How much cash can you deposit in a bank per month?
Key takeaways
While there’s no legal limit on how much cash you can deposit monthly, banks must file a Currency Transaction Report (CTR) with the Financial Crimes Enforcement Network (FinCEN) for certain cash transactions over $10,000.
Cashier’s checks, traveler’s checks, and money orders all count as a cash deposit.
Depositing large amounts of cash isn’t inherently bad, but you may want to take some proactive steps to do so safely.
Is there a monthly limit on cash deposits?
There’s technically no legal limit to how much cash you can deposit into a bank account in one month.
Why people think there is a limit
There are plenty of common myths about cash deposits, like:
Banks always flag deposits over $10,000 as illegal.
Depositing cash too often gets you in trouble.
All large cash deposits are suspicious to banks.
The $10,000 rule explained (CTR reporting)
What is a currency transaction report (CTR)?
Banks are required to file a CTR with the Financial Crimes Enforcement Network (FinCEN) when a customer deposits more than $10,000, either all at once or in multiple deposits in a short period of time.
What counts toward the $10,000 threshold
For CTR purposes, cash, cashier’s checks, traveler’s checks, and money orders all count toward the $10,000 threshold.
Important clarification
The $10,000 threshold generally applies per day, not per month or per deposit.
Does depositing cash trigger an IRS investigation?
When a CTR is filed
A CTR is an automatic compliance form, but it’s not a red flag that triggers an IRS investigation on its own.
CTR vs. audit
While the CTR is a form filed by a bank about a transaction, a bank audit is a more complete review of a bank’s compliance with anti-money laundering (AML) programs. The IRS may also perform audits on individuals or businesses which could include a review of bank accounts, but a CTR filing doesn’t necessarily mean the IRS will audit your account.
What actually raises red flags:
Unusual activity that differs significantly from your typical account pattern may prompt additional review by the bank. Red flags may also include multiple cash deposits totaling over $10,000, or someone who tries to cover up where the large deposits are coming from.
What is structuring (and why it’s a problem)?
Structuring definition
Structuring refers to separating cash deposits of more than $10,000 into multiple, smaller deposits that are less than $10,000.
Examples of structuring
Depositing amounts just under $10,000 repeatedly (like $9,900)
Depositing cash at multiple bank branches to try to stay below the $10,000 threshold
Depositing $10,000 or more across various accounts to try to avoid reporting
Why structuring is illegal
Structuring is often an attempt to skirt or break AML laws, which is why it’s illegal.
How much cash can you deposit without reporting?
There is no “safe” amount
Banks are allowed to file reports on deposits below $10,000 if they think there might be suspicious activity.
Suspicious Activity Reports (SARs)
Banks may file SARs with FinCEN if activity on an account makes them think someone is laundering money, committing fraud, sending money to terrorist organizations, or committing other types of financial crime.
Bank-specific cash deposit limits
Branch deposit limits
Most banks don’t limit how much cash you can deposit, so in-branch is often best if you have a large amount of cash to add to your account.
ATM cash deposit limits
ATMs are usually only able to take in a limited number of bills at once. Each bank will differ, but ATMs will generally be better for smaller cash deposits.
Business vs. personal accounts
Banks must report cash deposits of more than $10,000 for both business and personal accounts. However, business accounts receiving over $10,000 in cash from a customer in the course of trade or business generally must also file Form 8300 with the IRS within 15 days.
Legitimate reasons people deposit large amounts of cash
Cash-based jobs or businesses
Certain businesses, like restaurant owners or small shop owners, tend to have more cash-based transactions.
Selling personal property
Someone selling a car or boat, for example, may receive a cash payment from the buyer.
Gifts or inherited cash
Inheritance or a generous gift may be paid out in cash.
Savings kept in cash
Some people prefer to save up a large amount of cash before depositing it into their account.
How to deposit large amounts of cash safely
Deposit it all at once
Depositing cash in a single transaction reflects the full amount and avoids the appearance of structuring.
Keep records
It can be helpful to record how much cash you deposited and when, along with where the cash came from.
Be honest if asked
If your bank asks about a deposit, providing accurate information can help clarify the source of funds.
What happens after a large cash deposit?
Funds availability
Cash deposits made in person are often available the same business day, though policies can vary by bank and deposit method.
Bank questions or documentation requests
Your bank may ask questions or ask for extra documentation if you bring in an unusually large amount of cash, or if you start frequently depositing a lot of cash.
Reporting happens in the background
With transactions over $10,000, your bank files a CTR automatically. If there’s nothing suspicious, most customers aren’t likely to hear about it or even know it was filed.
