Subcontractor vs employee: how classification works

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How to classify a worker correctly

1. Apply the three-factor evidence test. Behavioral control asks whether the company controls, or has the right to control, what the worker does and how they do the job. Financial control looks at how the worker is paid, whether expenses are reimbursed and who provides tools and supplies. Type of relationship weighs written contracts, employee-style benefits such as insurance or vacation pay, permanency, and whether the work is a key part of the business.
2. Weigh the whole picture, not one factor. The IRS is explicit that there is no magic number of factors that makes a worker an employee or a contractor, and no single factor stands alone. Businesses must look at the entire relationship, consider the degree of the right to direct and control, and document the factors used in coming to the determination.
3. Use Form SS-8 when it is genuinely unclear. Either the business or the worker can file Form SS-8 asking the IRS to determine the worker's status officially. The trade-off is time: the IRS notes a determination can take at least six months, so the form suits recurring, high-stakes classifications more than a single short engagement.
4. Fix misclassifications deliberately. If the facts say employee, convert the relationship: onboard the person as an employee through your entity, or through a professional employer arrangement, or, for workers abroad, through an employer of record. Employers with no reasonable basis for treating an employee as a contractor face liability for employment taxes, so the conversion is cheaper than the audit.

Where subcontractor arrangements genuinely fit

A genuine subcontractor runs an independent business: they control their methods, carry their own tools and insurance, can profit or lose on the job, work for multiple clients, and are engaged for defined deliverables rather than ongoing directed duties. Construction and trades formalised the word subcontractor, but the tax test is the same one applied to any independent contractor; what matters is the substance of control and economic independence, not the industry vocabulary.

The arrangements that fail are the ones that look like employment with an invoice attached: set hours, one client, company equipment, integration into the team, and open-ended work central to the business. Time also erodes classifications; an engagement that began as a bounded project can drift into de facto employment as the scope becomes continuous. Periodic review of long-running contractor relationships is the cheap defence.

Consequences, relief and the international dimension

Misclassification in the US makes the employer liable for employment taxes for the misclassified worker, with penalties layered on where there was no reasonable basis for the treatment. Relief provisions exist for businesses that had a reasonable basis and treated similar positions consistently, but relief is something argued after the fact; the documented classification review is what prevents the argument being needed. Nothing on this page is legal or tax advice; the facts of each engagement and the applicable law control.

Outside the US the same question is often harsher: many countries presume employment more readily, add reclassification rights for the worker, and levy social contributions retroactively. A company engaging overseas workers as contractors carries that exposure in every country involved. Where the relationship is really employment, an employer of record puts it on a compliant footing without you opening an entity; vendors in this index publish per-employee monthly fees with a median of $499, which prices the fix against the risk.

Common questions

What is the difference between a subcontractor and an independent contractor?

For tax classification, effectively none: a subcontractor is an independent contractor engaged, typically, under a prime contract in trades or construction. The IRS applies the same common-law control tests regardless of the label.

What factors make someone an employee rather than a subcontractor?

Company control over how the work is done, payment by time rather than by job, reimbursed expenses, company-provided tools, employee-style benefits, permanency, and work that is a key part of the business. No single factor decides; the IRS weighs the entire relationship.

What happens if I misclassify an employee as a subcontractor?

The business can be held liable for employment taxes for that worker, with penalties where there was no reasonable basis for the classification. Relief exists for consistent, reasonably based treatment, but it must be argued; documentation made at classification time is the real protection.

How do I handle this for workers in other countries?

Each country applies its own, often stricter, version of the test, and misclassification exposure accrues locally. For relationships that are really employment, an employer of record employs the person compliantly in their country while you direct the work, replacing open-ended risk with a monthly fee.

Coverage by country

• Employer of record vendors covering Singapore
• Employer of record vendors covering Mexico
• Employer of record vendors covering Spain
• Employer of record vendors covering Colombia
• Employer of record vendors covering United Kingdom
• Employer of record vendors covering France
• Employer of record vendors covering Hungary
• Employer of record vendors covering New Zealand