New York SUM Underinsured Motorist Claim Lawyer
When another driver causes a serious accident in New York City, you expect their insurance to cover your losses. What many injured people discover too late is that the at-fault driver carried the bare minimum in liability coverage, sometimes just enough to cover a fraction of their medical bills, lost wages, and ongoing care. That gap between what you are owed and what the other driver’s policy will pay is exactly what Supplementary Uninsured/Underinsured Motorist coverage is designed to fill. If you were seriously hurt in a crash and the other driver’s insurance fell short, a New York SUM underinsured motorist claim lawyer can help you access the coverage you may already be paying for without realizing it.
SUM claims in New York sit at an unusual intersection of personal injury law and insurance contract law. You are not suing the at-fault driver again. You are making a first-party claim against your own insurance company, the company you pay premiums to, the company that is supposed to be on your side. In practice, insurance carriers frequently handle these claims the same way they handle third-party liability claims: they look for reasons to minimize the payout. Understanding how these claims actually work, and where they tend to break down, is essential before you try to navigate one on your own.
New York’s SUM coverage rules have specific triggering requirements, notice deadlines, and arbitration procedures that do not apply to standard injury claims. A missed deadline or a mishandled notice to your own insurer can forfeit your right to recover. The value of having experienced counsel on a SUM claim is not just negotiating leverage. It is making sure the claim survives procedurally long enough to be paid.
How SUM Coverage Actually Works in New York Auto Policies
New York Insurance Law requires automobile insurers to offer SUM coverage, but it functions differently than most policyholders expect. SUM coverage pays when the at-fault driver either has no liability insurance at all (uninsured) or has liability coverage that is lower than the SUM limits on your own policy (underinsured). The coverage is triggered by the gap, not simply by the existence of a serious injury.
Here is where many people run into problems. If the at-fault driver has $25,000 in liability coverage and your SUM limit is also $25,000, there is no gap and no SUM recovery available. SUM only pays the difference when your SUM limit exceeds the at-fault driver’s liability limit. This means that drivers who carry higher SUM limits are better positioned when they encounter underinsured motorists, which is common in New York City given the sheer volume of minimally insured drivers, rideshare vehicles, commercial vehicles with complex coverage arrangements, and out-of-state drivers.
Before you can make a SUM claim, you must exhaust the at-fault driver’s liability coverage. That means accepting the full policy limits from the other driver’s insurer, which requires consent from your own SUM carrier. Your SUM insurer has the right to approve or reject the settlement with the at-fault driver, and failing to get that consent can void your SUM claim entirely. This step alone is one of the most frequently mishandled parts of the process, and it happens before a SUM claim is ever formally opened.
New York SUM disputes that cannot be resolved through negotiation go to arbitration, not to court. The arbitration process has its own rules, timelines, and evidentiary considerations. Cases that involve disputed liability, complex medical evidence, or significant damages require the same level of preparation as a trial, even if the venue is a hearing room rather than a courtroom.
Common SUM Claim Scenarios in New York City
- Rideshare and app-based vehicle accidents: Uber, Lyft, and delivery drivers operate under multiple overlapping coverage layers depending on their status at the time of the crash. When those layers do not adequately cover a serious injury, the injured passenger or third party may need to look to their own SUM policy.
- Hit-and-run accidents in NYC: A driver who flees the scene is treated as an uninsured motorist under New York law, triggering SUM coverage. These cases require prompt police reporting and specific documentation to preserve the claim.
- Low-limit commercial vehicle crashes: Some commercial operators, particularly small delivery companies and contract carriers, maintain only minimum required liability limits despite operating heavy vehicles in high-traffic areas like the BQE, the Cross Bronx Expressway, and Manhattan’s central business district.
- Multi-vehicle pileups with shared liability: When an accident involves multiple at-fault parties and the combined liability coverage is insufficient to fully compensate a catastrophic injury, SUM coverage from the victim’s own policy can help bridge the remaining gap.
- Out-of-state drivers with minimal coverage: Drivers from states with lower minimum liability requirements than New York who cause accidents in the city may carry coverage well below what a serious injury demands, making SUM claims essential.
- Pedestrians and cyclists with SUM coverage: In New York, SUM coverage is not limited to vehicle occupants. A pedestrian or cyclist who has their own auto policy may be able to make a SUM claim following a hit-and-run or an underinsured driver accident, depending on policy language.
- Accidents on NYC bridges and tunnels: Crashes on the Verrazano Bridge, the George Washington Bridge approach roads, and tunnel entrances often involve out-of-state vehicles or commercial traffic, creating situations where liability coverage may be inadequate for severe injuries.
