Honest Services Fraud Defense: 18 U.S.C. § 1346 Explained

By Elizabeth Franklin-Best, Esq., and Christopher Zoukis, JD, MBA

Honest services fraud is one of the most powerful — and most contested — tools in the federal corruption arsenal. It lets the government charge mail or wire fraud not for stealing money, but for depriving the public or an employer of honest services. If you are under investigation on an honest services theory, get an honest services fraud lawyer reviewing the government’s theory now, because the Supreme Court has sharply limited what this statute can reach. At Elizabeth Franklin-Best, P.C., we defend individuals against honest services fraud allegations nationwide.

Honest services fraud is codified at 18 U.S.C. § 1346 and prosecuted through the mail and wire fraud statutes. Its history is a story of expansion and then judicial retrenchment, and the current, narrow boundaries of the offense are a defense resource that a capable defense uses fully.

Few federal charges have been cut back by the Supreme Court as repeatedly as this one, which makes honest services defense a field where appellate fluency wins cases at trial. Elizabeth Franklin-Best, who leads our firm, carries that fluency in her credentials: Best Lawyers in America 2026 recognition for Appellate Practice alongside a Chambers USA 2026 ranking for Litigation: White-Collar Crime & Government Investigations. We measure every honest services theory against the limiting decisions — Skilling, Percoco, Ciminelli — and against the elements the statute actually requires. If a § 1346 theory has surfaced in your case, schedule a paid, one-hour initial consultation so we can test it.

Honest Services Fraud: Quick Answer

Question	Answer
What is honest services fraud?	A mail or wire fraud charge for a scheme to deprive the public or an employer of the intangible right of honest services — codified at 18 U.S.C. § 1346.
What must the government prove?	A mail or wire fraud scheme that involves bribery or a kickback — the only two theories the statute reaches after Skilling.
What penalties can apply?	Because it is charged as mail or wire fraud, up to 20 years per count — up to 30 years where a financial institution is affected.
Does undisclosed self-dealing count?	No. After the Supreme Court’s Skilling decision, honest services fraud reaches only bribery and kickback schemes — not conflicts of interest alone.
Where does defense start?	With the theory itself — our paid, one-hour initial consultation asks first whether the government can locate a real bribe or kickback and a recognized fiduciary duty in your case.

Key Takeaways

• Honest services fraud is codified at 18 U.S.C. § 1346 and prosecuted through the mail and wire fraud statutes.
• It treats a scheme to deprive the public or an employer of “the intangible right of honest services” as a form of fraud.
• The Supreme Court’s Skilling decision limited the offense to its core: bribery and kickback schemes only.
• Undisclosed conflicts of interest, self-dealing, and ethical lapses are not honest services fraud unless a bribe or kickback is involved.
• The offense reaches both public officials and private employees who owe a duty of honest services.
• Percoco (2023) bars convicting a private citizen on a vague “special relationship” or de facto influence theory, and Ciminelli (2023) eliminated the right-to-control theory of wire fraud.
• Circuit decisions in 2025 show what still stands: employer-employee bribery schemes remain prosecutable, while convictions built on invalid theories keep getting unwound.
• Because it is charged as mail or wire fraud, it carries up to 20 years per count.
• The statute does not require proof of monetary loss — the “property” deprived is the intangible right itself.
• The Skilling limit is the central defense: a theory that drifts beyond bribery or kickbacks can be challenged at its foundation.

What Is Honest Services Fraud?

Honest services fraud is a particular theory of mail and wire fraud. The ordinary fraud statutes punish schemes to obtain money or property by deception. Honest services fraud punishes something different: a scheme to defraud another of “the intangible right of honest services.” Congress codified that idea in 18 U.S.C. § 1346, which provides that a “scheme or artifice to defraud” includes a scheme to deprive another of honest services.

The theory rests on the idea that certain people — public officials and private employees — owe a duty to act in the interest of the public or the employer they serve. When someone in that position secretly betrays that duty for private gain, the betrayal can be treated as a fraud, even though no money was directly stolen.

