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State Guide · Connecticut

Connecticut workers' compensation — one form that starts a 28-day clock on them.

Connecticut has something almost no other state offers: a rule that runs against the insurer. File the right form — the Form 30C — and your employer has 28 days to properly contest your claim or lose the right to contest it at all. Most injured workers have never heard of it.

Reviewed August 2026 11 min read Educational information — not legal advice

How the Connecticut system works

Nearly all Connecticut employers must carry coverage, administered by the state's Workers' Compensation Commission through district offices, with disputes heard by administrative law judges. Connecticut's wage formula is also unusual — benefits pay 75% of your after-tax (take-home) wages rather than two-thirds of gross — which often lands in a similar place but is calculated very differently.

Every deadline that matters

WhatDeadlineWhy it matters
Report to your employerImmediatelySame-day written notice — it starts care and creates the record.
File a Form 30C (written notice of claim)1 year from the injury (3 years for occupational disease)The formal claim — precise about your name, the date, the body parts, and where it's sent. Done right, it starts the 28-day preclusion clock below.
ExceptionsVariesA timely medical-care furnish or voluntary agreement can satisfy the claim requirement in some cases — but the Form 30C removes all doubt.

The 28-day preclusion rule

The clock that runs against the insurer

Once a proper Form 30C is filed and served, the employer/insurer has 28 days to either start paying (which preserves its right to contest for a period) or file a Form 43 disclaimer stating exactly what it disputes and why. Miss that window with neither, and the employer can be precluded — barred from contesting that the injury is compensable at all. Preclusion is one of the most worker-favorable rules in American workers' comp, and it only works if your Form 30C is filled out precisely and delivered correctly (certified mail to the employer and the Commission is standard). Sloppy forms lose the shield.

Doctor rules

Initial treatment typically starts with a provider the employer designates; after that first visit, you generally choose your treating physician — from the approved medical-provider framework, or the employer's plan if a certified one exists. The treating doctor's opinions carry real weight, and changing doctors later usually needs administrative approval. As everywhere: precise causation language on day one, every visit connected to the claim.

The benefits

BenefitWhat it pays
Medical careAll reasonable and necessary treatment, plus mileage to appointments.
Temporary Total75% of after-tax average weekly wage, within state caps.
Temporary PartialA percentage of the gap when you're earning less on light duty.
Permanent PartialScheduled weeks by body part and percentage after MMI — Connecticut's schedule covers organs and systems most states skip.
Discretionary & survivor benefitsAdditional post-specific benefits can be awarded in some cases; survivor and burial benefits.

How Connecticut disputes get resolved

  1. 1

    Informal hearing

    A short conference with an administrative law judge — many disputes resolve here with a recommendation.

  2. 2

    Pre-formal and formal hearing

    Escalating structure; the formal hearing is the full evidentiary trial with a written decision.

  3. 3

    Appeals

    To the Compensation Review Board, then the Appellate Court. Voluntary agreements and stipulated settlements need Commission approval.

Free official help

  • Connecticut Workers' Compensation Commission — district offices, forms (30C and all), and hearing scheduling: wcc.state.ct.us.
  • Education services — the Commission publishes plain-language guides and holds information sessions for injured workers.
When a lawyer makes sense in Connecticut

Preclusion questions (both building them and defending against Form 43s), disputed causation, PPD ratings, and all stipulated settlements. Fees are capped percentages subject to approval; consultations typically free — and a lawyer who spots a preclusion opportunity can change a case's entire posture.

Connecticut FAQ

File it anyway. Voluntary payments feel like acceptance but aren't a formal one — and the one-year clock runs regardless. The Form 30C locks your claim in, starts the 28-day clock, and costs you nothing but certified-mail postage.
Connecticut computes your average weekly wage, subtracts estimated federal and state taxes and FICA to get a "spendable" base, then pays 75% of that. Because comp benefits are tax-free, the result often approximates your real take-home — but the calculation has moving parts worth double-checking, especially with overtime or a second job.
Connecticut workers' compensation has generally covered injured workers regardless of status. Report immediately, file the Form 30C inside the year, and get case-specific guidance free.
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