What is a Medallion Signature on a Power of Attorney?

Brokerage accounts have special rules for your attorney-in-fact. If your attorney-in-fact needs to buy or sell stocks held in physical form or held in a brokerage account, your attorney-in-fact will need to add a medallion signature “guarantee” to your power of attorney form.

The Medallion Signature is a stamp provided by a financial institution guaranteeing to a transfer agent that the signature of your attorney-in-fact signature is actually his or her signature.  Requests to buy or sell stocks are reviewed by someone referred to as a Transfer Agent.  The Transfer Agent cannot authorize transactions requested by your attorney-in-fact without the Medallion Signature guarantee evident on the power of attorney form.

Your attorney-in-fact may need to locate a bank participating in the Medallion Signature program.  The bank should be one the attorney-in-fact does business with that is willing to guarantee their signature. The bank will place the medallion stamp on the power of attorney form.

One thought on “What is a Medallion Signature on a Power of Attorney?

  1. s m gretz

    I have been to three different banks trying to get a medallion stamp on my power of attorney. Each medallion person has said it is illegal for them to stamp a POA. I then contacted a lawyer who said the same thing. Any suggestions?


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