Just got the pay stub for tomorrow's check.
My tax withholding for the period went down by 5 dollars.
My check, however, is 16 dollars less than last payday's, from the deductions for insurance and such.
Probably by March. The IRS has said they will issue guidance for the new withholding tables by the first part of February and are requesting that payroll processing software companies make every effort to update their software in February too.They'll be using the old withholding tables until the IRS has a chance to promulgate new ones.
I figure March or April before the payroll processors have a chance to catch up...