At the major issuers — USPS, Western Union, and MoneyGram — the limit on money orders is $1,000 per order for domestic use. There’s no cap on how many you can buy in one visit, but once your cash purchases hit $3,000 in a single day, federal law requires the seller to record your ID and personal information, and at $10,000 the institution files a report with the Treasury.
The $1,000 Per-Order Cap
A single domestic money order tops out at $1,000 at USPS, Western Union, and MoneyGram.1USPS. Money Orders – The Basics If you need to send more, you buy multiple money orders. A $2,400 rent payment, for example, means three separate money orders.
Some retailers set lower per-order caps. 7-Eleven locations may limit a single money order to $500 depending on the provider used at that store. Walmart sells money orders with a maximum fee of $1 per order.2Walmart. Money Orders If you need the full $1,000 on one piece of paper, USPS and dedicated money-transfer counters are the most reliable options.
USPS does not cap the number of money orders you can purchase in a single visit, though the reporting rules below kick in once the daily cash total crosses specific thresholds.
International Money Orders Are No Longer Sold by USPS
USPS previously offered international money orders with a $700 maximum ($500 for El Salvador and Guyana), but the Postal Service stopped selling them effective October 1, 2024, and foreign postal operators stopped cashing previously issued ones by October 1, 2025.3Federal Register. Removal of International Money Transfer Service-Outbound and International Money Transfer Service-Inbound To send money abroad, private wire transfer services or international bank drafts are the main remaining alternatives.
What It Costs to Buy Multiple Money Orders
Because of the per-order cap, larger payments mean stacking fees. USPS charges $2.55 for money orders up to $500 and $3.60 for amounts between $500.01 and $1,000.4USPS. Money Orders Three $1,000 USPS money orders run $10.80 in fees. The same purchase at Walmart would cost $3 or less, since Walmart caps its fee at $1 per order regardless of amount.2Walmart. Money Orders Fees at other retailers and convenience stores generally fall between $1 and $5 per order. Banks and credit unions sometimes waive the fee for customers with certain account types but may charge $5 or more otherwise.
The $3,000 Daily Threshold: ID and Record-Keeping
Once your cash purchases of money orders reach $3,000 in a single day, the seller has to log the transaction and verify your identity. This is required by the Bank Secrecy Act and applies regardless of which issuer you use. At USPS, the clerk completes PS Form 8105-A, a Funds Transaction Report.1USPS. Money Orders – The Basics At banks and other financial institutions, 31 CFR 1010.415 requires the seller to record your name, address, Social Security number (or alien identification number), date of birth, the type and serial numbers of each money order, and the dollar amounts, and keep that record for five years.5eCFR. 31 CFR 1010.415 – Purchases of Bank Checks and Drafts, Cashiers Checks, Money Orders and Travelers Checks
You’ll need to show a valid, unexpired government-issued photo ID. A driver’s license, state-issued non-driver ID card, passport, or current military ID generally works. The clerk records the specific identifying information from the document, such as the state of issuance and the ID number.5eCFR. 31 CFR 1010.415 – Purchases of Bank Checks and Drafts, Cashiers Checks, Money Orders and Travelers Checks An expired license will not work; federal regulations specifically require unexpired identification under the Bank Secrecy Act’s Customer Identification Program.6eCFR. 31 CFR Part 1020 – Rules for Banks
If you don’t hold a deposit account with the institution, the clerk will also record your full legal name, current address, date of birth, and Social Security number or alien identification number.5eCFR. 31 CFR 1010.415 – Purchases of Bank Checks and Drafts, Cashiers Checks, Money Orders and Travelers Checks
The $10,000 Threshold: Currency Transaction Report
When cash transactions at a financial institution exceed $10,000 in a single day, the institution has to file a Currency Transaction Report (CTR) with the Financial Crimes Enforcement Network (FinCEN).7eCFR. 31 CFR 1010.311 – Filing Obligations for Reports of Transactions in Currency The filing is automatic and does not mean you’re suspected of anything. You don’t fill out any paperwork; the institution handles it.
Why You Can’t Split a Large Purchase to Stay Under
Deliberately breaking a large cash purchase into smaller pieces to stay below the $3,000 or $10,000 thresholds is called structuring, and it’s a federal crime. Under 31 U.S.C. 5324, it is illegal to structure or help structure any transaction with a financial institution for the purpose of evading these reporting requirements.8Office of the Law Revision Counsel. 31 USC 5324 – Structuring Transactions to Evade Reporting Requirement Prohibited This applies even when the money is completely legitimate. The crime is the act of evasion, not the underlying transaction.
Structuring can carry up to five years in federal prison. The government can also pursue civil forfeiture of any property involved in the violation under 31 U.S.C. 5317, meaning the funds themselves can be seized.9Office of the Law Revision Counsel. 31 USC 5317 – Search and Forfeiture of Monetary Instruments Common patterns that draw scrutiny include buying $2,900 in money orders at one location and then another $2,900 at a different branch, or sending a friend to a second counter to split what would otherwise be a single payment.
The practical takeaway: if you legitimately need more than $3,000 in money orders in one day, buy them in one go and show your ID. The record-keeping itself has no consequences for you. The attempt to avoid it does.
Suspicious Activity Reports Can Be Filed at Lower Amounts
Beyond the automatic CTR, money order sellers can file a Suspicious Activity Report (SAR) when something looks off. For money services businesses, which include most money order sellers, the SAR filing threshold is $2,000 or more in suspicious activity.10FinCEN. A Quick Reference Guide for Money Services Businesses A SAR is not triggered by a specific dollar amount alone. It gets filed when the seller sees red flags like:
- Transactions that consistently land just below reporting thresholds
- Two or more people who appear to be coordinating to split a single large purchase
- A customer who reduces the transaction amount or walks away after being told identification is required
- Different IDs on separate visits or identification that appears altered
You are never notified when a SAR is filed about you. The seller is legally prohibited from telling you.10FinCEN. A Quick Reference Guide for Money Services Businesses
If You’re the One Receiving Money Orders
The thresholds above apply to buyers. A business that accepts money orders as payment faces a separate obligation under IRS Form 8300. Any business that receives more than $10,000 in cash through a single transaction, or two or more related transactions, must file Form 8300 within 15 days.11Internal Revenue Service. IRS Form 8300 Reference Guide If the 15th day falls on a weekend or holiday, the deadline extends to the next business day.
Money orders count as cash for Form 8300 purposes when each individual money order has a face value of $10,000 or less and the payment is part of a designated reporting transaction, typically a retail sale of consumer goods, collectibles, or travel and entertainment services. They also count as cash in any transaction where the business knows the buyer is trying to avoid reporting requirements.12Internal Revenue Service. Instructions for Form 8300
Businesses that fail to file Form 8300 face civil penalties of at least $310 per return for negligent failures, with substantially higher penalties for intentional disregard. Willfully failing to file, or filing a false report, can bring fines up to $100,000 ($500,000 for a corporation) and up to five years in prison.11Internal Revenue Service. IRS Form 8300 Reference Guide The civil penalty amounts are adjusted for inflation annually.