Simple Trusts vs. Complex Trusts

A trust can be a useful tool in your estate planning, allowing you to remove assets from probate and potentially minimize estate and gift taxes. It helps ensure the management of trust assets on behalf of beneficiaries and in accordance with your wishes. There are different types of trusts you can establish, with some more specialized than others. This is especially evident when comparing simple vs. complex trusts. Knowing how these broad categories of trusts compare can help you choose the right option for your estate plan.

A financial advisor can help you evaluate trust options and develop your estate plan.

What Is a Trust?

A trust is a type of legal entity created under your state’s laws to manage your assets. The person who creates a trust is a grantor, and they have the right to transfer assets into the trust.

They can also choose one or more trustees to oversee the trust. The trustee’s job is to manage assets in accordance with the grantor’s specifications on behalf of one or more trust beneficiaries.

For example, you might set up a trust to hold assets that you want distributed among your three children when you pass away. Another option is to choose your favorite charitable organization as the beneficiary of your trust.

There are many different types of trusts, each serving a different purpose: 

• Revocable trust. A grantor can change their revocable trust during their lifetime. If you have this type of trust and want to add assets to it or change the beneficiaries, you can do so while you’re still living. 
• Irrevocable trust. An irrevocable trust involves a permanent transfer of assets.
• Grantor trust. In a grantor trust, the trust creator retains certain powers over the trust, including rights to the trust’s assets and income. The trust creator may include trust assets in the estate when they pass away. 
• Non-grantor trust. With a non-grantor trust, the trust creator generally does not retain the powers that would cause the trust’s income to be taxed to them. Whether the assets are excluded from the creator’s estate depends on the trust’s terms and applicable estate tax rules.

Benefits of Trusts in Estate Planning

Trusts can serve a number of functions with significant benefits for an estate plan. 

There are several benefits of creating a trust:

• Pass specific assets to your chosen beneficiaries
• Avoid probate for certain assets
• Manage estate tax
• Limit gift tax liability
• Protect assets from creditors
• Ensure the continued care of a special needs beneficiary
• Receive the proceeds of your life insurance policy

Some of these scenarios may call for a simple trust, while others may require a more specialized trust. However, when it comes to choosing between simple trusts vs. complex trusts, do not forget to account for the corresponding tax liability.

Simple Trust Explained

A simple trust is a type of non-grantor trust. To be classified as a simple trust, it must meet certain criteria from the IRS:

• The trust must distribute all of its fiduciary accounting income currently to beneficiaries.
• No principal distributions are made.
• The trust document does not provide for distributions or other qualifying payments for charitable purposes.

With this type of trust, beneficiaries generally report their share of the trust’s distributable net income, even if the trustee fails to make a required distribution. The trust reports its income to the IRS annually and may deduct its required distributions to beneficiaries, subject to applicable limits.

Capital gains allocated to principal are generally taxable to the trust rather than its beneficiaries, although exceptions apply. A simple trust can also take a $300 exemption. ¹

Understanding Complex Trusts

A complex trust also has certain criteria it must meet. In order for a trust to be complex, it must generally meet at least one of the following conditions for the tax year:

• Refrain from distributing all of its income to trust beneficiaries
• Distribute some or all of the trust’s principal assets to beneficiaries
• Have provisions allowing income to be paid, set aside or used for charitable purposes

There are also other rules to keep in mind before choosing a complex trust.

Unlike a simple trust, a complex trust may be permitted to retain income or distribute principal, depending on its governing document and state law. There is no universal requirement that all income be distributed before principal, or that ordinary income and dividends be distributed before capital gains.

Distributions also do not necessarily have to be equal among beneficiaries. A trustee must follow the trust document and applicable fiduciary duties when determining who receives distributions and in what amounts.

Complex Trust Taxation

The IRS defines a complex trust as any trust that doesn’t meet the guidelines for a simple trust. 

Complex trusts can take deductions when calculating taxable income for the year. The income distribution deduction generally accounts for any required or qualifying distributions, subject to distributable net income limits and adjustments for tax-exempt income. A complex trust qualifies for an annual $100 exemption.

Simple Trusts vs. Complex Trusts: Which Is Better?

When it comes to simple and complex trusts, one isn’t necessarily better than the other. The type of trust that ultimately works best for you depends on its purpose.

• Income. A simple trust is fairly straightforward in the distribution and taxation of assets and income. A complex trust can offer greater flexibility in estate planning if you have a high net worth or multiple beneficiaries.
• Level of control. When comparing trust options, consider whether you want to retain control or simply hold an interest in the assets you transfer into it. Simple and complex are federal income tax classifications for non-grantor trusts. Neither classification, by itself, determines whether the person who created the trust retains control or an interest in its assets.

An estate planning attorney or financial advisor can help you decide which type of trust fits your financial situation.

Tax Reporting and Administration Differences

Simple and complex trusts follow different reporting standards, which affect the cost and time required for administration. 

Reporting Requirements

Both types of trusts generally must file Form 1041 when they have any taxable income, gross income of $600 or more, or a nonresident alien beneficiary. The reporting burden often diverges once distributions and income categories are involved.

