How much time do you get for felony assault depends on how badly the victim was hurt, whether a weapon was involved, who the victim was, and the defendant’s prior record. Sentences range from about one year to life in prison. Bureau of Justice Statistics data puts the average state prison sentence for assault at 5.6 years, with average time actually served before first release closer to 2.5 years.1Bureau of Justice Statistics. Time Served in State Prison, 2016 Most felony assaults are prosecuted under state law, where penalty structures vary, but the federal framework shows how courts grade and punish these charges.
When Assault Becomes a Felony
Not every assault is a felony. The dividing line usually turns on how much harm the victim suffered and what the attacker intended. A shove during an argument that leaves no lasting injury is typically a misdemeanor. An attack that breaks bones, causes internal bleeding, or leaves permanent scars is almost always charged as a felony. Using a weapon during the assault, even an improvised one, pushes the charge into felony territory in nearly every jurisdiction.
One point confuses many people: most states now use the word “assault” to cover what were historically two separate offenses. Traditionally, “assault” meant causing someone to fear imminent harm, while “battery” meant actual physical contact. Today, most state statutes fold both concepts into “assault,” so the charge can cover anything from a credible threat to a brutal beating. The degree or class of the charge reflects where on that spectrum the conduct falls.
Federal Sentencing Tiers for Assault
The federal assault statute applies only in limited situations, mainly on federal property or against federal employees, but its tiers show how the law scales punishment to the seriousness of the conduct:
- Simple assault: up to six months, or up to one year if the victim is under 16.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Assault by striking, beating, or wounding: up to one year.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Assault resulting in substantial bodily injury to a spouse, partner, or child under 16: up to five years.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Assault with a dangerous weapon or resulting in serious bodily injury: up to ten years.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Strangulation or suffocation of a spouse, partner, or dating partner: up to ten years.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Assault with intent to commit murder: up to twenty years.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
State penalties don’t mirror these numbers exactly, but the pattern holds everywhere: the more serious the injury or the more dangerous the weapon, the longer the potential sentence. Some states set maximums well above federal levels for the most serious offenses.
How Felony Classes Set the Range
Both the federal government and most states sort felonies into classes or degrees, each carrying a defined sentencing range. The federal classification assigns letter grades based on the maximum authorized prison term:
- Class A felony: life imprisonment or death.3Office of the Law Revision Counsel. 18 USC 3559 – Sentencing Classification of Offenses
- Class B felony: 25 years or more.3Office of the Law Revision Counsel. 18 USC 3559 – Sentencing Classification of Offenses
- Class C felony: 10 years up to less than 25 years.3Office of the Law Revision Counsel. 18 USC 3559 – Sentencing Classification of Offenses
- Class D felony: 5 years up to less than 10 years.3Office of the Law Revision Counsel. 18 USC 3559 – Sentencing Classification of Offenses
- Class E felony: more than 1 year up to less than 5 years.3Office of the Law Revision Counsel. 18 USC 3559 – Sentencing Classification of Offenses
State systems use their own labels. Some states use numbered degrees (first, second, third), others use letter classes, and the ranges attached to each label differ from state to state. A “Class C felony” in one state might carry two to ten years, while the same label under federal law means ten to twenty-five. Always check the specific jurisdiction’s sentencing chart rather than assuming labels are interchangeable.
What Pushes a Sentence Up
Judges don’t pick numbers out of thin air. Federal law requires a court to weigh the nature of the offense, the defendant’s history, the need for deterrence, and the goal of protecting the public, among other considerations.4Office of the Law Revision Counsel. 18 US Code 3553 – Imposition of a Sentence Within the statutory range for a given charge, a few aggravating facts reliably move a sentence toward the high end.
Use of a Weapon
A weapon is the single most reliable way to turn a moderate assault charge into a severe one. Under federal law, assault with a dangerous weapon carries up to ten years, compared to one year for a simple striking or beating.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction The object doesn’t need to be a gun or a knife. Courts have treated baseball bats, hammers, broken bottles, vehicles, and metal pipes as dangerous weapons when used to injure someone. The question is whether the object was used in a way that could cause serious injury or death, not whether it was designed as a weapon.
Severity of the Injuries
The worse the injury, the longer the sentence. Federal law draws a clear line: assault resulting in “serious bodily injury” carries up to ten years, while a lesser physical assault tops out at one year.2Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction Injuries that qualify as serious typically include broken bones, deep lacerations requiring stitches, loss of an organ or limb, and permanent disfigurement. Temporary bruising and soreness usually don’t cross the threshold.
Who the Victim Was
Attacking certain categories of people triggers enhanced penalties. Assaulting a federal officer or employee during official duties can mean up to eight years for physical contact alone, and up to twenty years if a dangerous weapon is used or bodily injury occurs.5Office of the Law Revision Counsel. 18 US Code 111 – Assaulting, Resisting, or Impeding Certain Officers or Employees Most states have similar provisions for assaults on police officers, firefighters, paramedics, and corrections officers. Crimes against children and elderly victims also carry enhanced penalties in most jurisdictions.
