CRUT Deduction & Wealth Transfer Calculator

What is The Mechanics of a CRUT?

A Charitable Remainder Unitrust (CRUT) is an irrevocable trust designed to mathematically obliterate capital gains taxes on highly appreciated assets (like a business, real estate, or startup equity), while simultaneously generating a lifetime income stream for you, an upfront income tax deduction, and a final gift to charity.

Mathematical Foundation

\text{Remainder Factor} \approx (1 - \text{Adj. Payout Rate})^{\text{Term}}

\text{Remainder Factor}

= The percentage of the trust the IRS calculates will make it to charity. This dictates your deduction.

\text{Deduction} = \text{Asset Value} \times \text{Remainder Factor}

\text{Deduction}

= The upfront tax write-off you can apply against ordinary income today.

Laws & Principles

The 5% Minimum Payout Rule: The IRS mandates that you must draw an income from the trust of at least 5% of its sequentially recalculated value every single year. You cannot defer it.
The 10% Minimum Remainder Rule (CRITICAL): Actuarial math must prove that the charity will receive at least 10% of the initial contribution. If you set a 15% payout rate over 20 years, the trust bleeds cash too fast, the remainder drops to 4%, and the IRS instantly invalidates the trust.
The Revaluation Engine: Unlike a CRAT (fixed annuity), a CRUT payout is a locked percentage of the trust's value redefined every year. If trust assets grow 20%, your Year 2 income check also grows 20%. It is an inflation hedge.

Step-by-Step Example Walkthrough

" A founder holds $2.5M in zero-basis stock from their startup. If sold normally, they pay $600k in capital gains tax, leaving $1.9M. Instead, they donate the stock to a 20-Year CRUT with a 6% payout. "

Transfer: The founder legally gives shares to the CRUT. Capital gains tax is permanently zeroed out. The CRUT sells the stock for $2.5M and reinvests it tax-free.
Deduction: The IRS calculates a Remainder Factor of ~30%. The founder instantly gets a $750,000 charitable deduction to wipe out W-2 taxes this year.
Income Stream: In Year 1, the founder receives 6% of the trust ($150,000 in cash). If the trust grows to $3M by Year 5, their 6% check scales up to $180,000.

Final Result: The founder bypassed $600k in taxes, secured a $750k immediate write-off, locked in $150k/year in cash flow, and ultimately leaves millions to charity.

Quick Answer: How does the CRUT Deduction Calculator work?

The CRUT Deduction Calculator evaluates the financial mechanics of an irrevocable trust. You input the value of your highly appreciated asset (like stock or real estate), its original cost basis, and your desired trust terms. The algorithm calculates the capital gains tax you permanently bypass, your immediate income tax deduction (based on the IRS Section 7520 rate), and your projected Year 1 income. Crucially, it runs the mandatory IRS 10% Remainder Test to ensure your trust structure is legally valid.

Unitrust Mathematics

Step 1 — Calculate Avoided Capital Gains

Tax Shielded = (Asset FMV − Cost Basis) × Cap Gains Rate

Step 2 — Year 1 Gross Income Stream

Payout Year 1 = Asset FMV × Trust Payout %

Step 3 — Approximation of Tax Deduction

Upfront Deduction = Asset FMV × Remainder Factor

ℹ Income Scaling

Because this is a UNI-trust, not an annuity trust (CRAT), your payout is a fixed percentage of a moving target. If the trust assets appreciate in the stock market, the dollar amount of your annual payout increases identically.

Wealth Transfer Scenarios

✓ The Tech Founder Exit

Pre-IPO Stock Sale ($5M FMV, $0 Basis)

Action: Donates $5M in stock to a CRUT prior to the IPO lockup expiring.
Tax Blocked: Instantly avoids ~$1.2M in federal and state capital gains tax.
Financial Impact: The full $5M is invested to generate yield, instead of $3.8M. The founder receives a $1M+ charitable deduction to offset their massive IPO salary, and collects $250,000/year in passive income.

