Basically, a notarized letter can be legally accepted since someone else verified your identity. However, just because it is legal does not mean the bank has to accept it. The bank can utilize its own separate policy for verification such as a photo identification. Thus, every bank is different.
The bank's policies of accepting only their verified form of identification exist because the bank itself is doing the verification and not relying on someone else verifying (i.e., the notary).
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If I use a sworn affidavit to confirm my identity, is it sufficient?

I understand the importance of confirming your identity. Have you already obtained a sworn affidavit for this purpose?

Yes.

In what context do you need to confirm your identity using the sworn affidavit?

For banking purposes.

Is there anything else the Lawyer should know before I connect you? Rest assured they'll be able to help with confirming your identity for banking purposes.

No.

Hello. Thank you in advance for using AskaLawyer. I am KhariP, and I am an attorney with over 20 years of experience, ready to answer your questions.
How may I help you?

I need to know if a notarized verification letter will be sufficient for verifying my identification with the bank.

Basically, a notarized letter can be legally accepted since someone else verified your identity. However, just because it is legal does not mean the bank has to accept it. The bank can utilize its own separate policy for verification such as a photo identification. Thus, every bank is different.
The bank's policies of accepting only their verified form of identification exist because the bank itself is doing the verification and not relying on someone else verifying (i.e., the notary).

I have not heard from you; do you have any more questions for me about the notary?

I will close out the question because I did not hear from you for a couple of days. Thanks for using AskaLawyer!

I still wanted more information on this issue.

The question was closed because I contacted you yesterday and asked if you had any more questions. There was no response, thus, the question was closed. If you wish to ask further questions, please contact our customer service team at 415-202-5633 to learn how to ask further questions. Thank you for using AskaLawyer!