To report a false workers’ comp claim, contact your workers’ compensation insurer’s special investigations unit, your state’s insurance fraud bureau, or the National Insurance Crime Bureau’s hotline at 800-835-6422.1NICB fraud hotline Reports get taken seriously when they include specifics: names, dates, and documented inconsistencies between what the claimant said and what you actually saw or know.
Where you file depends partly on who you are. An employer usually starts with the carrier. A coworker or bystander usually gets further with a state bureau or the NICB. Suspected criminal conduct — forged records, staged accidents, kickbacks between claimants and providers — also belongs with law enforcement.
Where to File the Report
Your Workers’ Comp Insurance Carrier
For employers, the fastest route is your own workers’ comp insurer. Every major carrier maintains a special investigations unit staffed with fraud analysts and, in some cases, former law enforcement. Ask specifically for the fraud or special investigations department rather than the general claims line. These units have subpoena authority in many states and can coordinate surveillance, medical record reviews, and interviews far more efficiently than an individual can.
Your State’s Insurance Fraud Bureau
Most states operate a dedicated insurance fraud bureau, usually housed within the state department of insurance or the workers’ compensation board. These bureaus accept reports from employers, coworkers, medical providers, and the general public, and many offer toll-free hotlines and online submission forms. Search your state’s department of insurance website for “fraud bureau” or “fraud reporting” to find the right agency. Some states funnel reports through a workers’ compensation commission instead, and required forms and procedures vary by jurisdiction, so check local requirements before filing.
The National Insurance Crime Bureau
The NICB runs a national fraud hotline at 800-835-6422, staffed Monday through Friday from 7 a.m. to 7 p.m. Central time, and accepts reports through an online form.1NICB fraud hotline For workers’ comp, select the “Commercial” category, which covers business losses along with cargo theft. You can report anonymously, though leaving contact information helps investigators follow up. The NICB is funded by insurance companies and works closely with law enforcement, so a tip filed here often reaches the same investigators who would handle a direct complaint to a carrier.
Law Enforcement
If you have evidence of outright criminal activity, such as forged medical documents, a staged accident, or a kickback arrangement between a claimant and a medical provider, contact local law enforcement or your state’s attorney general in addition to the channels above. Fraud involving federal employees is handled by the U.S. Department of Labor’s Office of Inspector General.
Evidence That Gets a Report Taken Seriously
A vague “something seems off” rarely triggers an investigation. The reports that get picked up are the ones with specifics. Focus on three things: what the claimant said, what the records show, and what you have actually observed.
Inconsistencies in the Claimant’s Account
Note contradictions between what the claimant reported and what you know firsthand. If someone claimed a back injury from lifting heavy equipment but their job doesn’t involve lifting, that’s a discrepancy worth documenting. Dates matter too. Pay attention to whether the reported injury date lines up with when the employee was actually working, or whether it conveniently follows a disciplinary action, a layoff notice, or a denied vacation request.
Medical Records and Employment History
Medical records are where many fraudulent claims unravel. Comparing current claims against pre-existing conditions can reveal patterns of exaggeration. Employment history is equally useful: multiple prior claims at different employers, or injuries that coincide with employment milestones, form the kind of pattern investigators know to look for. You don’t need to obtain records yourself. Flag the pattern and let the investigator request them through proper legal channels.
Surveillance and Social Media
If a claimant says they can’t walk without a cane and you see them jogging through the neighborhood, that’s powerful evidence. Public observations are fair game, and insurers routinely hire private investigators to document claimant activity in public spaces. Social media is the other major source. Publicly visible posts showing physical activity inconsistent with a claimed injury — vacation photos, gym check-ins, recreational sports — regularly turn up in fraud cases. Stick to what’s publicly visible. Investigators can access private posts only through a court order, and reaching into someone’s account without authorization creates legal problems that can sink an otherwise solid case.
Putting the Report Together
Once you have your evidence, write a statement covering the basics: who the claimant is, what they claimed, when the alleged injury occurred, and why you believe the claim is fraudulent. Be specific and factual. “I saw John loading furniture into a truck on March 15, three days after he reported he couldn’t lift anything over five pounds” is useful. “I think John is faking it” is not.
Some state fraud bureaus require a specific reporting form, usually downloadable from the bureau’s website. If you’re going through a carrier, ask their special investigations unit whether they have a preferred format. Include copies of any supporting documentation: photos, screenshots of social media posts, employment records that show a pattern, or written statements from witnesses. Keep the originals in your own file.
Stick to what you know and what you’ve seen. Speculation, personal grudges, and assumptions about someone’s character don’t belong in a fraud report and can undermine your credibility. Investigators will form their own conclusions from the evidence.
Are You Protected If You Report
Nearly every state has an immunity statute that shields people who report suspected insurance fraud in good faith from civil and criminal liability. The protection generally requires two things: that you sent the report to an authorized agency (your insurer, a state fraud bureau, or law enforcement), and that you had a genuine basis for suspicion rather than a personal vendetta. Some states frame it as immunity unless the reporter acted with “actual malice,” others require affirmative “good faith.” The practical result is the same: honest reporters are protected. Filing a report you know to be false, or filing one to harass someone, strips that immunity and can expose you to civil liability and criminal charges for filing a false report.
Retaliation is a separate concern for employees and coworkers. The U.S. Department of Labor identifies both “workers’ compensation” and “fraud and financial issues” as protected reporting categories under federal whistleblower statutes. Retaliation includes firing, demotion, schedule changes, intimidation, or any action that would discourage a reasonable employee from coming forward. If your employer retaliates, you can file a complaint with the Occupational Safety and Health Administration, which enforces several federal whistleblower laws. Many states add their own anti-retaliation provisions through workers’ compensation or insurance fraud statutes.
Document everything. Save emails, note conversations with dates and witnesses, and keep copies of your performance reviews from before and after you made the report. That paper trail is what makes a retaliation claim provable.
Handling Medical Information Carefully
Medical records sit at the center of most fraud investigations, but accessing and sharing them is regulated. The Health Insurance Portability and Accountability Act limits how health plans, providers, and their business associates use and share protected health information. During a fraud investigation, records can generally be shared with insurers processing the claim or with law enforcement pursuant to legal process. Casually disclosing a claimant’s medical details to managers, coworkers, or anyone without a legitimate need is a violation.
Civil HIPAA penalties start at $145 per violation for unknowing breaches and climb past $73,000 per violation for willful neglect that goes uncorrected, with annual caps above $2 million for repeated violations of the same provision. Criminal penalties for knowingly obtaining or disclosing health information improperly reach $50,000 and one year in prison, rising to $250,000 and ten years if the information was used for commercial advantage or personal gain.
The practical rule: share medical information only with your insurer’s fraud investigation team, your attorney, or the state agency handling your report. Don’t circulate a claimant’s records internally or discuss their health details with people who aren’t directly involved.
What Happens After You File
Filing the report is the beginning, not the end. Investigations can take weeks or months, and staying engaged helps. Keep in contact with whichever entity is handling the case: the carrier’s special investigations unit, the state fraud bureau, or law enforcement. If you find more evidence or spot new inconsistencies after filing, pass them along promptly.
Keep a file of every communication tied to your report — emails, letters from investigators, notes from phone calls with dates and names, and copies of everything you submitted. If the case eventually goes to court, that documentation establishes your diligence and the timeline. It also protects you if anyone later questions whether you reported in good faith.
Don’t expect frequent updates. Fraud investigations are confidential, and agencies often can’t share progress. Silence doesn’t mean nothing is happening. If you’ve heard nothing after 60 to 90 days, a brief follow-up call to confirm the case is still active is reasonable.