Comment by username135

Over 10k in a day of cumulative deposits will automatically trigger a CTR (currency transaction report). Amounts over 3k can trigger a SAR (suspicious activity report) but those are typically at teller discretion unless its a very specific circumstance like a customer buying $2500 in traveller cheques but has a typical average balance under some low threshold.

All those reports go to the banks AML (Anti Money Laundering) group who have to follow specific reporting guidlines from big brother. Lots of data is used to determine your risk level, which gets assigned tonyou when you open an account, especially a business account. Depending on the sic codes you choose determines how heavily you are scrutinized by the banks interal risk structure.

I could go on but you get the gist.

Source: too many decades in financial services orgs