Yes, you can deposit cash into someone else's account, but the bank needs to know who the money is from
You can walk into a bank and deposit cash into another person's account if you have their account number or routing information. The bank will process it. However, the account holder may need to be present, or you may need written permission from them — rules vary by bank and by how much cash you're depositing.
The reason banks ask questions about cash deposits is federal law. Banks must report deposits of $10,000 or more to the government, and they must also watch for patterns that look suspicious — like someone regularly depositing large amounts of cash that don't match their job or known income. This is called anti-money laundering compliance, and it applies whether the money is yours or someone else's.
The practical result: small deposits (under $1,000) usually go through with minimal fuss. Larger deposits, or deposits made on behalf of someone else, may trigger questions about where the money came from and why you're depositing it rather than the account holder.
Key Takeaways
- You can deposit cash into someone else's account at their bank, but you will need their account number or permission to do so.
- Banks may require the account holder to be present or to sign a form authorizing you to make the deposit on their behalf.
- Deposits of $10,000 or more trigger a federal report, and banks also watch for patterns that look unusual, regardless of the amount.
- If you're depositing cash regularly into someone else's account, the bank may ask what the money is for and request documentation of its source.
What the bank will ask you
When you walk up to the teller with cash for someone else's account, expect to provide the account holder's name and account number. Some banks will ask for their ID or will call them to confirm the deposit is authorized. Smaller banks are more likely to know their customers and process this quickly; larger banks often have stricter procedures.
If the amount is large — the exact threshold varies by bank, but $5,000 is a common trigger — the bank may ask you to fill out a form stating who you are, who the money belongs to, and why you're making the deposit. This is not optional. If you refuse to answer, the bank can refuse the deposit.
Be honest about the source of the money. Common legitimate reasons include: you're helping a family member pay a bill, you're repaying a loan, you're splitting rent or household expenses, or you're a business making a payment to a vendor. The bank is not trying to accuse you of anything — they are following the law.
When the account holder needs to be present
Some banks require the person whose account it is to come in person if someone else is depositing cash on their behalf. This is especially true for larger amounts or if you're not a family member or authorized user on the account. Call the bank ahead of time and ask what their policy is.
If the account holder cannot come in, ask if you can bring a signed letter from them authorizing the deposit. Many banks will accept this instead. The letter should include the account number, the amount being deposited, and the date. It does not need to be notarized, but it should be in the account holder's handwriting or signed by them.
Deposits over $10,000 and federal reporting
Any deposit of $10,000 or more triggers a Currency Transaction Report, which the bank files with the federal government. This is automatic and happens whether the money is yours or someone else's. You do not need to do anything — the bank handles it. The report does not mean you are under investigation; it is routine.
However, banks are also trained to watch for structuring — deliberately breaking up large amounts into smaller deposits to avoid the $10,000 threshold. If you deposit $9,000 one day and $9,000 the next day into the same account, the bank may flag this and ask questions. If you're helping someone move a large sum of money, it is better to deposit it all at once and let the bank file the required report than to try to split it up.
Deposits made regularly on someone else's behalf
If you are depositing cash into someone else's account on a regular basis — for example, you collect rent from tenants and deposit it into a business account, or you help an elderly relative manage their finances — the bank may ask for documentation after a few deposits. They may want to see a power of attorney, a rental agreement, or a letter explaining the arrangement.
This is not a problem if the arrangement is legitimate. Bring whatever documents explain the relationship and the source of the money. If you are a caregiver, a family member, or an authorized agent, say so. If the deposits are from a job or a business, bring pay stubs or invoices. The bank wants to know the money is not being stolen or laundered.
What happens if the bank refuses the deposit
A bank can refuse a deposit if they believe it violates their policies or the law. If this happens, ask why. Common reasons include: the account holder did not authorize it, the source of the money is unclear, or the pattern of deposits looks suspicious. If the reason is unclear, ask to speak to a manager.
If a bank refuses a deposit and you believe they are wrong, you can take your cash to a different bank or ask the account holder to deposit it themselves. You can also file a complaint with the bank's regulatory body — usually the Federal Deposit Insurance Corporation (FDIC) for banks, or the National Credit Union Administration (NCUA) for credit unions — but this is rarely necessary for a single refused deposit.
Alternatives to depositing cash in person
If you cannot get to the bank in person, or if the account holder is uncomfortable with you bringing cash, there are other options. Many banks allow account holders to deposit cash using an ATM, though limits explore — usually $1,000 to $5,000 per transaction depending on the bank. The account holder can do this themselves if they have access to a machine.
You can also use a money order, which you buy with cash and then deposit or mail. The account holder can deposit the money order themselves, or you can deposit it on their behalf — banks are often more comfortable with money orders than with large cash deposits because there is a paper trail. Money orders cost a few dollars, but they solve the problem of moving cash safely.
Frequently Asked Questions
Do I need the account holder's permission to deposit cash into their account?
Yes. You cannot legally deposit money into someone else's account without their knowledge or permission. If you do, it could be treated as theft. Always get permission first, and be prepared to show the bank proof of authorization if they ask.
Will the bank report me to the IRS if I deposit someone else's cash?
The bank will file a Currency Transaction Report for any deposit over $10,000, but this is routine and does not single you out. The IRS receives these reports but does not investigate every one. If the money is legitimate and you can explain where it came from, there is no problem.
Can I deposit cash into someone else's account without them being there?
It depends on the bank and the amount. Small deposits often go through without the account holder present. Larger deposits or deposits made regularly may require the account holder to be there or to sign a form authorizing you. Call the bank and ask about their specific policy.
What if I'm depositing money I borrowed from someone?
You can deposit borrowed money into your own account or someone else's account. The bank does not care whether the money is yours or borrowed — they only care that it is not stolen or from an illegal source. If the bank asks where the money came from, you can say it is a loan.
Is there a limit to how much cash I can deposit into someone else's account?
There is no legal limit, but banks may have their own policies. Very large deposits may require advance notice or may trigger additional questions. There is also no limit on how many deposits you can make, but regular large deposits may prompt the bank to ask about the arrangement.