Charitable Remainder Trust Before a Business Sale: How It Works and When to Use It

A Charitable Remainder Trust lets a business owner contribute appreciated stock to a tax-exempt trust before the sale, reinvest the full pre-tax proceeds, receive an income stream for life or a term of years, and take a partial charitable deduction — all while eventually directing the remainder to a charity of their choice. For the right owner, it's one of the most powerful tools in the pre-sale planning toolkit. For the wrong one, it gives away principal for a tax benefit that doesn't justify the cost.

How a CRT works in a business sale context

The mechanics involve three steps, all of which must happen in the right order:

1. You contribute appreciated business stock to the CRT before the sale closes. The stock must be transferred to the trust before any binding agreement to sell is signed — see the binding-commitment rule below. At this point, you've irrevocably transferred the stock. You can't get it back.
2. The CRT sells the stock. Because the trust is tax-exempt under IRC §664, it pays no federal capital gains tax on the sale. The full proceeds — including the amount that would have gone to the IRS as capital gains tax — remain in the trust and get reinvested.
3. The CRT distributes income to you (or you and a spouse) for life or a set term. These distributions are taxed as they're received, with a specific character ordering (described below). At the end of the trust's term or at your death, the remaining trust assets pass to the charity or charities you named when you established the trust.

CRUT vs. CRAT: which structure to use

There are two flavors of charitable remainder trust, and the choice has significant implications:

Charitable Remainder UniTrust (CRUT)

A CRUT pays you a fixed percentage of the trust's current fair market value, recalculated annually. If the trust grows, your payment grows. If it shrinks, your payment shrinks. The payout rate must be at least 5% and no more than 50% of the annual FMV.¹

Most business owners use a CRUT because the floating payment adjusts with inflation over a long life expectancy, and because the trust's investment performance can increase distributions over time. The most common variant is a Net Income CRUT (NICRUT) or a Net Income with Makeup CRUT (NIMCRUT), which pays the lesser of the stated percentage or the trust's actual income in a given year, allowing income to accumulate in low-yield years.

Charitable Remainder Annuity Trust (CRAT)

A CRAT pays a fixed dollar amount annually, calculated as a percentage of the initial contribution value. If you contribute $2M and set a 6% payout rate, you receive $120,000/year every year for the trust's life, regardless of investment performance. No additional contributions are permitted after the trust is funded.

CRATs provide payment certainty but no inflation protection. In a low-rate environment, the fixed annuity can erode in real terms over a long retirement. For most business exit scenarios where the trust is funded once (from the sale proceeds), a CRUT is generally preferred.

The capital gains math

Here's why the CRT structure creates real economic value for a highly appreciated business:

Note: The $180,000/year from the CRUT is not entirely tax-free. It is distributed with the character of the income earned inside the trust — initially as capital gain income (because the trust realized a large long-term gain when it sold the stock), then as ordinary income, then as tax-exempt income, and finally as return of corpus. The capital gains tax is not eliminated — it is spread over the life of the trust's distributions and paid by you as you receive them. But because the full $3M stays invested rather than the after-tax $2.286M, the income base is substantially larger throughout the trust's life.

The charitable deduction — what you actually get

When you fund a CRT with appreciated property, you receive a charitable deduction equal to the present value of what the charity will eventually receive — the "charitable remainder interest." The calculation uses:

• The IRS §7520 rate for the month of contribution (4.6% for April 2026)²
• Your age (or the ages of all income beneficiaries, if more than one life)
• The trust's payout rate
• IRS actuarial tables (Publication 1457 for annuity trusts; Publication 1458 for unitrusts)

At the April 2026 §7520 rate of 4.6%, a 6% CRUT funded by a 65-year-old would typically yield a charitable deduction of approximately 20–28% of the contributed value. A 70-year-old would receive a larger deduction (30–38%) because the charity's expected wait is shorter. These figures are illustrative — your actual deduction must be calculated by a qualified tax advisor or estate attorney using current IRS tables.

The deduction for long-term capital gain property contributed to a CRT is limited to 30% of your adjusted gross income in the year of contribution. Unused deduction can be carried forward for up to five additional years.¹

The 10% charitable remainder test

For a CRT to qualify under IRC §664, the present value of the charitable remainder interest must be at least 10% of the initial contribution value. This is not just a recommendation — it's a hard requirement for the trust to be valid.¹

When §7520 rates are low (as in 2026 at 4.6%), high payout rates make it harder to satisfy this test. A 7% or 8% CRUT payout rate may not pass the 10% remainder test, depending on the donor's age. A 5–6% payout rate is typically the range where CRTs can be structured to qualify in the current rate environment. Your advisor will model this explicitly before the trust is drafted.

The binding-commitment rule — the most important planning constraint

This is where CRT pre-sale planning most often fails: the contribution to the CRT must happen before any binding agreement to sell the business is in place.

Under the assignment of income doctrine and the step transaction doctrine, if you contribute stock to a CRT after a sale is essentially certain — LOI signed, purchase price agreed, definitive agreement executed — the IRS can recharacterize the transaction as if you received the sale proceeds personally and then donated the cash. You would owe capital gains tax on the full amount, defeating the entire purpose of the CRT.

