Power of attorney in Wyoming: the rules, signing, who to name

Updated 2026-10-18

The short answer

A Wyoming financial power of attorney is durable by default, so it keeps working if you lose capacity unless it says otherwise. The law needs only your signature, but sign before a notary. A notarized power of attorney must be accepted, or questioned with a certification request, within seven business days.

A financial power of attorney lets someone you trust pay your bills, talk to the bank and look after your money if you can't. Wyoming's rules are simple, and one small step at signing gives your agent real leverage later.

This page walks through those rules in plain words. It is one of our estate planning guides by state. If you are new to the idea, start with what a power of attorney does, then come back here.

Is a Wyoming power of attorney durable?

Yes, by default. A power of attorney made under Wyoming's law is durable unless it expressly says it ends when you become incapacitated (W.S. 3-9-104).

"Durable" means it keeps working after a stroke, a fall or memory loss. That is usually the reason to sign one. Our post on durable power of attorney explains why this matters everywhere.

Wyoming adopted the Uniform Power of Attorney Act for documents signed on or after January 1, 2018. A power of attorney signed earlier stays valid if it was valid when signed (W.S. 3-9-106). If yours is older, it is worth a fresh look.

Some people want a document that starts only when a doctor says they can't manage. Our post on springing powers of attorney covers the trade-offs.

How do I sign one in Wyoming?

The legal rule is one sentence. You sign it, or someone else signs your name in your conscious presence at your direction (W.S. 3-9-105).

No witnesses. No notary needed for the document to be valid.

But sign before a notary anyway. When you acknowledge your signature before a notary, the law presumes it is genuine. And only an acknowledged power of attorney gets Wyoming's bank acceptance rules.

The simple plan:

  1. Fill in the document, including a backup agent.
  2. Take it to a notary. Many banks have one on staff.
  3. Sign in front of the notary, who completes the acknowledgment.

Wyoming's health care document is different. It needs a notary or two witnesses. Our Wyoming medical power of attorney guide covers it.

Is there an official Wyoming form?

Yes, an optional one. The statute includes a statutory form power of attorney (W.S. 3-9-301). You don't have to use it. A lawyer-drafted document that is signed properly works just as well.

Will my bank have to accept it?

If it is notarized, yes, with limited exceptions. This is the best reason to visit the notary.

Someone asked to accept an acknowledged power of attorney must do one of two things within 7 business days: accept it, or ask your agent for a signed certification or an English translation (W.S. 3-9-120). Once they get what they asked for, they must accept within 5 business days.

They also may not demand a different form. If your bank prefers its own paperwork, it can't insist on it for powers your document already grants.

Refusal is allowed only for listed reasons, such as:

  • A good-faith belief the document isn't valid or the agent lacks authority.
  • A report of suspected abuse to a government agency.
  • Knowing the document or the agent's authority has ended.

A wrongful refusal can lead to a court order and liability for attorney fees and costs. Banks that accept in good faith are protected when they rely on it (W.S. 3-9-119).

A few small steps still help:

  • Give your bank and investment firm a copy while you are well.
  • Keep the original where your agent can find it, with a note saying where.
  • Tell your agent where you bank and who your advisor is.

What can my agent do, and what can't they?

Your document sets the scope. A broad financial power of attorney usually covers everyday matters: paying the propane bill, depositing Social Security, filing taxes, getting the fence fixed.

Your agent is a fiduciary: legally required to act in your interest and follow what you wrote.

Some powers exist only if your document spells them out (W.S. 3-9-201):

PowerIncluded in a general grant?What Wyoming requires
Creating, changing or revoking a living trustNoAn express grant
Making giftsNoAn express grant
Creating or changing survivorship rightsNoAn express grant
Creating or changing beneficiary designationsNoAn express grant
Handing the job to someone elseNoAn express grant
Waiving a survivor benefit in an annuity or retirement planNoAn express grant
Exercising fiduciary powers you hold, or disclaiming propertyNoAn express grant

There is also a guardrail. Unless your document says otherwise, an agent who isn't your spouse, an ancestor (such as a parent) or a descendant (such as a child) can't use these powers to give themselves, or someone they support, an interest in your property.

If you have a living trust, the first row matters. Wyoming's trust law lets an agent revoke or amend a revocable trust only if the trust or the power of attorney expressly allows it (W.S. 4-10-602). Our post on what a living trust is explains how the two documents work together.

Who should I name as my agent?

The real questions are practical. Is this person careful with money and paperwork? Can they get to your house, your bank and your mailbox, even in a long Wyoming winter? Will they keep records your family can see?

A short checklist:

  • Trust: would you hand them your checkbook today?
  • Distance: in a big state, how far away do they live?
  • Time: do they have room in their life for this, maybe for years?
  • Backup: who steps in if your first choice can't? Our post on having a backup in every role explains why this matters.

Many people choose a sister, a nephew or a longtime friend. Our post on naming a friend as power of attorney covers what to talk through first.

Here is a typical case, a composite. Linda is 67 and lives in Sheridan. Her son lives in Denver. She names her friend Pat, who checks on the house and feeds the horses when Linda travels, as her agent, with her son as backup. She signs at her bank in front of a notary.

Some people would like a professional standing by, first or behind a friend. A Kinly membership includes a financial power of attorney written for your state, and Trella Trust Company can be named as your agent or as the backup. You set the order.

What if I never sign one?

If you lose capacity with no power of attorney, your family may need to ask a court to appoint someone to manage your money. That takes time and money, and a judge decides who serves. Our post on conservatorship vs power of attorney explains the difference.

A power of attorney ends at death. After that, your will and personal representative take over. Our Wyoming probate and small estates guide covers that part.

Wyoming signing checklist

StepRequired by law?Why do it
Sign the document yourselfYesIt is the only legal requirement
Sign before a notaryNoSignature is presumed genuine, and banks must answer within 7 business days
Name a backup agentNoYour first choice may be ill, busy or far away
Expressly grant trust, gift and beneficiary powers if you want themYes, for those powersA general grant does not include them
Give copies to your bank and investment firmNoFewer delays when your agent needs to act
Sign a separate health care power of attorneyYes, for medical decisionsA different document with its own signing rules

Common questions

Does a power of attorney need to be notarized in Wyoming?

Not to be valid. Wyoming requires only your signature. But a notarized power of attorney is presumed genuine, and only a notarized one triggers the rules that make banks respond within seven business days.

Is a Wyoming power of attorney durable?

Yes. It stays in effect if you become incapacitated unless it expressly says it ends then.

Can my bank refuse my Wyoming power of attorney?

Only for reasons the law lists, such as a good-faith belief it isn't valid or a report of suspected abuse. A bank can't demand its own form instead. A wrongful refusal can cost the bank attorney fees and costs.

Is my power of attorney from before 2018 still valid in Wyoming?

Yes, if it was valid under the law in effect when you signed it. It is still worth having an older document reviewed to be sure it says what you want today.

Can my agent change my living trust in Wyoming?

Only if your trust or your power of attorney expressly allows it. A general grant of financial powers is not enough.

Sources

This page is general information, not legal or financial advice. Laws vary by state.

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