The legal distinction that determines tax treatment, benefit obligations, and IP ownership for workers — misclassification carries significant penalties.
Whether someone is an employee or an independent contractor is one of the most consequential legal distinctions for a business. The IRS and states use different tests, but the core question is always about control: does the company control how the work is done (method) as well as what is produced (result)? Employees are under significant company control; contractors operate with more independence.
The stakes of getting this wrong are high. Misclassifying employees as contractors means unpaid payroll taxes, unpaid benefits, and potential penalties. States like California have additional rules (the ABC test) that are harder to satisfy — California treats most workers as employees unless the business can prove otherwise on three specific criteria. Workers who are misclassified can also sue for back pay, overtime, and other employment benefits.
The classification also affects IP ownership. Work created by an employee within the scope of their job is automatically "work for hire" — owned by the employer. Work created by an independent contractor is owned by the contractor unless a written IP assignment agreement is in place. This is why every contractor agreement for anyone building anything for your company needs an explicit IP assignment clause.