New York does not have a Stand Your Ground law. Before you can use deadly force to defend yourself, the state expects you to retreat if you know you can do so with complete personal safety. The one meaningful exception is inside your own home, where no retreat is required as long as you didn’t start the fight. Everything else about self-defense in New York, from what counts as “reasonable” to who has to prove what in court, flows from that basic rule.
The Duty to Retreat Outside Your Home
Under Penal Law § 35.15, you cannot use deadly physical force against another person if you know you can avoid the need to do so by retreating with “complete personal safety” for yourself and others.1New York State Senate. New York Penal Law 35.15 – Justification; Use of Physical Force in Defense of a Person Stand Your Ground states let you hold your position anywhere you are lawfully present. New York goes the other way.
In practice, if someone threatens you on the street and you have a clear path to walk away, drive off, or otherwise remove yourself, the law expects you to take it. Staying to fight when escape was available can sink a self-defense claim. A prosecutor will argue the force wasn’t necessary because you could have left.
The duty is not unlimited. You don’t have to do anything dangerous or heroic to escape. If retreating would itself put you or someone else at risk, the obligation falls away. And the retreat rule applies only to deadly force. For ordinary physical force, there is no duty to retreat at all.
The Castle Doctrine: No Retreat Inside Your Dwelling
The retreat requirement disappears when you are inside your own dwelling and you were not the initial aggressor. New York’s Castle Doctrine, built into § 35.15(2)(a), lets you use deadly force against an intruder in your home without first looking for an exit.1New York State Senate. New York Penal Law 35.15 – Justification; Use of Physical Force in Defense of a Person You still have to reasonably believe the intruder is using or about to use deadly force, but you don’t have to try to flee your own bedroom first.
“Dwelling” has a specific meaning. Under Penal Law § 140.00, a dwelling is a building usually occupied by a person for overnight lodging.2New York State Senate. New York Penal Law 140.00 – Criminal Trespass and Burglary; Definitions of Terms A house or apartment qualifies. A vehicle or watercraft can count if it’s used for overnight lodging, so an RV you sleep in regularly could qualify, but your commuter car almost certainly does not.
There is a related rule for burglary specifically. Under Penal Law § 35.20, a person inside their dwelling or an occupied building who reasonably believes someone is committing or attempting a burglary may use deadly force when they reasonably believe it necessary to stop the burglary.3New York State Senate. New York Penal Law 35.20 – Justification; Use of Physical Force in Defense of Premises and in Defense of a Person in the Course of Burglary
Where the Castle Doctrine Does Not Reach
The home exception is narrower than many people assume. It does not cover your car during a road-rage incident, your front yard, your workplace, or a friend’s house. The standard duty to retreat applies in all of those places. In a shared building, the protection extends to your locked apartment but not to the hallway, lobby, or stairwell outside it. New York’s approach here is more restrictive than states that extend Castle Doctrine protections to vehicles and workplaces.
When You Can Use Non-Deadly Force
Section 35.15(1) permits ordinary physical force when you reasonably believe it is necessary to defend yourself or someone else against what you reasonably believe is an imminent use of unlawful physical force.1New York State Senate. New York Penal Law 35.15 – Justification; Use of Physical Force in Defense of a Person No retreat is required first.
The force has to be proportional. The statute allows force only “to the extent” reasonably believed necessary, so your response has to roughly match the threat. Shoving someone away who gets in your face is one thing; breaking their jaw is another. Pulling a weapon in response to a shove would likely read as a disproportionate escalation.
When Deadly Force Is Justified
Deadly force is permitted in only two situations.
The first is when you reasonably believe the other person is using or about to use deadly physical force against you, and you cannot safely retreat (or you’re in your dwelling and did not start the fight).
The second is when you reasonably believe the other person is committing or attempting one of these specific felonies:
- Kidnapping
- Forcible rape
- Forcible aggravated sexual abuse
- Robbery
- Burglary (with deadly force authorized through § 35.20 for defense of premises)
The list in the statute is exhaustive. If the crime you’re witnessing isn’t on it, deadly force is not justified under this provision no matter how serious the situation feels.1New York State Senate. New York Penal Law 35.15 – Justification; Use of Physical Force in Defense of a Person Arson is not on the list, which surprises many people who assume every violent felony qualifies.
If You Started the Fight
You generally cannot claim self-defense if you were the initial aggressor. Section 35.15(1)(b) bars justification in that situation, and the Castle Doctrine’s no-retreat exception likewise applies only when you are “not the initial aggressor.”1New York State Senate. New York Penal Law 35.15 – Justification; Use of Physical Force in Defense of a Person
There is one way back. You can recover the right to self-defense by genuinely withdrawing from the encounter and clearly communicating that withdrawal to the other person. If you back away, say you’re done, and the other person keeps coming at you with force, the law again permits you to defend yourself. The withdrawal has to be real and obvious. Simply pausing or stepping back probably isn’t enough; the other person needs to understand you’re trying to disengage.
Two other situations also strip away a self-defense claim: provoking the confrontation with the specific intent to injure, and participating in a mutually agreed-upon fight (what the statute calls “combat by agreement”).
How Courts Judge “Reasonable Belief”
The phrase “reasonably believes” carries most of the weight in a self-defense case. The Court of Appeals established a two-part test in People v. Goetz. First, you must have actually and honestly believed force was necessary. Second, a reasonable person in the same situation, knowing what you knew, would have held the same belief.4NYCourts.gov. People v Goetz
Both prongs have to be satisfied. An honest belief that turns out to be wildly unreasonable will not protect you. New York’s standard jury instructions put it this way: “an honest belief, no matter how genuine or sincere, may yet be unreasonable.”5NYCourts.gov. Justification: Use of Deadly Physical Force in Defense of a Person Penal Law 35.15(2)
The circumstances the reasonable person is assumed to consider include the physical environment, time of day, prior interactions with the other person, and the defendant’s own relevant knowledge and experience. Self-defense cases often turn on this prong: the facts that made you feel threatened must be facts that would make most people feel the same way.
Who Has to Prove Self-Defense
In New York, justification is not an affirmative defense. It is an ordinary defense, and that distinction matters. Under Penal Law § 25.00, once you raise justification at trial, the prosecution has to disprove it beyond a reasonable doubt.6New York State Senate. New York Penal Law 25.00 – Defenses; Burden of Proof
You only need to put enough evidence on the record to raise the issue. From there, the prosecutor must convince the jury beyond a reasonable doubt that your use of force was not justified. The Court of Appeals confirmed this framework in People v. Hernandez, holding that where deadly force is at issue, the prosecution must prove the defendant knew safe retreat was possible.7Law.Cornell.Edu. People v. Hernandez, 2002 NY Int. 75 – Penal Law 35.15(2) Justification Defense Duty to Retreat
What Happens If the Claim Fails
If a court decides your use of force was not justified, you face the same criminal exposure as if you had attacked someone unprovoked. Non-deadly force that fails the justification test typically becomes an assault charge; unjustified deadly force can mean manslaughter or murder depending on the circumstances and your state of mind. Even a genuine belief that you were in danger will not save you if the objective prong of the Goetz test is not met.
New York also does not grant the kind of blanket civil immunity for justified force that some Stand Your Ground states provide. A person whose criminal self-defense claim succeeds can still be sued civilly by the injured party or their family, although a criminal acquittal on justification grounds would be strong evidence in that proceeding.