AB5 / Independent Contractor Test
Also known as: AB5, ABC Test, AB2257
The ABC test classifies a worker as an employee unless ALL three apply: (A) Free from control, (B) Service outside the usual course of the hiring entity's business, (C) Customarily engaged in independently established trade. Most states use similar but less-strict tests. New Jersey, Massachusetts also aggressive. Codified in California Labor Code § 2775, the test presumes any worker is a W-2 employee—triggering mandatory workers' compensation coverage—unless the hiring business satisfies all three prongs of the ABC test.
Real-world scenario
Golden State Courier Collective, a same-day delivery outfit in Sacramento, ran 14 drivers as 1099 contractors and carried no workers' compensation policy — saving what it estimated at $62,000 a year in premium. After a driver fractured a wrist on the job, the state applied the AB5 "ABC test," ruled the drivers were employees, and the exposure unraveled fast. The injury claim developed to $48,000 in medical and indemnity, and because there was no coverage, the uninsured-employer penalty added $10,000, back-premium was assessed at $74,000 across three prior years, and a "stop order" fine of $1,500 per employee reached $21,000.
Their broker rebuilt the program properly. A guaranteed-cost workers' comp policy came in at $71,000 annually on a $1,120,000 payroll, with statutory limits and employers' liability at $1,000,000 each accident. They added a business owner's policy at $3,400 carrying a $1,000,000 per-occurrence limit and a $1,000 property deductible, plus an EPLI policy with wage-and-hour defense at $6,200 after a former driver filed a misclassification class action seeking $240,000 in unpaid overtime.
Netting it out, the "savings" from avoiding comp turned into roughly $153,000 in penalties, back-premium, and claim costs — before the $80,600-per-year cost of doing it right. Reclassifying 14 workers correctly cost far less than one enforcement action.
How it affects your premium
AB5 itself is a legal test, not a purchasable policy — but how you classify workers drives the premium on nearly every commercial line you buy. These factors move the cost most:
- Total reportable payroll — once contractors are reclassified as employees, their wages become workers' comp payroll, often adding tens of thousands in annual premium overnight.
- Governing NCCI class code — a delivery-driver or roofing code carries a far higher rate than a clerical code, so reclassifying field workers hits harder than office staff.
- Prior misclassification history — a past stop order, uninsured-employer penalty, or state audit finding makes underwriters cautious and can push you into the assigned-risk market.
- Uninsured-subcontractor exposure — at premium audit, any 1099 worker without a valid certificate is charged back to you as if they were your employee.
- EPLI wage-and-hour appetite — misclassification class actions make insurers limit or sublimit wage-and-hour defense, raising that portion of the premium.
- Experience modifier — an open injury claim from a formerly "uncovered" worker inflates your experience mod for three years, multiplying every future comp premium.
- State of operation — California's strict ABC test creates more reclassification pressure and higher enforcement fines than most states.
Common misconceptions
Myth: If a worker signs a 1099 independent-contractor agreement, AB5 doesn't apply to them.
Reality: The contract label is nearly irrelevant — California applies the ABC test to the actual working relationship, so a signed 1099 agreement will not stop a reclassification or the resulting workers' comp back-premium.
Myth: Requiring my subcontractors to carry their own insurance means I'm off the hook at audit.
Reality: Only if you collect a valid certificate of insurance for each one; any uninsured 1099 worker gets charged back to your policy as payroll during the premium audit.
Myth: AB5 is only a payroll-tax issue, not an insurance problem.
Reality: Misclassification triggers uninsured-employer penalties, comp back-premium, and often an EPLI wage-and-hour class action, so it hits several coverage lines at once.
Frequently asked questions
Does AB5 mean I have to buy workers' comp for people I used to treat as contractors?
What happens at my premium audit if I still have 1099 workers?
Can insurance protect me from a misclassification lawsuit?
How much can misclassification actually cost if a worker gets hurt with no coverage?
Is AB5 the same in every state?
Sources cited
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