Wealth Planning

What is a Split Interest Trust

Michael (Asset Protection Expert)
|
October 11, 2025

What is a Split Interest Trust

TABLE OF CONTENTS
TABLE OF CONTENTS

What is a Split Interest Trust

A split interest trust is a sophisticated estate planning vehicle that distributes trust benefits to two or more parties, typically differentiating between income payments and the distribution of principal. The most common types are Charitable Remainder Trusts (CRTs) and Charitable Lead Trusts (CLTs), distributing benefits between individual beneficiaries and charitable organizations.

Split interest trusts have become popular among high net worth individuals who want to maximize their philanthropic impact while having streams of income and gaining excellent tax benefits. These sophisticated financial instruments involve diligent planning but can yield enormous rewards for the right circumstance.

Understanding Split Interest Trusts

When people ask "what is a split interest trust," they're inquiring about one of the most versatile tools in modern estate planning. At its core, a split interest trust creates a legal arrangement where different beneficiaries receive different types of benefits from the same trust assets.

The underlying theory of split interest trusts is the division of the income-generating aspect of property from its final ownership. Trustees can pay out income to one set of beneficiaries while preserving the principal for others by doing so. Tax planning, charity giving, and wealth distribution options that are not present under traditional trust structures are provided by this kind of structure.

Split interest trusts come under strict IRS regulations that establish their structure, operation, and taxation. The regulations ensure the trusts achieve intended goals without abuse of the large tax benefits they provide.

The use of split interest trusts has gained a lot of popularity in the past two decades. High-net-worth individuals are increasingly viewing these instruments as potent means of accomplishing a number of financial objectives simultaneously. They can generate earnings, reduce tax burden, advance philanthropic causes, and facilitate passing on of wealth to future generations.

Types of Split Interest Trusts

Recognizing the various forms of split interest trusts is essential for anyone looking to adopt this estate planning tactic. Each type has different purposes and provides varying benefits.

Charitable Remainder Trusts (CRTs)

Charitable Remainder Trusts are the most common form of split interest trust. Under a CRT, the donor gives property to the trust and is paid income for a period of time or for life. When the term is up, the remainder of the trust assets go to named charitable entities.

CRTs come in two broad types:

  • Charitable Remainder Annuity Trusts (CRATs): Provide fixed payments yearly as a percentage of the initial trust value.

  • Charitable Remainder Unitrusts (CRUTs): Provide payments that vary yearly as a percentage of the trust's current value.

The appeal of CRTs is that they enable donors to receive a prompt tax deduction while producing ongoing income. Donors can claim a tax deduction for the value of the present value of the remainder interest of the charity, even though the actual transfer will not take place for decades or years.

Charitable Lead Trusts (CLTs)

Charitable Lead Trusts work in the reverse of CRTs. In a CLT, charitable organizations are paid by the trust for a period of time, and the rest of the property goes to non-charitable recipients, typically family members.

CLTs are especially useful for transferring assets that are appreciating to beneficiaries while reducing gift and estate taxes. The charitable payments decrease the gift's worth to family members, possibly avoiding gift tax liability altogether if planned correctly.

There are two types of CLTs:

  • Charitable Lead Annuity Trusts (CLATs): Provide fixed payments.

  • Charitable Lead Unitrusts (CLUTs): Make fluctuating payments depending on yearly trust appraisals.

Pooled Income Funds

Pooled Income Funds give a donor a choice if they want the benefits of a split interest trust without the complexity and expense of creating a personal trust. Pooled Income Funds aggregate the gifts of multiple donors together into a single mutual investment fund that a charitable institution operates.

Donors to pooled income funds receive income based on their percentage interest in the fund's earnings. The share of the fund in their will goes to the charity. This arrangement has numerous benefits of a CRT with fewer administrative powers of the donor.

How Split Interest Trusts Work

The operation of split interest trusts involves several key components that work together to effect the desired financial and philanthropic objectives. With such knowledge of the operation, the reason for the success of such trusts for particular planning objectives is understood.

Asset Transfer and Valuation

The process begins as a donor transfers property to the trust. That property can be cash, securities, real property, or other assets of value. The size of property transferred at the time of transfer dictates much about the characteristics of the operation of the trust, such as charitable deductions and amounts that have to be paid.

Professional appraisals are most often needed for assets other than cash, like real estate or closely-held business interests. The IRS requires these appraisals to be in a prescribed form so they can properly report income and benefits calculations.

Income Distribution Mechanisms

Split interest trusts utilize various methods of calculating and distributing income payments. The approach utilized depends on the type of trust and the purpose of the donor.

  • Annuity Trusts: Payments remain the same over the term of the trust based on original asset value.

  • Unitrusts: Payments vary annually based on current asset values, providing potential increased income if assets appreciate.



The payment rate must lie within ranges that the IRS specifies for it to qualify for tax benefits. For charitable remainder trusts, the rate must be a minimum of 5% but no more than 50% of the initial amount in the trust. The limitation prevents the income beneficiary and the charitable remainder from being disadvantaged excessively.

