It's tempting to want everyone you work with to be a contractor. No payroll taxes, no benefits, no workers' comp insurance. The appeal is obvious. But that's exactly why the IRS and the DOL spend significant enforcement resources on this issue.

When you misclassify an employee as an independent contractor, you're potentially dodging your share of FICA taxes (Social Security and Medicare), unemployment insurance contributions, and wage and hour obligations under the Fair Labor Standards Act. The worker loses legal protections they're entitled to. And you, the business owner, can be held liable for all of it — retroactively.

The consequences include back payment of payroll taxes (both the employee and employer portions), penalties, interest, and in egregious cases, criminal liability. California piles on civil penalties of between $5,000 and $25,000 per willful misclassification. This isn't theoretical exposure. It's a real risk that has sunk small businesses.

For federal tax purposes, the IRS uses a common-law test organized around three broad categories. No single factor is automatically decisive — the IRS looks at the totality of the relationship.

Does your business control what the worker does and how they do it? This includes things like setting their work hours, requiring them to follow specific procedures, providing training on how to complete their tasks, and dictating where the work is performed. If you're telling a worker how to do their job, not just what outcome you want, that's a significant indicator of employment.

An independent contractor, by contrast, has discretion over their own methods. You hire a freelance graphic designer and tell them you need a logo by Friday — how they create it is their business. That's the contractor dynamic. You hire a designer, give them a company laptop, require them to be on Zoom from 9–5, and walk them through your brand guidelines step by step — now you're starting to sound like an employer.

This category looks at the economic reality of the relationship. Does the worker invest in their own tools and equipment? Can they work for multiple clients? Do they have the ability to profit or lose money based on how they run their work? Are they paid by the project or by the hour on an ongoing basis?

Contractors typically have their own business infrastructure — they buy their own software, carry their own liability insurance, and set their own rates. An employee, on the other hand, is economically dependent on you as their primary or sole source of income, uses your equipment, and relies on your resources to do the job.

How do the parties describe and structure their relationship? Is there a written contract calling the person an independent contractor? Does the worker receive employee-type benefits like health insurance, vacation pay, or a pension? Is the work integral to your core business — or is it a specialized project outside your usual scope?

One thing worth emphasizing: a contract that calls someone an independent contractor doesn't make them one. The IRS cares about what actually happens in practice, not what the paperwork says. Courts have consistently held this. Labels don't override substance.

The Department of Labor uses a somewhat different framework to determine worker status under the Fair Labor Standards Act — the "economic reality" test. As of mid-2025, the DOL formally stepped back from enforcing the Biden-era 2024 six-factor rule and reverted to its older Fact Sheet #13 framework, while simultaneously proposing a new rule (as of February 2026) that would prioritize two "core" factors: the nature and degree of control, and the worker's opportunity for profit or loss.

The practical takeaway for 2025–2026: the DOL is in a regulatory transition, but the fundamental question hasn't changed. Is this worker economically dependent on you — or are they running their own business? Someone who works exclusively for you, on your schedule, with your tools, doing work that's central to your business operation, looks like an employee no matter what you call them.

If you do business in California, Massachusetts, New Jersey, Illinois, or about two dozen other states, there's an additional framework to understand: the ABC test. Many states have adopted this standard, and it's notably harder to satisfy than the IRS common-law test.

Under the ABC test, a worker is presumed to be an employee unless the hiring entity can prove all three of the following:

(A) The worker is free from the control and direction of the business, both by contract and in practice. (B) The worker performs work that is outside the usual course of the business's activities. (C) The worker is customarily engaged in an independently established trade, occupation, or business. Part B is where a lot of businesses trip up. If you run a marketing agency and hire someone to write copy, that copywriter fails Part B — because writing is your business. In that case, California law would consider them an employee, regardless of any contractor agreement.

Here's a quick gut-check. If any of the following are true, you should talk to an employment attorney before proceeding:

The worker only works for you and has no other clients You set their hours, not just their deadlines You provide all the tools, equipment, or software they use Their work is central to what your business does — not a one-off specialized project You've been working with this person for years in the same ongoing role You could fire them at will without a contract dispute None of these factors, standing alone, is automatically disqualifying. But if you're checking several boxes, you're in risky territory.

If you truly can't figure out how to classify a worker, you have options. You can file Form SS-8 with the IRS to request an official determination. Be aware: the IRS typically takes several months to respond, and the determination is binding. Alternatively, you can consult with an employment attorney who can review the specific facts of your working relationship.

You can also use the IRS's Voluntary Classification Settlement Program (VCSP), which allows employers to reclassify contractors as employees going forward with reduced tax liability. It's not a get-out-of-jail-free card, but it's a legitimate path toward compliance if you've been doing things wrong.

There is no shortcut around this. The distinction between an employee and an independent contractor isn't a paperwork game — it's a substantive legal question that the IRS and state agencies will look at through the lens of your actual, day-to-day working relationship. For solopreneurs and small business owners, the stakes are high because you often don't have a legal team watching your back.

Take the time to classify your workers correctly from the start. Use written contractor agreements that reflect genuine independence. And when in doubt, seek legal counsel before you sign anything or cut the first check.

Ready to bring on your first contractor the right way? Check out our next guide: How to Legally Hire Your First Contractor.

If the relationship is a contractor one, paper it properly and file the right form — 1099 vs W-2. State law can override your intent, so check state-specific contractor rules where your workers live.