How Long After a Car Accident Can I Claim Injury?

In New York, you generally have three years from the date of the crash to sue for a personal injury, but that is the last deadline, not the first. A written no-fault application is due within thirty days, medical bills within forty-five days, and where a public vehicle was involved a notice of claim is due within ninety days. Waiting to report an injury also weakens the claim medically long before any of those deadlines expire.

Kelner & Kelner has represented seriously injured New Yorkers for decades, and our New York car accident attorneys handle collision cases across the five boroughs and the surrounding counties. Robert S. Kelner and the trial lawyers who work with him regularly hear from people weeks after a crash who assumed the only clock that mattered was the three-year one. This article expands on our New York car accident practice.

How Long After a Car Accident Can You Claim Injury in New York?

There is no single answer, because a New York car accident produces several separate claims with separate deadlines running at the same time. Missing the short ones does not end the lawsuit, but it can cost you the benefits that pay for your treatment while the lawsuit is pending.

• Thirty days: written notice to the no-fault insurer, which pays your medical treatment and part of your lost wages.
• Forty-five days: submission of each medical bill to the no-fault carrier.
• Ten days: the written accident report to the Department of Motor Vehicles where anyone was injured or property damage exceeds one thousand dollars.
• Ninety days: a notice of claim under General Municipal Law Section 50-e where a City vehicle, a transit or MTA bus, or another public vehicle was involved.
• Promptly, as the policy requires: notice to your own carrier for uninsured or underinsured motorist coverage.
• Three years: the personal injury lawsuit against a private driver under CPLR 214.
• Two years: a wrongful death claim under EPTL 5-4.1, measured from the date of death rather than the date of the crash.

The 30-Day No-Fault Deadline: The One Most People Miss

New York's no-fault system requires written notice of the accident to the appropriate insurer within thirty days. That insurer is usually your own, even when the other driver caused the collision. Miss it and the carrier can deny the claim, leaving you responsible for treatment that should have been covered.

This is where the timing problem starts for most people. Someone walks away from a collision feeling shaken but functional, decides to see how they feel, and by the time the neck pain becomes real, three or four weeks have gone by. Nobody told them a form was due, because nobody at the scene has that job.

Late notice is not always fatal. New York's regulations require the thirty-day requirement to be excused where the claimant submits written proof of clear and reasonable justification for the delay, and insurers are expected to evaluate that justification rather than deny automatically. But relying on that provision means arguing for coverage instead of receiving it, and the justification has to be genuine and documented.

The 45-Day Rule for Medical Bills

Each medical bill generally must reach the no-fault carrier within forty-five days of the treatment. This deadline runs on providers rather than on you, which is exactly why it gets missed.

Providers who see no-fault patients regularly handle this correctly. Providers who do not, including many primary care offices and out-of-network specialists, bill health insurance or bill the patient directly, and the no-fault claim number never reaches the billing department. Months later a collection notice arrives. Tell every provider at the first visit that this is a motor vehicle accident, give them the no-fault claim number and adjuster information, and confirm the bills are going to the right place.

The Three-Year Deadline to Sue for Your Injury

Under CPLR 214, a personal injury action arising from a car accident against a private driver must generally be commenced within three years of the date of the accident. That is the outside boundary, and it is measured from the crash rather than from when you realized you were hurt.

Three years sounds generous, and it produces a predictable pattern. People wait, treatment records go cold, witnesses become unreachable, vehicles are repaired or scrapped, camera footage overwrites, and the case that could have been proven in month two becomes a swearing contest in year three. The statute defines when a claim dies, not when it is best brought.

A property damage claim carries its own three-year period, and it is separate from the injury claim. Resolving the vehicle damage does not resolve the injury claim, provided you settled it on a property damage release rather than a general one.

When Is the Deadline Shorter Than Three Years?

Whenever a public entity is on the other side, and whenever someone died. These are the two situations where a family that waits loses the case entirely.

• Public vehicles: a notice of claim within ninety days under General Municipal Law Section 50-e where the other vehicle belonged to the City, a school district, a transit or MTA entity, or another public body. The period to commence suit is far shorter than three years and varies by entity, so it should be confirmed for the specific defendant.
• General Municipal Law 50-h: the entity may demand a hearing at which you are examined under oath before suit is filed, and failing to appear can bar the action.
• Wrongful death: two years from the date of death under EPTL 5-4.1, with the notice of claim requirement still applying against a public defendant.
• Uninsured and underinsured motorist claims: governed by the policy rather than by the statute, requiring notice as soon as practicable and, critically, the carrier's written consent before you settle with the at-fault driver.
• Government-owned commercial and contractor vehicles: which frequently involve both a public entity and a private company, each with different deadlines.

What If Your Injury Did Not Appear Until Weeks Later?

Delayed symptoms are medically ordinary and legally awkward. Adrenaline masks pain for hours to days, and several serious injuries genuinely take time to declare themselves. The law does not penalize you for that, but the insurance company will argue about it.

Injuries that commonly surface late include disc herniations that begin as stiffness and progress to radiating pain and numbness, concussions whose headaches, light sensitivity, sleep disruption, and memory complaints build over days, rotator cuff and labral tears that present as soreness before the range of motion collapses, internal bleeding, and knee and wrist injuries from bracing at impact. In older adults, a subdural bleed can develop quietly over weeks.