Investment Management

Trustees have wide discretion to invest trust property but are limited to balancing beneficiaries who take current income and beneficiaries who take remainder. Highly sophisticated investment methods maximizing current income while preserving long-term value are generally required.

Such split interest trusts typically invest in diversified portfolios of equities and fixed income instruments. Trustees can adopt more conservative approaches involving alternative assets like property or private equity, especially where the term of the trust is long and recovery from potential near-term volatility is possible.

Key Benefits of Split Interest Trusts

Split interest trusts have numerous advantages that are attractive to the majority of high-net-worth families and individuals. They tend to work synergistically to achieve various planning goals simultaneously.

Immediate Tax Deductions

One of the strongest benefits of split interest trusts is the initial charitable tax deduction for the donor. With charitable remainder trusts, donors are allowed to deduct the present value of the charity's remainder interest. With charitable lead trusts, the deduction is the present value of the charitable payments.

These reductions are substantial, sometimes covering 30% to 50% of the asset's value being transferred. The exact amount will depend on considerations such as payment rate, term of trust, and available IRS discount rates. Donors are often able to apply these reductions against other income, thereby reducing their overall tax burden substantially.

Income Tax Avoidance on Appreciated Assets

Split interest trusts are a wonderful vehicle for excluding capital gains tax from very valuable properties. Donors give highly valued property to such trusts without recognizing capital gains at the time of donation.

The trust can then sell the appreciated assets with no current tax effect, investing the proceeds in a diversified portfolio. This strategy is particularly valuable for donors with concentrated positions of individual stocks or other property that would realize substantial capital gains if sold outright.

Estate Tax Reduction

Split interest trusts benefit individuals who have large estates by saving them much of the estate tax burden. Donated items in these trusts are removed from the donor's taxable estate, thereby preserving a lot of estate taxes for the beneficiaries.

The cutting of the estate tax is most striking with charitable lead trusts, in which distributions to charity will reduce or even eliminate the gift tax value of the distributions to those being left behind. Coupled with investment appreciation during the term of the trust, this strategy will transfer significant wealth to recipients with very little tax effect.

Diversification Opportunities

Many high-net-worth individuals hold concentrated positions in family businesses, employer stock, or other single holdings. Split interest trusts provide a tax-efficient method of diversifying the concentrated positions with no tax currently.

Donors can gift concentrated positions to a split interest trust, diversifying their holdings, maintaining income streams, and assisting charitable causes. This diversification reduces risk and can improve long-term returns.

Potential Drawbacks and Considerations

While split interest trusts are beneficial, they also do come with severe limitations and potential drawbacks that must be properly considered by donors.

Irrevocability

Split interest trusts are typically irrevocable once they are seeded and created. Donors are not able to back out of their donations and retrieve trust assets even when their financial conditions extremely worsen. This permanence requires serious thought on current and future financial needs before creating such trusts.

Their irrevocable nature also means that donors are denied direct management control over the assets invested. While they may be in a position to make contributions to investment decisions, ultimate control is left with the trustee.

Complexity and Costs

Split interest trusts are characterized by enormous complexity involved in their creation, upkeep, and taxation reporting. Such complexity comes at a cost compared to other less complex forms of estate planning.

Setup costs can include legal fees, appraisal charges, and trustee fees. Annual administration consists of annual tax returns, investment supervision, payment calculation, and contact with beneficiaries. These costs can be considerable, particularly for smaller trusts.

Investment Risk

As with all investment vehicles, split interest trusts are exposed to market risk. Poor investment performance can lower unitrust income payments and can lessen the trust's ability to make mandatory payments. While trustees invest conservatively in order to satisfy payment requirements, such prudence can limit growth potential.

Charitable Commitment

For charitable remainder trusts, there should be a strong commitment on the part of the donor to contributing to the desired charitable organizations. The charitable remainder is not a tax planning device but rather a genuine manifestation of philanthropy that will materialize regardless of changing circumstances.

Tax Implications and Advantages

The tax treatment of split interest trusts is complex but favorable in most cases for qualified donors. Understanding these implications is critical for those who are considering such planning strategies.

Income Tax Benefits

Split interest trust charitable deductions may be utilized to reduce ordinary income to some extent. Charitable deductions are normally restricted for the majority of donors to 50% of adjusted gross income for gifts of cash and 30% for appreciated property gifts.

Unused deductions can be carried forward for up to five years, and this allows the donors to maximize the tax benefit even when the total deduction is not allowed to be claimed during the year of donation. This carryover is what makes split interest trusts possible even for donors whose deductions exceed their current income level.

Capital Gains Treatment

The capital gains tax treatment of split interest trusts provides significant advantage to donors with appreciated assets. When trusts sell property contributed to them, capital gains are not taxable at the time of immediate realization. Instead, the gains are allocated between the remainder and income interests in accordance with complex IRS rules.

In the case of charitable remainder trusts, capital gains that accrue to the charitable remainder are never taxable. Capital gains that accrue to the income interest are taxed to the income beneficiary only when the income beneficiary receives payments from the trust. This deferral can be highly valuable, especially for younger donors who receive payments over many years.

