.0M to $1.4M
• Federal tax savings on deduction (37% marginal): roughly $370K to $520K (carried forward as needed under AGI limits)
• Distributions taxed under WIFO: mostly long-term capital gains for many years
• At death or term-end: remainder passes to alma mater (projected $4M+ if portfolio compounds reasonably)

Comparison

Path A leaves Priya with $2.81M and roughly $112K/year of pre-tax retirement income. Path B leaves her with $4M working tax-free inside the trust, roughly $200K/year of payouts that fluctuate with the portfolio, an immediate $370K to $520K federal tax savings she can deploy elsewhere, and a substantially larger eventual gift to her alma mater. The CRT also removes the $4M from her taxable estate, which matters if she is approaching the federal estate exemption.

The trade-off: Path A leaves the residual to her heirs; Path B sends the residual to charity. If she wants to leave the residual to her kids, the CRT works against her, and a different combination (life insurance funded with the tax savings, partial DAF contribution, or QPRT structure) makes more sense. This is exactly the conversation we work through with clients on a trust and estate engagement.

What Can Go Wrong

CRTs are reliable when set up correctly and brittle when they are not. The common failure modes:

• Failing the 10% remainder test at funding. Push the payout rate too high or the term too long for a young donor and the actuarial remainder falls below 10%. Disqualified from inception. Software tools and an actuarial run before drafting catch this every time.
• Self-dealing. The donor cannot borrow from the trust, buy assets from it, lease property to it, or otherwise transact with it. §4941 excise taxes apply.
• Pre-arranged sale. If the donor has a binding contract to sell the stock before contributing it (signed term sheet, exercised tender offer), the IRS treats the donor as having received the gain personally and then contributing the after-tax proceeds. Plan and fund the CRT before any liquidity event is locked in.
• UBTI. The CRT loses its tax-exempt treatment for any year it generates unrelated business taxable income (e.g., debt-financed real estate, certain partnership K-1 flows). Stick to plain-vanilla securities and bonds.
• Administrative drift. Annual Form 5227, payout calculations, and beneficiary statements all need to be filed on time. A neglected trust can trigger penalties and, eventually, disqualification.

DIY estate planning software does not run the §7520 actuarial calc, does not file Form 5227 annually, does not coordinate WIFO accounting for the donor's personal return, and does not catch the pre-arranged-sale trap when an acquisition is pending. Each of those items can swing the result six figures.

Where We Come In

CRT planning lives at the intersection of estate attorneys (who draft the trust document), trustees (who administer it), investment advisors (who manage the portfolio), and CPAs (who handle the deduction, the annual trust return, the WIFO accounting, and the donor's coordinating personal returns). At SVT we sit on the tax side of that table and frequently coordinate the full team for clients.

The right time to start a CRT conversation is well before any expected liquidity event, and ideally during a low-income year so the upfront deduction lands against the highest possible marginal rates. Once you have a signed merger agreement or a planned tender offer, the IRS pre-arranged-sale rules can pull the rug out from under the strategy.

If you are sitting on a concentrated tech position, planning a retirement transition, and weighing whether to sell-and-diversify, fund a DAF, or set up a CRT, that is exactly the kind of multi-year planning conversation we have with tech employee and founder clients every month. See also Do I Need a Trust? for the broader estate-planning framework and our post-IPO tax strategy page for adjacent equity-driven planning.

Schedule a complimentary consultation and we will walk through your specific position, the CRT-vs-DAF math for your situation, and what a coordinated trust team looks like for a Bay Area tech earner.

Frequently Asked Questions

How much does it cost to set up a CRT?

Setup typically involves an estate attorney drafting the trust document and a CPA running the actuarial model and projecting the deduction. Most CRTs make economic sense at $1M+ of funding and become very attractive at $5M+. SVT works on flat-fee engagements; the trustee and attorney bill separately.

Can I change the charity later?

Most well-drafted CRT documents reserve the donor's right to substitute the named charity (or charities) with another §170(c) organization at any time, as long as the new beneficiary qualifies. This is the standard practice. Naming a Donor-Advised Fund as the remainder beneficiary gives you the most flexibility because you can redirect grants from the DAF after the CRT terminates.

What happens if I die early?

For a life CRT (one or two lives), the remainder passes to the named charity immediately upon the last surviving income beneficiary's death. For a term-of-years CRT, the remainder waits for the end of the term and the payouts can continue to the donor's estate or a named successor beneficiary during the remainder of the term, depending on the trust language.

Can I take the stock back out of the CRT if I change my mind?

No. The contribution to a CRT is irrevocable. That is what makes it a completed gift for income, estate, and gift tax purposes. The only thing you retain is the right to the annuity or unitrust payment stream and (typically) the right to change the named charity.

Does California honor the CRT structure?

Yes at the trust level. California conforms to the federal §664 treatment, so the CRT is exempt from California income tax at the trust level and the donor's California charitable deduction tracks the federal deduction (subject to California's own AGI limits and tax rates). However: California taxes the donor's CRT distributions at ordinary income rates (up to 13.3%) regardless of the federal WIFO character. There is no preferential California long-term capital gains rate. Model the California layer of the income stream separately when comparing CRT to outright sale.

How does a CRT interact with QSBS stock?

This is a sophisticated overlap and the interaction is not definitively settled. Contributing QSBS to a CRT generally preserves the §1202 character of the gain inside the trust under §1202(h)(1), so the trust can sell and the donor's deduction reflects the QSBS treatment. The trust itself is tax-exempt at the entity level, so the §1202 exclusion is largely redundant at that level, but the WIFO distributions to the donor may carry QSBS character through to the donor's payout taxation. The interaction between §1202 and §664 inside a CRT has not been comprehensively addressed by Treasury, so coordinate with your CPA before contributing QSBS to a CRT.