"Employers that have not yet filed their fourth quarter Form 941 for 2012 must repay or reimburse their employees the over-collected FICA tax on the excess transit benefits for all four quarters of 2012 on or before filing the fourth quarter Form 941. The employer, in reporting amounts on its fourth quarter Form 941, may then reduce the fourth quarter wages, tips and compensation reported on line 2, the taxable social security wages reported on line 5a and Medicare wages and the tips reported on line 5c by the excess transit benefits for all four quarters of 2012. By taking advantage of this special administrative procedure, employers will avoid having to file Forms 941-X, and will also avoid having to file Forms W-2c."