What to Do After a Crash When You Suspect the Other Driver Was Underinsured
The most important early step in any SUM claim is also the most overlooked: notify your own insurance company promptly. New York insurance policies contain SUM notice requirements, and courts have held that late notice can bar a policyholder from recovering even when they were genuinely injured and entirely without fault. You do not need to know yet whether the other driver was underinsured. Notice to your own carrier should go out as soon as you are aware of a serious injury and as soon as there is reason to believe the at-fault driver’s coverage may be insufficient.
At the scene or as soon afterward as possible, gather as much information as you can about every vehicle and driver involved. Request an official police report through the NYPD, which handles accident reports for crashes within the five boroughs. The New York State Department of Motor Vehicles also maintains accident records accessible through the MV-104 form process. Insurance information, policy numbers, and carrier names from the at-fault driver are critical, as they will be used to determine whether the liability limits fall below your SUM threshold.
Your medical treatment creates the evidentiary foundation for the damages side of your SUM claim. Seek care immediately and follow through with every recommended treatment. Gaps in treatment are routinely used by insurance adjusters to suggest your injuries were not serious. Facilities like New York-Presbyterian, Bellevue Hospital, NYU Langone, and the major trauma centers across the boroughs are experienced with documenting accident injuries, and consistent documentation across those records will directly affect your claim’s value.
Do not give a recorded statement to any insurance adjuster, including your own SUM carrier, without legal counsel present. Even your own insurer is adverse to you in a SUM dispute. Their financial interest is in paying as little as possible. Statements made early in the claims process, before the full extent of injuries is known, are frequently used to limit recovery later. A New York SUM attorney can handle all communications with the carrier and make sure you do not inadvertently undercut your own claim.
One common mistake is settling the third-party liability claim without first consulting a SUM attorney. As noted above, your own SUM carrier must consent to any settlement with the at-fault driver before you accept those policy limits. Accepting a settlement without that consent, even for the full policy limits, can forfeit your SUM rights. This step cannot be undone after the fact.
Why Cohan Law Firm Handles New York SUM Claims Differently
SUM claims require a firm that understands insurance policy interpretation as well as personal injury litigation, because both are in play simultaneously. Cohan Law Firm has recovered over $100 million for accident victims across New York City, and that track record reflects experience handling the full range of motor vehicle cases, including the complex first-party coverage disputes that arise when at-fault drivers are underinsured or uninsured.
The attorneys at Cohan Law Firm come from large firm backgrounds and work alongside experienced support staff and medical professionals who help build the medical record that underinsured motorist claims require. Several of the firm’s attorneys are members of the Multi-Million Dollar Advocates Forum, a distinction reserved for trial lawyers who have achieved million-dollar-plus results. That level of litigation experience matters even in SUM arbitration, because carriers take different settlement positions when they know the opposing counsel is prepared to fully litigate a claim.
The firm has earned more than 550 five-star reviews, and the themes that run through those reviews consistently involve communication: clients describe being kept informed throughout the process, never left wondering what was happening with their case. In SUM claims, where the procedural steps and timeline can stretch across months of negotiation and arbitration preparation, that kind of consistent communication is not just a nicety. It directly affects how well-prepared a client is when key decisions need to be made. The firm also handles consultations and retainer agreements digitally, so getting started does not require a trip to an office while you are still recovering from your injuries.
Questions About SUM Underinsured Motorist Claims in New York
What is the difference between uninsured and underinsured motorist coverage in New York?
In New York, both situations fall under SUM (Supplementary Uninsured/Underinsured Motorist) coverage. Uninsured refers to a driver with no liability insurance at all, including hit-and-run drivers. Underinsured refers to a driver whose liability limits are lower than your own SUM limits. The legal framework and claims process are the same; the key distinction is what triggers the gap that SUM coverage is designed to fill.
Do I have to sue the at-fault driver before making a SUM claim?
No. In fact, you typically need to resolve the third-party liability claim first, accepting the at-fault driver’s policy limits with your SUM carrier’s consent, before the SUM claim can move forward. SUM is a separate claim made against your own insurer, not an extension of the lawsuit against the driver who caused the accident.
What are the notice deadlines for a SUM claim in New York?
New York insurance policies require prompt written notice to your own carrier following an accident where SUM coverage may be implicated. “Prompt” is not defined by a fixed statutory number of days and depends on the specific policy language, but courts have found that delays of even a few months can be problematic if no reasonable excuse exists. The safest approach is to notify your carrier in writing as soon as you know you have been seriously injured in a crash involving another driver.
Can I make a SUM claim if I was a passenger in someone else’s car?
Yes, potentially. As a seriously injured passenger, you may have a claim against the at-fault driver’s liability insurance, and if that coverage is insufficient, you may also have a SUM claim under the policy covering the vehicle you were riding in, under your own personal auto policy, or both. The order of priority among available SUM policies is governed by New York insurance regulations, and identifying every available source of coverage is one of the first things an attorney should do.
