Charitable Remainder Life Funding Calculator
Run both the CRT and Insurance tabs first, then click below to see a full combined summary.
Giving It Away and Keeping It Too — How a CRT Actually Works
Most people assume that donating a large appreciated asset means their heirs lose that wealth forever. That assumption has quietly cost a lot of families a lot of money. A Charitable Remainder Trust, paired with a life insurance wealth replacement policy, lets you do something that sounds impossible: donate an asset, avoid the capital gains tax on it, receive income from it for years, and still pass an equivalent amount to your children.
It’s not a loophole. It’s a strategy that’s been written into the IRS tax code for decades. And yet most people only hear about it from an estate attorney after they’ve already sold an asset and paid the tax — which is exactly the wrong order.
This free calculator breaks the strategy into its two moving parts: what the CRT generates, and what life insurance it takes to make your heirs whole.
How the Calculator Works and What Each Input Means
The tool uses a three-tab structure. The first tab models the CRT itself. The second tab calculates the wealth replacement life insurance. The third gives you a combined summary showing the full picture in one place. Run them in order for the most accurate result.
Step-by-step instructions
- On the CRT tab, enter the fair market value of the asset you’re considering transferring — stock, real estate, or business interest are the most common.
- Enter the original cost basis. The gap between this and fair market value is the embedded capital gain the CRT helps you avoid.
- Set your payout rate. The IRS requires a minimum of 5%. Higher rates mean more annual income but a smaller remainder for charity.
- Enter the trust term in years — either a fixed number of years (up to 20) or you can model it as a longer period to represent a lifetime payout scenario.
- Add your assumed investment return inside the trust and your applicable capital gains tax rate, then click Calculate CRT.
- Move to the Insurance tab. Enter the same asset value for reference, then set your wealth replacement target — typically the full asset value so heirs receive an equivalent amount.
- Enter your estimated CRT annual income from the first tab, choose a policy type and health classification, and click Calculate Insurance Need.
- Go to the Combined Summary tab and click the button to see all numbers consolidated.
The formula the calculator uses
The CRT side calculates annual income as asset value multiplied by payout rate. Lifetime income is annual income multiplied by trust term. Capital gains tax bypassed equals the gain (asset minus basis) multiplied by your capital gains rate. Trust ending value is calculated year by year — starting balance grows at the investment return rate, then the annual payout is deducted each year. Whatever remains at the end passes to the designated charity.
Breaking down the insurance side
The wealth replacement premium is estimated using a base rate factor tied to policy type, then adjusted for age and health classification. Older ages and lower health ratings increase the premium significantly — this is why age at the time of implementation matters so much in CRT planning. The net cash flow result shows whether the CRT income covers the premium with room to spare.
A worked example with real numbers
Imagine a 62-year-old in standard health with $600,000 of appreciated stock — original basis of $60,000. They contribute it to a CRUT at a 5.5% payout rate over 20 years. Annual income: $33,000. Capital gains tax bypassed on the $540,000 gain at 20%: approximately $108,000. With the $33,000 annual income, they fund a whole life policy targeting a $600,000 death benefit for their heirs. Estimated annual premium at age 62 in standard health: roughly $28,000 to $34,000, depending on the insurer. Net cash flow after premium: a few thousand per year, sometimes more. Charity receives the trust remainder. Heirs receive $600,000 at death. Everyone wins.
Situations where this strategy makes the most sense
Not every asset and not every family profile fits this strategy. But when the conditions are right, it’s one of the most powerful tools in estate planning.
Highly appreciated assets with low basis
The bigger the gap between what you paid and what it’s worth today, the more compelling this strategy becomes. Selling a stock with a 90% embedded gain and paying federal and state capital gains tax can cost 25–30 cents on every dollar. Routing that asset through a CRT instead means the full value stays invested and working. A 1035 exchange tax savings calculator can show a related comparison for appreciated life insurance policies.
What changes when the asset is real estate versus stock
Real estate carries an additional layer: depreciation recapture tax on top of capital gains. This makes the CRT even more attractive for rental property owners, since the full unencumbered value enters the trust without triggering either tax at the point of contribution. The depreciation recapture is instead spread across the income distributions over the trust term. Always verify this treatment with a CPA familiar with CRT taxation.
