Currency Transaction Report (CTR)
Report for cash transactions exceeding $10,000.
Detailed Explanation
A Currency Transaction Report (CTR) must be filed by financial institutions for each deposit, withdrawal, exchange of currency, or other payment or transfer which involves a transaction in currency of more than $10,000 during one business day. This requirement (under the Bank Secrecy Act) helps trace large cash movements that could be linked to criminal activity. 'Structuring' transactions to avoid this threshold is itself a crime.