→ The ultimate blueprint for shielding zero-basis founder shares.

✗ The IRS Rejection Trap

Aggressive Yield Chasing (12% Payout over 20 Yrs)

Action: A user sets up a $2M CRUT and demands an aggressive 12% annual payout for 20 years to maximize personal cash flow.
The Math: Siphoning 12% per year drains the $2M corpus too rapidly. Actuarial tables show the charity will only receive ~7% of the original amount.
Result: The trust fails the strict IRS 10% Minimum Remainder Test. The trust is declared legally void and full penalties are applied.

→ You must balance your greed against the strict 10% remainder laws.

IRS Legal Limitations (CRUT vs CRAT)

Requirement	CRUT (Unitrust)	CRAT (Annuity Trust)
Minimum Payout	5% of Annual Revalued FMV	5% of Initial Contribution only
Maximum Payout	50%	50%
Remainder to Charity	Must be ≥ 10%	Must be ≥ 10%
Probability of Exhaustion	N/A (A percentage always remains)	Must be < 5% (Strict Test)
Additional Contributions	Legally Allowed	Strictly Prohibited

Wealth Planning Strategies

Do This

✓Use a CRUT to shield cryptocurrency. If you hold $1M in Bitcoin that you bought for $10,000, selling it triggers massive taxes. Donating the BTC to a CRUT allows the trust to liquidate it for a perfectly diversified stock portfolio tax-free while continuing to pay you income.
✓Use the deduction in High-Income years. Time the funding of your CRUT to coincide with a massive taxable event (e.g. selling a business). Your upfront charitable deduction can be carried forward for up to 5 years, providing an incredible shield against ordinary income tax.

Avoid This

✗Don't fund a CRUT with mortgaged real estate. If you transfer a property into a CRUT and it has a mortgage, the IRS treats the relief of that debt as "bargain sale" income, triggering immediate taxes and potentially complex Unrelated Business Taxable Income (UBTI) issues.
✗Don't expect the money back. A CRUT is an irrevocable trust. Once the asset is transferred and the ink is dry, you cannot change your mind, break the trust, or demand the principal back. You only get the locked-in yearly income stream.

Frequently Asked Questions

What is the IRS 10% Minimum Remainder Test?

IRS regulations stipulate that to qualify as a legal charitable trust, the actuarially projected value of the "remainder" (the money left for the charity at the end of the term) must be at least 10% of the initial fair market value of the assets contributed. If your payout rate is too high or your term is too long, it fails this math test and is voided.

What is the difference between a CRUT and a CRAT?

A CRAT (Charitable Remainder Annuity Trust) pays you a fixed dollar amount every year, permanently locking in your income regardless of inflation. A CRUT (Charitable Remainder Unitrust) pays you a fixed percentage of the trust's value, which is recalculated annually. Thus, if the CRUT portfolio grows in the market, your income payout grows with it, acting as an inflation hedge.

Does a CRUT completely eliminate my tax burden?

It eliminates immediate Capital Gains taxes upon the sale of the asset inside the trust, and gives you an upfront ordinary income tax deduction. However, as the trust pays you your yearly income stream, those payouts are taxable to you under the "4-Tier System" (typically categorized as capital gains or ordinary income depending on the trust's internal accounting).

Who receives the money when the trust term ends?

At the conclusion of the stated term (e.g. 20 years, or upon your death), the trust terminates, and 100% of the remaining assets are transferred directly to the designated IRS-qualified 501(c)(3) charities of your choosing. Your heirs do not receive the trust corpus (though many pair a CRUT with a life insurance trust to replace the wealth for their children).

CRUT Deduction & Wealth Transfer Calculator

Charitable Remainder Unitrust (CRUT) Modeler

Asset Profile

Trust Architecture

Immediate Tax Deduction

Day 0 Wealth Preservation

Year 1 Unitrust Income Dynamics