Florida 120-Day Rule: When Workers’ Comp Carriers Must Decide

Your workers’ compensation carrier has paid for treatment, but the adjuster still says your claim is “under investigation.” Under the Florida 120-day rule, a carrier that begins providing benefits while it investigates generally has a limited time to accept or deny that your injury is covered.

That deadline can matter if payments stop months later. To understand where you stand, start with the first benefit the carrier provided, not the day you got hurt.

Key takeaways for injured Florida workers

• A carrier can provide benefits while investigating without immediately accepting liability for the injury.
• The 120-day period begins with the initial provision of compensation or benefits, not automatically with the accident or injury report.
• If the carrier fails to deny compensability within that period, it generally waives that defense. A narrow exception applies to material facts it couldn’t have found through a reasonable investigation.
• A dispute over a particular treatment request or wage check may still require action, even when the carrier can no longer deny the injury itself.

What the Florida 120-day rule requires

Florida Statute § 440.20(4) addresses a carrier that is uncertain whether an injury is compensable. It may begin paying while it investigates, but it must reach a decision within the statutory period.

Payment doesn’t necessarily mean acceptance

The law lets a carrier pay benefits without prejudice while it looks into the claim. That can allow an injured worker to receive care or compensation before the investigation is complete.

Still, an approved visit or disability payment isn’t always a final admission that the injury is covered. The distinction matters when an adjuster later sends a denial. The payment history may start the deadline, while the carrier’s written notices help show what position it took during that period.

The carrier must give written notice

When a carrier chooses to pay while investigating, it must notify the employee in writing. The notice must explain that the carrier has elected to pay all or part of the claim while investigating and will advise the employee of acceptance or denial within 120 days.

Keep that letter, even if treatment is going smoothly. Compare it with later denial notices and the dates benefits began. A phone call saying the claim remains open for review doesn’t replace the decision required by the statute.

When does the 120-day clock start?

The clock runs from the carrier’s initial provision of compensation or benefits. The accident date, the day you told your supervisor, and the date the employer reported the injury can all be different.

Find the first benefit the carrier provided

Review the first authorized medical visit, treatment approval, wage-loss payment, and other carrier-provided benefits. Medical care can matter even if you haven’t received a disability check.

A provider’s eventual billing date may differ from the date care was first authorized or provided. Likewise, a request for treatment doesn’t necessarily establish that a benefit was provided. If the start date is disputed, the authorization record, appointment history, payment records, and correspondence deserve a close review.

Don’t rely only on the date printed on your first check. Ask the carrier for a payment history and keep your own record of medical care it approved.

Identify the injury the carrier later denied

The question is also what the carrier provided benefits for. A later denial may concern an injury or condition that the carrier says was never part of its earlier payments. Medical records and authorization notices can show which body parts and diagnoses the carrier addressed.

That distinction can become important when symptoms develop or a specialist identifies another condition. An attorney can compare the original claim, authorized treatment, and denial language before calculating the deadline for the disputed injury.

What the carrier must do during its investigation

The 120-day period isn’t permission to leave a claim untouched. Florida law requires the carrier to investigate immediately and in good faith when it pays while uncertain about compensability.

Investigate while evidence is available

An investigation may involve the accident report, witness accounts, job duties, prior medical records, and opinions about whether work caused the injury. The carrier has time to gather evidence, but the statute expects it to use that time.

Keep accurate copies of what you provide. If an adjuster requests a statement, describe what you know without guessing about diagnoses or medical causation. Save messages that show when the carrier learned a fact it later uses to deny the claim.

Continue handling benefits while reviewing the claim

Under the pay-and-investigate provision, the carrier must initiate and continue payments as if it had accepted the claim while it investigates. If checks stop or authorized care stalls, ask for the reason in writing. Don’t assume an unexplained interruption is a formal denial of compensability.

Payment problems may also have their own remedies and timing rules. If wage checks are missing, review what to do about delayed workers’ comp payments and preserve your pay stubs, work-status reports, and correspondence.

What happens if the carrier misses 120 days?

Missing the deadline can substantially change a coverage dispute. Under section 440.20(4), a carrier that fails to deny compensability within 120 days after first providing benefits generally waives its right to deny compensability.

A late denial isn’t automatically the last word

If your carrier paid for care and later denied that the injury was work-related, the denial date deserves scrutiny. Compare it with the earliest benefit date and obtain the actual written denial. Don’t assume the adjuster’s statement that the claim was “closed” establishes when a denial occurred.