Prior Record
Criminal history is one of the most powerful sentencing factors. Someone with prior violent offenses will almost always receive a longer sentence than a first-time offender facing the same charge. At the extreme end, the federal three-strikes provision mandates life imprisonment for anyone convicted of a “serious violent felony” who has two or more prior convictions for serious violent felonies or serious drug offenses. Assault with intent to commit murder qualifies as a serious violent felony under that statute, as does any offense punishable by ten or more years that involves physical force.3Office of the Law Revision Counsel. 18 USC 3559 – Sentencing Classification of Offenses Many states have their own habitual offender laws with similar effects.
What Can Bring a Sentence Down
Mitigating circumstances give a judge reasons to stay at the lower end of the range. Federal law specifically lists several, including impaired mental capacity, duress, minor participation in the offense, and no prior criminal record.4Office of the Law Revision Counsel. 18 US Code 3553 – Imposition of a Sentence
A clean record matters more than most people realize. A first offense signals that the incident may be an aberration rather than a pattern. Defendants with no prior convictions are far more likely to receive sentences at the bottom of the statutory range or to qualify for probation-heavy alternatives.
The defendant’s role in the incident also matters. Someone who participated in a group assault but played a minor part, or who acted under pressure from others, has a credible argument for reduced culpability. If the victim initiated the confrontation or provoked the defendant, a judge may impose a lighter sentence, though provocation is never a complete defense to the charge.
Behavior after the arrest counts too. Accepting responsibility, cooperating with investigators, and entering a guilty plea early all signal to the court that the defendant takes the situation seriously. In federal cases, the sentencing guidelines provide a specific reduction for acceptance of responsibility, which can shave meaningful time off a sentence.
Why the Sentence Imposed Rarely Equals Time Served
The number a judge pronounces in court is almost never the amount of time a person actually spends behind bars. People sentenced for assault in state prison serve an average of about 2.5 years on a 5.6-year average sentence, roughly 45 percent of the imposed term before first release.1Bureau of Justice Statistics. Time Served in State Prison, 2016
Good-time credit is the main mechanism. In the federal system, prisoners serving more than one year can earn up to 54 days of credit per year for following institutional rules and making progress toward educational goals.6Office of the Law Revision Counsel. 18 USC 3624 – Release of a Prisoner The practical effect is that most federal inmates serve at least 85 percent of their sentence. State systems vary widely. Some offer day-for-day good-time credit, meaning an inmate can cut the sentence nearly in half through good behavior; others are far more restrictive.
Parole is the other major factor. Many states allow parole boards to release inmates before their sentence expires, typically after they’ve served a minimum portion of the term. Federal sentences imposed after 1987 don’t include parole, but most state systems still use some form of discretionary early release.
Plea Deals Shape Most Outcomes
The ranges above apply to convictions at each charge level, but the charge a defendant is ultimately sentenced on is often not the original charge. Roughly 90 to 95 percent of criminal cases in both federal and state courts resolve through plea bargaining rather than trial.7Bureau of Justice Assistance. Plea and Charge Bargaining Research Summary That reality dominates felony assault sentencing in practice.
In a typical deal, the prosecution agrees to reduce the charge, recommend a lighter sentence, or drop additional counts in exchange for the defendant’s guilty plea. Someone initially charged with assault with a dangerous weapon might plead guilty to a lesser assault charge carrying a significantly shorter maximum. Most people convicted of felony assault serve substantially less time than the statutory maximum for the original charge would suggest. Rejecting a plea and losing at trial often results in a sentence at or near the statutory maximum, while accepting a reasonable plea deal locks in a known outcome.
Penalties That Come With the Prison Sentence
A felony assault conviction carries consequences that reach well beyond the prison term itself.
Federal law requires judges to order restitution in cases involving crimes of violence. Under the Mandatory Victims Restitution Act, the court must order the defendant to pay for the victim’s medical and rehabilitation costs, lost income, and property damage resulting from the offense. The order covers physical, psychiatric, and psychological care, occupational therapy, and reimbursement for income lost during the investigation and prosecution.8Office of the Law Revision Counsel. 18 US Code 3663A – Mandatory Restitution to Victims of Certain Crimes These amounts can be large when the victim suffered serious injuries, and the obligation follows the defendant after release.
Courts commonly impose fines that range from a few hundred dollars to tens of thousands. A period of supervised release or probation after incarceration is standard, with conditions like regular check-ins with a probation officer, drug testing, and restrictions on travel and association. Violating those conditions can send a person back to prison. Courts may also mandate anger management, substance abuse treatment, or mental health counseling.
A criminal conviction doesn’t prevent the victim from filing a separate civil lawsuit for medical expenses, lost wages, pain and suffering, and property damage. The burden of proof in civil court is lower, and a criminal conviction for the same conduct makes the civil case much easier for the victim to win.
One more consequence attaches automatically to every felony assault conviction: federal law prohibits anyone convicted of a crime punishable by more than one year in prison from possessing, shipping, transporting, or receiving any firearm or ammunition.9Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts The ban applies regardless of whether the original offense involved a firearm, and it lasts for life unless the conviction is expunged or the person receives a pardon restoring firearm rights.