How Much Cash Can You Deposit Before It Is Reported?

In the US, your bank must report a cash deposit of more than $10,000. It files a Currency Transaction Report (CTR) with the Financial Crimes Enforcement Network (FinCEN) for any deposit, withdrawal, exchange or other transfer involving more than $10,000 in currency (31 CFR 1010.311). If you make several cash deposits in one business day, or someone makes them for you, the bank adds them together when it knows they're by or for the same person (31 CFR 1010.313).

There is no "safe" amount below that line. Breaking cash into smaller deposits so the bank won't file a report is a federal crime called structuring, even when the money is completely legal (31 U.S.C. 5324). A bank can also file a Suspicious Activity Report (SAR) on activity it finds suspicious, at any amount (31 CFR 1020.320).

The $10,000 figure is a reporting threshold, not a cap. Federal law doesn't limit how much cash you can deposit. Large deposits simply get reported.

This page covers US federal rules only. Other countries have their own cash reporting rules, and none of the thresholds below apply there.

The three reports, side by side

• Currency Transaction Report (CTR). Filed by the bank or other financial institution when one person's cash in, or cash out, is more than $10,000 in currency in one business day. It's due within 15 days of the transaction (31 CFR 1010.306).
• Form 8300. Filed by the business that received the cash when one buyer pays it more than $10,000 in cash, in one transaction or in related transactions. It's due within 15 days of receiving the cash.
• Suspicious Activity Report (SAR). Filed by the bank on activity it suspects. It's required from $5,000 in certain cases and voluntary at any amount, and is generally due within 30 days of the bank detecting the facts (31 CFR 1020.320(b)(3)).

You never file a CTR yourself. If you're a business that takes large cash payments, though, Form 8300 is your job, and a deposit of that cash can mean the bank files a CTR too.

How the bank's $10,000 rule works

In the US, the CTR rule comes down to a few precise points from FinCEN's regulations:

• "More than $10,000," in currency. Currency means coins and paper money, US or foreign (31 CFR 1010.100(m)). The CTR rule covers transactions in currency, so checks and wire transfers don't go on a CTR.
• Deposits aren't the only trigger. Withdrawals, currency exchanges and other payments or transfers in currency all count. For example, buying a cashier's check with more than $10,000 in cash is a payment in currency, so it's reportable (31 CFR 1010.311).
• One business day, one person. Multiple cash transactions count as one if the bank knows they are by or for the same person and the cash in, or the cash out, adds up to more than $10,000 that business day (31 CFR 1010.313(b)). Cash in and cash out are totaled separately.
• All branches count together. The bank's domestic branches are treated as one institution for this purpose. A night-drop, weekend or holiday deposit counts as received on the next business day (31 CFR 1010.313).
• The teller will ask who you are. Before completing a reportable transaction, the bank must verify and record the name and address of the person presenting it. It must also record the identity, account number and taxpayer ID of anyone the transaction is made for, such as your business (31 CFR 1010.312).

A CTR is a routine filing that banks must make for every qualifying cash transaction. It isn't an accusation, and it isn't a tax. Whether money is taxable is a separate question, decided by the income tax rules, not by whether a report was filed.

Structuring: why staying under $10,000 can be the crime

In the US, 31 U.S.C. 5324(a) makes it illegal to structure transactions with a bank "for the purpose of evading" the currency reporting requirements, or to help someone else do it (31 U.S.C. 5324). FinCEN's definition is broad. Structuring can happen in any amount, at one or more banks, on one or more days. The transactions don't need to exceed $10,000 at any single bank on any single day (31 CFR 1010.100(xx)).

What makes it a crime is the purpose. Depositing $9,000 because that's what you took in this week is ordinary banking. Depositing $9,000 instead of $18,000 so the bank won't file a report is structuring. That's true even if every dollar is legitimate income.

The criminal penalty is a fine, up to five years in prison, or both. Aggravated cases carry up to ten years: structuring while breaking another federal law, or as part of a pattern of illegal activity involving more than $100,000 in 12 months (31 U.S.C. 5324(d)). The same section also prohibits structuring to evade a business's Form 8300 report (31 U.S.C. 5324(b)).

Banks watch for this. A US bank must file a SAR for transactions of $5,000 or more that it suspects are designed to evade Bank Secrecy Act reporting. It may also file voluntarily on any amount (31 CFR 1020.320). A SAR is confidential, and the bank generally may not reveal to you, or anyone else, that it has filed one (31 CFR 1020.320(e)).

Form 8300: when your business is the one reporting

In the US, a trade or business that receives more than $10,000 in cash in one transaction, or in two or more related transactions, must file Form 8300 (31 CFR 1010.330; IRS Form 8300 Reference Guide). This obligation is separate from the bank's CTR. It applies when you receive the cash, whether or not you ever deposit it.