A waiver of the right to deny compensability addresses whether the injury is covered. It doesn’t automatically approve every surgery, referral, prescription, or amount of wage benefits requested. Those issues can involve separate medical and payment disputes.

An exception depends on facts the carrier couldn’t discover

The statute allows a late compensability defense if the carrier establishes that material facts relevant to compensability couldn’t have been discovered through a reasonable investigation during the 120-day period. The exception turns on both the importance of the facts and whether a reasonable investigation could have uncovered them earlier.

For that reason, a late denial calls for more than counting days. Records showing what the employer, medical providers, and worker told the carrier can help determine whether the claimed new information was available all along. A carrier’s failure to follow up on an early lead is different from a fact it couldn’t reasonably have discovered.

Other workers’ comp deadlines still apply

The Florida 120-day rule governs a particular carrier decision after benefits begin. It doesn’t give an injured worker 120 days to report an accident, nor does it suspend deadlines for disputed benefits.

The initial payment deadline is different

Florida has a separate rule for the carrier’s early response when disability is immediate and continuous for at least eight calendar days. In that situation, the carrier generally must pay the first installment of compensation or deny compensability within 14 days after the employer receives notice of the injury.

The Florida workers’ comp 14-day rule addresses that initial payment decision. It shouldn’t be confused with the later pay-and-investigate period, which starts only after the carrier first provides compensation or benefits under the applicable provision.

Your reporting and petition deadlines keep running

An injured worker generally must report an accident to the employer within 30 days. A Petition for Benefits has a separate limitations period, generally tied to when the worker knew or should have known the injury arose from employment. Authorized treatment and benefit payments can affect that calculation.

A claim marked “under review” doesn’t automatically extend your time to pursue disputed benefits. If care or payments have stopped, check the Florida workers’ comp filing time limits instead of waiting for the investigation to end.

How to protect your position while the carrier decides

The strongest starting point is a dated record. It can clarify both when the 120 days began and whether the carrier’s stated reason for a late denial holds up.

Build a claim timeline

Save the date you reported the injury, the employer’s accident report, and the name of the insurance carrier. Add the claim number, adjuster’s contact details, first authorized provider, appointment dates, payment records, and every written notice.

If the employer won’t provide carrier information, Florida’s Employee Assistance Office can be reached at 1-800-342-1741. Meanwhile, seek instructions for authorized routine treatment rather than assuming a provider you choose will be covered. Keep copies of work restrictions and requests for additional care.

A simple timeline also helps separate a denial of the entire injury from a refusal to approve one service. The carrier’s precise words matter when you decide what to challenge.

Act on a denial or stopped benefit

Ask for the denial in writing and keep the envelope or electronic delivery record. Check which injury and benefits it addresses, then compare the denial date with the first benefit date. If the carrier cites previously unknown facts, identify when those facts first appeared in the claim record.

When the carrier refuses a benefit that is due, filing a Florida workers’ comp Petition for Benefits may bring the dispute before a judge of compensation claims. Florida Statute § 440.192 sets out petition requirements. Legal review can help identify the benefit to request and the records needed to support it.

Frequently asked questions

Does the carrier get 120 days for every workers’ comp claim?

No. The rule concerns a carrier that begins providing compensation or benefits while it investigates uncertain compensability. A carrier may make an earlier decision, and other deadlines govern initial payments, medical requests, and an injured worker’s filings.

Can an insurer deny my claim after paying for treatment?

It may deny compensability within the applicable 120-day period if it follows the statutory requirements. After that period, the carrier generally waives that defense unless it proves the statutory exception. The first benefit date, written notices, and injury addressed by the payments all matter.

What if the carrier accepts my injury but denies an MRI?

Acceptance of the injury doesn’t mean every proposed service is approved. Ask the authorized provider for the treatment request and obtain the carrier’s reason for refusing it. A dispute about medical necessity or authorization may require a Petition for Benefits even if compensability is no longer contested.

Should I wait for the investigation to finish before contacting an attorney?

You don’t have to wait. Early advice can help preserve evidence about the first benefit, address interrupted care or checks, and identify filing deadlines. This is especially useful if the carrier paid for months before denying the work injury.

Conclusion

A carrier’s decision isn’t measured from the day you were hurt. Under the Florida 120-day rule, the date it first provided benefits can determine whether a later compensability denial is timely.

If your carrier paid and then reversed course, preserve the payment history, notices, and medical records. The dates and the reason for denial deserve review before you accept that benefits have ended.