Unintentional misclassifications may result in a $50 penalty for each W-2 form that was not filed for an employer classified as a contractor. The employer also faces penalties of: 1.5% of employee wages to compensate for income tax withholding, 40% of employee payroll taxes, 100% of matching employer payroll taxes plus interest on each of these penalties, and a Failure to Pay Taxes penalty of 0.5% of the unpaid tax liability for each month delinquent.