Here's something that surprises a lot of business owners: even if a worker clearly qualifies as an independent contractor under IRS guidelines, they might still be classified as an employee under state law. The tests are different. The presumptions are different. And the penalties are different.

State classification standards govern things like:

Eligibility for state unemployment insurance Coverage under state minimum wage and overtime laws Workers' compensation requirements Access to paid leave and other state-mandated benefits Anti-discrimination protections under state employment law A worker you've legitimately classified as a contractor for federal tax purposes could be entitled to unemployment benefits under your state's law — meaning you'd owe back contributions to the state unemployment fund. This isn't a hypothetical. It happens regularly.

The general principle is this: federal law is the minimum standard. When state law is more protective of workers, state law wins.

California's AB 5, signed in 2019 and effective January 1, 2020, codified the "ABC test" from the California Supreme Court's 2018 Dynamex decision. Under AB 5, a worker is presumed to be an employee under the California Labor Code unless the hiring entity can prove all three of the following:

A. The worker is free from the control and direction of the hiring entity in performing the work — both under the contract and in actual practice.

B. The worker performs work that is outside the usual course of the hiring entity's business.

C. The worker is customarily engaged in an independently established trade, occupation, or business of the same nature as the work performed.

Part B is the killer clause for most service businesses. If you run a photography studio and hire a photographer to shoot a wedding for you, they fail Part B — because photography is your business. Under California law, that photographer is your employee. The fact that they have their own LLC and work for ten other clients doesn't change the Part B analysis.

California has carved out a significant number of exemptions — doctors, dentists, attorneys, licensed insurance agents, real estate licensees, accountants, engineers, direct sales salespersons, and others may still qualify as contractors under a different standard (the older Borello multi-factor test). But the exemption list is specific and technical. Don't assume you fall into one without checking.

Willful misclassification in California carries civil penalties of $5,000 to $25,000 per violation. California also allows workers to bring private lawsuits for misclassification under the Private Attorneys General Act (PAGA), which means you can face class-action-style liability even as a small business.

Massachusetts has used the ABC test since 2004 — well before California adopted it — under the Massachusetts Independent Contractor Law (MGL c. 149, § 148B). The Massachusetts ABC test is, if anything, even stricter than California's, because the statute provides no broad exemption for licensed professionals or other categories.

Every one of the three ABC factors must be met for a worker to be classified as a contractor in Massachusetts. And the courts have interpreted the "outside the usual course of business" element aggressively. A marketing agency that hires a social media manager will face a very hard time satisfying Part B.

Massachusetts also applies the ABC test for wage and hour purposes, which means misclassified workers can recover unpaid minimum wage, overtime, and other wage-related damages — trebled under state law in some cases.

New Jersey uses the ABC test for unemployment insurance and wage and hour purposes. The New Jersey Department of Labor has been particularly aggressive about enforcement in recent years, with targeted audit programs in the construction, transportation, and home health care industries.

In New Jersey, misclassification can result in:

Assessment of back unemployment insurance contributions Penalties of up to $5,000 per misclassified worker for a first offense and up to $10,000 for subsequent violations Debarment from public contracts The state also has a construction industry supplement to its ABC test, which imposes additional requirements on the construction sector.

New York doesn't use the ABC test statewide for all purposes. Instead, it applies different classification standards depending on which law is at issue — unemployment insurance, wage and hour, workers' comp. For unemployment insurance purposes, New York applies a multi- factor control test that looks at the degree of direction, supervision, and control the business exercises over the worker.

What New York does have that's worth highlighting: a new independent contractor reporting requirement (effective since 2022) that requires businesses to report newly engaged contractors to the state Department of Taxation and Finance when the contract exceeds $2,500. You have 20 calendar days from when the contract is signed or work commences. Failure to report carries a $20 per-person penalty.

Illinois passed the Employee Classification Act primarily aimed at the construction industry but with broader implications. It creates a strong presumption of employee status in construction-related work and allows both the state and workers to bring legal actions for misclassification.

More broadly, Illinois applies the ABC test for unemployment insurance purposes, making it one of the ABC states under that regime even if its approach elsewhere is less uniform than California or Massachusetts.

According to current state law surveys, the following states apply some version of the ABC test (at least for unemployment insurance and/or wage and hour purposes): Alaska, Arkansas, Connecticut, Delaware, Georgia, Hawaii, Indiana, Kansas, Louisiana, Maine, Maryland, Nebraska, Nevada, New Hampshire, New Mexico, Ohio, Oregon, Rhode Island, Tennessee, Utah, Vermont, Washington, and West Virginia.

The details vary by state — some apply the ABC test only for unemployment insurance, others more broadly. If you regularly hire contractors in any of these states, you need to understand the local standard.

Texas, Florida, Georgia, and several other states apply standards closer to the federal IRS common-law test or the DOL economic reality test, giving businesses more flexibility in structuring contractor relationships. That said, "more flexible" doesn't mean "anything goes." The fundamental requirements of genuine independence still apply.

Even in business-friendly states, you can still face federal-level enforcement if the IRS or DOL determines a misclassification occurred. State-level flexibility doesn't insulate you from federal liability.

If your contractors are based in multiple states, or if you do business in multiple states, here's what you should do:

Map your risk by state. Identify which states your contractors are located in and whether those states use the ABC test or a more flexible standard.

Use contractor agreements that specify the governing law. While this doesn't exempt you from state regulation, it clarifies the framework for any disputes.

Review your classification in ABC states separately. The fact that a worker qualifies as a contractor under IRS guidelines doesn't mean they're properly classified under California, Massachusetts, or New Jersey law. Analyze each state's test independently.

Consult a state-specific employment attorney. This is especially important if you're hiring contractors in California or Massachusetts for work that's related to your core business activities. The rules are nuanced enough that general advice doesn't cut it.

Worker classification is not a one-size-fits-all analysis. What's compliant in Texas may be illegal in California. What works under federal law may expose you to state liability in Massachusetts. The patchwork of state standards is one of the most overlooked compliance risks for small businesses that operate across state lines or hire remote contractors.

Know the rules in every state where your business touches the ground. It's not glamorous, but it's the kind of due diligence that keeps you out of trouble.

Beyond traditional contractor classification, there's a newer and rapidly evolving area of concern: using AI tools in your business.

Start from the federal classification baseline, then apply your state's overlay. The stakes show up in which form you file and in penalties — your contractor agreements should reflect the strictest state in play.