Contractor or employee: how the IRS decides
The IRS looks at how much control you have over the work, not what your agreement says. If you set the hours, supply the tools and direct how the job gets done, that person is probably an employee. Misclassifying them can leave you owing back payroll taxes and penalties.
Updated November 2026 · By Pankil Kumar, Managing Partner
Quick facts
- The test. Behavioral control, financial control and the relationship
- Employee. You withhold taxes and pay the employer share
- Contractor. They handle their own taxes
What does the IRS actually look at?
There's no single test. The IRS weighs three groups of facts, and no one factor decides it.
- Behavioral control. Do you tell them when, where and how to work? Do you train them on your methods?
- Financial control. Do they invoice you, use their own tools, work for other clients and risk a loss?
- Relationship. Is there a written contract? Do they get benefits? Is the work ongoing and central to your business?
A signed contractor agreement helps, but it doesn't settle anything by itself. The facts of the work do.
What's the difference in cost?
With an employee, you withhold income tax and the employee's share of Social Security and Medicare, then add your own 7.65% on top, plus federal and state unemployment tax. With a contractor, you pay the invoice and send a 1099-NEC if they cross the threshold.
That gap is why misclassification tempts owners and why agencies watch for it.
What happens if you get it wrong?
You could owe the income tax and payroll taxes you should have withheld, plus penalties and interest. State agencies may also get involved over unemployment and workers' compensation, and some states use a stricter test than the IRS. Labor law adds its own overtime and minimum wage exposure.
The IRS has a Voluntary Classification Settlement Program for businesses that want to fix this going forward at a reduced cost. It has eligibility rules, so check them before you apply.
What should you do if you're unsure?
Write down the facts of how the person actually works, then run them against the three groups above. If most point to employee, put them on payroll. Either side can ask the IRS for a ruling using Form SS-8, though it can take months. For anyone you keep as a contractor, get a W-9 before the first payment. If you're moving someone to W-2, read how to hire your first employee.
Sources
- IRS: Independent contractor or employee
- IRS: About Form SS-8
- IRS Publication 15-A: Employer's supplemental tax guide
General information, not tax advice for your situation.
Can someone be both an employee and a contractor for the same company?
It's possible if the work is truly different, but it draws scrutiny. Same work, same person usually means one classification.
What is Form SS-8?
It's the form you or a worker can file to ask the IRS to determine worker status. It takes time, and the answer applies to that situation.
Does a contract make someone an independent contractor?
No. A contract is one piece of evidence. The IRS looks at how the work actually happens.
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