Answer:
I'm not certain I understand, but will review the basics and hope you find your answer there. An SSN is a Social Security number. An EIN is an employer identification number. Both are referred to as taxpayer identification numbers or TINs.
A grantor trust, one that is revocable by the person who established it, can use either the SSN of the grantor or a unique EIN assigned to the trust. The choice is the grantor's, not the financial institution's.
An account opened for a grantor trust must reflect the name of the trust in the account title. That is true regardless of which type of number is employed.
First published on BankersOnline.com 9/07/09