Honest services fraud reaches two broad settings. In the public sector, it targets officials who betray the public’s right to their honest service. In the private sector, it targets employees or fiduciaries who betray their employer. In both, the critical modern question is not whether a duty was breached in some general sense — it is whether the breach took the specific form the statute, as narrowed by the Supreme Court, still reaches.

The Skilling Limit: Bribery and Kickbacks Only

The most important thing to understand about honest services fraud is how narrow it has become. For decades, prosecutors used the theory expansively, reaching undisclosed conflicts of interest, self-dealing, and a wide range of ethical breaches. That expansion drew constitutional criticism — the theory seemed to have no clear limits, leaving people unable to know what conduct was criminal.

In Skilling v. United States, 561 U.S. 358 (2010), the Supreme Court confronted that vagueness problem. Rather than strike § 1346 down, the Court construed it narrowly. It held that honest services fraud reaches only the “core” of the pre-existing case law — bribery and kickback schemes. Courts since have stated the rule directly: § 1346 proscribes two, and only two, types of activity — bribery and kickbacks.

The consequence is decisive. Undisclosed self-dealing, a conflict of interest that was not revealed, a failure to disclose outside income, favoritism, or a violation of an ethics rule — none of these is honest services fraud unless it involves a genuine bribe or kickback. If the government’s theory of an honest services case cannot be reduced to a bribe-or-kickback scheme, the charge is built on sand.

Applied Insight: The first question in any honest services case is simple: where is the bribe or the kickback? If the government’s narrative is really about conflict of interest, non-disclosure, or self-dealing — without a third-party bribe or a kickback at its center — the Skilling limit supplies a direct, doctrinal challenge to the charge itself.

Percoco and Ciminelli: The 2023 Term Tightened the Screws

Thirteen years after Skilling, the Supreme Court returned to fraud doctrine and narrowed it again — twice on the same day. In Percoco v. United States, 598 U.S. 319 (2023), the defendant was a former gubernatorial aide who, between stints in government, took payments while running a campaign and leaned on state agencies. The jury was told it could convict if he had a “special relationship” with government and de facto control over its decisions. The Court held those instructions too vague to define who owes the public a duty of honest services: a private citizen’s clout, access, or influence does not by itself create the fiduciary obligation § 1346 requires.

The companion case, Ciminelli v. United States, 598 U.S. 306 (2023), struck down a different prosecutorial workhorse: the “right to control” theory, under which depriving a victim of economically valuable information was treated as taking its property. Wire fraud, the Court held, protects traditional property interests — not intangible control over decision-making. That matters here because honest services counts and property-fraud counts usually travel together in the same indictment, and Ciminelli closed the door the government often used when an honest services theory faltered.

One door remains open, and the defense must watch it. In Kousisis v. United States, 605 U.S. 114 (2025), the Court approved the fraudulent-inducement theory of property fraud — obtaining money through material misrepresentations is fraud even if the victim suffered no net economic loss, with materiality serving as the principal limit. Prosecutors who lose a § 1346 or right-to-control theory will frequently try to re-plead the same facts as fraudulent inducement, so an honest services defense has to anticipate the pivot, not just win the first round.

What Survives in 2026: The Circuits Draw the Lines

The courts of appeals spent 2025 mapping what is left of § 1346, and the emerging picture cuts both ways. On the government’s side of the ledger, the Second Circuit in United States v. Lopez, 143 F.4th 99 (2d Cir. 2025) — the FIFA bribery litigation — reinstated honest services convictions built on commercial bribery of soccer officials, reasoning that an employer-employee relationship is exactly the kind of well-accepted fiduciary bond the statute covers, that an employer’s own ethics codes can define the duty, and that a foreign setting does not put a scheme beyond § 1346 where the U.S. wires were essential to it. Percoco, the panel explained, governs the unusual case of a private citizen said to owe a duty to the public — it did not unsettle ordinary employment-based schemes. But the story did not end there: on January 12, 2026, the Supreme Court granted certiorari, vacated the Second Circuit’s judgment, and remanded in light of a pending motion to dismiss the indictment — leaving the panel’s reasoning instructive but its judgment undone, and the reach of § 1346 over foreign commercial bribery formally unsettled.

