Appendix K in the FFIEC BSA-AML examination manual can be cited for the premise that banks need a basic profile for domestic consumer customers. (In my opinion, that includes occupation, employer, purpose of the account, types of deposit and payment mechanisms expected, etc. Getting dollar amounts is ridiculous.) That, combined with "threshold" monitoring should be enough.
If examiners say you need more, your bank has to deal with their personal opinions. If auditors say you need more, well, you hired them and you pay them. You are entitled to demand they have better judgment.
A "risk based" program isn't supposed to assume that everyone is high risk.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.