Power of Attorney Requirements in Wyoming
Wyoming requires only the principal's signature on a power of attorney, while notarization is optional but makes the signature presumed genuine.
Last checked . General information, not legal advice.
Wyoming at a glance
- Notarization
- Optional, recommended
- A notarized signature is presumed genuine
- Witnesses
- None
- Uniform Power of Attorney Act
- Adopted (2017)
The rules in Wyoming
Does a power of attorney need to be notarized in Wyoming?
Notarization is optional in Wyoming, but a notarized signature is presumed genuine, which makes banks and others more likely to accept the document.
How many witnesses does a power of attorney need in Wyoming?
None. Wyoming does not require witnesses for a power of attorney.
Has Wyoming adopted the Uniform Power of Attorney Act?
Yes. The Uniform Law Commission lists the enactment in 2017.
Where do the Wyoming rules for powers of attorney come from?
They come from Wyo. Stat. Title 3 (wyoleg.gov PDF), 3-9-105, Wyoming 2017 SF0105, Enrolled Act No. 41 and Uniform Law Commission, Power of Attorney Act enactment history. We last checked them in October 2026. Laws change, so check the current statute before you rely on it.
How Wyoming compares
Wyoming is one of 16 jurisdictions that make notarization optional but recommended.
What this means in practice
Even where notarization is optional, banks, brokers and title companies often ask for a notarized power of attorney before they act on it. Notarizing is usually the safer choice.
Choose an agent you trust, name a backup, and give the agent a signed copy. Keep the original in a place your agent can reach.
You can revoke a power of attorney while you have capacity. Tell your agent and anyone who relied on it, in writing.
General information, not legal advice. Laws change, and cities can add their own rules, so check the current statute before you rely on it.