A bank or other financial institution must file a Currency Transaction Report whenever you conduct a cash transaction of more than $10,000 in a single business day, or several smaller cash transactions that add up to more than $10,000 that same day. The rule comes from the Bank Secrecy Act, and it applies to deposits, withdrawals, currency exchanges, and other transfers of physical money. So the short answer to when a CTR is required: any time cash crosses the $10,000 line at a covered institution, whether in one trip or several.
The $10,000 Cash Threshold
Federal regulations require every financial institution other than a casino, which follows separate rules, to file a report for each deposit, withdrawal, currency exchange, or other transfer involving more than $10,000 in cash.1eCFR. 31 CFR 1010.311 – Filing Obligations for Reports of Transactions in Currency The purpose of the transaction does not matter. Depositing business receipts, pulling out cash for a car, breaking small bills into hundreds — if the amount is over $10,000, the report gets filed. The threshold itself comes from the Secretary of the Treasury’s authority under federal statute to set reporting rules for domestic currency transactions.2Office of the Law Revision Counsel. 31 USC 5313 – Reports on Domestic Coins and Currency Transactions
You do not file anything. The obligation is entirely on the institution, which collects your identifying information at the teller window and submits the report on its own. There is no fee to you, and the filing does not mean you are suspected of anything. It is a routine compliance step triggered by the dollar amount, nothing more.
What Counts as Cash
Only physical money triggers a CTR. Under the regulations, “currency” means the coin and paper money of the United States or any other country that circulates as legal tender, and a “transaction in currency” means the physical transfer of that money from one person to another.3eCFR. 31 CFR 1010.100 – General Definitions Wire transfers, personal checks, cashier’s checks, and electronic payments do not count, because those leave their own digital record through other banking channels.
Foreign cash still counts. The bank converts the amount to U.S. dollars using that business day’s exchange rate to decide whether you have crossed $10,000, and the report captures both the foreign amount and the dollar equivalent.4Financial Crimes Enforcement Network. Frequently Asked Questions Concerning Completion of Part II of FinCEN Form 104, Currency Transaction Report
How Same-Day Cash Transactions Are Combined
You cannot slip under the threshold by making two or three smaller trips. Federal regulations require financial institutions to treat multiple currency transactions as a single transaction when the institution has knowledge that they are by or on behalf of the same person and the total exceeds $10,000 during any one business day.5eCFR. 31 CFR 1010.313 – Aggregation Deposit $6,000 in the morning and $5,000 in the afternoon, even at two different branches of the same bank, and a CTR is filed once the combined amount crosses the line.
The window is a “business day,” defined as the day on which a bank routinely posts a particular transaction to a customer’s account.3eCFR. 31 CFR 1010.100 – General Definitions Cash brought in at night, on a weekend, or over a holiday is treated as received on the next business day. Banks run automated monitoring that links transactions to the same customer across branches, so split deposits get caught as a matter of course.
Which Institutions Have to File
The Bank Secrecy Act reaches well beyond traditional banks. Institutions that must file CTRs include:
- Banks and credit unions, whether federally or state-chartered.
- Brokers and dealers in securities.
- Money services businesses such as check cashers, money transmitters, currency exchangers, and sellers of money orders or traveler’s checks.
- Casinos and card clubs, which follow slightly different sections of the regulations but are still covered.
- Any other person subject to supervision by a state or federal bank supervisory authority.
If you hand over more than $10,000 in cash at any of these, expect a CTR.6Financial Crimes Enforcement Network. Money Services Business (MSB) Registration
Why You Should Not Try to Stay Under the Threshold
Deliberately breaking a cash transaction into smaller pieces to avoid the report is a separate federal crime called structuring. Under federal law, it is illegal to structure, or help someone else structure, any transaction with a financial institution for the purpose of evading CTR reporting requirements.7Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement Prohibited The underlying money does not have to be dirty. Legitimate savings or business income becomes the basis for a charge the moment you intentionally split it to dodge the threshold.
A basic structuring conviction carries up to five years in federal prison. If the structuring involves more than $100,000 in a 12-month period or occurs alongside another federal crime, the maximum doubles to ten years.7Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement Prohibited The government can also pursue civil forfeiture of the cash itself, meaning the money can be seized before any conviction.8Internal Revenue Service. Civil Seizure and Forfeiture
Banks also watch for the pattern. They are required to file a Suspicious Activity Report on any transaction of $5,000 or more that appears suspicious, even if it falls below the CTR line. A run of deposits just under $10,000 typically produces a SAR, which, unlike a CTR, does signal suspected wrongdoing to law enforcement and is filed without any notice to you. Trying to stay under the radar usually pulls more scrutiny than a straightforward large deposit would.
When a Large Cash Transaction Does Not Produce a CTR
Some large cash transactions are exempt. The exemptions fall into two groups.
Automatically Exempt
Banks are not required to file CTRs on transactions with:
- Other banks, in their domestic operations.
- Departments or agencies of federal, state, or local government.
- Entities created under federal, state, or local law that exercise governmental authority.
- Companies whose stock is listed on the New York Stock Exchange or American Stock Exchange or designated as a Nasdaq National Market Security, and their majority-owned subsidiaries.9eCFR. 31 CFR 1020.315 – Transactions of Exempt Persons
Businesses the Bank Can Designate
A bank may also exempt a non-listed commercial customer such as a local retailer or restaurant that meets several conditions: an account at the bank for at least two months (or a risk-based assessment by the bank), frequent cash transactions above $10,000, and organization or registration to do business in the United States.9eCFR. 31 CFR 1020.315 – Transactions of Exempt Persons The bank files a FinCEN Form 110 (Designation of Exempt Person) within 30 days of the first transaction it wants to exempt and reviews eligibility at least once a year.
What the Bank Will Ask You For
When your cash transaction triggers a CTR, the bank completes FinCEN Form 112 using information it collects from you at the counter:
- Full legal name of the person conducting the transaction and any person on whose behalf it is conducted.
- Social Security Number or Taxpayer Identification Number.
- Date of birth and physical address.
- Government-issued identification, typically a driver’s license, passport, or state ID card, with the document number.
- Account numbers involved.
- Transaction details: the exact dollar amount, whether it was cash in or cash out, and the type of transaction.
The bank has to collect this even from long-standing customers, and it is responsible for accuracy, since filings with missing or incorrect information may be rejected by the Financial Crimes Enforcement Network.10Financial Crimes Enforcement Network. Frequently Asked Questions Regarding the FinCEN Currency Transaction Report (CTR) There is no rule against a teller telling you a CTR is being filed. That is different from a Suspicious Activity Report, which the bank is legally barred from disclosing.
If the Cash Goes to a Business Instead of a Bank
The CTR requirement covers financial institutions. If you pay more than $10,000 in cash to any other trade or business, whether in one transaction or in two or more related transactions, that business must file IRS Form 8300 instead.11Internal Revenue Service. Bank Secrecy Act Car dealerships, jewelers, real estate agents, and attorneys are common examples.
Form 8300 uses a broader definition of cash than the CTR. Along with coins and paper money, it includes cashier’s checks, money orders, bank drafts, and traveler’s checks with a face value of $10,000 or less when received in certain types of transactions. Personal checks are not included. The business has 15 days after receiving the cash to file, and it must send you a written notice by January 31 of the following year telling you the report was filed with the IRS.12Internal Revenue Service. Instructions for Form 8300