No — 1099 independent contractors do not fill out Form I-9. Federal immigration regulations exclude independent contractors from the employment eligibility verification process that applies to employees, so businesses collect Form W-9 for tax reporting instead. The catch is classification: if the person you’re calling a contractor is actually functioning as an employee, the I-9 obligation was there all along, and so were the penalties for skipping it.
Why the I-9 Rule Doesn’t Reach Contractors
The Immigration Reform and Control Act of 1986 requires employers to verify the identity and work authorization of every employee they hire.1USCIS. Volume 10, Part A, Chapter 1 But the regulation that defines who counts as an “employee” for this purpose, 8 CFR 274a.1(f), states plainly that the term “does not mean independent contractors.”2eCFR. 8 CFR 274a.1 – Definitions A business that hires a true independent contractor has no duty to inspect that person’s identity documents or confirm their work authorization.
The same carve-out applies to E-Verify. A company that uses E-Verify does not run its contractors through the system. One narrow exception exists for federal contracting: if an independent contractor works as a subcontractor on a project covered by the Federal Acquisition Regulation’s E-Verify clause, that subcontractor must enroll in E-Verify and verify its own employees. A sole self-employed individual still does not complete an I-9 on themselves.3E-Verify. 6.3 Independent Contractors and Self-Employed Individuals
When a Worker Actually Counts as a Contractor
The exemption only protects you if the classification is correct. This is where most of the legal exposure sits.
For immigration purposes, 8 CFR 274a.1(j) defines an independent contractor as someone who carries on an independent business, contracts for a piece of work using their own means and methods, and is subject to the hiring party’s control only as to results.2eCFR. 8 CFR 274a.1 – Definitions The regulation lists factors that inform a case-by-case determination:
- Whether the worker supplies their own tools and materials.
- Whether the worker holds themselves out as available to the general public.
- Whether the worker serves multiple clients.
- Whether the worker’s income depends on their own business efficiency rather than a flat wage.
- Whether the worker has invested in their own facilities or equipment.
- Whether the worker controls the order and timing of the work.
The IRS applies a related framework organized around three categories of evidence: behavioral control (does the company direct how the work is done), financial control (who bears expenses, provides tools, and structures payment), and the type of relationship (contract terms, whether the work is a key part of the business, whether benefits are provided).4Internal Revenue Service. Independent Contractor (Self-Employed) or Employee? No single factor decides the answer. The common thread across every test: real contractors control how the work gets done. Directing when someone shows up, what tools to use, and how to perform each step points to an employee, whatever the contract says.
State ABC Tests Can Change the Answer
Several states apply a stricter “ABC test” that presumes a worker is an employee unless the hiring business proves all three prongs: the worker is free from the company’s control, the work is outside the company’s usual course of business, and the worker is engaged in an independently established trade of the same nature.5Federal Register. Employee or Independent Contractor Status Under the Fair Labor Standards Act, Family and Medical Leave Act, and Migrant and Seasonal Agricultural Worker Protection Act Missing any single prong makes the worker an employee under that state’s law. A business can pass the federal test and still fail a state ABC test, with separate state-level tax and penalty consequences.
The Paperwork You Do Collect Instead
Contractors fill out Form W-9, Request for Taxpayer Identification Number and Certification. The form captures the worker’s legal name, business entity type, and taxpayer identification number, usually a Social Security Number or Employer Identification Number, and the worker’s signature certifies the information and their backup withholding status.6Internal Revenue Service. About Form W-9, Request for Taxpayer Identification Number and Certification
Collect the W-9 before you make any payments. If a contractor fails to provide a valid TIN, the payer must withhold 24% of all reportable payments and send that to the IRS, and backup withholding continues until the contractor supplies the missing information.7Internal Revenue Service. Instructions for the Requester of Form W-9 (03/2024)
For 2026 tax returns, the threshold for filing Form 1099-NEC has risen to $2,000, up from the longstanding $600 floor, and the amount will adjust for inflation starting in 2027.8Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns – 2026 Below that threshold you don’t file a 1099-NEC, but the contractor still owes tax on the income.
If the Contractor Is Foreign
A nonresident alien contractor doesn’t submit a W-9. Instead, the business collects Form W-8BEN to certify foreign status.9Internal Revenue Service. About Form W-8 BEN, Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals) The payer withholds 30% of U.S.-source payments and reports them on Form 1042-S rather than a 1099-NEC.10Internal Revenue Service. Federal Income Tax Withholding and Reporting on Other Kinds of U.S. Source Income Paid to Nonresident Aliens A tax treaty may reduce that rate. The I-9 exemption still holds, but getting withholding wrong can leave the business owing the full 30% out of pocket.
What Misclassification Actually Costs
Calling someone a contractor doesn’t make them one. If an agency later reclassifies the worker as an employee, penalties arrive from several directions at once.
I-9 Penalties
A reclassified worker means an I-9 that should have existed doesn’t. Paperwork violations run from $288 to $2,861 per worker for a first offense as of mid-2025, and knowingly hiring an unauthorized worker carries a first-offense range of $716 to $5,724 per individual.11Federal Register. Civil Monetary Penalties Inflation Adjustments for 2025 A pattern of knowing violations can lead to criminal prosecution with up to six months imprisonment.12U.S. Citizenship and Immigration Services. Penalties for Prohibited Practices
Back Employment Taxes
Under 26 U.S.C. § 3509, if the misclassification wasn’t intentional, the employer’s income tax withholding liability is set at 1.5% of the wages paid to the reclassified worker, plus 20% of the employee’s share of Social Security and Medicare taxes.13Office of the Law Revision Counsel. 26 USC 3509 – Determination of Employer’s Liability for Certain Employment Taxes These reduced rates recognize that the contractor probably already paid self-employment tax on the same income. If the business failed to file the required information returns, or if the misclassification was intentional, the reduced rates disappear and the full tax liability applies.
Wage and Overtime Claims
The Department of Labor can pursue back minimum wage and overtime under the Fair Labor Standards Act. Workers can also sue privately for back pay plus an equal amount in liquidated damages and attorney’s fees, with a two-year statute of limitations that extends to three years for willful violations.14U.S. Department of Labor. Back Pay
Workers Sent by a Staffing Agency
If a staffing agency supplies workers to your business, the agency, not you, holds the I-9 duty. USCIS states that businesses do not complete Form I-9 for workers employed by a contractor providing contract services such as temporary staffing.15U.S. Citizenship and Immigration Services. 2.0 Who Must Complete Form I-9 The agency remains liable for verification errors even if it delegates the physical form completion. Direct engagements are different: if you hire someone yourself and label them a contractor while treating them like an employee, the I-9 responsibility is yours.
When You’re Genuinely Not Sure
Where classification is a real question, either the business or the worker can file IRS Form SS-8 asking the IRS for an official determination. The form asks who controls the schedule, who provides tools, and how the worker is paid, and the IRS rules based on common-law standards. Filing SS-8 doesn’t suspend any obligations while you wait. If you’re the business, the cheaper course is usually to treat the worker as an employee and complete the I-9 upfront, because unwinding a misclassification later costs far more than the paperwork does now.