Misclassifying workers is one of the most expensive payroll mistakes a business owner can make. While hiring an independent contractor may seem like a simple way to reduce payroll costs, the IRS determines worker classification based on the nature of the working relationship, not on what the worker or business owner prefers to call it. If someone should legally be classified as an employee, misclassifying them can result in back payroll taxes, penalties, interest, audits, and even legal claims.
The IRS generally evaluates three key areas when determining whether someone is an employee or an independent contractor. First is behavioral control, which looks at whether you control when, where, and how the work is completed. Second is financial control, including who provides tools, pays business expenses, and has the opportunity for profit or loss. Finally, the IRS considers the relationship between the parties, including whether benefits are provided, the relationship is ongoing, and whether the work performed is a key part of the business.
Many cases of misclassifying workers happen unintentionally. Common warning signs include workers who only perform services for one company, work a set schedule determined by the employer, use company-provided equipment, receive detailed training, or continue performing the same work year after year. Even if a written contract labels someone as an independent contractor, the IRS will look at the actual facts of the relationship rather than the wording of the agreement.
If you are unsure how a worker should be classified, it’s far better to address the issue before it becomes a costly problem. The IRS offers Form SS-8 to request an official worker classification determination, and businesses that discover past mistakes may qualify for the Voluntary Classification Settlement Program (VCSP). Taking the time to review your worker relationships today can help you avoid significant tax liabilities and compliance issues in the future.
To learn more about misclassifying workers, listen to this Quick Tip episode of Biz Help For You, where Candy Messer explains how worker classification works, common red flags to watch for, and practical steps business owners can take to stay compliant.

Key Notes:
- Misclassifying workers can result in back taxes, penalties, interest, and audits.
- The IRS determines worker classification based on the working relationship, not a contract.
- Behavioral control, financial control, and the relationship itself are key classification factors.
- Common red flags include setting schedules, providing equipment, and ongoing work arrangements.
- Form SS-8 and the Voluntary Classification Settlement Program (VCSP) can help resolve classification questions.
- Reviewing worker classification proactively can help businesses avoid costly compliance issues.