Intent to commit a crime is not, by itself, a crime in the United States. What you think, imagine, or privately plan stays inside the protected space of your own head. The moment that intent is paired with an outward action, though — a concrete step toward carrying out the plan, an agreement with someone else, a request that another person do it, or a serious threat of violence — the law treats it as prosecutable conduct and you can be charged, convicted, and sent to prison.
The practical question is almost never “is my intent criminal?” It is “has my intent shown itself in a way the government can prove?” Several distinct offenses exist to catch intent at different stages, and each has its own trigger.
Why Thinking About a Crime Isn’t One
Nearly every crime requires two things: a voluntary physical act and a guilty state of mind. Lawyers call these actus reus and mens rea.1Legal Information Institute. Mens Rea You have to do something, and you have to have meant to do it (or at least been reckless about it). Imagining a robbery on your morning commute is not a crime. Walking into a bank with a weapon and a note is.
That rule keeps the criminal justice system anchored to conduct rather than to beliefs, moods, or unpopular opinions. Without it, prosecutors could reach into people’s heads for angry daydreams and momentary impulses no one ever acted on.
One narrow category runs the other direction. Strict liability offenses — statutory rape being the most familiar example, along with some regulatory offenses like selling contaminated food — hold you responsible for the act regardless of what you intended.2Legal Information Institute. Strict Liability But a physical act is still required. There is no corner of American criminal law where thought alone is enough.
Attempt: Taking a Substantial Step
Attempt is where intent first starts carrying serious consequences. You can be charged with attempt when you move past planning and take what the law calls a “substantial step” toward actually committing the offense. A substantial step is more than searching the internet, more than talking it over, and more than buying ordinary items that could be useful for crime. It has to be conduct that strongly confirms you were genuinely trying to pull the crime off.3Tanaka Criminal Law Casebook. Model Penal Code MPC 5.01 Criminal Attempt
The line between “mere preparation” and a substantial step is where most attempt cases are decided. Studying a bank’s floor plan at home could be preparation. Driving to that bank wearing a mask with a loaded gun on the seat is almost certainly a substantial step. Courts look at the totality of your conduct and ask whether it makes your criminal purpose unmistakable.
The Model Penal Code, which has shaped attempt law across much of the country, treats conduct like lying in wait or following a victim, breaking into a place where you intend to commit the crime, or possessing tools or materials with no legitimate use as the kind of corroborating action that can qualify. The list is illustrative, not exhaustive.
How Attempt Is Punished
Under the Model Penal Code, attempt is generally graded the same as the completed offense. The exception runs at the top of the scale: attempting a capital crime or a first-degree felony drops one step, to a second-degree felony.4University of Pennsylvania Carey Law School. Model Penal Code – Section 5.05 States grade attempt their own ways, and federal law handles it offense by offense. Attempted murder within federal jurisdiction carries up to 20 years, against a potential life sentence for completed murder.5Office of the Law Revision Counsel. 18 USC 1113 – Attempt to Commit Murder or Manslaughter Federal fraud attempts carry the same maximum as the completed offense.
Conspiracy: The Agreement Itself
You do not have to personally try the crime to be charged. If you agree with someone else to commit an offense, you have committed conspiracy, and the agreement itself is treated as a distinct crime.
Under federal law, conspiracy requires an agreement between two or more people to commit an offense against the United States, plus at least one “overt act” by any member of the group to advance the plan.6Office of the Law Revision Counsel. 18 USC 371 – Conspiracy to Commit Offense or to Defraud United States The overt act does not have to be illegal. Opening a bank account, renting a car, or making a phone call can satisfy the requirement if it was done to move the plan forward. Some federal conspiracies do not even require that much. The Supreme Court has held that drug conspiracy charges under federal law need only the agreement itself.7Legal Information Institute. United States v Shabani
The general federal conspiracy statute caps punishment at five years and a fine. If the target offense is only a misdemeanor, the conspiracy penalty cannot exceed what the misdemeanor itself would carry.6Office of the Law Revision Counsel. 18 USC 371 – Conspiracy to Commit Offense or to Defraud United States Specific federal offenses sometimes set their own penalties, and state law varies in how conspiracy is graded against the underlying crime.