Trustees of simple trusts typically deal with a narrower set of tax issues because the trust must distribute all income annually. Meanwhile, complex trusts involve more administrative steps because the trustee may need to track retained income, principal distributions, and any charitable transfers. 

Each action can affect how much of the trust’s income is taxable to beneficiaries versus taxable to the trust itself. This requires careful accounting and may increase the need for professional tax support.

Investment Oversight

Investment oversight can also differ between the two. 

A simple trust often follows a more predictable investment strategy because all income must pass through annually. A complex trust, however, may require more active management if principal distributions are allowed or if the trustee must plan around large charitable gifts or multiple beneficiaries with differing needs.

Recordkeeping obligations tend to expand under a complex trust because the trustee must carefully document discretionary decisions. These notes show compliance with fiduciary duties and help prevent disputes among beneficiaries.

Simple trusts, by contrast, have fewer decision points, making documentation requirements more limited and easier to manage.

Taxation Between Simple vs. Complex Trusts

Consider a trust holding investments that generate $50,000 in annual income. Comparing income tax under simple and complex trust rules highlights the practical differences between the two structures.

Simple trust rules follow a general process:

• The trust must distribute all $50,000 of income to its beneficiaries if the full amount represents fiduciary accounting income required to be distributed.
• Assuming the entire $50,000 is taxable distributable net income and there are no other adjustments, the trust can generally deduct that amount, leaving no taxable income.
• The beneficiaries, in turn, report the full $50,000 as taxable income on their own returns, taxed at each individual’s personal tax rate.

Under complex trust rules, the trustee may retain a portion of that income rather than making a full distribution.

Example

Suppose the trustee distributes $30,000 to beneficiaries and retains $20,000 within the trust. Assuming the $50,000 consists entirely of ordinary taxable income included in distributable net income, the trust can generally deduct the $30,000 distribution, while beneficiaries report that income on their individual returns.

The remaining $20,000 retained in the trust is subject to the trust’s tax rate, which is typically much more compressed than individual tax brackets. This means the trust reaches the highest marginal rate at a much lower income threshold than an individual would.

This compression is one of the most important practical differences between the two structures. Trusts hit the top federal tax bracket at a relatively low income level compared to individuals. Therefore, with a complex trust, retaining income instead of making distributions can sometimes result in a higher overall tax bill, even when the same income is generated in both scenarios.

The decision of how much to retain versus distribute under a complex trust is not purely about taxes. A trustee may have legitimate reasons to withhold income, such as protecting a beneficiary from mismanaging a large distribution or complying with the grantor’s specific instructions.

However, the tax liability is real and worth factoring into the trust’s annual administration.

How Simple and Complex Trusts Are Taxed in 2026

Simple and complex non-grantor trusts generally use the same federal income tax brackets. The main difference is how much income the trust retains and how much is taxable to beneficiaries through the income distribution rules.

For 2026, the federal ordinary income tax brackets for estates and trusts are:

These rates apply progressively, meaning only income within each bracket is taxed at that bracket’s rate. Different rates and thresholds may apply to qualified dividends and long-term capital gains.

For example, suppose a complex trust retains $20,000 in ordinary income during 2026. Assuming it qualifies for the $100 exemption, has no other deductions or credits and has no preferentially taxed income, its taxable income would be $19,900. Its federal income tax would be calculated as follows:

• 10% of the first $3,300 = $330
• 24% of the next $8,400 = $2,016
• 35% of the next $4,300 = $1,505
• 37% of the remaining $3,900 = $1,443

The total federal ordinary income tax would be $5,294, excluding any additional taxes that might apply.

A simple trust that distributes its income generally passes the associated taxable income to beneficiaries, subject to distributable net income rules. Those beneficiaries pay tax based on their individual circumstances, which could result in a different combined tax liability.

For either trust type, trustees should also consider state income taxes, potential net investment income tax liability and the tax treatment of capital gains. An estate planning attorney or tax professional can help assess how the distribution provisions affect beneficiaries and the trust’s annual tax obligations.

Bottom Line

The main difference between simple trusts and complex trusts lies in the distribution of income and assets and their tax liability. When deciding between a simple and a complex trust, be sure to carefully consider the size of your estate, the nature of its assets, and your wishes for their management. It’s critical that you understand applicable tax requirements before creating either type of trust so you can determine how the trust will best fit into your larger estate plan.

Tips for Estate Planning

• Estate planning can get complex quickly. There’s a lot to consider and it may make sense for you to speak to a financial advisor to make sure that you’ve thought through everything properly. SmartAsset’s free tool matches you with vetted financial advisors who serve your area, and you can have free introductory calls with your advisor matches to decide which one you feel is right for you. If you’re ready to find an advisor who can help you achieve your financial goals, begin now.
• While trusts can offer numerous benefits, creating one doesn’t necessarily mean you don’t also need a last will and testament. You can use a will to distribute assets that you don’t want to include in a trust. Or you could create a pour-over will to transfer assets into a trust.

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