Price fixing is illegal because when competitors secretly agree to set prices, buyers lose the competition that would otherwise push prices down. The Sherman Antitrust Act treats any such agreement as a felony, with no requirement that prosecutors prove the price was unreasonable or that anyone was actually harmed. Corporations face fines up to $100 million per violation. Individuals face up to 10 years in federal prison and fines up to $1 million.1Office of the Law Revision Counsel. 15 USC 1 – Trusts, Etc., in Restraint of Trade Illegal; Penalty
The Harm the Law Is Designed to Prevent
In a competitive market, companies try to win customers by lowering prices. A price-fixing agreement shuts that down. Prices stay artificially high no matter what happens to production costs or technology, and shopping around becomes pointless because the choices look different but cost about the same. The money consumers would have saved flows to the conspirators instead.
The damage reaches past prices. When companies can count on steady revenue from a coordinated arrangement, they have less reason to improve products or invest in new ideas. Quality can slide because no firm in the agreement fears losing customers to a more innovative rival. Smaller companies and new entrants also get squeezed out: the coordinated price acts as a floor that a startup with less capital cannot undercut profitably, so industries consolidate around whoever is already inside the agreement.
That combination of effects — higher prices, stagnant products, blocked competitors — is why federal law treats price fixing as automatically illegal rather than judging each case on whether the agreed price seems reasonable.
What Else Counts as Price Fixing
Prosecutors apply the same per se rule to several closely related forms of coordination among competitors:
- Bid rigging, where competitors decide in advance who will win a contract and the others sit out or submit intentionally high bids. This is especially common in government contracting.
- Market allocation, where competitors divide customers or territories so they do not have to compete with each other.
- Output restriction, where competitors agree to limit production, cutting supply so prices rise without any explicit agreement on price.
All three carry the same criminal penalties as a direct agreement on price, because they produce the same harm.
Criminal Penalties
Under the Sherman Act, price fixing is a federal felony. The headline numbers are up to $100 million for a corporation and up to $1 million and 10 years in prison for an individual, per violation.1Office of the Law Revision Counsel. 15 USC 1 – Trusts, Etc., in Restraint of Trade Illegal; Penalty
Those caps are not always the ceiling. A separate federal sentencing statute lets the court impose a fine of up to twice the conspirators’ gross gain or twice the victims’ gross loss, whichever is greater.2Office of the Law Revision Counsel. 18 U.S. Code 3571 – Sentence of Fine In large conspiracies, that alternative calculation routinely pushes fines well past $100 million.
Civil Lawsuits and Treble Damages
Criminal prosecution is only one side of the exposure. Under the Clayton Act, anyone injured by a price-fixing scheme can file a private suit, and a successful plaintiff recovers three times the actual damages plus attorney’s fees and court costs.3Office of the Law Revision Counsel. 15 U.S. Code 15 – Suits by Persons Injured A company that caused $50 million in provable harm could owe $150 million in a single civil case, on top of criminal fines.
Federal antitrust damages are generally limited to direct purchasers — buyers who dealt with the conspirators themselves rather than through a retailer or other middleman. More than 30 states have passed laws letting indirect purchasers bring antitrust claims under state law, so end consumers often still have a route to recovery depending on where they live.
Why the Real Cost Runs Higher Than the Fine
Two other rules make the financial hit worse than the sticker penalty suggests. First, fines and penalties paid to the government for a legal violation are not deductible as business expenses.4Office of the Law Revision Counsel. 26 U.S. Code 162 – Trade or Business Expenses On top of that, when a company is convicted or pleads guilty to an antitrust crime, two-thirds of any treble-damage payment — the punitive portion — cannot be deducted. Only the compensatory one-third qualifies.
Second, companies that depend on government work face debarment. A conviction for violating federal or state antitrust laws related to the bidding process can trigger a formal ban on receiving future government contracts.5eCFR. 48 CFR 9.406-2 – Causes for Debarment For a contractor, losing eligibility can hurt more than the fine.
Time Limits
Charges and lawsuits run on different clocks:
- The federal government has five years after the conspiracy ends to bring criminal charges. Because price fixing is treated as an ongoing offense, the clock does not start until the last act in furtherance of the agreement.6Office of the Law Revision Counsel. 18 U.S. Code 3282 – Offenses Not Capital
- Injured parties have four years from the date the cause of action accrues to file a private civil suit. If the federal government files its own case, that four-year clock pauses for the duration of the government proceeding and for one year afterward.7Office of the Law Revision Counsel. 15 U.S. Code 15b – Limitation of Actions8Office of the Law Revision Counsel. 15 U.S. Code 16 – Judgments
How to Report Price Fixing
Suspected price-fixing conspiracies can be reported to the Department of Justice Antitrust Division online, by mail, or by phone. Reports do not require a name or contact information.9United States Department of Justice. Report Antitrust Concerns to the Antitrust Division
Two programs reward people who come forward. Under the Corporate Leniency Policy, the first company to voluntarily disclose a conspiracy and fully cooperate can receive immunity from criminal prosecution for both the company and its cooperating employees.10United States Department of Justice. Leniency Policy Only the first through the door qualifies, which pressures co-conspirators to race each other to the government.11United States Department of Justice. Revised Leniency Policy FAQs
Individual whistleblowers can receive between 15 and 30 percent of any resulting criminal fine or recovery, provided the fine or recovery is at least $1 million.12United States Department of Justice. Reporting Antitrust Crimes and Qualifying for Whistleblower Rewards Corporate officers, directors, and compliance professionals are not eligible. A person who reports internally and whose company then self-reports can still qualify for a reward under certain conditions.