There is no federal law that caps how much money you can deposit in a savings account or how large a balance you can hold. If your bank allows it, you can legally keep millions of dollars in a single account. The real limits are three: your bank’s own rules on how much you can move in one transaction, federal deposit insurance that only protects the first $250,000 per ownership category, and a reporting requirement that kicks in whenever you deposit more than $10,000 in cash on the same day.
Per-Transaction Limits Your Bank Sets
Banks generally do not cap your total balance. They want your deposits, because that money funds their lending. What they do cap is how much you can move in at once, and the ceiling depends on the method:
- Mobile check deposits are commonly capped between $2,500 and $5,000 per day for standard accounts. Premium or high-balance accounts often have higher thresholds.
- ATM deposits are often capped around $10,000 per day, depending on the machine and the bank.
- In-person teller deposits usually have no hard dollar limit, though cash over $10,000 triggers the federal reporting rule discussed below.
- Wire transfers can be very large, but your bank may require advance notice or charge a fee above certain amounts.
These caps come from your account agreement, not from federal law. If you need to make a deposit that exceeds your current limit, call your bank and ask about a temporary increase or switch to a method that allows more.
Cash Deposits Over $10,000
Whenever you deposit more than $10,000 in cash in a single day, your bank files a Currency Transaction Report with the Financial Crimes Enforcement Network.1eCFR. 31 CFR 1010.311 – Filing Obligations for Reports of Transactions in Currency The threshold covers the total of your cash transactions at that bank in one day, not just a single deposit. The report includes your name, Social Security number, address, and account details.
You do not fill out any form. The bank handles it, and filing must happen within 15 calendar days of the transaction.2Financial Crimes Enforcement Network. Frequently Asked Questions Regarding the FinCEN Currency Transaction Report (CTR) A CTR is routine and does not mean the bank suspects you of anything. Checks, wire transfers, and electronic payments do not trigger a CTR regardless of amount.
Do Not Break Up a Deposit to Stay Under $10,000
Federal law makes it a crime to split a large cash sum into smaller deposits specifically to stay below the reporting threshold. This is called structuring.3Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement Prohibited Depositing $4,500 three days in a row to avoid a $13,500 deposit can be charged as structuring even though each individual deposit is legal by itself.
The penalties are severe. A basic structuring conviction can bring a fine of up to $250,000, up to five years in prison, or both.4Office of the Law Revision Counsel. 18 USC 3571 – Sentence of Fine When structuring is part of a broader pattern of illegal activity involving more than $100,000 in a 12-month period, the maximum doubles to 10 years.3Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement Prohibited Deposit whatever cash you actually have and let the bank file whatever reports are required.
Only the First $250,000 Is Federally Insured
The Federal Deposit Insurance Corporation insures deposits at member banks up to $250,000 per depositor, per insured bank, for each ownership category.5Office of the Law Revision Counsel. 12 USC 1821 – Insurance Funds That cap applies to the combined total of all your deposits in the same ownership category at the same institution. If you hold a $200,000 savings account and a $100,000 certificate of deposit at the same bank, both in your name alone, only $250,000 of the $300,000 total is insured.
Anything above the cap is still legally your money. It just is not covered if the bank fails. In that scenario, you become an unsecured creditor of the failed institution and might recover some or all of the excess through the FDIC’s receivership process, but recovery is not guaranteed.
Credit unions offer the equivalent protection. The National Credit Union Administration runs the National Credit Union Share Insurance Fund, which provides the same $250,000 per-depositor, per-institution, per-ownership-category coverage.6National Credit Union Administration. Share Insurance Coverage
How to Insure More Than $250,000
Because coverage is calculated separately for each ownership category at each bank, you can insure well over $250,000 by structuring your accounts. The FDIC recognizes more than a dozen categories; a few matter most for individuals.7FDIC.gov. Account Ownership Categories
Joint Accounts
Each co-owner on a joint account is insured up to $250,000 for their share of all joint accounts at the same bank, so a two-person joint savings account is covered up to $500,000.8FDIC.gov. Joint Accounts The FDIC assumes equal ownership unless the bank’s records show otherwise. Joint coverage is separate from each owner’s single-account coverage. A married couple could each hold $250,000 individually and another $500,000 jointly at the same bank, insuring $1,000,000 total.
Trust Accounts
Revocable and irrevocable trust deposits are insured at $250,000 per eligible beneficiary named in the trust, up to a maximum of $1,250,000 per trust owner when five or more beneficiaries are named.9FDIC.gov. Trust Accounts A payable-on-death savings account naming three children as beneficiaries, for example, gets $750,000 of coverage. All of your revocable, formal, and irrevocable trust deposits at the same bank are combined for this calculation.
Multiple Banks
Deposits at each separately chartered FDIC-insured bank are insured independently, even when those banks share a common parent holding company.10eCFR. 12 CFR Part 330 – Deposit Insurance Coverage Some institutions participate in deposit-placement networks that automatically split a single large deposit across multiple banks to keep every dollar within FDIC limits while you deal with only one bank.
Large Deposits Are Not Immediately Spendable
Depositing money and being able to spend it are not the same thing. Federal Regulation CC sets the maximum time a bank can hold your deposit before making it available.11Federal Reserve. A Guide to Regulation CC Compliance The schedule depends on what and how you deposited:
- Next business day for cash handed to a teller, electronic payments including direct deposits and wire transfers, and U.S. Treasury, cashier’s, and certified checks deposited in person.
- Two business days for most other checks deposited in person or at your bank’s own ATM.
- Five business days for deposits made at an ATM your bank does not own.
Banks can also extend the normal hold on the portion of a day’s check deposits above $6,725 by a reasonable number of additional business days.12eCFR. 12 CFR 229.13 – Exceptions For newly opened accounts, the first 30 calendar days, the hold on the excess can run up to nine business days. Your bank must notify you whenever it places an extended hold and tell you when the funds will be available.
Expect Questions About Where the Money Came From
Federal anti-money laundering rules require banks to verify your identity and understand the source of large deposits.13Office of the Law Revision Counsel. 31 USC 5318 – Compliance, Exemptions, and Summons Authority When you make a sizable deposit, a teller may ask where the money came from. That is a compliance obligation, not idle curiosity.
Bring documentation. A sales contract for a property or vehicle, a closing disclosure from a real estate transaction, estate or inheritance paperwork, or a letter from an employer explaining a bonus or severance all work. If you cannot explain or document the source, the bank may refuse the deposit or place a temporary hold on the account.
Tax Consequences of a Large Balance
Putting money into a savings account is not itself a taxable event. The IRS does not tax you for moving money from one place to another. Interest the account earns is taxable as ordinary income in the year it becomes available to you.14Internal Revenue Service. Topic No. 403 – Interest Received Larger balances earn more interest and generate a larger tax bill.
Your bank will send Form 1099-INT early the following year if it paid you $10 or more in interest.15Internal Revenue Service. About Form 1099-INT, Interest Income If you earned less, you still have to report the interest on your return. The $10 threshold only decides whether the bank sends the form.
When Someone Else Deposits Money Into Your Account
If another person deposits a large sum into your savings account as a gift, the giver may need to file with the IRS. For 2026, one person can give up to $19,000 to another without filing a gift tax return.16Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Gifts above the annual exclusion do not automatically trigger a tax bill, but the giver must file Form 709 to report the excess. You, the recipient, do not owe income tax on a gift regardless of size.