ARTICLE TAKEAWAYS
A signature guarantee is a stamp provided by an eligible guarantor that certifies:
The institution that provides the certification and guarantee of the signature pledges the financial backing of the institution. A medallion guarantee is also a signature guarantee but is insurance-backed and must contain a signature of an authorized representative of the guarantor institution.
Note: American Funds Service Company doesn’t accept notarization from a notary public in lieu of a signature guarantee.
This is not an all-inclusive list, and exceptions may apply. Contact us for specific requirements based on your situation.
If linking a bank account and the bank account registration does not include the names of all the account owners, then the bank account owners' signatures must be guaranteed.
An Add/Update Bank Information form (PDF) must be completed with a signature guarantee for each bank account owner and returned by mail.
A signature guarantee from the Capital Group account owner is required if a withdrawal is requested and any of the following apply:
In cases where a change of account registration is requested, a signature guarantee is required when:
The following institutions generally can provide signature guarantees: