On December 26, the IRS issued a statement saying that it is developing withholding guidance to implement the Tax Cuts and Jobs Act (Pub. L. 115-97) that will be issued in January. Employers and payroll service providers will be expected to implement the new guidance when paying employees in February. The IRS stressed that the guidance “will be designed to work with existing Forms W-4 . . . and no further action by taxpayers is needed at this time.” Until then, employers and PSPs should continue using the 2017 withholding tables.