On the defense side, the First Circuit’s decision in United States v. Vavic, No. 22-1787 (1st Cir. May 30, 2025), from the college-admissions prosecutions, shows how convictions on stretched theories keep coming apart. Payments that went to the universities themselves could not be § 1346 bribes — a bribe must run to an agent who betrays the principal, not to the supposed victim — and because the jury returned a general verdict that may have rested on that invalid theory, the honest services count could not stand. The court treated the instructional problem as constitutional error, reviewable for harmlessness beyond a reasonable doubt.

Applied Insight: The 2025 circuit decisions teach a single discipline: identify, in one sentence, who paid whom, who was betrayed, and what recognized fiduciary duty was broken. If the government cannot complete that sentence cleanly — if the money flowed to the “victim,” or the duty rests on influence rather than a true agency relationship — both the charge and the jury instructions are vulnerable, and the instruction fight must be preserved from the start.

How Honest Services Fraud Is Charged

Honest services fraud is not charged as a freestanding crime. It is charged as mail fraud under 18 U.S.C. § 1341 or wire fraud under 18 U.S.C. § 1343, with § 1346 supplying the definition that a “scheme to defraud” includes a scheme to deprive another of honest services.

That means the government must prove the ordinary elements of mail or wire fraud — a scheme to defraud, the intent to defraud, and the use of the mail or interstate wires in furtherance of the scheme — and, on the honest services theory, that the scheme involved a bribe or kickback depriving the public or an employer of honest services. The mailing or wire need not itself be false; it need only be a step in executing the scheme.

Honest services fraud rarely appears alone. In a public corruption case it is typically charged alongside federal bribery, federal-programs bribery, Hobbs Act extortion, and conspiracy. Because it is one theory within a broader corruption indictment, a defense must address it both on its own terms and as part of the whole.

Public-Sector and Private-Sector Cases

Honest services fraud applies in two settings, and the analysis differs slightly in each.

In a public-sector case, the alleged victim is the public, and the duty is the official’s obligation to provide honest government service. These cases typically parallel a bribery theory: the official is said to have accepted a bribe or kickback in exchange for official action, depriving constituents of honest services. The defenses overlap heavily with bribery defenses — the absence of a corrupt agreement, the absence of an official act, and the bribery-versus-gratuity distinction.

In a private-sector case, the alleged victim is an employer, and the duty is the employee’s or fiduciary’s obligation of loyalty. The Skilling limit applies with full force here: a private employee’s undisclosed side arrangement, conflict of interest, or self-dealing is not honest services fraud unless it involved a bribe or kickback. Many private-sector honest services theories collapse precisely because, examined closely, they describe a conflict of interest rather than a bribe-and-kickback scheme.

Applied Insight: In private-sector cases, watch for the government recharacterizing an employee’s outside business interest, a failure to disclose, or a competing loyalty as honest services fraud. Unless a bribe or kickback supplied by a third party is genuinely part of the scheme, that recharacterization runs directly into the Skilling limit.

Penalties for Honest Services Fraud

Because honest services fraud is charged as mail or wire fraud, it carries those statutes’ penalties: up to 20 years in federal prison per count, and up to 30 years where the offense affects a financial institution. Indictments frequently charge multiple counts — one for each qualifying mailing or wire — so aggregate exposure can be substantial.

The consequences also include substantial fines, forfeiture of the proceeds of the scheme, and restitution. For a public official, a conviction typically means removal from office and the loss of public pension rights; for a private employee, the loss of a career and professional standing.