Why Joining a Conspiracy Is Especially Risky
Under the Pinkerton rule, every member of a conspiracy can be held responsible for crimes committed by other members, even crimes the defendant did not personally participate in or know about, as long as those crimes were committed in furtherance of the conspiracy and were reasonably foreseeable consequences of the agreement.8Legal Information Institute. Pinkerton v United States Joining a criminal agreement means effectively vouching for every foreseeable act your co-conspirators take.
Solicitation: Asking Someone Else to Do It
You commit solicitation when you ask, encourage, or command another person to commit a crime, provided you genuinely intend for them to do it. The offense is complete the moment you make the request. It does not matter whether the other person agrees, refuses, laughs it off, or calls the police. Offering someone money to vandalize a competitor’s business is solicitation as soon as the words leave your mouth, assuming you meant it seriously.
Under the Model Penal Code, even an uncommunicated solicitation counts. If you write a letter asking someone to commit a crime and it never reaches them, you have still committed solicitation because your conduct was designed to make that communication.
Federal law specifically criminalizes soliciting a violent felony. The maximum penalty is half the prison time and half the fine the underlying crime would carry. If the solicited crime is punishable by life in prison or death, solicitation itself carries up to 20 years.9Office of the Law Revision Counsel. 18 USC 373 – Solicitation to Commit a Crime of Violence
When Expressing Intent Is the Crime
The First Amendment protects a wide range of speech, including angry rhetoric, political hyperbole, and offensive statements. It does not protect “true threats,” which the Supreme Court defines as serious expressions conveying that the speaker intends to commit an act of unlawful violence against a particular person or group. The word “true” separates genuine threats from jokes, sarcasm, and venting, which remain protected even when they make people uncomfortable.10Constitution Annotated. True Threats
In 2023, the Supreme Court clarified the mental state the government must prove. In Counterman v. Colorado, the Court held that the prosecution has to show the speaker acted at least recklessly, meaning they consciously disregarded a substantial risk that their communications would be understood as threatening violence.11Supreme Court of the United States. Counterman v Colorado A purely negligent or accidental statement that happens to frighten someone is not enough.
If you tell someone you intend to hurt them and you are aware your words would reasonably be taken as a genuine threat, you can be prosecuted regardless of whether you ever take a step toward following through. In this corner of the law, expressing the intent is the offense.
Backing Out, and Crimes That Can’t Be Completed
The law does leave some room for people who change their minds or whose plans turn out to be impossible, but less than most people assume.
Voluntary Abandonment
If you have already taken a substantial step toward committing a crime but then genuinely abandon the plan, you may have a defense. Under the Model Penal Code, the renunciation has to be both complete and voluntary. It does not count if you backed off because you spotted a security camera, noticed police nearby, or decided to wait for a better opportunity. It also does not count if you simply switched to a different target or a different crime. The change of heart has to be real and self-motivated.12Tanaka Criminal Law Casebook. Model Penal Code MPC 5.01 Criminal Attempt – Section 5.01(4)
For solicitation, the bar is higher. You cannot simply decide not to follow up. You have to actually persuade the person you solicited to abandon the plan or take other steps to prevent the crime.
Impossibility
Factual impossibility is not a defense. If you reach into a pocket to steal a wallet and the pocket is empty, you are still guilty of attempted theft. If you shoot through a bedroom window at someone who happens to be sleeping elsewhere that night, you are still guilty of attempted murder. Your intent and conduct were fully criminal; luck was not with you.13Legal Information Institute. Impossibility
Legal impossibility is a defense in most jurisdictions. It applies when you believe your conduct is criminal but it actually is not. If you try to import a substance you think is illegal but it turns out to be lawful, you have not committed a crime, because the act you completed was not prohibited.
One Charge or Two?
If you attempt a crime and succeed, you are not charged with both the attempt and the completed offense. Your attempt merges into the finished crime. The same is true of solicitation: if the crime you asked for actually happens, the solicitation charge folds into the substantive offense.
Conspiracy is the exception, and it is a large one. A conspiracy charge does not merge into the completed crime, which means you can be convicted of both the conspiracy and the offense you conspired to commit. Prosecutors use this routinely. If you and a partner plan a robbery, carry it out, and get caught, you face both the robbery and a separate conspiracy charge. A partner who drove the getaway car faces the same conspiracy charge and, under the Pinkerton rule, potentially the robbery charge as well, even without setting foot inside the building.8Legal Information Institute. Pinkerton v United States