The Short Answer: Yes. The IRS probably already knows about many of your financial accounts, and the IRS can get information on how much is there. But, in reality, the IRS rarely digs deeper into your bank and financial accounts unless you're being audited or the IRS is collecting back taxes from you.
Government agencies, like the Internal Revenue Service, can access your personal bank account. If you owe taxes to a governmental agency, the agency may place a lien or freeze a bank account in your name. Furthermore, government agencies may also confiscate funds in the bank account.
Depositing a big amount of cash that is $10,000 or more means your bank or credit union will report it to the federal government. The $10,000 threshold was created as part of the Bank Secrecy Act, passed by Congress in 1970, and adjusted with the Patriot Act in 2002.
Banks and financial institutions must report any cash deposit exceeding $10,000 to the IRS, and they must do it within 15 days of receipt.
Your bank is required to tell you if your transactions require a special IRS form, which means you would typically know if the agency had this high level of access to your financial transactions. In most cases, the IRS doesn't monitor check deposits or bank transactions unless it has a distinct reason to do so.
Foreign or "offshore" bank accounts are a popular place to hide both illegal and legally earned income. By law, any U.S. citizen with money in a foreign bank account must submit a document called a Report of Foreign Bank and Financial Accounts (FBAR) [source: IRS].
Under the Bank Secrecy Act, banks and other financial institutions must report cash deposits greater than $10,000. But since many criminals are aware of that requirement, banks also are supposed to report any suspicious transactions, including deposit patterns below $10,000.
If you deposit more than $10,000 cash in your bank account, your bank has to report the deposit to the government. The guidelines for large cash transactions for banks and financial institutions are set by the Bank Secrecy Act, also known as the Currency and Foreign Transactions Reporting Act.
The Law Behind Bank Deposits Over $10,000
The Bank Secrecy Act is officially called the Currency and Foreign Transactions Reporting Act, started in 1970. It states that banks must report any deposits (and withdrawals, for that matter) that they receive over $10,000 to the Internal Revenue Service.
Can I Withdraw $20,000 from My Bank? Yes, you can withdraw $20,0000 if you have that amount in your account.
The IRS requires any trade or business to file Form 8300 if they've received any cash payments over $10,000. Financial institutions such as a bank must also report all transactions by, through, or to the institution by filing a Currency Transaction Report for cash transactions that exceed $10,000.
Information statement matching: The IRS receives copies of income-reporting statements (such as forms 1099, W-2, K-1, etc.) sent to you. It then uses automated computer programs to match this information to your individual tax return to ensure the income reported on these statements is reported on your tax return.
All bank records are available to government investigators, including the IRS, through legal process which is easily obtained. In order to keep track of cash spending, the government also requires every business to report cash transactions over $10,000.
Banks that get deposits of more than $10,000 have to report those deposits to the federal government.
Note that under a separate reporting requirement, banks and other financial institutions report cash purchases of cashier's checks, treasurer's checks and/or bank checks, bank drafts, traveler's checks and money orders with a face value of more than $10,000 by filing currency transaction reports.
Using an ATM
You can make large deposits at an ATM, but your money might not be immediately available. The bank will file the CTR with the IRS and you won't need to take any other action.
You can sign up for a secret bank account online, but it is usually not recommended, since many of them require you to link an active checking account to it, which can be counter-productive. Ideally, you should visit a financial institution in person when setting up your account.
A Suspicious Activity Report (SAR) is a document that financial institutions, and those associated with their business, must file with the Financial Crimes Enforcement Network (FinCEN) whenever there is a suspected case of money laundering or fraud.
Unless it's an especially large check from a foreign source, you don't have to report personal check deposits to the Internal Revenue Service. However, if you deposit more than $10,000 in cash, you will need to complete and submit a tax form within 15 days.
Banks routinely monitor accounts for suspicious activity like money laundering, where large sums of money generated from criminal activity are deposited into bank accounts and moved around to make them seem as though they are from a legitimate source.