Well, the U.S. has a law that if you attempt to withdraw 10G out of the bank, the bank is supposed to notify the Feds. In fact, the banks notify the Feds if is less than 10K - that is how Rush got tagged. So while 100K may not be a big deal in the business world, I would have thought the government would have been notifed. Just a uneducated assumption on my part.
That’s withdrawing or depositing 10k or in cash and they care about it because Uncle Sam wants his tax from you. Same for deposits. They care about this because cash is a convenient method in money laundering and tax evasion. Even under 10k, you can get reported for structuring if you routinely deposit/withdraw cash in large amounts since the IRS operated (they can’t just seize it anymore though) under the assumption that you’re trying to evade their rule and are engaging in tax evasion or money laundering.
I have wired and been wired more than 10k on many occasions and never had any problems. There’s a record of who you received it from and who you sent it to. With cash, there is no record.