Take the IRS test. The way I am treated, some of these are gray areas, some come down on the side of independent contractor, others are decidedly employee.
IRS 20-Factor Test: Independent Contractor or Employee
Basic Question: Who Has Control Over the Work Being Done?
Instructions. Workers who are required to comply with others’ instructions about when, where, and how they are to work are ordinarily employees.
2. Training. Training workers indicates that employers exercise control over the means by which results are accomplished.
3. Integration. When the success or continuation of a business depends on the performance of certain services, the workers performing those services are subject to a certain amount of control by the owners of the businesses.
4. Services rendered personally. If services must be rendered personally, employers control both the means and the results of the work.
5. Hiring, supervising, and paying assistants. Control is exercised if employers hire, supervise, and pay assistants.
6. Continuing relationships. Continuing relationships between workers and employers indicate that employer-employee relationships exist.
7. Set hours of work. The establishment of set hours of work by employers indicates control.
8. Full-time required. If workers must devote full time to employers’ businesses, employers have control over workers’ time. Independent contractors are free to work when and for whom they choose.
9. Doing work on employers’ premises. Control is indicated if the work is performed on employers’ premises.
10. Order or sequences set. Control is indicated if workers are not free to choose their own patterns of work but must perform services in the sequences set by the employers.
11. Oral or written reports. Control is indicated if workers must submit regular oral or written reports to employers.
12. Payment by hour, week, or month. This points to employer-employee relationships, provided that this method of payment is not just a convenient way of paying a lump sum agreed on as the cost of a job. Independent contractors are usually paid by the job or on straight commission.
13. Payment of business and/or traveling expense. Employers paying workers’ expenses of this nature shows that employer-employee relationships usually exist.
14. Furnishing tools and materials. If employers furnish significant tools, materials, and other equipment, employer-employee relationships usually exist.
15. Significant investments. Workers are independent contractors if they invest in facilities that are not typically maintained by employees (such as an office rented at fair market value from an unrelated party). Employees depend on employers for such facilities.
16. Realization of profits or losses. Workers who can realize profits or losses (in addition to profits or losses ordinarily realized by employees) they are independent contractors. Workers who cannot are generally employees.
17. Working for more than one firm at a time. If workers perform services for a number of unrelated persons at the same time, they are usually independent contractors.
18. Making services available to the general public. Workers are usually independent contractors if they make their services available to the general public on a regular and consistent basis.
19. Right to discharge. The right of employers to discharge workers indicates that the workers are employees.
20. Right to terminate. Workers are employees if they have the right to end their relationships with their principals at any time without incurring liability.