Common mistakes to avoid
Trying to avoid reporting
Intentionally attempting to avoid reporting requirements, sometimes called structuring, is illegal under federal law.
Depositing without documentation
Documenting where, how, why, and from whom you received the cash may help if the bank has any questions.
Assuming reporting means trouble
If a bank files a CTR for your cash deposit, it’s simply a compliance process — it doesn’t automatically mean you’re in trouble or did something wrong.
Bottom line
While there’s generally no limit on how much cash you can deposit in a personal bank account, banks do have reporting requirements on cash deposits over $10,000. Depositing large amounts of cash in person and keeping good records can be wise if you have a significant amount of cash to deposit.
If you have cash on hand and are interested in savings account options, Raisin can help. Visiting Raisin’s Marketplace will help you compare multiple savings accounts at once so you can find the right account for your needs.
Frequently asked questions
Will depositing $10,000 get me in trouble?
This type of cash deposit does require that your bank file a CTR, though it doesn’t automatically mean you’re in trouble.
Can I deposit $20,000 in cash at once?
You can, but your bank will need to file a CTR since it’s over $10,000.
Is it better to deposit cash in smaller amounts?
It’s often wise to deposit cash all at once rather than breaking it into smaller chunks, since that can be perceived as an attempt at structuring.
Do banks report cash deposits under $10,000?
Banks may report cash deposits of any amount if there’s something suspicious going on, but they’re not typically required to.
The above article is intended to provide generalized financial information designed to educate a broad segment of the public; it does not give personalized tax, investment, legal, or other business and professional advice. Before taking any action, you should always seek the assistance of a professional who knows your particular situation for advice on taxes, your investments, the law, or any other business and professional matters that affect you and/or your business.
© 2026 Raisin SE. All rights reserved.
The Raisin name and logo are trademarks of Raisin SE. All other trademarks, logos, marks, and brand names are the property of their respective owners.
*APY means Annual Percentage Yield. APY is accurate as of April 8, 2026. Interest rate and APY may change after initial deposit depending on the terms of the specific product selected. Minimum opening deposit is $1.00.
Raisin is not an FDIC-insured bank, and FDIC deposit insurance only covers the failure of an insured bank.
Raisin is not an NCUA-insured credit union. NCUA deposit insurance only covers the failure of an insured credit union.
Raisin does not hold any customer funds. Customer funds are held in various custodial deposit accounts. Each customer authorizes the Custodial Bank to hold the customer’s funds in such accounts, in a custodial capacity, in order to effectuate the customer’s deposits to and withdrawals from the various bank and credit union products that the customer requests through Raisin.com. The Custodial Bank does not establish the terms of the bank or credit union products and provides no advice to customers about bank or credit union products offered by the applicable bank or credit union through Raisin.com. Each customer also authorizes the Service Bank to move funds among the various banks and credit unions at the customer’s request. First International Bank & Trust (FIBT), Member FDIC, is the Service Bank. Bell Bank and Starion Bank, each Member FDIC, are the Custodial Banks.
†Based on $250,000 in FDIC or NCUA insurance coverage per insurable category of ownership at each partner bank or credit union on the Raisin platform (each a "Product Bank"), when aggregated with all other deposits held by you at such Product Bank and in the same insurable category. Deposits made through Raisin will be eligible to receive deposit insurance from the FDIC or the NCUA (each a "Deposit Insurer") in accordance with and up to the maximum amount permitted by law at each Product Bank. Raisin is not a bank or credit union and does not hold any customer funds. Funds are held at FDIC-insured banks and NCUA-insured credit unions. Deposit insurance covers the failure of an insured bank or credit union. Certain conditions must be satisfied for pass through deposit insurance coverage to apply. Customers may choose to deposit funds with identically registered accounts at different Product Banks on the Raisin platform to be eligible for Deposit Insurer coverage up to $10 million for individual accounts and $20 million for joint accounts when at least 40 Product Banks are utilized. Please be aware, however, that any deposits you have at a Product Bank, whether through the Raisin platform or outside the Raisin platform, that you may hold in the same capacity (such as in an individual capacity or joint capacity) count toward the applicable Deposit Insurer's deposit insurance maximum amount, and any such amounts that you hold in the same capacity at a Product Bank that exceed the maximum insurance coverage by the applicable Deposit Insurer will not be insured. For more information on FDIC deposit insurance, please see here. For more information on the NCUA share insurance fund, please see here. You are solely responsible for monitoring the amount of funds you have on deposit at each a Product Bank, whether through the Raisin platform or outside the Raisin platform, to confirm that the deposits you hold in the same capacity at each Product Bank do not exceed the maximum deposit insurance coverage provided by the applicable Deposit Insurer.