How to Revoke Power of Attorney in Michigan

A power of attorney is not permanent. Your parent can revoke it at any time, for any reason, as long as they have the cognitive capacity to understand what they're doing. And under specific circumstances, the agent's authority terminates automatically — even without a formal revocation.

Here's how revocation works under Michigan's Uniform Power of Attorney Act (UPOAA), what triggers automatic termination, and how to ensure third parties are properly notified.

The Principal's Right to Revoke

Under the UPOAA, a principal can revoke a power of attorney by:

• Executing a written revocation that clearly identifies the original POA and states the principal's intent to revoke
• Executing a new power of attorney that expressly revokes the prior one
• Destroying the original document with the intent to revoke

The most reliable method is a signed, notarized written revocation. Oral revocations are legally effective under Michigan law, but they're difficult to prove and even harder to enforce with banks and financial institutions that have the original POA on file.

Notifying Third Parties

Revoking the POA between the principal and agent isn't enough. Banks, financial institutions, healthcare providers, and other third parties who received a copy of the original POA must be notified of the revocation. Until they receive actual notice, they can continue to rely on the original document in good faith.

Best practice: Send a copy of the signed revocation to every institution that received the original POA, via certified mail with return receipt. This creates a documented chain showing exactly when each institution received notice.

If a bank continues to honor the revoked POA after receiving notice of revocation, they lose the statutory good-faith protection and can be held liable for transactions the former agent conducts.

Automatic Termination Events

Under the UPOAA, a power of attorney terminates automatically when:

• The principal dies
• The principal revokes it (as described above)
• The POA specifies a termination date or event, and that date or event occurs
• The purpose of the POA has been accomplished
• The principal becomes incapacitated and the POA is not durable (non-durable POAs expire upon incapacity)

Under the UPOAA, all POAs executed on or after July 1, 2024, are presumed durable unless the document states otherwise. This means they survive incapacity by default — which is usually exactly what families caring for aging parents want.

Agent Resignation

The agent can also resign their appointment. Under the UPOAA, an agent can withdraw by providing written notice to the principal and, if the principal is incapacitated, to any successor agent named in the document, the guardian or conservator if one has been appointed, and any co-agent.

If no successor agent is named and the principal lacks capacity, the agent's resignation creates a gap in legal authority that may require guardianship or conservatorship to fill.

When Revocation Makes Sense

Common reasons families revoke a power of attorney include:

• Agent misconduct: The agent is mismanaging funds, making unauthorized transactions, or self-dealing
• Relationship changes: Divorce, estrangement, or family conflict makes the named agent inappropriate
• Updated planning: The parent wants to name a different agent or include "hot powers" (gifting, trust creation, Lady Bird deeds) that the original document didn't authorize
• UPOAA modernization: An older POA may lack the statutory protections of the 2024 UPOAA, making a revocation-and-replacement worthwhile

Revocation vs. Guardianship

If your parent signed a POA but the named agent is now acting against the parent's interests, revocation is the preferred remedy — as long as the parent has capacity to revoke. If the parent lacks capacity, the family may need to petition the probate court for guardianship, at which point the court can supersede the existing POA and appoint a new decision-maker.

The Michigan Power of Attorney & Guardianship Kit includes POA revocation templates with third-party notification letters, plus the complete guardianship filing sequence for situations where the principal can no longer act on their own behalf.

Key Takeaway

A power of attorney is a living document. Review it regularly — when family circumstances change, when Michigan law updates (as it did with the 2024 UPOAA), or when the agent's fitness changes. Revocation and replacement are straightforward as long as your parent has capacity. After capacity is lost, the options narrow dramatically.

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