https://www.reuters.com/business/finance/us-banking-lobby-groups-oppose-proposed-tax-reporting-law-2021-09-17/
"The new proposal will require financial services companies to track and submit inflows and outflows from every bank account above a minimum threshold of $600 during a year to the Internal Revenue Service (IRS), including breakdowns for cash."
Also, the present requirement is and has been $10,000 and not for regular checks, but for CASH and only for DEPOSITS.
https://money.usnews.com/banking/articles/if-you-deposit-a-lot-of-cash-does-your-bank-report-it-to-the-government
"Banks report individuals who deposit $10,000 or more in cash. And if an individual makes cash deposits over several days that are less than, but still add up to, $10,000, that person will be reported, Castaneda says."