Do independent contractors need an I-9? The rule, the 8 CFR test, and the contract-labor trap

No: an employer does not complete Form I-9 for a genuine independent contractor, or for people employed by a contractor such as a staffing agency or a construction subcontractor, because the contractor completes Form I-9 for its own employees. Two limits apply as of November 2026. Whether someone is an independent contractor depends on the facts under 8 CFR 274a.1(j), not on the contract's label or a Form 1099. And you may not use a contract to obtain the labor of someone you know is not authorized to work, which the regulation treats as hiring them.

This page covers the Form I-9 side of contractor relationships. Tax and wage classification are covered in worker misclassification for staffing agencies, and the onboarding paperwork for agency contractors is in W-2 contractor onboarding and the contractor onboarding checklist.

Who does not need a Form I-9?

M-274 Section 2.0 lists the people an employer does not complete Form I-9 for: employees hired on or before November 6, 1986 who are continuing in employment, people in casual domestic work in a private home on a sporadic basis, independent contractors, people "employed by a contractor providing contract services (such as employee leasing or temporary agencies)" who are providing labor to you, and people not physically working in the United States. It adds that self-employed people do not complete Form I-9 on themselves "unless you are an employee of a separate business entity, such as a corporation or partnership."

How does the Form I-9 rule decide who is an independent contractor?

The definitions in 8 CFR 274a.1 do the work. An "employee" under paragraph (f) does not include independent contractors. Paragraph (g) says that for "contract labor or services, the term employer shall mean the independent contractor or contractor and not the person or entity using the contract labor." Paragraph (j) defines independent contractors as individuals or entities "who carry on independent business, contract to do a piece of work according to their own means and methods, and are subject to control only as to results," and says the question is decided "on a case-by-case basis," "regardless of what the individual or entity calls itself." The factors it lists include whether the worker:

• supplies the tools or materials;
• makes services available to the general public;
• works for a number of clients at the same time;
• has an opportunity for profit or loss from the work;
• invests in the facilities for the work;
• directs the order or sequence of the work and sets the hours.

E-Verify's Supplemental Guide, Section 6.3 describes this as the Form I-9 regulations using "common-law understandings of employer-employee relationships." The IRS applies its own common-law test for employment taxes, grouped into behavioral control, financial control and the relationship of the parties (IRS Topic no. 762). The factors overlap, but they are separate decisions under separate laws, so a Form 1099 does not by itself settle the Form I-9 question.

What is the contract-labor trap?

The exclusion has a hard edge. 8 CFR 274a.5 says anyone who uses "a contract, subcontract, or exchange" to obtain the labor or services of a person in the United States, "knowing that the alien is an unauthorized alien," is considered to have hired that person in violation of the law. M-274 Section 11.8 repeats it, and Section 14.0 says that while you need not complete Form I-9 for a contractor's employees, "you may not use a contract, subcontract, or exchange to obtain the labor or services of an employee you know is unauthorized to work."

"Knowing" is broader than it sounds. Under 8 CFR 274a.1(l) it includes knowledge "which may fairly be inferred through notice of certain facts and circumstances," including acting "with reckless and wanton disregard" for the consequences of letting someone else bring an unauthorized worker into your workforce. In practice:

• you cannot verify a contractor's workers yourself. E-Verify's guide says the prime contractor in its example "cannot use E-Verify" for a self-employed subcontractor or a subcontractor's employees;
• what you control is what you know and what you ignore: contract terms that make the contractor responsible for its own Forms I-9, and a response when facts come to light;
• relabeling your own employees as contractors to avoid Form I-9 does not work, because 274a.1(j) looks at the facts.

What happens when you convert a contractor to an employee?

A conversion is a hire for Form I-9 purposes. "Hire" in M-274 Section 2.0 means the beginning of employment for wages or other remuneration, so:

1. Make and have accepted the employment offer.
2. Have the new employee complete Section 1 no later than the first day of work as an employee.
3. Examine documents and complete Section 2 within three business days of that first day.
4. Use the real first day of employment as an employee, not the date the contract started.
5. If you use E-Verify, create the case on the normal schedule for a new hire.
6. If the contractor label was wrong from the start, the business may have needed a Form I-9 all along. ICE's inspection fact sheet lists failure to prepare a Form I-9 as a substantive violation. Do not backdate; complete the form with accurate dates, attach a signed and dated explanation, and take advice on the earlier period.

What changes for staffing agencies, 1099 placements and corp-to-corp?

• W-2 temps. The agency is the employer and completes Form I-9; the client does not. Form I-9 for staffing agencies covers the agency's side, W-2 contractor onboarding the handoff, and joint employer liability what the client still carries.
• 1099 placements. An agency that places "independent contractors" who work set hours under the client's direction, with the client's tools, may be describing employees under 274a.1(j). If so, someone needed a Form I-9. Classify before the first day, not after an audit.
• Corp-to-corp. The consultant's company is the employer for Form I-9. A one-person corporation still completes Form I-9 for its owner if the owner is its employee, per M-274 Section 2.0.
• Converting placed workers. When a client hires an agency's temp directly, that is a new hire for the client, with a new Form I-9.

Does E-Verify change any of this?

Mostly not. E-Verify's guide says employers "are not required to complete Forms I-9 and use E-Verify for their independent contractors," and self-employed people are not required to complete Form I-9 on themselves, so they do not use E-Verify either. The exception is federal contracting: under the FAR E-Verify clause, E-Verify's subcontractor page says the requirement flows down to subcontracts for services or construction worth more than $3,500 with work in the United States, and a subcontractor with employees then verifies its own employees. Some states require contractors to use E-Verify on their own terms; check E-Verify requirements by state.

A checklist before you engage a contractor

• Decide classification from the facts of the work, before the work starts, and write down why.
• Keep evidence that matches the 274a.1(j) factors: the contractor's tools, other clients, control of hours and methods.
• Put responsibility for the contractor's own Forms I-9, and E-Verify where required, in the contract.
• For federal subcontracts, confirm whether the FAR E-Verify clause flows down.
• Do not complete Forms I-9 for a contractor's employees, and do not create E-Verify cases for them.
• If you convert or reclassify someone, treat it as a new hire with the real first day of employment.