Estate and Gift Tax Considerations

Split interest trusts can save donors with large estates significant estate and gift tax dollars. Donors have an income interest in the properties, so the gifts to charitable remainder trusts are not subject to gift tax. The properties also remove them from the donor's estate, keeping out future estate tax on appreciation.

Charitable lead trusts offer even more dazzling estate and gift tax savings. The charitable payments reduce the gift tax value of payments to family members, allowing massive wealth transfers with minimal tax consequences.

Forming a Split Interest Trust

The process of forming a split interest trust requires careful planning and coordination between a multitude of professionals. The process typically entails several primary steps and considerations.

Amassing Professional Team

Creating a split interest trust takes the services of many experts. A knowledgeable estate planning lawyer would draft the trust document and coordinate compliance with all applicable laws. A professional appraiser may be required to value contributed assets. An investment firm or trustee corporation will typically hold the trust assets and conduct ongoing administration.

Tax professionals are also quite significant in the calculation of charitable deductions and the filing of taxes correctly. In complex cases involving business interests or surprise assets, other experts may be needed.

Preparation of Trust Document

The trust document is the essence of any split interest trust and is obliged to satisfy stringent IRS conditions to qualify for tax benefits. These conditions cover the payment rates, computation, administrative provisions, and designations of beneficiaries.

The tool must address issues of practicality that involve powers of investment, successor trustees, and arrangements for addressing various contingencies. Drafting is essential since the trusts are irrevocable and difficult to change once established.

Asset Transfer Process

Assets in contribution to the trust need to be done in writing and can have additional requirements depending on the nature of the asset. Securities transfer is normally simple, while real estate transfer needs deeds and may also have title insurance and recording fees.

For closely-held business interests, the transfer mechanism may be more complex and include valuation discounts on minority interests or unavailability in the market. These discounts may enhance the tax benefits but need to be well-documented and valued by experts.

Real-World Examples

Going through real-world examples gives a better insight into how split interest trusts work in real-life scenarios and how they can help.

Example 1: Charitable Remainder Trust

Consider an example of a 65-year-old business owner who owns $2 million of highly appreciated stock bought by her years ago for $200,000. If she sells the stock outright, she would owe capital gains of approximately $280,000 (20% federal and state taxes).

Instead, she gives the stock to a charitable remainder unitrust with a 6% annual payout rate. The trust disposes of the stock instantly with no tax consequences and invests in an assortment of assets. She receives an instant charitable deduction of some $600,000 and will receive payments for life of $120,000 every year.

When she passes away, the trust property will go to her favorite charity. She has saved her heirs $280,000 in taxes, achieved a gigantic charitable deduction, and enjoyed her income stream subsidizing a cause that is her favorite.

Example 2: Charitable Lead Trust

A couple with a high net worth would like to leave their $5 million business to their beneficiaries in a manner that keeps gift taxes low. They establish a 15-year charitable lead annuity trust that distributes $400,000 per annum to charity.

The worth of these charity payments today reduces the gift tax expense of the transfer to their beneficiaries to approximately $1 million, which they could afford to pay from their lifetime gift tax allowances. If the business continues to increase at an 8% compound rate annually, their beneficiaries are left with assets worth more than $15 million at the end of the trust, but the couple has made a significant charitable contribution and saved transfer taxes.

Who Should Consider Split Interest Trusts

Split interest trusts are not for everyone but can be of tremendous benefit to individuals in specific circumstances.



High-Net-Worth Individuals

Split interest trusts work best for people with large assets who have a large income, gift, or estate tax burden. The amount of assets needed for consideration is usually $500,000 to $1 million, although trusts this size might not offer enough benefits to meet the costs.

Philanthropically Inclined Donors

These trusts are most appropriate for individuals who are genuinely committed to philanthropic giving. Charitable giving is not a tax strategy but a genuine commitment that will be carried out regardless of changing situations.

Owners of Appreciated Assets

Individuals with highly appreciated assets they would like to diversify will particularly benefit from split interest trusts. The flexibility to delay immediate capital gains tax while diversifying and encouraging charity is particularly attractive here.

Business Owners Succession Planning

Family business owners can utilize charitable lead trusts as powerful succession planning tools. Charitable lead trusts can transfer business interests to the next generation without incurring high transfer taxes and also making charitable contributions.

Conclusion

Split interest trusts are sophisticated estate planning devices that can achieve multiple objectives at the same time. Properly structured and managed, these trusts can offer immediate tax savings, periodic income, estate tax reduction, and substantial charitable benefit.

But the intricacy and the finality of the trusts demand serious thought and professional advice. Prospective donors must carefully assess their financial situation, philanthropic motives, and long-term goals before acting.

For the right people, split interest trusts can be powerful instruments that enhance economic security and establish lasting charitable legacies. With ongoing changes in tax law and financial markets, these trusts are sure to remain integral parts of advanced estate and tax planning strategies.

The key to success with split interest trusts is in handling experienced professionals who are knowledgeable about the technical regulations as much as the practical realities of such advanced schemes. With planning and execution applied carefully, these trusts can provide benefits reaching far beyond simple tax advantages to make a tangible difference to families and charitable causes alike.

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