Understanding Mail and Wire Fraud: A Comprehensive Guide

By BMA Law Research Team

Direct Answer

Mail fraud and wire fraud are federal crimes defined in the United States Code. Mail fraud is prohibited by 18 U.S.C. § 1341. The statute makes it illegal to use the United States Postal Service or any private or commercial carrier to execute a scheme to defraud another person or to obtain money or property by false or fraudulent pretenses.

Wire fraud is covered by 18 U.S.C. § 1343. This provision criminalizes the use of any electronic communications network, such as telephone lines, radio, television, or the internet, to carry out a fraudulent scheme. Both statutes require proof of three basic elements: (1) a scheme to defraud, (2) intent to defraud, and (3) the use of mail or wire communications in furtherance of that scheme.

Violations can result in severe penalties, including up to 20 years imprisonment per count, fines, and restitution to victims. The statutes apply regardless of the amount of money involved, and each separate mailing or transmission can constitute a distinct offense.

• Mail fraud requires the use of the postal system or private carriers to advance a fraudulent scheme.
• Wire fraud covers any electronic communication, including phone calls, emails, and online messaging.
• Both crimes demand proof of a deliberate intent to deceive and a concrete scheme.
• Each mailed letter or electronic transmission can create a separate count.
• Penalties may include lengthy prison terms, substantial fines, and mandatory restitution.

Why This Matters

Understanding the distinction between mail fraud and wire fraud is essential for anyone who conducts business, raises capital, or communicates with clients. A single email that misrepresents material facts can trigger a wire fraud charge, while a mailed brochure containing false promises can expose a company to mail fraud liability. The federal reach of these statutes means that state‑level defenses often do not apply.

For individuals and businesses facing potential fraud allegations, the stakes include not only criminal prosecution but also civil suits, damage to reputation, and loss of contracts. Early recognition of the legal risks allows parties to adjust communication practices, seek competent counsel, and mitigate exposure before enforcement actions begin.

How It Actually Works

1. Identify the scheme. Determine whether the alleged conduct involves a scheme or artifice to defraud and whether it was carried out using the United States Postal Service or any interstate wire communication.
2. Establish the elements. For mail fraud, the prosecution must prove (1) a scheme to defraud, (2) intent to defraud, and (3) use of the mail; for wire fraud, the same three elements apply with the use of wire communications (18 U.S.C. §§ 1341, 1343).
3. Trace the communications. Collect copies of letters, postcards, emails, text messages, or phone call records that were sent in furtherance of the scheme. Each transmission can serve as a separate count.
4. Link the defendant to the scheme. Show that the alleged wrongdoer knowingly participated in, directed, or benefited from the fraudulent plan.
5. Consider the jurisdiction. Federal courts have original jurisdiction over mail and wire fraud offenses; state courts may also have concurrent jurisdiction under certain circumstances.
6. Assess the penalties. Each count carries a potential fine and up to 20 years imprisonment, with enhancements for large‑scale fraud or prior convictions.
7. Prepare for discovery. Anticipate subpoenas for postal records, electronic metadata, and financial statements that can corroborate the use of mail or wires.
8. Explore defenses. Common defenses include lack of intent to defraud, the absence of a scheme, or the communications not being used in furtherance of any fraudulent purpose.

Common Mistakes

• Assuming that a simple typo or misaddressed letter automatically creates mail fraud liability.
• Confusing “wire communications” with any phone call; only interstate or foreign electronic transmissions qualify.
• Failing to preserve electronic evidence such as email headers or text message logs before they are deleted.
• Overlooking the need to prove intent; merely making a false statement is insufficient without a purposeful scheme to defraud.
• Relying on state law definitions that differ from the federal statutes governing mail and wire fraud.
• Neglecting to consider that each separate mailing or wire transmission can constitute a distinct count, inflating potential exposure.

Frequently Asked Questions

What is the legal definition of mail fraud?

Mail fraud is a federal crime defined in 18 U.S.C. § 1341. It occurs when a person devises a scheme to defraud another and uses the United States Postal Service or any private carrier to execute the scheme.

How does wire fraud differ from mail fraud?

Wire fraud is defined in 18 U.S.C. § 1343. It involves a fraudulent scheme that is carried out by electronic communications, such as telephone, internet, or any interstate wire transmission, rather than by mail.

Can a single act be charged as both mail and wire fraud?

Yes. If a defendant uses both the postal system and electronic communications to further the same fraudulent scheme, prosecutors may bring separate counts for each offense. Each count carries its own statutory penalties.

What are the potential penalties for mail or wire fraud?

Both statutes allow for imprisonment of up to 20 years per count and the imposition of fines. In addition, the court may order restitution to victims for any losses caused by the fraud.

Next Steps

If you suspect mail or wire fraud, document all communications and preserve any physical evidence. Contact a qualified attorney or a trusted arbitration service to evaluate your options and protect your interests.