What Is a C-3 Form and How Do You File a Workers' Comp Claim in New York?

A C-3 form is New York's official "Employee Claim Form." It's the document an injured worker files with the New York State Workers' Compensation Board to formally start a workers' compensation claim. It records the details of your injury, your employer, your wages, and your medical treatment. You must file it within two years of the injury, though filing as soon as possible is strongly recommended.

Telling your boss you got hurt is not the same as filing this form. Notifying your employer and filing the C-3 are two separate steps, and both are required to protect your benefits. This guide covers what the C-3 form is and who has to file it. It also walks through the deadlines that matter most, the information you need to complete it, and the mistakes that quietly sink otherwise valid claims.

What Is a C-3 Form in New York?

The C-3 form is the workers' comp claim form New York uses to officially open a case for a work-related injury or illness. You file it directly with the Workers' Compensation Board (WCB), not with your employer and not with the insurance company. Submitting it triggers the insurer's legal duties: to investigate your claim and, if it is accepted, to begin paying benefits.

You have three ways to file it:

• Online — the fastest option, through the Board's web portal at wcb.ny.gov. No account is required.
• By mail — using the printable C-3 PDF.
• In person — at any WCB district office.

No other documents are required alongside the C-3 itself. The form is the starting point. The rest of the process follows from it: medical reports, insurer review, and hearings if needed. (NYS WCB — File a Claim)

Who Needs to File a C-3 Form?

Almost any worker injured on the job in New York needs to file a C-3, not just full-time salaried employees. Coverage extends to part-time, seasonal, and temporary workers. A warehouse worker in the Bronx, a restaurant worker in Brooklyn, a construction laborer in Manhattan, and an office worker in Queens all file the same form when they get hurt at work.

Immigration status does not bar a worker from filing. New York's workers' compensation system covers injured workers regardless of documentation. Your right to file a claim does not depend on your immigration status. If you were hurt while working in New York, you can file.

Two points trip people up. First, as noted above, telling your employer about the injury is a separate step from filing the C-3. Doing one does not satisfy the other. Second, even if someone else helps you complete the form, you remain responsible for making sure it gets filed. That's true whether a family member, a coworker, or an attorney fills it out for you.

Key Deadlines for the C-3 Form — Don't Miss These

Two deadlines govern a New York workers' comp claim. Missing either one can cost you benefits.

Within 30 days: Report the injury to your employer. Written notice is strongly recommended so there is a clear record. If you fail to report within 30 days, you can lose benefits unless you show good cause for the delay.

Within two years: File the C-3 form with the Workers' Compensation Board. The two-year clock generally runs from the date of the injury. For an illness, it runs from the date you learned the illness was work-related. (NYS WCB — File a Claim)

There is a narrow exception worth knowing. For occupational hearing loss, New York Workers' Compensation Law § 49-bb allows a claim to be filed up to 90 days after you learn the hearing loss is work-related. That holds even if it falls outside the usual two-year window. (NY WCL § 49-bb)

Filing early matters even when you are technically within the deadline. Delays give insurers room to argue that the injury was not really work-related. Your wage-replacement benefits do not begin until the claim is active. The sooner you file, the sooner the process can start, and any payments along with it.

What Information Does the C-3 Form Require?

Gathering your information before you sit down to file makes the process far smoother. The form asks for several categories of detail:

• Personal information: your full legal name, address, phone number, date of birth, and Social Security number.
• Employer details: the company's name, address, and phone number; your job title; how long you have worked there; your hours per week; and your gross (pre-tax) pay per pay period.
• Other employers: the names and addresses of any other employers you worked for at the time of the injury.
• Injury details: the date, time, and location of the incident; exactly what happened and what you were doing; and the specific body parts injured.
• Witness information: the names of any coworkers or supervisors who saw the incident.
• Medical treatment: the name and address of your treating doctor or hospital, the date of your first treatment, and whether you are still receiving care.
• Lost time: your last day worked and whether you have returned to work.

