Cash transactions in the US over $10,000 have required special forms to be filed by the receiving party for well over a decade. This was to combat the Cocaine Cowboys of the ‘80’s. They’d regularly buy cars with cash.
Not true. Closed my MM acct. (more than $10K ) with a cash withdrawal four (4) years ago. ONLY had to write a check to myself.
Made a cash deposit over $10K a few months ago, didn't even have to fill out a deposit slip...the bank did that for me.