Whether a worker is an employee or an independent contractor is the single question that determines whether almost every other workplace protection applies. This article explains why the label on the paperwork does not decide it, walks through the three main legal tests and why the same worker can be an employee for one purpose and a contractor for another, and shows with worked numbers what misclassification actually costs both sides. It then covers the specific rights that turn on the answer: minimum wage and overtime, workers compensation, unemployment benefits, anti-discrimination coverage, benefit plan eligibility, and payroll tax treatment. Practical sections explain the evidence that decides these disputes, the four independent routes a worker can use to challenge a classification, and what a business should do to make a contractor relationship defensible before anyone asks. Real examples run throughout and every authority is linked to its text.