In federal court, the advisory United States Sentencing Guidelines drive the actual sentence. Honest services fraud raises a distinctive sentencing question: because the offense does not require monetary loss, the government and the defense often dispute how to measure the “benefit” or “loss” that drives the Guidelines range. That dispute — over the value of the bribe, the gain, or the loss — is frequently the most consequential part of a sentencing defense.

Defenses to Honest Services Fraud Charges

No two honest services cases are alike, and no lawyer can promise a result. But several defense themes recur, and matching them to the evidence is the core of building a strategy:

• No bribe or kickback. The conduct falls outside the bribe-and-kickback core that Skilling requires — it is, at most, a conflict of interest or non-disclosure.
• No corrupt agreement. Where the theory is bribery-based, the government cannot prove a genuine quid pro quo.
• No official act. In a public-sector case, the alleged conduct is not an official act under McDonnell.
• Lack of intent to defraud. The defendant did not act with the intent to deprive anyone of honest services.
• No duty of honest services. The defendant did not occupy a position carrying the fiduciary-type duty the theory requires — and after Percoco, influence or access alone does not create one.
• Invalid-theory instructions. Where a general verdict may rest on a legally invalid theory, the instructional error is constitutional and can require a new trial.
• Disclosure. The supposedly concealed interest or relationship was actually disclosed.
• Insufficient mail or wire nexus. The government cannot establish a qualifying use of the mail or interstate wires in furtherance of the scheme.
• Sentencing challenges. Even where conviction is likely, contesting the benefit or loss calculation can substantially reduce exposure.

The right combination depends entirely on the facts. Our role is to test the government’s proof element by element, develop the favorable record, and press every legitimate defense — during the investigation, in pretrial motions, at trial, and on appeal.

How Honest Services Investigations Begin

Honest services fraud is almost always part of a larger corruption or fraud investigation. It surfaces the way those cases do — through cooperating insiders, undercover operations, wiretaps, whistleblowers, inspector general referrals, audits, and related prosecutions. By the time a target learns of the investigation, the government has often gathered recordings, documents, and witness accounts over many months.

The early steps matter. Preserve all records, do not discuss the matter with potential witnesses, decline to give an unprepared interview, and consult an experienced honest services fraud lawyer before saying anything substantive. Because the offense turns on intent and on the existence of a genuine bribe or kickback, an early, careless account can hand the government the framing it needs.

Why Work With Elizabeth Franklin-Best, P.C.

Honest services cases reward defense lawyers who know the Skilling limit and the surrounding case law cold, who can tell the difference between a genuine bribe-or-kickback scheme and a recharacterized conflict of interest, and who can defend the charge both on its own and within a larger corruption indictment.

This is also a field where the difference between trial counsel and appellate counsel disappears: the winning arguments are instruction arguments, theory arguments, preservation arguments. Elizabeth Franklin-Best has spent her career making them — across more than 330 federal matters and over 100 federal appeals, she has appeared in all twelve federal circuits and the U.S. Supreme Court, holds Best Lawyers in America 2026 honors in Appellate Practice and a Chambers USA 2026 white-collar litigation ranking, and literally wrote the book on undoing convictions, Reversing Your Criminal Conviction. Alongside her, Managing Director Christopher Zoukis covers the sentencing and Bureau of Prisons dimensions of every case. We represent public officials and private employees nationwide at each stage of an honest services matter, appearing pro hac vice wherever the case sits.

Honest answers come before honest services: no firm can guarantee how a federal case ends, and we never suggest otherwise. What we deliver is a theory-first defense — does the government’s story contain a real bribe, a real fiduciary, a valid instruction? — and a frank assessment of how yours holds up. Put your case through that analysis by scheduling a paid, one-hour initial consultation.

Talk With an Honest Services Fraud Defense Lawyer

Fifteen years of Supreme Court decisions — Skilling, Percoco, Ciminelli — have turned honest services fraud into a charge with genuine doctrinal limits, and the 2025 circuit cases prove those limits still decide outcomes. Whether they decide yours depends on raising them early and preserving them well. Start that work with a confidential, paid, one-hour initial consultation with our team.