Form W-2 (officially, the "Wage and Tax Statement") is an Internal Revenue Service (IRS) tax form used in the United States to report wages paid to employees and the taxes withheld from them. Employers must complete a Form W-2 for each employee to whom they pay a salary, wage, or other compensation as part of the employment relationship. An employer must mail out the Form W-2 to employees on or before January 31. This deadline gives these taxpayers about 2 months to prepare their returns before the April 15 income tax due date. The form is also used to report FICA taxes to the Social Security Administration.