10k is the highest you can deposit in cash without being questioned, i think. where's willie d, our banker friend, to clarify?
Wasn't there some mope a few years ago on here who bragged about his prowess with bank accounts? Like balancing your account was tantamount to winning the Nobel Prize?
To answer your question, any cash deposit in a FDIC insured bank over $10M does require a CTR report to the bank's federal regulator (FRB, OCC, etc). If you continue to make cash deposits in a bank near the $10M limit, and someone @ you bank notices, they will also be required to file a SAR (suspicious activity report) with the bank's regulator. Some businesses which are cash-intensive can be exempted from SAR reporting, like grocery stores, bars, and other businesses who accept cash as a common form of exchange. Some random whore like RaeRae or JennaP walking into a bank, depositing wads of cash (pun intended) will undoubtedly trigger some alarm.
If you're a whore, just keep it in the mattress anyway. Your suitcase pimp is gonna burn through it soon enough, why not keep it close at hand and avoid all those pesky federal laws? Sheesh, how many times has Janine been to the pokey for money, and not sex?