The governing authority is Rev. Rul. 78-197, which established the "binding agreement" bright-line rule: if the donee (the CRT) is not bound to complete the sale at the time of contribution, the step transaction doctrine typically does not apply.³ But the cases go further — even without a signed purchase agreement, a "prearranged sale" challenge can succeed if the trustee effectively had no real choice about whether to complete the transaction.

This timing constraint has a direct implication for planning: CRT pre-sale planning is most effective when started 1–3 years before an anticipated exit, not after you've already received an LOI. Once due diligence is underway and a buyer is identified, your window to execute a CRT without scrutiny narrows substantially.

What types of business interests work with a CRT

The CRT pre-sale strategy works most cleanly with C-corporation stock. S-corporation shareholders face complications: S-corp stock held by a CRT generates unrelated business taxable income (UBTI) for the trust (because S-corp income passes through as ordinary income to an otherwise tax-exempt entity), which subjects the trust to income tax for any year it earns UBTI — eliminating the key tax benefit.

Partnership interests (LLCs taxed as partnerships) can be contributed to a CRT, but require careful analysis. If the entity has any debt, the contribution may trigger immediate gain under the "mortgage in excess of basis" rules. Substantial inside debt is a disqualifying factor. Also, if the partnership has "hot assets" (unrealized receivables or inventory under IRC §751), those portions of the gain may not be long-term capital gain — they're ordinary income, which reduces the effective tax benefit of the CRT structure.

For the cleanest execution: C-corp stock with no debt allocation is the ideal asset for a pre-sale CRT.

CRT vs. alternatives for the charitably-inclined seller

CRT vs. donor-advised fund (DAF)

A DAF also avoids capital gains tax when appreciated stock is donated — but you receive no income from the donated assets. The full value goes to charity over time (at your direction), and you receive a deduction for the full FMV at contribution (up to 30% of AGI for appreciated property). If you have no need for income from the contributed shares, a DAF is simpler and more flexible. If you want income throughout retirement in exchange for the charitable remainder, a CRT is the right tool.

CRT vs. installment sale

An installment sale (IRC §453) defers capital gains by spreading recognition over multiple years as you receive payments. You owe tax eventually — it's deferral, not elimination. With a CRT, the portion that ultimately goes to charity is never taxed to you (the trust pays no tax on the sale, and you only pay tax on distributions, not on the charitable remainder). The CRT is more favorable for owners who are genuinely charitably inclined and willing to give up principal. Installment sales are better for owners who want all the proceeds (net of taxes) eventually returned to themselves or their heirs.

CRT vs. QSBS exclusion

If your stock qualifies under IRC §1202 (QSBS), the exclusion is generally superior to a CRT for the qualifying shares — you exclude up to $15M in gain entirely, with nothing given to charity.⁴ Don't fund a CRT with QSBS-eligible stock; use the QSBS exclusion directly and keep the full amount. CRT planning is most relevant for business owners whose stock doesn't qualify for QSBS (too large a company, professional services firm, or insufficient holding period).

Partial funding — using CRT alongside a full sale

Many business owners don't contribute the entire business to a CRT. A common structure is to contribute a portion (say, 15–25% of outstanding shares) to a CRT before the sale, then sell the remaining shares through a conventional transaction. This lets you:

• Capture the CRT benefits on a meaningful amount of appreciated stock
• Still receive a lump-sum payment for the majority of the business at closing
• Minimize the "I gave away my life's work" concern by limiting the charitable component
• Test the binding-commitment timing constraint on a smaller portion of the transaction

For a $10M sale where the owner contributes $2M of stock to a CRUT before the close: they're eliminating $476,000 in federal capital gains tax on that $2M, receiving $120,000/year in income from the trust, and keeping $8M in direct sale proceeds (minus taxes on that portion). The CRT does not require an all-or-nothing commitment.

Planning timeline

• 3–5 years before exit: Ideal window. Establish CRT, contribute stock when it has not yet been fully appreciated to peak value. Trust builds over remaining years before sale. Strongest protection against step-transaction challenge.
• 1–3 years before exit: Workable, but move decisively before any buyer conversations begin. Contribution should happen before you engage an investment banker or begin a formal sale process.
• After LOI is signed: CRT funding is no longer advisable for the stock covered by the sale agreement. Other strategies (installment note, post-sale charitable giving via DAF) may still be available.
• Post-sale: A post-sale CRT funded with cash or publicly traded securities is still possible — the capital gains issue doesn't apply if you're contributing cash — but you lose the pre-sale tax benefit. Charitable annuities funded with post-sale cash can still produce income streams and deductions.

What a specialist exit-planning advisor does

A fee-only advisor specializing in business exits provides three things that a CPA or estate attorney working alone typically doesn't:

1. Quantified comparison. Side-by-side after-tax modeling: CRT contribution vs. direct sale, with actual numbers from your business — contribution amount, payout rate, current §7520 rate, your age, your tax rate, your income needs. The question "is this worth it for me?" only gets answered with a model, not a rule of thumb.
2. Coordination with the deal. Timing the CRT contribution relative to the sale process, working with the M&A attorney on clean separation between the CRT-held shares and the conventionally sold shares, and ensuring the trustee (if independent) understands the context without being prearranged to sell.
3. Integration with the post-sale plan. The CRT income stream is one piece of a larger post-sale financial picture — other accounts, Social Security timing, Roth conversion windows, and estate planning around the $15M OBBBA exemption all interact. A specialist coordinates these rather than optimizing one piece in isolation.