What is the main characteristic of an independent contractor?

The main characteristic of an independent contractor is that you only control the results of the work. This means that while you can specify the outcomes or deliverables that you expect, the contractor has the flexibility to determine how they will achieve those results. They typically use their own methods, tools, and schedules, and are not dependent on the hiring party to direct their work process. This level of autonomy distinguishes independent contractors from employees, who usually have less control over their work methods and are subject to the employer's direction.

In contrast, the other options reflect misunderstandings of the nature of independent contracting. For example, saying that you control how the work is done misrepresents the independence of the contractor. Hiring from an agency does not inherently define an independent contractor, as many contractors work directly with clients instead. Finally, there is no requirement for independent contractors to work part-time; they can work full-time or project-based as needed, depending on the terms of their engagement.