An independent contractor is a self-employed worker who controls how they do the work and runs their own business. For federal taxes, the IRS decides using common-law rules on control, not the label or the tax form you use. State tests can differ.
Also called: 1099 contractor, Subcontractor, Self-employed worker
The label decides who pays what. For an employee, you withhold income tax, pay your share of Social Security and Medicare, and usually carry workers' compensation. An independent contractor handles their own taxes and insurance. Calling someone a contractor when the facts say employee doesn't move those costs off you; it can come back as back taxes, interest and penalties.
For federal employment taxes, the IRS applies common-law rules and looks at the whole relationship. The evidence falls into three groups 1:
The IRS says to weigh all the evidence of control and independence 2. A signed contractor agreement is one piece of that evidence, not the answer, so how the work actually happens matters.
Example: An HVAC owner pays two people by the job. The first runs his own licensed duct cleaning company, sets his price, brings his own truck and equipment, carries his own insurance and works for several contractors. The second rides in the owner's van, uses the owner's tools, follows the owner's schedule and works only for this business. The first looks like an independent contractor. The second looks like an employee, whatever form he receives at year end. The people are made up for illustration.
If you pay a non-employee $2,000 or more for services in a calendar year, payments made after December 31, 2025 are generally reported on Form 1099-NEC 3. For earlier years the threshold was $600 3. Collect a W-9 before the first payment so you have the name and taxpayer ID.
The form reports payments. It doesn't make anyone a contractor. If the relationship fails the common-law test, a stack of 1099s won't help.
On your own side of the arrangement, if you're the one working as a sub, your income goes on Schedule C and you pay self-employment tax on it. Many subs get an EIN so they don't have to give their Social Security number on every W-9.
Rules and figures change, and many requirements vary by state and city. Check the current version of each source and your local authority before acting, and talk to a licensed professional about your specific situation.