Be specific about your injuries. "Right shoulder and lower back" is far more useful than simply "back." Vague descriptions can come back to limit what is covered later.

One supplemental form matters here. Did you previously injure the same body part or have a similar illness? Then you also need to file the C-3.3 form (Limited Release of Health Information). It authorizes the insurer to access your prior medical records. (C-3.3 PDF)

How to File a C-3 Form in New York: Step-by-Step

Filing the form itself is straightforward once you understand the sequence:

1. Report the injury to your employer in writing within 30 days.
2. Seek medical care from a WCB-authorized doctor — not just any emergency room.
3. Gather all required information (see the section above).
4. File the C-3 form. Filing online at wcb.ny.gov is fastest. You can also file by mail or in person at a district office.
5. File the C-3.3 if you have a prior injury to the same body part.
6. Save confirmation of your filing. Screenshot the online confirmation or keep your mailing receipt.
7. Track your claim through the Board's eCase system once it is assigned a case number.

A note on doctors: your medical provider must be WCB-authorized to treat workers' compensation patients. Your doctor also files a separate report detailing your diagnosis and treatment plan. That report now uses the CMS-1500 form, which replaced the older C-4 forms on July 1, 2022. Filing it is the doctor's job, not yours, but it works alongside your C-3 to support the claim. (NYS WCB — CMS-1500 Initiative)

What Happens After You File?

Once your C-3 is in, the Board reviews it and creates a case with a unique case number. It then sends notice to you and the other parties. The Board also notifies your employer and their insurance carrier. From there, the insurer investigates and may request medical records, accident reports, or statements.

The insurer is on a clock:

• Within 14 days, it must send you a written Statement of Rights.
• Within 18 days after the disability begins (or within 10 days of learning of the injury, whichever is later), it must either begin paying benefits or file a Notice of Controversy explaining why it disputes the claim. (NYS WCB — How the System Works)

Say the claim is accepted and you lost more than seven days of work. Lost-wage payments typically arrive every two weeks, and your employer or insurer pays your related medical bills. If the insurer disputes the claim, a Workers' Compensation Law Judge schedules a hearing. There you can present evidence and testimony. The Board also offers vocational counseling and social work services to injured workers going through the process.

Common Mistakes That Can Hurt Your Claim

A valid injury can still lead to a denied claim when the paperwork goes wrong. The most common missteps include:

• Waiting too long to file. Even within the two-year window, delays look suspicious to insurers.
• Reporting only to your employer and assuming that is enough — it isn't.
• Leaving fields blank or using vague language to describe the injury.
• Inconsistent statements between your C-3, your doctor's report, and your employer's account. Inconsistencies invite denial.
• Not listing every injured body part. If you report only one and another worsens later, the second may not be covered.
• Failing to sign and date the form. Unsigned forms are invalid and cause delays.
• Not keeping a copy of your submission.
• Sending the form to the wrong place — to your employer or insurer instead of the Workers' Compensation Board.
• Skipping the C-3.3 when a prior injury exists. The insurer will likely find it and use the omission against you.
• Understating your injury. Your written description can effectively cap what you are able to recover.

Do You Need a Lawyer to File a C-3 Form?

You can file the C-3 yourself, and no lawyer is required to start a claim. Many straightforward claims move through the system without one.

A lawyer tends to help most when the situation is more complicated. That includes cases where the insurer disputes the claim, where there is a prior injury to the same body part, where an undocumented worker has concerns about the process, or where an injury is severe and ongoing. Attorneys also catch errors before submission. Common ones include an incorrect employer name, a missing witness, or an injury description that is too vague to protect you.

Cost is rarely a barrier. Workers' compensation representation in New York is handled on contingency, so there is no upfront cost to the injured worker. Consider a worker who was injured on a job site but did not note on his form that he had reported the injury to his supervisor. The insurer denied the claim on the grounds that it was never reported. An attorney reviewing the form beforehand would likely have flagged and corrected that problem.

