The IRS encourages all businesses and business owners to know the rules when it comes to classifying a worker as an employee or an independent contractor.

An employer must withhold income taxes and pay Social Security, Medicare taxes and unemployment tax on wages paid to an employee. Employers normally do not have to withhold or pay any taxes on payments to independent contractors.

Here are two key points for small business owners to keep in mind when it comes to classifying workers:

1. Control. The relationship between a worker and a business is important. If the business controls what work is accomplished and directs how it is done, it exerts behavioral control. If the business directs or controls financial and certain relevant aspects of a worker’s job, it exercises financial control. This includes:

The extent of the worker’s investment in the facilities or tools used in performing services
The extent to which the worker makes his or her services available to the relevant market
How the business pays the worker, and
The extent to which the worker can realize a profit or incur a loss

2. Relationship. How the employer and worker perceive their relationship is also important for determining worker status. Key topics to think about include:

Written contracts describing the relationship the parties intended to create
Whether the business provides the worker with employee-type benefits, such as insurance, a pension plan, vacation or sick pay
The permanency of the relationship, and
The extent to which services performed by the worker are a key aspect of the regular business of the company
The extent to which the worker has unreimbursed business expenses