Medallion Signature Guarantee Online in the UK - What You Need to Know

When dealing with US securities, many people in the UK run into the term Medallion Signature Guarantee. It’s not something you’ll need every day, but when it comes up, it’s usually critical to complete an investment transfer. A Medallion Signature Guarantee is a special type of authentication required for financial transactions involving US securities. It verifies the identity of the signer and protects against forgery or fraud. Unlike a simple witness or a notary stamp, the medallion signature guarantee comes from a participating financial institution authorised under specific US programmes.

Why is It Required in the UK?

If you hold US stocks, bonds, or mutual funds while living in the UK, you may be asked to provide this guarantee when transferring or selling those assets. The requirement isn’t imposed by UK regulators but by US financial institutions that need assurance the signature on the transfer form is genuine.

For example, if you inherit shares from a relative in the US, or you want to transfer your own holdings to another person, the receiving company will almost always demand a Medallion Signature Guarantee—even if you live abroad.

Who Needs a Medallion Signature Guarantee?

·         Investors in US securities - Anyone in the UK who owns US shares and wants to transfer or sell them.

·         Beneficiaries of estates - Those inheriting American investments from relatives.

·         Executors and trustees - When handling estates that include US-listed securities.

·         Joint holders - If one party wants to transfer ownership or make changes to the account.

Can You Get a Medallion Signature Guarantee Online?

If you are looking for a Medallion Signature Guarantee online, you need to visit a branch of a participating bank in person. However, demand for remote services has grown, and online options are increasingly being offered. These allow identity verification and documentation to be handled digitally, saving time for those who cannot easily travel to a physical branch.