From intuit — A 10 question wizard to help determine if a worker is an independent contractor or employee. By answering ten questions the user is provided a result that that the workers is “Highly likely”, “More likely” or Somewhat likely” to be classified as either an independent contractor or an employee. I tried the wizard several times answering the questions differently and it provides good general guidance on whether a worker is likely to be classified as an independent contractor or employee.
1099 vs W2 – Is your worker an Independent Contractor or Employee?.