Three inputs that people consistently get wrong
After looking at how people run these numbers, certain mistakes show up again and again. They’re easy to avoid once you know what to watch for.
Setting the payout rate too high
Many people instinctively push the payout rate up to maximize annual income. The problem is that a high payout rate depletes the trust faster, leaving little or nothing for charity at the end — which can jeopardize the trust’s tax-exempt status if the IRS actuarial test isn’t met. The 5% IRS minimum exists for a reason. Work with what makes sense for your income need, not the highest number the calculator will accept.
Using an optimistic investment return assumption
The trust ending value is highly sensitive to assumed investment return. Plugging in 10% makes everything look great. But CRT assets are typically invested conservatively because the trust needs to sustain steady distributions. A more realistic return assumption — often 5 to 7% — gives you a more honest picture of what the charity will actually receive.
Underestimating the insurance premium based on current health
This is the one that derails the most strategies. People run the numbers assuming Preferred Plus rates, then find out at medical underwriting that they qualify for Standard or worse. The premium jumps significantly, and suddenly the CRT income doesn’t cover it comfortably. Always model using at least Standard rates unless you have a recent medical exam confirming better classification. Most people skip this step — don’t be one of them.
Questions People Ask Before Running These Numbers
What types of assets can go into a CRT?
Publicly traded securities, real estate, closely held business stock, and mutual funds are all commonly used. Cash can be contributed, though the capital gains benefit is less relevant. Mortgaged real estate gets complicated because of the debt-financed property rules — consult an estate attorney before contributing any encumbered property.
Does the life insurance policy need to be held in a trust?
Many estate planners recommend funding the wealth replacement policy through an Irrevocable Life Insurance Trust so the death benefit stays outside the taxable estate. If the insured owns the policy personally, the death benefit could increase the taxable estate, partially undoing the estate planning benefit. Structure matters as much as the dollar amounts.
Can a surviving spouse be the income beneficiary?
Yes. A CRT can be structured to pay income to both spouses for their joint lifetimes, with the trust passing to charity after both have passed. This is one of the most common configurations for married couples. The calculation gets more complex because it uses IRS joint life expectancy tables to determine the charitable deduction and the actuarial test — a qualified attorney handles this part.
What happens if I don’t qualify medically for the wealth replacement policy?
This is a real risk that should be evaluated before the CRT is funded. Once the asset goes into the trust, it’s irrevocable — you can’t change your mind. Medical underwriting should ideally be completed before or simultaneously with CRT implementation, not after. If the insured doesn’t qualify at all, the wealth replacement leg of the strategy simply doesn’t exist, and heirs won’t receive an equivalent amount.
Is the CRT annual income taxable?
Yes, and the tax character follows a specific ordering tier under IRS rules: ordinary income first, then capital gains, then tax-free return of basis. In practice, most distributions carry ordinary income or capital gains character. This is why comparing net after-tax income — not gross — is important when evaluating whether the strategy outperforms simply selling and investing the after-tax proceeds.
What’s the difference between a CRAT and a CRUT?
A Charitable Remainder Annuity Trust pays a fixed dollar amount each year regardless of trust performance. A Charitable Remainder Unitrust pays a fixed percentage of the trust’s value as recalculated annually — so income fluctuates with investment performance. The CRUT is more flexible and allows additional contributions. This calculator models the CRUT framework, which is the more commonly used structure.
Can I change the charity after the trust is set up?
That depends on how the trust document is drafted. Some CRTs name a specific charity irrevocably. Others name a donor-advised fund as the charitable remainder beneficiary, which provides significant flexibility — the donor can recommend grants from the fund to different charities over time. This is a common planning choice for donors who want flexibility on the charitable side.
Where do I go from here after seeing my results?
These numbers are your starting framework — they show whether the strategy is worth pursuing in detail. The next step is a conversation with an estate planning attorney and a CPA who both have CRT experience. Before that meeting, it also helps to compare policy structures. The whole vs. universal life calculator can help you weigh the two most common wealth replacement policy types against each other, and the limited pay life calculator is worth reviewing if you’d prefer to fund the policy in fewer years using higher annual CRT distributions.
The strategy works when the numbers work. Run them honestly — conservative return assumptions, realistic health classification, full cost basis — and you’ll know quickly whether this belongs in your planning conversation.