Key Takeaways

  • Simple trusts must distribute all income currently and cannot distribute corpus.
  • Complex trusts can accumulate income, distribute corpus, or make charitable contributions.
  • Simple trusts get $300 exemption; complex trusts get $100.
  • A trust can be simple one year and complex the next depending on activities.
  • Grantor trusts are disregarded—income taxed to grantor, not the trust.
  • First-tier distributions (required) vs. second-tier (discretionary).
Last updated: January 2026

Simple vs. Complex Trusts

Why This Matters for the Exam

Trust classification affects exemption amounts and how income is taxed. The exam tests the distinguishing characteristics of simple, complex, and grantor trusts.

Expect at least 2-3 questions on trust classification.

Simple Trust Requirements

A trust is simple if it meets all three requirements:

RequirementDescription
1. Distribute all incomeMust distribute all income currently (no accumulation)
2. No corpus distributionCannot distribute principal (corpus)
3. No charitable contributionsCannot make charitable donations from trust

Simple Trust Exemption: $300

Complex Trust Characteristics

A trust is complex if it meets any one of these:

CharacteristicDescription
Can accumulate incomeNot required to distribute all income
Can distribute corpusCan distribute principal
Can make charitable contributionsCan donate to charity

Complex Trust Exemption: $100

Simple vs. Complex Comparison

FeatureSimple TrustComplex Trust
Income distributionMust distribute allCan accumulate
Corpus distributionCannot distributeCan distribute
Charitable contributionsCannot makeCan make
Exemption$300$100
Taxation of incomeTo beneficiaryTo trust or beneficiary

Can Classification Change?

Yes! A trust can be:

  • Simple in Year 1 (distributes all income, no corpus or charity).
  • Complex in Year 2 (makes charitable contribution or distributes corpus).

The classification is determined each year based on that year's activities.

Tier System for Distributions

TierTypeDescription
First-TierRequired distributionsIncome required to be distributed currently
Second-TierDiscretionary distributionsOther distributions (accumulated income, corpus)

First-tier distributions are allocated income first; second-tier receives the remainder.

Grantor Trusts

A grantor trust is disregarded for income tax purposes if the grantor retains certain powers:

Grantor PowerResult
Right to revokeGrantor trust
Power to control beneficial enjoymentGrantor trust
Certain administrative powersGrantor trust
Reversionary interest >5%Grantor trust

Taxation: All income taxed directly to the grantor, not the trust. The trust does not file Form 1041 (or files informational return only).

Common Grantor Trusts

Trust TypeGrantor Trust?
Revocable living trustYes (while grantor alive)
Intentionally defective grantor trust (IDGT)Yes (by design)
Irrevocable trust (no retained powers)No

Real-World Scenario

Scenario: A trust document requires distribution of all income annually. In 2024, the trust distributes all income but also distributes $10,000 of principal for a beneficiary's medical emergency.

  • Classification: Complex trust in 2024 (distributed corpus).
  • Exemption: $100.
  • If no principal distribution: Would have been simple trust ($300 exemption).

On the Exam

Expect 2-3 questions on trust types, typically:

  1. Classification Questions: "What makes a trust simple vs. complex?"
  2. Exemption Questions: "What is the exemption for a complex trust?"
  3. Grantor Trust Questions: "When is income taxed to the grantor?"

The key is to remember: Simple = all income out, no corpus out, no charity. Complex = any one exception. Grantor trust = taxed to grantor.

Test Your Knowledge

Which is a requirement for simple trust classification?

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B
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D
Test Your Knowledge

What exemption does a complex trust receive?

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B
C
D
Test Your Knowledge

Who is taxed on income in a grantor trust?

A
B
C
D