To deposit a large cash inheritance, schedule an appointment at your bank, bring your probate documents, and deposit the full amount in a single transaction so the bank can file the routine Currency Transaction Report that federal law requires for any cash deposit above $10,000. The report is paperwork, not trouble. What creates trouble is trying to avoid it by splitting the money into smaller deposits, showing up without documentation of where the cash came from, or misunderstanding that inherited cash is not taxable income under federal law.
The $10,000 Cash Reporting Rule
Any cash deposit over $10,000 in a single business day triggers a Currency Transaction Report filed by the bank with the Financial Crimes Enforcement Network at the U.S. Treasury.1eCFR. 31 CFR 1010.311 – Filing Obligations for Reports of Transactions in Currency The threshold applies to the combined total of your cash transactions at that bank on the same day, not to a single deposit slip.
The bank files the report, not you. A teller or banker fills it out using your full legal name, Social Security number, date of birth, address, and occupation.2FinCEN. FinCEN Currency Transaction Report Electronic Filing Instructions The institution has 15 calendar days from the date of the transaction to submit it.3eCFR. 31 CFR 1010.306 – Filing of Reports
A CTR on a legitimate inheritance is harmless. It does not flag you for investigation and does not imply wrongdoing. Banks process these constantly.
Do Not Split the Deposit
The biggest mistake people make with cash inheritances is breaking the money into smaller amounts to stay under $10,000. Federal law calls this structuring, and it is a crime whether or not the underlying cash is clean.4Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement Depositing $9,000 on Monday and $9,000 on Thursday from the same inheritance is the exact pattern the statute targets.
Penalties run up to five years in federal prison and substantial fines. If structured transactions exceed $100,000 within a twelve-month period or involve another federal violation, the maximum doubles to ten years.4Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement The government can also seize the funds through civil forfeiture.
Banks watch for this. When a financial institution suspects structuring, it must file a Suspicious Activity Report with FinCEN, a trigger that kicks in at $5,000.5Board of Governors of the Federal Reserve System. Frequently Asked Questions Regarding Suspicious Activity Reporting Requirements Unlike a CTR, a SAR is confidential, and federal regulations forbid the bank from telling you one was filed.6eCFR. 12 CFR 21.11 – Suspicious Activity Report You would not know until law enforcement asked.
Deposit the full amount at once. Let the bank file its CTR.
Documents to Bring
Banks have a legal obligation to understand the source of large cash transactions, and cash pulled from a home safe does not come with the paper trail a wire transfer does.7Federal Reserve Consumer Help. Can a Bank Build that trail before you visit the branch.
Get certified copies of the following from the probate court clerk:
- A certified death certificate for the person who left the inheritance.
- A copy of the will, if one exists, showing you as a named beneficiary.
- Letters testamentary if there is a will, or letters of administration if there is not. Both are court-issued documents confirming who has legal authority over the estate.
- A distribution order or receipt from the executor authorizing the specific share released to you.
Make sure the names on the court documents match your government-issued ID exactly. A mismatch between your driver’s license and the probate records can force delays and corrections.
When there is no will, state intestacy laws determine who inherits. The probate court appoints an administrator, typically following the same priority order as inheritance itself: surviving spouse, then children, then more distant relatives. The administrator’s letters of administration serve the same function at the bank as letters testamentary.
Many banks also ask you to complete an internal source-of-funds declaration listing the estate’s legal name, the executor, the date of the authorized distribution, and a brief explanation of how the cash came into your possession. Consistent answers backed by your court documents keep the deposit routine.
The Deposit Visit
Call the branch and schedule an appointment, ideally with a manager or someone who regularly handles large transactions. This gives the bank time to prepare counting equipment and a private space, and it spares you from doing this at a busy teller window. Confirm the branch’s procedures in advance.
Transporting the Cash
No federal law caps how much cash you can carry domestically. Even so, moving a large amount of physical currency has real risks. Use an inconspicuous bag, travel directly to the bank, and skip the stops. If the amount is large enough to worry you, ask the branch whether a security escort from your vehicle is available.
Law enforcement officers who encounter someone carrying a lot of cash during a traffic stop can seize it under civil asset forfeiture laws if they suspect it is tied to criminal activity. Keeping copies of your probate documents in the vehicle gives you evidence of the money’s origin if you are questioned.
At the Counter
The bank will count the bills with high-speed scanners that also check for counterfeits. You will receive a stamped deposit receipt when the count is finalized. Keep it permanently. It is your proof of the transaction if the IRS ever asks.
Cash deposits made in person to a bank employee must be available for withdrawal no later than the next business day.8eCFR. 12 CFR 229.10 – Next-Day Availability The multi-day holds people worry about apply to checks, not cash. Deposit on Monday, use the funds on Tuesday.
Taxes on an Inherited Cash Deposit
Federal Income Tax
Cash you inherit is not taxable income. The Internal Revenue Code excludes property acquired by bequest, devise, or inheritance from gross income.9Office of the Law Revision Counsel. 26 USC 102 – Gifts and Inheritances You owe no income tax on the deposit regardless of size. Interest or investment gains you earn on the money after it lands in your account are taxable in the year earned, like any other bank interest.
Federal Estate Tax
The federal estate tax is paid by the estate before assets reach you, not by you. For 2026, estates below $15,000,000 owe no federal estate tax, following the increase enacted by the One, Big, Beautiful Bill Act signed in July 2025.10Internal Revenue Service. What’s New – Estate and Gift Tax Most cash inheritances fall well below that line. If the estate does owe, the obligation belongs to the executor.
State Inheritance Tax
Five states impose an inheritance tax paid by the heir directly: Kentucky, Maryland, Nebraska, New Jersey, and Pennsylvania. Rates range from 0% to 16% depending on your relationship to the deceased. Spouses and children often qualify for full exemptions or sharply reduced rates; distant relatives and unrelated beneficiaries pay the highest percentages. If the person who left you the cash lived in one of these states, check the state’s rules before assuming the full amount is yours.
Foreign Inheritances
If your cash inheritance is more than $100,000 and comes from a foreign individual or foreign estate, you must file IRS Form 3520 by the due date of your federal income tax return, including extensions. It is an information return, not a tax bill, but the penalty for filing late is 5% of the unreported amount per month, capped at 25%.11Internal Revenue Service. Instructions for Form 3520 (Rev. December 2025) On a $200,000 foreign inheritance, that is $10,000 per month of delay. Domestic inheritances do not require Form 3520.
FDIC Coverage for Very Large Deposits
Federal deposit insurance covers $250,000 per depositor, per insured bank, for each account ownership category.12Federal Deposit Insurance Corporation (FDIC). Understanding Deposit Insurance Anything above that at a single bank is uninsured if the bank fails. Two ways to stay fully covered:
- Split the money across multiple FDIC-insured banks. The $250,000 limit applies separately at each institution.
- Use different ownership categories at the same bank. A single-owner account and a joint account each carry their own $250,000 limit, and payable-on-death beneficiaries can add further coverage.
Inheriting $400,000 and depositing it into one checking account leaves $150,000 exposed. For an inheritance of that size, work with your bank or a financial advisor to structure the accounts so every dollar falls inside the limits.
Records to Keep
Hold onto the estate’s final accounting, your probate documents, and the bank’s deposit receipt for at least as long as the IRS can audit the relevant tax year: generally three years, but six years if the IRS suspects a substantial understatement of income. These records prove the deposit was an inheritance, not unreported income, if a large cash deposit ever comes up on your bank statements during an audit.