What does TX SITW deduction on your check?

TX SITW stands for Texas State Income Tax Withholding. However, Texas does not have a state income tax, so if you see a TX SITW deduction on your paycheck, it might be an error or related to other forms of withholding, such as local taxes or a specific deduction for another purpose. It's advisable to check with your employer or payroll department for clarification.