The stakes can be substantial. In one matter the firm handled, an undocumented worker was electrocuted on a scaffold and fell, requiring back and knee surgeries. He recovered $2,474,000. The result shows that even undocumented workers can pursue full benefits when their claims are filed and pursued properly. Prior results do not guarantee a similar outcome.

Frequently Asked Questions

What is the difference between the C-3 form and the FROI (First Report of Injury)?

The C-3 is the form you, the injured worker, file to claim benefits. The FROI is the First Report of Injury that your employer or its insurer files to report the accident. Different parties file them, and they serve different purposes. So your employer filing a FROI does not replace your obligation to file the C-3.

Can I file a C-3 form if my employer says I wasn't hurt on the job?

Yes. You file the C-3 directly with the Workers' Compensation Board, not with your employer. Your employer's disagreement does not stop you from filing. If the insurer disputes the claim, a Workers' Compensation Law Judge will hold a hearing where you can present evidence.

What if my injury developed over time, not from a single accident?

Occupational injuries and illnesses that build up over time are covered. For these, the two-year filing window generally runs from the date you knew, or reasonably should have known, that the condition was work-related. It does not run from a single accident date.

Can I still file if I already paid my own medical bills?

Yes. Filing the C-3 form lets you seek reimbursement for medical costs tied to a work injury in New York. Keep all your bills, receipts, and treatment records. Make sure your treating provider is WCB-authorized — if they are not, the Board may not cover those costs even after the claim is approved.

What if I missed the 30-day employer notification deadline?

Missing the 30-day notice deadline can jeopardize benefits, but it is not always fatal to a claim. The Board may still allow the claim if you show good cause for the delay, or show that your employer was not prejudiced by it. File as soon as possible and document why notice was late.

Is the C-3 form the same as the ACORD form my employer filed?

No. An ACORD form is an insurance industry document your employer or insurer may use internally to report a claim to their carrier. It is not your workers' comp claim with the Board. You still need to file the C-3 form separately with the Workers' Compensation Board to claim benefits.

What is the C-3.3 form and when do I need it?

The C-3.3 is the Limited Release of Health Information form. File it alongside your C-3 when you have a prior injury or illness involving the same body part. It authorizes the insurer to review your earlier medical records. Skipping it when it applies can give the insurer grounds to dispute or limit your current claim.

Can undocumented workers file a C-3 form in New York?

Yes. New York's workers' compensation system covers injured workers regardless of immigration status. Undocumented workers have the right to file a C-3 and pursue benefits for a work-related injury in New York. The firm has represented undocumented workers and recovered substantial compensation on their behalf.

Sources & Official Resources

New York Laws Cited

1. NY Workers' Compensation Law § 49-bb — Occupational Hearing Loss Filing Deadline

NYS Workers' Compensation Board 2. NYS WCB — File a Claim (C-3 form, deadlines, filing methods) 3. NYS WCB — How the System Works (insurer deadlines, benefit payments) 4. NYS WCB — Form C-3.3 Limited Release of Health Information 5. NYS WCB — CMS-1500 Initiative (replaced C-4 forms July 1, 2022) 6. NYS WCB — eCase Electronic Case Tracking

Contact The Orlow Firm

Have you been hurt at work in New York City and aren't sure you've filed everything correctly? You don't have to figure it out alone. A vague injury description, a missing supplemental form, or an inconsistent statement can cost an injured worker the benefits they're entitled to. Those problems are far easier to prevent than to fix after a denial. The Orlow Firm has helped injured workers throughout Queens and New York City for over 40 years.

Call (646) 647-3398 for a free consultation. We work on contingency — you pay nothing unless we win.

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This article provides general information and is not legal advice. Every case is different. Contact an attorney to discuss your specific situation.