Subcontractor vs. Independent Contractor: What's the Difference?

If you hire outside professionals to help your project move faster, you should know how to classify them. Many business owners assume that independent contractors and subcontractors are the same. Actually, they are not — in all aspects — from tax obligations and legal liability to the risks you face when working with them.

This guide explains the key differences in 1099 employee vs. subcontractor cooperation and how they may impact those who hire them, so you always know what to expect. 

An independent contractor, also called a 1099 employee, is a self‑employed individual or business that provides services to a client under a contract. They are usually hired to complete short-time projects or deliver a specific result rather than to fill a long-term role within a single company. 

Hiring independent contractors is common in many industries. They are:

Independent contractors are called this way for a reason. They operate as a separate entity. It means they determine how the work is performed, manage their own workflow, and are responsible for meeting agreed deadlines. All these details are documented in an independent contractor agreement signed by both the 1099 employee and the client.

A subcontractor is a person or company hired by a contractor to handle part of a larger project. They are not hired directly by the client. Instead, they work under a subcontractor agreement with the main contractor. The document specifies their responsibilities, scope of work, payment, and liability.

Subcontractors are brought in when a project requires specific skills or extra support. Rather than doing everything alone, the main contractor assigns certain tasks to specialists who can complete that portion of the work better and faster.

This structure of business relationships is especially common in industries such as:

Even though subcontractors often run their own businesses, they are responsible to the main contractor, and the latter is expected to deliver the full project to the client.

The main difference comes down to who hires whom. A client hires an independent contractor. The contractor hires a subcontractor to complete part of the work. So, instead of managing many service providers, the client works with a single primary contractor who controls the entire project.

The hierarchy of communication is the same: 

Responsibility, however, can move upward. In construction, for example, general contractors are often responsible for overall site safety, which requires a special type of contract — a construction subcontractor agreement. If a subcontractor fails to follow safety rules, the general contractor may still be held accountable.

Subcontractor vs. contract labor may seem similar at first glance, but they differ in many aspects. For clients who hire outside professionals, it is important to understand these distinctions. They affect tax reporting, contractual responsibility, and liability, especially when questions about performance and accountability arise. 

In the U.S., worker misclassification can lead to significant penalties. Therefore, a business that works with contractors and subcontractors should have these documents ready:

From an IRS perspective, independent contractors and subcontractors are the same. Both are self‑employed individuals or entities, not employees. It means neither receives wage withholding from the hiring party. No federal income tax, Social Security, or Medicare taxes are automatically withheld from their payments.

Instead, both are responsible for paying self‑employment tax (15.3% on net earnings in addition to regular federal income tax) and filing the following forms:

Meanwhile, businesses that hire outside professionals are required to issue Form 1099‑NEC to any independent contractor or subcontractor who is paid $600 or more during the calendar year for the project. If you fail to issue this form, prepare for IRS penalties.

The most important thing here is who makes the payment. If you pay an independent contractor directly, you issue the 1099‑NEC to that contractor. But if your contractor pays a subcontractor, it is the contractor who must issue the form.

Employment classification is one of the highest‑risk compliance areas for businesses that rely on contract labor. Simply calling someone an “independent contractor” or “subcontractor” in a written agreement does not determine their legal status.

The U.S. Department of Labor (DOL) and the IRS look at the actual working relationship, not just the contract terms. They apply the so-called Economic Reality Test that evaluates six key factors, including:

If a worker is economically dependent on your business, they may legally qualify as an employee — regardless of how the agreement describes them. Therefore, before you start any working relationship with a contractor or subcontractor, make sure they will not be classified as employees.

Independent contractors are typically responsible for getting their own insurance coverage. This includes:

Subcontractors are also expected to maintain their own insurance policies. In construction and other high‑risk industries, contracts commonly require them to: 

If a subcontractor gets injured at work, their workers’ compensation insurance usually covers all the medical costs and part of lost wages. However, if the subcontractor does not have the required coverage, it can be the independent contractor who will be held responsible under state law. To avoid such unexpected situations, it is important to verify insurance coverage and define responsibility in the subcontractor agreement.

Liability depends on who has the contract with the client and who is responsible for the results.

In high‑risk industries, liability is often shared across multiple levels: 

If something goes wrong, such as defective work, property damage, or injury occurs, responsibility is determined by:

Though at first glance there is no difference for a business in who to hire, working with independent contractors only or with subcontractors as well affects many things: cost, control, liability, and project management. Each option has its own advantages:

This structure often works best for specialized or smaller‑scale projects.

This model is particularly beneficial for complex, multi‑phase, or construction‑related projects.

Working with outside professionals requires business owners to pay special attention to details and constant control. Though contractors usually organize their working process independently, the client is always the one interested in a successful completion of the project. For this, it is important to be aware of the problems that may arise in cooperation with contractors and subcontractors:

Even if contractors get the money from clients on time, they may delay payments to subs, which can negatively impact the work completion and quality. Ask the contractor to provide proof of all payments they make to subcontractors.

Hiring external professionals is a great solution for huge projects with tight deadlines. Besides, it can bring unique expertise none of your employees or contractors has. Therefore, the understanding of the sub contractor vs. independent contractor difference and the hierarchy within which they operate is important. Once you know all the legal details and possible pitfalls of such cooperation, you can avoid many misunderstandings and legal problems in your work with hired specialists.