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A.R.S. § 14-10907

When a Trustee Can Delegate Investment Decisions in Arizona

Verified April 4, 2026 • 57th Legislature, 1st Regular Session

Arizona law allows a trustee to hand off investment and management responsibilities to a qualified professional. The trustee is not liable for the agent's decisions as long as the trustee used reasonable care in selecting the agent, setting the terms, and reviewing performance.

Title 14, ARIZONA TRUST CODE

azleg.gov

Delegating Without Losing Protection

Not every trustee has investment expertise. This statute recognizes that reality and allows trustees to delegate investment and management functions to professionals, just as a prudent investor with similar skills would.

A fiduciary may delegate investment and management functions that a prudent investor of comparable skills might delegate under the circumstances.

A.R.S. § 14-10907(A)

The key protections come with conditions. A trustee who delegates is shielded from liability only if they exercised reasonable care in three areas: choosing the right investment agent, defining the scope and terms of the delegation, and periodically reviewing the agent's actions to confirm they are performing as agreed.

Accountability Stays in the Picture

Delegation does not mean abandonment. The investment agent must follow the agreed scope and exercise reasonable care, skill, and caution. An agent who claims to have special investment expertise is held to that higher standard. If the agent fails to comply, they are liable to the trust directly.

An investment agent who accepts the delegation of a fiduciary's function from a fiduciary who is subject to the jurisdiction of a court of this state is deemed to have submitted to the jurisdiction of that court even if the delegation agreement provides for a different jurisdiction or venue.

A.R.S. § 14-10907(D)

The statute also permits co-trustees to delegate functions among themselves when one has greater investment skill. And importantly, investing in a mutual fund is not considered delegation. Neither the fund nor its advisor becomes an investment agent under this rule.

A. A fiduciary may delegate investment and management functions that a prudent investor of comparable skills might delegate under the circumstances. B. A fiduciary is not responsible for the investment decisions or actions of the investment agent to which the investment functions are delegated if the fiduciary exercises reasonable care, skill and caution in selecting the investment agent, in establishing the scope and specific terms of the delegation and in reviewing periodically the investment agent's actions in order to monitor the investment agent's performance and compliance with the scope and specific terms of the delegation. C. The investment agent must comply with the scope and terms of the delegation and exercise the delegated function with reasonable care, skill and caution and is liable to the trust if the agent fails to do so. An investment agent who represents that the agent has special investment skills must exercise those skills. D. An investment agent who accepts the delegation of a fiduciary's function from a fiduciary who is subject to the jurisdiction of a court of this state is deemed to have submitted to the jurisdiction of that court even if the delegation agreement provides for a different jurisdiction or venue. E. A cofiduciary may delegate investment and management functions to another cofiduciary if the delegating cofiduciary reasonably believes that the other cofiduciary has greater investment skills than the delegating cofiduciary with respect to those functions. The delegating cofiduciary is not responsible for the investment decisions or actions of the other cofiduciary to which the investment function are delegated if the delegating cofiduciary exercises reasonable care, skill and caution in establishing the scope and specific terms of the delegation and in reviewing periodically the other cofiduciary's actions in order to monitor the cofiduciary's performance and compliance with the scope and specific terms of the delegation. F. Investment in a mutual fund is not a delegation of investment function and neither the mutual fund nor its advisor is an investment agent.
View on azleg.gov

This page provides general legal information about Arizona statutes and is not legal advice. For guidance on how this law applies to your situation, speak with a qualified attorney.

Related Questions

What does a trustee actually do?

A trustee manages trust assets according to the rules the trust creator set. While you are alive, you are typically both trustor and trustee. After you pass, your successor trustee distributes assets as instructed.

Should I use a bank or a professional fiduciary as my trustee?

Banks require $300K-$5M+ minimums and charge 0.5%-2% annual fees. Professional fiduciaries are licensed by the Arizona Supreme Court, charge $65-$250/hour, handle any estate size, and also serve as healthcare and financial POA.

How do I choose the right trustee for my estate?

Choose a trustee based on competence, not convenience. Avoid naming all children as co-trustees, which creates gridlock. Pick your most capable child as primary and name a backup.

Related Statutes

§ 14-10101The Arizona Trust Code: Short Title and What It Covers
§ 14-10102Which Trusts Are Covered by the Arizona Trust Code
§ 14-10103Key Definitions in the Arizona Trust Code

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