How is the SUM arbitration process different from going to court?
SUM disputes in New York are resolved through arbitration under the terms of the insurance policy, typically before a neutral arbitrator. The process has its own procedural rules, discovery limitations, and hearing format. While it differs from courtroom litigation, the arbitration is binding and the preparation required is substantial, particularly when large damages are involved. An attorney familiar with SUM arbitration in New York knows how to present medical evidence, handle the insurer’s experts, and maximize recovery in that specific forum.
What happens if my own insurance company denies my SUM claim?
A denial does not end your right to recover. Your insurer must provide the basis for any denial, and if that basis is legally unsound, the denial can be challenged through arbitration or, in some circumstances, through litigation. Insurance bad faith is a separate avenue of potential recovery when a carrier’s conduct in denying or delaying a valid claim crosses certain legal thresholds. An attorney can evaluate whether your carrier’s handling of your claim rises to that level.
Is there a statute of limitations on SUM claims in New York?
SUM claims are governed by the limitations period set in the insurance policy, which in New York is typically three years from the date of the accident. However, this is not the only deadline that matters. The notice requirement and the requirement to exhaust the at-fault driver’s liability coverage before making a SUM demand mean that earlier deadlines are often the critical ones in practice. Missing any one of these procedural steps can be as fatal to a claim as missing the overall limitations period.
Can a pedestrian who does not own a car make a SUM claim?
Possibly. A pedestrian without their own vehicle may be able to make a SUM claim under a family member’s policy if they reside in the same household. If no household policy exists, New York’s Motor Vehicle Accident Indemnification Corporation (MVAIC) may provide a remedy in certain hit-and-run or uninsured driver situations. The eligibility rules for MVAIC coverage are specific, and applying for it involves its own procedural steps, including a timely filing requirement.
Does New York no-fault insurance affect my SUM claim?
New York’s no-fault system pays for initial medical bills and lost wages regardless of fault, but it has limits. No-fault does not compensate for pain and suffering, and its wage replacement cap may not reflect the full income loss from a serious injury. SUM coverage fills a different gap: the gap between what the at-fault driver’s liability policy pays for serious injuries that exceed the no-fault threshold and what fair compensation for those injuries actually requires. The two systems run in parallel, not as substitutes for each other.
What if I was partially at fault for the accident? Can I still make a SUM claim?
New York follows a pure comparative fault rule, meaning your recovery is reduced by your percentage of fault but is not barred entirely. In a SUM claim, the arbitrator or the parties in negotiation will assess the relative fault of all parties, including you, and any award may be reduced accordingly. However, even a victim who bears some portion of fault for a serious crash may recover a significant portion of their damages through SUM coverage. The analysis is fact-specific, and having counsel who can present your case in the most favorable light matters significantly in this context.
Representing SUM Underinsured Motorist Clients Across New York City and the Five Boroughs
Cohan Law Firm represents underinsured and uninsured motorist claimants throughout the entire New York City metro area. In Manhattan, the firm handles SUM claims arising from crashes in Midtown, the Financial District, Washington Heights, Harlem, and the Upper East and West Sides. Across Brooklyn, the firm serves clients from neighborhoods including Bay Ridge, Flatbush, Crown Heights, Bushwick, Williamsburg, Sunset Park, and Bensonhurst. In Queens, representation extends to Flushing, Jamaica, Astoria, Jackson Heights, Forest Hills, Ridgewood, and Howard Beach. Bronx clients come to the firm from the South Bronx, Mott Haven, Fordham, Pelham Bay, and Riverdale. The firm also handles SUM claims for clients from Staten Island, including communities in St. George, Tottenville, and New Dorp.
Beyond the five boroughs, the firm extends its representation to accident victims in the surrounding region, including clients from Long Island, Westchester County, and other areas where New York insurance law and SUM coverage rules apply to serious motor vehicle crashes. Wherever the accident occurred and wherever the client lives, the firm’s digital intake process means geography is not a barrier to getting started.
Talk to a New York Underinsured Motorist Attorney About Your Claim
If you were seriously hurt in a crash and the at-fault driver’s insurance was not enough to cover what you have been through, a New York underinsured motorist attorney can review your own policy, identify every source of available coverage, and handle the claim process from the first notice letter through arbitration if necessary. The procedures in SUM cases are specific, the deadlines are real, and insurance companies do not voluntarily pay what they owe.
Cohan Law Firm offers free, confidential consultations with no obligation and no fee unless you recover. The firm handles everything digitally if you prefer, so getting answers does not require leaving home while you are still healing. Call Cohan Law Firm today to speak directly with an attorney about your SUM claim and what your policy may actually be worth.