The right response is medical, not legal. Go be evaluated as soon as something appears, tell the provider the symptoms began after a specific collision on a specific date, and make sure that connection is written into the chart. A record that ties the complaint to the crash from the first visit is worth far more than any later explanation.

Does Discovering an Injury Later Restart the Clock?

Generally no. New York does not apply a discovery rule to ordinary negligence claims from a car accident. The three-year period runs from the date of the collision even if the injury was not diagnosed until months afterward.

There are narrow exceptions elsewhere in the law. CPLR 214-c provides a discovery rule for injuries caused by exposure to a harmful substance, which does not apply to a typical collision. For a child, CPLR 208 tolls the limitations period during infancy, so a minor injured in a crash generally has until three years after turning eighteen, though that toll does not by itself excuse a missed notice of claim against a public entity. Limited tolls also exist for certain disabilities and in narrow circumstances involving a defendant's absence from the state.

Within a case already filed, a newly diagnosed injury is a different matter. Conditions that emerge or worsen during litigation can generally be added through a supplemental bill of particulars and further medical proof, provided the case was commenced in time. That is another reason not to settle while treatment is still ongoing.

Can the Deadline Ever Be Extended?

Sometimes, through specific statutory mechanisms rather than through a good excuse. Each has its own requirements, and none of them are dependable enough to plan around.

• CPLR 208: tolling during infancy or a qualifying disability, subject to statutory limits.
• General Municipal Law 50-e(5): a court may permit late service of a notice of claim, weighing whether the public entity acquired actual knowledge of the essential facts within ninety days or a reasonable time after, the reason for the delay, and whether the delay prejudiced the entity's ability to defend. The application must be made within the period for commencing the action, and the relief is discretionary and frequently denied.
• No-fault late notice: excused where written proof of clear and reasonable justification is submitted, as the regulations require.
• CPLR 205(a): in limited circumstances, a new action may be recommenced within six months after a prior timely action is terminated other than on the merits.

What Happens If You Report an Injury Late?

Assuming you are still inside the legal deadlines, the claim survives but arrives with a built-in argument against it. Every gap in the timeline becomes a defense exhibit.

The insurer will point to the ambulance refusal, the emergency department note recording no complaints, the two weeks before the first treatment, and any activity in that period that looks inconsistent with injury. The response is medical documentation: a clear history in the first record connecting the symptoms to the crash, imaging showing objective findings, and consistent treatment afterward. Sparse or interrupted treatment is what defeats these claims, more than the initial delay.

What is not recoverable is the evidence lost while waiting. Camera footage from the intersection, the businesses, and the vehicles, along with witness recollection and the vehicles themselves, are all gone within weeks. That evidence is frequently what establishes fault, and under New York's current rules fault matters more than it used to.

Why Waiting Costs More Than It Used To

New York enacted motor vehicle tort reform effective in May 2026 that eliminated the 90/180 category from the serious injury threshold in Insurance Law Section 5102(d) and, under the amendment to CPLR 1411, bars recovery in motor vehicle cases where the plaintiff's share of fault exceeds fifty percent.

Both changes reward early action. The threshold now turns on categories built around permanence, fractures, disfigurement, and quantified limitation of use, which are established by imaging, measured range of motion, and consistent treatment rather than by a description of disrupted daily activities. That evidence has to be created while you are treating. The comparative fault change means a disputed liability question can now end a claim outright rather than reduce it, which puts a premium on scene evidence collected in the first days. Because the law is recent, its application to a specific accident and filing date should be confirmed rather than assumed.

How Do Our New York Car Accident Attorneys Handle These Cases?

The first thing we do on any call is map the deadlines for your specific accident, because that determines what has to happen this week.

• Deadline audit: identifying every applicable period, including whether a public entity is involved and a ninety-day clock is already running.
• No-fault filing and repair: the application submitted, late notice justified in writing where the thirty days has passed, and bills redirected to the correct carrier.
• Evidence preservation: written demands for camera footage, vehicle event data, and records before they cycle.
• Coverage investigation: the at-fault driver's limits, commercial and umbrella layers, and your own uninsured and underinsured coverage with its consent requirements.
• Medical documentation: coordinating with treating physicians so imaging, measured limitation, and permanence findings are in the record while treatment is active.
• Late-claim applications: seeking leave to serve a late notice of claim where the facts support it.
• Suit and discovery: filing well inside the period, then pleadings, depositions, and defense of the medical examination.
• Resolution: settlement on a number that reflects the loss, and trial when the offer does not.

Why Choose Kelner & Kelner for Your New York Car Accident Case?

Kelner & Kelner is a New York City trial firm that has handled catastrophic injury and wrongful death litigation for generations of families, in the Supreme Court in the five boroughs and the surrounding counties, in the federal courts, and on appeal.

Our attorneys have written and lectured on New York trial practice for the state and city bar associations, and appear regularly in the courts where motor vehicle cases are decided. Where a collision produces a permanent injury, the case overlaps with our New York catastrophic injury practice. Cases are handled on a contingency fee, which means no legal fee unless there is a recovery. Consultations are free and confidential.

Talk to a New York Car Accident Attorney

If it has been days, there is still time to do this right. If it has been months, there may still be time, and finding out costs nothing. Let our New York car accident attorneys map the deadlines on your accident and tell you honestly what we see.