In most states, you have between one and three years to sue someone for assault, measured from the date the assault happened. A handful of states allow longer, and roughly a dozen give you only one year. Because each state sets its own statute of limitations and the deadline is unforgiving, identifying the exact window that applies to your case is the first thing to pin down after seeking medical care.
How the Deadline Varies by State
There is no federal statute of limitations for a civil assault claim between private individuals. Each state legislature sets its own deadline. About a dozen states give you just one year from the date of the assault, which puts assault among the strictest deadlines in personal injury law. A larger group of states set the deadline at two years, and several others allow three years or more.
The deadline that governs your case is determined by where the assault happened, not where you live or where the person who attacked you lives. If you were assaulted while traveling, the law of that state controls. These deadlines are set by statute and leave no room for negotiation, so checking the specific rule in the relevant state is something to do early, not after you have finished treatment or waited to see how injuries develop.
Assault and Battery May Be Tracked Separately
In civil law, many states draw a line between assault and battery. Assault typically means causing someone to fear imminent physical harm; battery involves actual unwanted physical contact. You can have assault without battery, or battery without assault. Most states apply the same filing deadline to both, but some categorize them differently or fold battery into a broader personal injury category with a longer window. If you were physically struck, you likely have both claims, and it is worth confirming that the deadline you are tracking covers both.
When the Clock Starts Running
The statute of limitations usually starts on the date of the assault itself. If someone attacks you on March 1 and your state has a two-year deadline, you generally have until March 1 two years later to file. That straightforward rule covers most cases.
An exception called the discovery rule can shift the start date when the injury was not immediately obvious. The clock does not begin until you knew, or reasonably should have known, that you were injured and that the injury was connected to the assault. Courts applying the rule look at whether you knew you were injured, whether you knew who caused it, and whether you understood the connection between the two.
This comes up most often with internal injuries or psychological conditions like PTSD that are not diagnosed until well after the attack. If a head injury causes cognitive problems that go unidentified for months, the clock may start on the date of diagnosis rather than the date of the assault. The rule has limits, though. Courts expect reasonable diligence. If symptoms were present and you simply did not seek medical attention, a judge may find that you should have discovered the injury sooner.
Situations That Pause the Clock
Even after the limitations period begins, certain circumstances can pause the countdown. Lawyers call this pause “tolling,” and it effectively extends your total filing window by the length of the pause.
The Victim Is a Minor
If the person assaulted is under 18, most states pause the statute of limitations until they turn 18. The filing deadline then begins running on their 18th birthday. A child assaulted at age 10 in a state with a two-year period would generally have until age 20 to sue. Some states impose an outer cap that can shorten this window for very young children, so the math is not always as simple as “18 plus the limitations period.”
Mental Incapacity
If the assault left you in a coma or caused a brain injury that made you unable to manage your legal affairs, the clock may be paused until you regain capacity. The same principle can apply if you were already incapacitated at the time of the assault. Once capacity returns, the limitations period begins or resumes.
The Defendant Leaves or Hides
If the person who assaulted you flees the state or actively conceals their identity or location to avoid being served, many states will pause the limitations period for the duration of their absence. The clock resumes once they return or can be located. This prevents an attacker from running out the clock by disappearing.
Much Shorter Deadlines for Government Defendants
If the person who assaulted you is a government employee acting in an official capacity, such as a police officer or a corrections officer, an entirely different and much shorter set of deadlines applies.
For claims against the federal government, you must first file an administrative claim with the relevant agency before you can sue in court. That administrative claim must be submitted within two years of the assault. If the agency denies it, you then have six months to file a lawsuit.1Office of the Law Revision Counsel. 28 USC 2675 – Disposition by Federal Agency as Prerequisite; Evidence Skip the administrative step and the case gets thrown out regardless of its merits.
State and local government claims add another layer. Most states require you to file a formal notice of claim before suing a government entity, and the deadlines for this notice are often far shorter than the regular statute of limitations. These notice windows range from as little as 90 days to about a year after the assault, depending on the state and level of government. Missing the preliminary notice deadline typically bars the lawsuit itself, even if the regular statute of limitations has not expired.
Why a Pending Criminal Case Does Not Buy You More Time
A civil assault lawsuit is separate from any criminal prosecution, and one does not depend on the other. Criminal charges are brought by the government; a civil lawsuit is brought by you and seeks money damages. The two have different deadlines.
One common and dangerous assumption is that a pending criminal case somehow freezes the civil deadline. In most states, it does not. The statute of limitations for your civil claim keeps running while prosecutors handle the criminal side. Waiting for a criminal case to resolve before consulting a lawyer about a civil claim is one of the most common ways people lose the right to sue.
What Happens If You Miss the Deadline
Filing after the statute of limitations expires is almost always fatal to the case. The defendant will raise the expired deadline as a defense, the court will grant a motion to dismiss, and the claim is over permanently. It does not matter how strong your evidence is or how serious your injuries were.
The statute of limitations is what lawyers call an affirmative defense, which means the defendant has to actually raise it. If they fail to assert it in their initial response to your lawsuit, they can lose the right to use it entirely.2Legal Information Institute. Federal Rules of Civil Procedure Rule 8 – General Rules of Pleading This does not mean you should gamble on a defense lawyer making a mistake. It means the court will not automatically dismiss a late-filed case on its own; someone has to object. In practice, almost every defense attorney raises this defense immediately when it applies, so the deadline should be treated as absolute.