Short answer
The IRS decides whether a worker is an employee or an independent contractor by looking at the whole relationship and how much right the business has to direct and control the work. It groups the evidence into three areas: behavioral control, financial control and the type of relationship. The label in a contract doesn't settle it. Employees get a W-2 and you withhold and pay payroll taxes; contractors pay their own self-employment tax.
Hiring help is a big step for a small business, and the first question is often whether the person is an employee or an independent contractor. The answer decides who pays which taxes, which forms you file and what happens if the IRS disagrees with you later.
This guide follows the IRS page on independent contractors and employees, linked at the end. States can apply their own tests for things like unemployment insurance and wage rules, so check your state's rules too.
What is the IRS test for independent contractor vs. employee?
There is no single checklist. The IRS says you have to consider all the information that shows the degree of control and independence, and look at the entire relationship. It sorts that evidence into three categories.
| Category | The question the IRS asks | Points toward an employee |
|---|---|---|
| Behavioral control | Does the company control, or have the right to control, what the worker does and how the worker does the job? | You set the hours, give detailed instructions, train the worker in your methods |
| Financial control | Does the company control the business side of the job: how the worker is paid, whether expenses are reimbursed, who provides the tools? | You decide how the worker is paid, reimburse their expenses and supply the tools and equipment |
| Type of relationship | Are there written contracts or employee-type benefits? Is the relationship expected to continue? Is the work a key part of the business? | Benefits such as paid leave or insurance, an open-ended relationship, work that is your core service |
No one factor decides it. A written contract that says "independent contractor" helps show what both sides intended, but it won't outweigh the facts if you control the work like an employer.
What changes for taxes?
| Employee | Independent contractor | |
|---|---|---|
| Form they give you | Form W-4, Employee's Withholding Certificate | Form W-9, Request for Taxpayer Identification Number |
| Income tax | You withhold it from each paycheck | Not withheld; the contractor pays estimated tax |
| Social security and Medicare | You withhold 7.65% (6.2% + 1.45%) and pay a matching 7.65% | The contractor pays 15.3% self-employment tax |
| Federal unemployment (FUTA) | You pay it | Not paid |
| Year-end form | Form W-2, Wage and Tax Statement | Form 1099-NEC for nonemployee compensation, when required |
The 6.2% social security share applies to wages up to the 2026 wage base of $184,500. Medicare has no wage limit. Once you have employees, the deposit rules in our guide to the payroll tax deposit schedule apply.
What happens if you misclassify an employee as a contractor?
If you treat an employee as a contractor without a reasonable basis, the IRS says you may be held liable for the employment taxes for that worker. The relevant rules are in Internal Revenue Code section 3509. In practice that can mean paying employment taxes for past years that you never withheld from the worker.
There are two forms of relief worth knowing about:
- Section 530 relief. A business that had a reasonable basis for not treating a worker as an employee may be relieved from the federal employment tax for that worker. The IRS notes that this relief does not make the worker an independent contractor.
- The Voluntary Classification Settlement Program (VCSP). An optional program that lets a business reclassify workers as employees for future tax periods with partial relief from federal employment taxes. Eligible businesses apply with Form 8952.
How to get an official answer: Form SS-8
If the facts are unclear, the business or the worker can file Form SS-8, Determination of Worker Status for Purposes of Federal Employment Taxes and Income Tax Withholding. The IRS reviews the facts and gives an official determination. Plan ahead: the IRS says a determination can take at least six months.
A practical checklist before you hire
- Write down how the work will be done. Who sets the hours, the methods and the place of work?
- Look at the money side. Does the worker invoice, set their own price, carry their own costs and work for other clients?
- Think about the relationship. Is this a defined project or an ongoing role at the center of your business?
- Collect the right form on day one. A Form W-4 from an employee, or a Form W-9 from a contractor.
- Keep the records. Contracts, invoices and payment records support your decision if it is ever questioned. Keep employment tax records for at least four years; see how long to keep business records.
How Top Accounting Firm can help
Our payroll service handles paychecks, withholding, deposits and quarterly filings for your employees, and our bookkeeping team tracks contractor payments so year-end forms are ready on time. If you are unsure how to set up a new hire, book a free consultation.
Frequently asked questions
What are the three IRS tests for independent contractor vs. employee?
Does a contract make someone an independent contractor?
What happens if I misclassify an employee as a contractor?
How long does Form SS-8 take?
Which form does a contractor fill out?
Do I pay payroll taxes for an independent contractor?
Sources
- IRS: Independent contractor (self-employed) or employee?
- IRS: Publication 15 (2026), Employer's Tax Guide
- IRS: Self-employment tax (Social Security and Medicare taxes)
- IRS: About Form 1099-NEC
Checked against these sources on October 26, 2026. This article is general information, not tax or legal advice. Rules, fees and deadlines change, so confirm with the official source or a tax professional before you file.