The rules that trip businesses up:

• "Cash" is wider than currency here. It includes US and foreign coins and currency. A cashier's check, bank draft, traveler's check or money order with a face amount of $10,000 or less also counts when it's received in a "designated reporting transaction" (a retail sale of a consumer durable, a collectible, or a travel or entertainment activity). It also counts when you know the instrument is being used to avoid reporting (31 CFR 1010.330(c)). Personal checks are not cash for Form 8300, and neither are cashier's checks over $10,000 (IRS reference guide).
• Related transactions. Transactions between the same buyer and seller within 24 hours are related. Transactions further apart are related if you know, or have reason to know, they're part of a series (IRS reference guide).
• Installments add up over 12 months. If the first cash payment is $10,000 or less, you add later payments received within a year of it. Once the total exceeds $10,000, you report within 15 days of the payment that pushed it over (31 CFR 1010.330(b)).
• Deadline. The return is due by the 15th day after you receive the cash (26 CFR 1.6050I-1(e)). You can file through FinCEN's BSA E-Filing System. Businesses that must e-file other information returns must also e-file Form 8300 (IRS reference guide).
• Tell the payer. By January 31 of the following year, you must give each person named on a Form 8300 a written statement. It must show your name and address, the total reportable cash you received from them during the year, and a note that the information is being reported to the IRS (26 CFR 1.6050I-1(f)). The IRS reference guide also asks for a contact person's name and phone number.
• Keep copies for five years (31 CFR 1010.330).
• Suspicious smaller payments. You may voluntarily file Form 8300 for a suspicious cash transaction of $10,000 or less. In that case, you don't send the payer a statement (IRS reference guide).

The IRS says businesses that don't comply can face civil and criminal penalties. Penalty amounts are adjusted over time, so check the IRS reference guide for current figures.

Worked example: one store's cash week

Sample figures for illustration only. Maple Street Appliances is a small retailer that banks all of its takings in one business account. Here is one week of its cash, plus one follow-up payment.

Monday: $4,800 deposited. Register takings from many customers.

• Bank CTR: no. The deposit isn't more than $10,000.
• Form 8300: no. No single buyer paid more than $10,000.

Tuesday: $10,500 deposited in two trips. The manager deposits $6,300 at the main branch. After a busy afternoon, the assistant manager deposits $4,200 at another branch of the same bank.

• Bank CTR: yes. Both deposits are for the store on one business day, and branches count together.
• Form 8300: no.

Wednesday: $12,500 deposited. Customer A pays $11,400 in currency for a kitchen package. That cash goes to the bank with $1,100 of other takings.

• Bank CTR: yes. The deposit is more than $10,000 in currency.
• Form 8300: yes. The store must file within 15 days of Wednesday.

Thursday: $6,900 deposited. Customer B pays a $6,000 cash deposit on a $14,000 order. That cash goes to the bank with $900 of other takings.

• Bank CTR: no.
• Form 8300: not yet. $6,000 isn't more than $10,000.

Five weeks later: Customer B pays the remaining $8,000 in cash on delivery.

• Bank CTR: only if the store's cash deposits that business day exceed $10,000.
• Form 8300: yes. $6,000 + $8,000 = $14,000 within 12 months, so the store must file within 15 days of this payment.

What the example shows:

1. Two different filers can report the same cash. On Wednesday, the bank files a CTR on the deposit and the store files Form 8300 on the sale. Neither report replaces the other.
2. Tuesday shows aggregation. Neither deposit alone was over $10,000, but the bank knew both were for the store on the same business day, so they're treated as one transaction. Spreading deposits across branches, tellers, days or banks in order to avoid a report would be structuring. Here the store had an ordinary business reason for the second trip, and the bank reported anyway.
3. Customer B's payments were reportable even though each one was under $10,000. Form 8300 aggregates installment payments on one transaction over 12 months.
4. Paperwork follows in January. By January 31 of the next year, the store owes customers A and B a written statement of the reportable cash it received from each of them.

A store like this makes the 12-month count much easier if it issues a numbered receipt for every cash payment and records which customer and order it belongs to. That record also helps at month end when you reconcile the bank account against your sales.

If your business handles a lot of cash

Nothing here limits how much legitimate cash you can bank. The practical habits are about records, not amounts:

• Deposit takings on your normal schedule and in the amounts you actually received.
• Keep the source records for each deposit, such as register reports, invoices or receipts, so you can show where the cash came from.
• Record cash sales in your books the same way as card sales. See what bookkeeping involves and how account reconciliation works.
• If customers pay you more than $10,000 in cash, put the 15-day Form 8300 deadline and the January 31 statement into your small business tax calendar.

If you're unsure whether a particular payment needs a Form 8300, ask a tax professional or check the IRS Form 8300 Reference Guide before the 15 days run out.

Frequently Asked Questions

Can I deposit $9,000 at a time so it isn't reported?

Not if the reason for the amount is to avoid a report. In the US, keeping deposits below the threshold for that purpose is structuring, a federal crime even when the money is legal. Banks also watch for it and can file a Suspicious Activity Report. Deposit cash as you actually receive it, and let the bank file whatever reports apply.

Are check deposits and wire transfers reported like cash?

The Currency Transaction Report covers transactions in currency, meaning coins and paper money, so check deposits and wires don't go on a CTR. A bank can still file a Suspicious Activity Report on any kind of transaction it finds suspicious.

Does a Currency Transaction Report mean I'm under investigation or owe tax?

No. Banks must file a CTR for every qualifying cash transaction. It's an information report to FinCEN, not an accusation and not a tax. Whether the money is taxable depends on what it is under the normal income tax rules, not on whether it was reported.

Will my bank tell me if it files a Suspicious Activity Report?

No. Under FinCEN's rules, a SAR and any information that would reveal its existence are confidential, and the bank generally may not disclose them to the person involved.

I sold my personal car for $15,000 in cash. Do I have to file Form 8300?

Generally no. FinCEN's rule says cash received other than in the course of your trade or business isn't reportable on Form 8300; its own example is a person selling a personal motorboat for $12,000 in cash. If you sell cars as a business, the answer changes. If you deposit the $15,000 in cash, though, your bank will file a CTR because the deposit is more than $10,000.